Re: sequences and auto_increment
I had a similar problem a while ago and I got round it by using a trigger - called a function on an insert to read a value from a table (use for update when selecting) update with incremented value then use the return value from the ffunction to set the new value - you can do all your login or your primary key in it. Not at a machine where I have the code handy and not sure if mysql has implemented an autonomous pragma for this kind of thing yet but select for update should deal with things as long as you keep the function tight Ken Luca Ferrari wrote: On Tuesday 02 January 2007 16:51 Brent Baisley's cat, walking on the keyboard, wrote: CREATE TABLE competenza ( competenza varchar(30) NOT NULL default 'comp-06-', id_competenza int unsigned not null auto_increment, descrizione varchar(100), PRIMARY KEY (competenza, id_competenza) ) Since your PRIMARY KEY is a combination of 2 fields (competenza + id_competenza ), each competenza value will have it's own auto increment (id_competenza ) sequence. So id_competenza won't be unique, but the combination of competenza + id_competenza will be. Thanks for your suggestion, but this would make my queries more complex, since to get the id of a skill (italian is competenza) will require querying two fields. It's true that I can simulate sequences with a table with auto_increment, but this means I need to insert a record before in such table to get the new id and then insert in my competenza table. This would require a transaction and will result even more complex than the above, I guess. Any other idea? Thanks, Luca -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Newbie: Rewriting A Query- How?
Anyone any idea how I could rewrite this as a join - all the indexes are in place and each of the components of this work fine - its only when the combined subqueries are passed to the root query does it appear to go wrong (Takes around 1.5 mins to complete and causes 100% processor utilisation while executing). (May be something for the developers to look at). But in the meantime I need to get this going SELECT PROJID,PROJECTNAME FROM S_PROJECTREGISTER WHERE SNAPSHOTID = 56 AND PROJID IN ( SELECT PROJID FROM SL_PROGPROJ WHERE SNAPSHOTID = 56 AND PROGID IN ( SELECT PROGID FROM SL_PORTPROG WHERE SNAPSHOTID = 56 AND PORTID IN(100994,100996) ) ) AND PROJECTSTATUS 'Potential' Ken mailto:[EMAIL PROTECTED]
RE: MySql and Oracle Forms 6i
Yip I kinda figured that and tend to code that way anyhow But There is OCA which does work with a number of other database it's just there isn't a ready built MySql setup. I'll try converting one of the others to run Thanks anyhow Ken -Original Message- From: David Griffiths [mailto:[EMAIL PROTECTED] Sent: 02 February 2004 23:42 To: Ken Brown; [EMAIL PROTECTED] Subject: Re: MySql and Oracle Forms 6i Someone posted an answer: Oh wow... I can't think of how you'd get that to work without a ton of custom. For starters, you'll have to write your own transactional triggers and intercept every one of Oracle's select, lock, update, insert, delete, like On-Lock, On-Insert, etc. since Forms will want things like rowids. You'll also have to write your own on-Login. Mike Oracle and MySQL differ in date handling, functions, triggers/stored prodedures (or lack of), outer-join syntax, and a hundred other ways that would make Forms incompatible with MySQL. Not to mention the fact that Forms probably uses SQL*Net and a TNSNames.ora entry. David. - Original Message - From: Ken Brown [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, February 02, 2004 3:11 PM Subject: MySql and Oracle Forms 6i Is there any way of using MySql as a back end to Oracle Forms? Ken Desