mysql_install_db and error 22
This is a new 4.0.17 source install on Panther, and this is as far as I got. sudo /usr/local/mysql/bin/mysql_install_db Preparing db table Preparing host table Preparing user table Preparing func table Preparing tables_priv table Preparing columns_priv table Installing all prepared tables Got error 22 when trying to lock mutex at log.cc, line 1689 /usr/local/mysql/bin/mysql_install_db: line 1: 11940 Abort trap /usr/local/mysql/libexec/mysqld --bootstrap --skip-grant-tables --basedir=/usr/local/mysql --datadir=/usr/local/mysql/var --skip-innodb --skip-bdb Installation of grant tables failed! I followed the articles: http://developer.apple.com/internet/macosx/osdb.html and cross-referenced with: http://www.mysql.com/doc/en/Quick_install.html I am a newbie so if there are any answers please spell it out for me : ) Thanks, atucovic -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
newbie question about calculations
Please excuse me if I do not use the correct terminology for what I am trying to descibe. I am new to mySQL and am using FileMaker and Lass to export Filemaker data for use with mySQL. How do you make a field that is the sum of two other fields in the same record? I have riffled through the mySQL manual, but I still have no clue on how to make calculation fields. Right now I have FileMaker talking to mySQL 4.0.15 using the JDBC driver and a SQL plug-in for Filemaker. And it is working very well, for static data, But Anyway, this is a sample of my current code to create my Table called, cart: CREATE TABLE Cart ( ID bigint(20) NOT NULL auto_increment , Field1 varchar (5) , Field2 varchar (5) , Field3 varchar (5) , KEY `ID` (`ID`) ) And code to input data into the table: INSERT INTO cart ( Field1, Field2, Field3 ) VALUES ( '1', '1', '2') How do I make Field3 a calculation, which equals 2 if fields 1 2 where values set to 1? Any pointers in the right direction would be sincerely appreciated. Aloha, Daryl Hansen -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: newbie question about calculations
On 27 Dec 2003, at 08:59, daryl hansen wrote: How do I make Field3 a calculation, which equals 2 if fields 1 2 where values set to 1? Any pointers in the right direction would be sincerely appreciated. Take a look at 6.3.1.3 and 6.3.1.4 in the MySQL documentation for logical operators and control flow functions. HTH Steve. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: foreign keys plz?
Hi, Hi there. I heave heared that mysql doesnot support foreign keys? It does, but only with the InnoDB table type. With regards, Martijn Tonies Database Workbench - developer tool for InterBase, Firebird, MySQL MS SQL Server. Upscene Productions http://www.upscene.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: How to use API to write blobs
On Fri, Dec 26, 2003 at 09:35:42PM -0500, Angus March wrote: Angus, On Fri, Dec 26, 2003 at 08:26:38PM -0500, Angus March wrote: I'm trying to use the API to write to a MEDIUMBLOB, but I'm getting a very vague error: something about a problem near '' on line 1. I'm forumating the query string w/ sprintf(query, INSERT INTO support_files (session_id,file_type,file_body) VALUES (%ld,%ld,, sessionID,fileType); Then w/calls to things like memcpy, and unformatted reads from a stream, I append the blob to the end of that, and finalize it w/a ')'. I'm very Well, your blob data may contain a NUL character, which will end your query string. It may contain quotes, a comma, ')' and other nasty stuff. You can't expect the MySQL parser to understand when these characters are part of your blob data and when they are meant to end your query or separate your query parameters. It is all just one single (long) query string that the parser needs to work with. So you will need to escape at least the following in your blob data: NUL because it is a C string terminator ' because it would terminate your blob 'string' [snip] Are you sure this is how it works? If you need to escape stuff, you aren't dealing with binary data, you are dealing with a character string. The first Correct. Queries are character strings, so you'll need to encode your binary data as such. part starts off as a character string (with the INSERT and everything) but the manual explicitly calls blob data in a query binary. Furthermore, it acknowledges the presence of string-unfriendly characters; specifically, the '\0'. Check out: http://www.mysql.com/documentation/mysql/bychapter/manual_Clients.html#mysql_real_query The quote I'm thinking of is: You must use mysql_real_query() rather than mysql_query() for queries that contain binary data, because binary data may contain the `\0' character That's a confusing statement IMHO. It may not be necessary to escape the NUL character, but you still need to create a valid query. There is no way to do that other than putting your binary data into a quoted string in your query. Again, how would the MySQL parser see where your binary data ends? How would the parser distinguish two binary values from one binary value? Binary is a property of the column. It has nothing to do with queries per se. Values in CHAR and VARCHAR columns are sorted and compared in case- insensitive fashion, unless the BINARY attribute was specified when the table was created. The BINARY attribute means that column values are sorted and compared in case-sensitive fashion according to the ASCII order of the machine where the MySQL server is running. BINARY doesn't affect how the column is stored or retrieved. (http://www.mysql.com/documentation/mysql/bychapter/index.html#CHAR) You might want to look at the example at this URL: http://www.mysql.com/documentation/mysql/bychapter/index.html#mysql_real_escape_string Regards, Fred. -- Fred van Engen XB Networks B.V. email: [EMAIL PROTECTED]Televisieweg 2 tel: +31 36 5462400 1322 AC Almere fax: +31 36 5462424 The Netherlands -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: sending array data using php mail
--- Mike Johnson [EMAIL PROTECTED] wrote:
For the record, there's a syntax error in there --
the closing curly brace is missing.
echo {$row[Password]}\n;
^
Also, I've never tried this syntax with
double-quotes. Do the curly braces keep the PHP
parser from thinking that the opening for Password
is a close of the string? I use single quotes in
that kind of situation, FWIW.
yeah, my bad, the ending curly braces were missing.
when using double quotes, the curly braces are there
so that it can identify the whole variable as an array
type. yeah, it would probably mix up the meaning of
the double quotes in the array key name. even i use
single quotes for array keys, was just showing how the
syntax should be in that situation.
the manual uses and ' quotes in just about all
contexts anyway. if the whole thing is in double
quotes then it needs curly braces anyway, regardless
of which quotes i use for the key. i haven't come
across anything specific regarding this in the
documentation. for the array stuff in strings and
filehandling, it's shown with single quotes. whereas,
in the array function examples, they use double
quotes. not using any quotes... END_OF_EXAMPLE
// Works but note that this works differently outside
string-quotes
echo A banana is $fruits[banana].;
END_OF_EXAMPLE;
so for safety, i use curly braces and single quotes.
maybe double quotes can be used when u want to use a
weird key name like: $a[all$myvars_start_with_all]
though $a['all'.$myvars_start_with_all.'EVERYWHERE']
would be clearer in that case. (uself if u're
importing variables and prefixing them with something
so that u don't need to re-write code u've written
and/or can adapt code written for register globals on
while using it when off.
just mho.
abs
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num rows / pages
hi i was trying to group my results 10 per page ($p per per page). if i use limit, then there's no way of knowing how many there are left so i can't give page numbers as: first 2 3 4 last . perhaps running the query twice, first time wihtout limit to see how many there were and the 2nd just for a particular bunch with limit. wouldn't that load the mysql db? and what if i've got 10,000 rows or so? the query will take time. any solutions? thanks abs Yahoo! Messenger - Communicate instantly...Ping your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: num rows / pages
On Sat, Dec 27, 2003 at 02:08:08PM +, Abs wrote: hi i was trying to group my results 10 per page ($p per per page). if i use limit, then there's no way of knowing how many there are left so i can't give page numbers as: first 2 3 4 last . perhaps running the query twice, first time wihtout limit to see how many there were and the 2nd just for a particular bunch with limit. wouldn't that load the mysql db? and what if i've got 10,000 rows or so? the query will take time. any solutions? Use SQL_CALC_FOUND_ROWS. Documented in http://www.mysql.com/doc/en/SELECT.html You run your first query with SQL_CALC_FOUND_ROWS, then once you're done with it, you run another (SELECT FOUND_ROWS()) and you get the total resultcount you would have got, had you not LIMIT'ed it. -- Chris -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: foreign keys plz?
with myIsam? Does not check about integrity? Mysql 3.2? What u will use for your application Innodb or MyISAM? --- Martijn Tonies [EMAIL PROTECTED] wrote: Hi, Hi there. I heave heared that mysql doesnot support foreign keys? It does, but only with the InnoDB table type. With regards, Martijn Tonies Database Workbench - developer tool for InterBase, Firebird, MySQL MS SQL Server. Upscene Productions http://www.upscene.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] __ Do you Yahoo!? New Yahoo! Photos - easier uploading and sharing. http://photos.yahoo.com/ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: How to use API to write blobs
On Fri, Dec 26, 2003 at 09:35:42PM -0500, Angus March wrote: Angus, On Fri, Dec 26, 2003 at 08:26:38PM -0500, Angus March wrote: I'm trying to use the API to write to a MEDIUMBLOB, but I'm getting a very vague error: something about a problem near '' on line 1. I'm forumating the query string w/ sprintf(query, INSERT INTO support_files (session_id,file_type,file_body) VALUES (%ld,%ld,, sessionID,fileType); Then w/calls to things like memcpy, and unformatted reads from a stream, I append the blob to the end of that, and finalize it w/a ')'. I'm very Well, your blob data may contain a NUL character, which will end your query string. It may contain quotes, a comma, ')' and other nasty stuff. You can't expect the MySQL parser to understand when these characters are part of your blob data and when they are meant to end your query or separate your query parameters. It is all just one single (long) query string that the parser needs to work with. So you will need to escape at least the following in your blob data: NUL because it is a C string terminator ' because it would terminate your blob 'string' [snip] Are you sure this is how it works? If you need to escape stuff, you aren't dealing with binary data, you are dealing with a character string. The first Correct. Queries are character strings, so you'll need to encode your binary data as such. part starts off as a character string (with the INSERT and everything) but the manual explicitly calls blob data in a query binary. Furthermore, it acknowledges the presence of string-unfriendly characters; specifically, the '\0'. Check out: http://www.mysql.com/documentation/mysql/bychapter/manual_Clients.html#mysql_real_query The quote I'm thinking of is: You must use mysql_real_query() rather than mysql_query() for queries that contain binary data, because binary data may contain the `\0' character That's a confusing statement IMHO. It may not be necessary to escape the NUL character, but you still need to create a valid query. There is no way to do that other than putting your binary data into a quoted string in your query. Again, how would the MySQL parser see where your binary data ends? How would the parser distinguish two binary values from one By using the length parameter in the mysql_real_query() header. binary value? Binary is a property of the column. It has nothing to do with queries per se. Values in CHAR and VARCHAR columns are sorted and compared in case- insensitive fashion, unless the BINARY attribute was specified when the table was created. The BINARY attribute means that column values are sorted and compared in case-sensitive fashion according to the ASCII order of the machine where the MySQL server is running. BINARY doesn't affect how the column is stored or retrieved. (http://www.mysql.com/documentation/mysql/bychapter/index.html#CHAR) You might want to look at the example at this URL: http://www.mysql.com/documentation/mysql/bychapter/index.html#mysql_real_escape_string I didn't notice this function before. That and mysql_real_query() don't seem to be written with each other in mind. It even encodes the '\0', which mysql_real_query() is said to be able to deal w/. In fact, why should I need to use mysql_real_query() over mysql_query() if I use mysql_real_escape_string()? Well, whatever the reason, I guess this is what API guys are expected to use. I'll try that and see how it goes. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Quering user privileges
Yes, a cron job will make the solution more robust. I'm new to *classic* client-server DB apps and I'm still amazed for a so standard issue I have to find tricks. Particularly I wonder at this: standard SQL commands exist to assign (GRANT) and remove (REVOKE) privileges, but there is not a SQL command to query current privileges. On Wed, 24 Dec 2003 14:17:45 -0500 Michael Stassen [EMAIL PROTECTED] wrote: Plinio Conti wrote: Yes, I think I will do it with an additional table on the db server, for the moment (I have no time to implement parsing etc...) The problem is, like you stated, to mantain that table up to date with changes in system tables. The best solution would be a trigger for this, but we haven't them at the moment in MySQL. Since any other solution will expose the client app to the possibility it has invalid information, I will have to handle access denied etc... but this is the less. I will have to pray system administrators to do user management exclusivly through a special application provided by me, which will keep the *table* updated. If administrators will use MySQL to store other databases than mine, my solution will be quite poor. There's a middle road. Since you're writing a program to maintain your additional table anyway, you could (should?) write a cron job to make sure it stays in sync. That way, instead of relying on humans (the system administrators) to do the right thing, you automatically fix it for them when they don't. Have it run once a day, every hour, every 10 minutes, ... whatever frequency seems the best balance for your app. In fact, if you're willing to live with the lag, and don't trust your SAs, you could skip the user management app and stick with just the cron job. Michael -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: How to use API to write blobs
Angus,
On Sat, Dec 27, 2003 at 11:09:54AM -0500, Angus March wrote:
On Fri, Dec 26, 2003 at 09:35:42PM -0500, Angus March wrote:
http://www.mysql.com/documentation/mysql/bychapter/manual_Clients.html#mysql_real_query
The quote I'm thinking of is:
You must use mysql_real_query() rather than mysql_query() for queries
that
contain binary data, because binary data may contain the `\0' character
That's a confusing statement IMHO. It may not be necessary to escape the
NUL character, but you still need to create a valid query. There is no
way to do that other than putting your binary data into a quoted string
in your query. Again, how would the MySQL parser see where your binary
data ends? How would the parser distinguish two binary values from one
By using the length parameter in the mysql_real_query() header.
The single length parameter would pass the total length of the query
string, not the length of each (or any) of its binary values.
You might want to look at the example at this URL:
http://www.mysql.com/documentation/mysql/bychapter/index.html#mysql_real_escape_string
I didn't notice this function before. That and mysql_real_query() don't
seem to be written with each other in mind. It even encodes the '\0', which
mysql_real_query() is said to be able to deal w/. In fact, why should I need
to use mysql_real_query() over mysql_query() if I use
mysql_real_escape_string()?
Right. I guess you would only need mysql_real_query if you do your own
escaping without escaping NUL characters or if you want to save a few
CPU cycles and already know the length. Look at the implementation of
mysql_query:
int STDCALL
mysql_query(MYSQL *mysql, const char *query)
{
return mysql_real_query(mysql,query, (uint) strlen(query));
}
Well, whatever the reason, I guess this is what API guys are expected to
use. I'll try that and see how it goes.
Regards,
Fred.
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Re: foreign keys plz?
* Alaios with myIsam? Does not check about integrity? That is correct, the myisam table handler does not support foreign key constraints. It does of course support foreign keys, but not foreign key constraints, consequently the foreign key itegrity is not checked for myisam tables. Mysql 3.2? (I suppose you meant 3.23) What u will use for your application Innodb or MyISAM? Both? It would depend on your needs. Foreign key constraints is neat, and in some projects it might be a requirement, but the myisam table handler is lighter because it does not do these checks, and it is also not transactional, thus it is faster than InnoDB in many cases. myisam also requires less disk space. Read more about the different table handlers in the manual, and note that you can combine different table types in the same database and in the same statement: URL: http://www.mysql.com/doc/en/Table_types.html -- Roger -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
backup
i guys!! im newbie, how can i backup a mysql database? what do you recommend me? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: num rows / pages
--- Chris Elsworth [EMAIL PROTECTED] wrote: Use SQL_CALC_FOUND_ROWS. Documented in http://www.mysql.com/doc/en/SELECT.html You run your first query with SQL_CALC_FOUND_ROWS, then once you're done with it, you run another (SELECT FOUND_ROWS()) and you get the total resultcount you would have got, had you not LIMIT'ed it. thanks. i didn't know there was such a function. nice. now all i've to do is get the site hosting ppl to upgrade to 4.x :P fortunately, in this case, the table to browse will always be scanned entirely so my big set is the number of rows of the table (there's no where clause). so the SHOW TABLE STATUS FROM db LIKE tbl will do. 'Rows' has what i need. just in case anyone else was in a similar situation. abs Yahoo! Messenger - Communicate instantly...Ping your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: How to do case sensitive replace with wild card matching?
At 12:44 AM 12/27/2003, Michael Stassen wrote: You're welcome. I did suggest some (not very elegant) SQL in my first note. I take it that didn't turn out to be useful. It's possible that if you were to describe why not, someone could make a better suggestion. Of course, I suppose you may have already solved this in Delphi. mos wrote: Chris Michael, Thanks for the feedback. I was hoping it could be done in SQL without using Perl since I don't have any experience with it. But I can use some of the ideas you gave me to create a Delphi program quick enough. Thanks again. :) Mike Mike, Thanks again for your insight. Re: your SQL solution: Perhaps we can take advantage of what we know about your data. I will pretend your table is named table1 and your column with the letters is named code. If I understand you correctly, the code column has some number of capital letters followed by 2 or 3 lower case letters. If that's true, I think we could do this in 2 updates, like this: Unfortunately there could be more than 2 or 3 lowercase letters. (That's my fault for not explaining the scope of the problem more thoroughly). Example: Ab or Abcdfg or ABCDEFg or ABCDEFghijk etc. Instead of writing a Perl script which I don't know or have (but I have used PHP though), I would find it easier to roll my own Delphi program to do it. I'm a bit lazy and was hoping the MySQL functions could do it in SQL only, but it looks like that's not possible. Thanks again for the effort. :-) Mike -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
VC++ and mysql and openssl
Hello there, I am having a bit of trouble to get a ssl enabled client working on windows. For testing purposes i was trying to compile mysqldump useing ssl. it compiles and loads okay but right after i enter the password i get a debug assertion failed in file dbgheap.c on line 1044. (the server its talking to is a mysqlsql version 4.0.13 on unix) i am using openssl version openssl-0.9.7a and mysql-4.0.17. Has anyone else seen this type of error before? thanks for the help! Aaron __ __ __ __ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: How to use API to write blobs
On Sat, Dec 27, 2003 at 11:09:54AM -0500, Angus March wrote: On Fri, Dec 26, 2003 at 09:35:42PM -0500, Angus March wrote: http://www.mysql.com/documentation/mysql/bychapter/manual_Clients.html#mysql_real_query The quote I'm thinking of is: You must use mysql_real_query() rather than mysql_query() for queries that contain binary data, because binary data may contain the `\0' character [snip] http://www.mysql.com/documentation/mysql/bychapter/index.html#mysql_real_escape_string I didn't notice this function before. That and mysql_real_query() don't seem to be written with each other in mind. It even encodes the '\0', which mysql_real_query() is said to be able to deal w/. In fact, why should I need to use mysql_real_query() over mysql_query() if I use mysql_real_escape_string()? [snip] It seems there's a little more to it than this. Also like a character string, a character string-encoded blob has to be enclosed in single quotes. Early on I tried double quotes, then when that didn't work, I went through a very long process of trying long strings of decimal numbers, with varied result, many of which didn't generate an error even. When I finally hit on single quotes, it came together. I remember fighting for rather a long time w/SQL a few years ago over the single quote problem w/character strings, but that was different from blobs. I really wish the documentation I read was clearer about handling blobs. Well, thanks for putting me on the right track. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: How to use API to write blobs
On Fri, 2003-12-26 at 19:26, Angus March wrote: I'm trying to use the API to write to a MEDIUMBLOB, but I'm getting a very vague error: something about a problem near '' on line 1. I'm forumating the query string w/ sprintf(query, INSERT INTO support_files (session_id,file_type,file_body) VALUES (%ld,%ld,, sessionID,fileType); Then w/calls to things like memcpy, and unformatted reads from a stream, I append the blob to the end of that, and finalize it w/a ')'. I'm very careful about what I do w/my pointers, and not to use string-handling functions on the blob data. I also use mysql_real_query(), which is where the error is returned. From what I can tell from the on-line documentation, this is the right way to handle blobs. I also tried: sprintf(query, INSERT INTO support_files (session_id,file_type,file_body) VALUES (%ld,%ld,0), sessionID,fileType); //exact same as before, but the blob is a mere '0' Is this right? I can use a char * to point to binary data, can't I? I'm running Linux RH9, if that makes a difference. If you are using MySQL 4.1, it would be a lot easier to use Prepared SQL statements as outlined in section 11.1.4 of the manual, which allows you to pass variable parts of queries in a length-specified binary format, rather than requiring that all the data in the query be escaped for MySQL. Short of using 4.1, you could do something like you've done above with sprintf but, but with the whole query. I find it a little easier to be sure that the whole query is valid by having the entire query in a single string rather than trying to build the query by appending successive parts. In this case, you can also test that the query works with data that doesn't need to be escaped without butchering your code (you can just change the format string in the snprintf to some literal data to verify that it works. --8-pseudo-code--8 char *blob_data = some big buffer of blob data; unsigned long blob_data_length = you-should-know-this-value; blob_data_escaped = (char *) malloc(blob_data_length * 2+1); escaped_length = mysql_real_escape_string( (MYSQL *) mysql, (char *) blob_data_escaped, (const char *) blob_data, (unsigned long) blob_data_length); /* blob_data_escaped[escaped_length] should be the only null byte in blob_data_escaped now, so the snprintf below should work just fine */ query_length = some-huge-amount-that-can-hold- escaped_length-plus-the-rest-of-the-query; query = (char *)malloc(query_length); snprintf(query, query_length, insert into s (i,f,b) values (%d, %f, '%s'), some_integer, some_float, blob_data); --8-pseudo-code--8 See the query string? Other than the fact it contains the printf escape sequences, it's a syntacticly correct query, closing parens and all. You could change that to: snprintf(query, query_length, insert into s (i,f,b) values (%d, %f, '%s'), 1, 2.0, blob\\'test\\0has embedded null byte); to make sure the query is syntacticly correct. If you print out the query (so you know what it is), then try pasting it into the mysql client, you should be able to run it without problems (as a way to test where there are problems with it). The C library functions that print stuff out are bound by the same string-interpretation limits that the MySQL library is, so if your query comes up short, or syntacticly incorrect due to those limitations, you'll see it. You could also abstract this out the pseudo-code I've provided above to a function that formats a query for you if you give it all the data values and the lengths of the input buffers and whatnot (thereby making it work somewhat more like the prepared statement support in 4.1). (BTW, you should get in the habit of using snprintf rather than sprintf, if your platform supports it, in order to avoid buffer overruns). -- Andy Bakun [EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Core Certification
Hello everybody ! I have question regarding the MySQL core certification. Does anybody have any general insights on taking the exam ? I am studying from the manual, but I am pretty nervous about the exam as I don't know how much in depth the questions will be or even if studying from the manual alone will be sufficient. I would appreciate any thoughts or comments from anyone about the exam.Thanks ! -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Quering user privileges
On Sat, Dec 27, 2003 at 05:40:46PM +0100, Plinio Conti wrote: Yes, a cron job will make the solution more robust. I'm new to *classic* client-server DB apps and I'm still amazed for a so standard issue I have to find tricks. Particularly I wonder at this: standard SQL commands exist to assign (GRANT) and remove (REVOKE) privileges, but there is not a SQL command to query current privileges. At least on MySQL 4.0.16, SHOW GRANTS FOR [EMAIL PROTECTED]; shows me the relevent info. I don't know if that's MySQL specific, or not present in 3.x or something. -- Jim Richardson http://www.eskimo.com/~warlock A conclusion is simply the place where someone got tired of thinking. signature.asc Description: Digital signature
Re: newbie question about calculations
On 27 Dec 2003, at 21:04, daryl hansen wrote: I can't find anything in the manual about proper syntax for this when creating a table. All I want is my Price field to equal the total of my Adults and Children fields. Can someone please draw me a picture? CREATE TABLE Cart ( ID bigint (20) NOT NULL auto_increment , SessionID varchar (50) , Activity_ID varchar (5) , Company_ID varchar (5) , Submitted varchar (5) , Vendor varchar (50) , Activity varchar (50) , Adult_Label varchar (20) , Child_Label varchar (20) , Other_Label varchar (20) , Price_Adult varchar (10) , Price_Child varchar (10) , Price_Other varchar (10) , Price bigint (20) , Tax varchar (10) , Adults bigint (5) , Children bigint (5) , Other varchar (5) , Date date , CreateDate date , KEY `ID` (`ID`) ) Thanks, Daryl Hansen On Dec 26, 2003, at 11:54 PM, Steve Folly wrote: On 27 Dec 2003, at 08:59, daryl hansen wrote: How do I make Field3 a calculation, which equals 2 if fields 1 2 where values set to 1? Any pointers in the right direction would be sincerely appreciated. Take a look at 6.3.1.3 and 6.3.1.4 in the MySQL documentation for logical operators and control flow functions. HTH Steve. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] You can only use these functions from a select statement; not in a CREATE TABLE statement. To be honest, there is (usually[1]) no point in having an extra column that is the always the result of some arithmetic expression involving other columns. It wastes space. You're better off calculating it in the query. Steve. [1] - I say 'usually' - I'm sure there are times when you would want to do this, perhaps caching lengthy calculations; but adding 2 numbers isn't! ;) -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Selecting the latest entries
* Ville Mattila I have a table containing weather reports of different types and cities. The structure is following: - type - city - time - report Which kind of query should I use to select the latest reports of specified cities. I mean, if I had three different types of reports for Helsinki and Turku, how can I get them all in one query? Use a sub-select if you can, or see the MAX-CONCAT trick: URL: http://www.mysql.com/doc/en/example-Maximum-column-group-row.html -- Roger -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: backup
-Message d'origine- De : Rick [mailto:[EMAIL PROTECTED] Envoyé : Saturday, December 27, 2003 6:33 AM À : [EMAIL PROTECTED] Objet : backup i guys!! im newbie, how can i backup a mysql database? what do you recommend me? mysqldump to begin -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: backup
* Rick ([EMAIL PROTECTED]) wrote: i guys!! im newbie, how can i backup a mysql database? what do you recommend me? man mysqldump -- .''`. Carl B. Constantine : :' : [EMAIL PROTECTED] `. `'GnuPG: 135F FC30 7A02 B0EB 61DB 34E3 3AF1 DC6C 9F7A 3FF8 `- Debian GNU/Linux -- The power of freedom Claiming that your operating system is the best in the world because more people use it is like saying McDonalds makes the best food in the world. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Need help with a query
Hello everyone,
I need help with MySQL coding in php please if anyone can help.
I have 3 tables:
-users, where the user info is stored.
-awards: contains the list of all the awards for each user
-award_types: contains different types of award
The tables are at the bottom of the page.
What I need to do is look at these tables when a user id is being viewed and
display the awards image that the user has won.
A user can have multiple awards.
CREATE TABLE `award_types` (
`id` tinyint(3) unsigned NOT NULL auto_increment,
`award_type` varchar(255) NOT NULL default '',
`award_image` varchar(250) default NULL,
`gender` enum('m','f') NOT NULL default 'm',
`order_by` tinyint(3) NOT NULL default '0',
PRIMARY KEY (`id`)
)
#
# Dumping data for table `award_types`
#
INSERT INTO `award_types` VALUES (1, 'November 2003', nov.gif, 'm', 0);
INSERT INTO `award_types` VALUES (2, 'December 2003', dec.gif, 'm', 1);
INSERT INTO `award_types` VALUES (3, 'January 2004', jan.gif, 'm', 2);
INSERT INTO `award_types` VALUES (4, 'February 2004', feb.gif, 'm', 3);
CREATE TABLE `awards` (
`id` bigint(20) unsigned NOT NULL auto_increment,
`user_id` bigint(20) NOT NULL default '0',
`award_id` bigint(20) NOT NULL default '0',
`chosen` varchar(20) NOT NULL default '',
PRIMARY KEY (`id`),
KEY `id` (`id`),
KEY `chosen` (`chosen`)
)
#
# Dumping data for table `awards`
#
INSERT INTO `awards` VALUES (1, 1, 1, 'enabled');
INSERT INTO `awards` VALUES (3, 1, 2, 'enabled');
CREATE TABLE `users` (
`id` bigint(20) unsigned NOT NULL auto_increment,
`username` varchar(16) NOT NULL default '',
`password` varchar(16) NOT NULL default '',
`hint` varchar(100) NOT NULL default '',
`realname` varchar(48) NOT NULL default '',
`description` text NOT NULL,
`age` tinyint(2) unsigned NOT NULL default '0',
`user_type` tinyint(3) unsigned NOT NULL default '0',
`state` varchar(32) NOT NULL default '',
`country` varchar(32) NOT NULL default 'United_States.gif',
`email` varchar(48) NOT NULL default '',
`url` varchar(255) NOT NULL default '',
`quote` varchar(255) NOT NULL default '',
`image` enum('here','there') NOT NULL default 'there',
`image_url` varchar(144) NOT NULL default '',
`image_ext` varchar(4) NOT NULL default '',
`image_status` enum('enabled','disabled','queued','approved') NOT NULL
default 'enabled',
`total_comments` int(10) unsigned NOT NULL default '0',
`subscribed` enum('yes','no') NOT NULL default 'yes',
`md5key` varchar(32) NOT NULL default '',
`signup` varchar(14) NOT NULL default '',
`timestamp` timestamp(14) NOT NULL,
`is_approved` enum('0','1') NOT NULL default '1',
`total_files` smallint(6) NOT NULL default '0',
`last_logged` datetime NOT NULL default '-00-00 00:00:00',
`city` varchar(32) NOT NULL default '0',
`address` varchar(64) default NULL,
`zip` varchar(32) default NULL,
`talent` varchar(32) default NULL,
`phone` varchar(32) default NULL,
`height` varchar(10) default NULL,
`weight` varchar(10) default NULL,
`education` varchar(32) default NULL,
`hobby` varchar(32) default NULL,
`topregion` enum('enabled','disabled') NOT NULL default 'disabled',
`top30` enum('enabled','disabled') NOT NULL default 'disabled',
`top10` enum('enabled','disabled') NOT NULL default 'disabled',
`top` enum('enabled','disabled') NOT NULL default 'disabled',
`total_ratings` smallint(5) unsigned default '1',
`total_points` mediumint(9) unsigned default '10',
`average_rating` decimal(6,4) default '10.',
`art` text,
`language` text,
`sport` text,
`skill` text,
`experience` text,
`club` text,
`lastname` varchar(250) default NULL,
`secondid` varchar(32) default NULL,
`chosens` enum('enabled','disabled') default 'disabled',
`email_status` enum('enabled','disabled','queued','approved') NOT NULL
default 'enabled',
`chosen` varchar(20) NOT NULL default 'enabled',
PRIMARY KEY (`id`),
UNIQUE KEY `md5key` (`md5key`),
UNIQUE KEY `username_2` (`username`),
UNIQUE KEY `email_2` (`email`),
KEY `sex` (`user_type`),
KEY `timestamp` (`timestamp`),
KEY `signup` (`signup`),
KEY `username` (`username`),
KEY `email` (`email`),
KEY `subscribed` (`subscribed`)
)
#
# Dumping data for table `users`
#
INSERT INTO `users` VALUES (1, 'username', 'password', 'firstname',
'lastname', '', 19, 11, 'City', 'Sweden.gif', '[EMAIL PROTECTED]',
'http://', '', 'here', '', 'jpg', 'approved', 0, 'yes',
'69f404925df883e0e5579d65b7768e7c', '20031007135005', 20031102044856, '1',
1, '2003-10-11 03:20:19', 'Stockholm', '', '', '', '', '176', '60', '2', '',
'disabled', 'disabled', 'disabled', 'disabled', 1717, 5410, '3.1508', NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, 'enabled', 'enabled', 'enabled');
--
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RE: mySQL in Hebrew
I have run the 'show variables' query on my database and see that the default character set is latin-1, and 'character_sets' includes 'hebrew'. So I tried the following command alter database presale default character set hebrew; only to be awarded with a 'you have an error in your SQL syntax' message. 'Alter table' gives the same message. I even copy and pasted the example in the online documentation, which gave me the same answer. I am using version 3.23.51 on linux. -Original Message- From: Noamn [mailto:[EMAIL PROTECTED] Sent: Friday, December 26, 2003 8:22 AM To: [EMAIL PROTECTED] Subject: mySQL in Hebrew Does anyone have any experience of working with mySQL in Hebrew? The front end to my database is written in Delphi/Windows; it transmits Hebrew characters and displays Hebrew characters. The backend is in mySQL/Linux, and what was Hebrew appears in English characters. The only problem which I have with this is that almost every table has a 'name' index, and the names aren't sorted in the correct order. I had a quick glance at the documentation regarding internationalisation and didn't completely understand it, so I am asking for help. Would it be a good idea to build a translation table, ie 'aleph' = 'a' and comes first in the sorting order? What about numbers and English names? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
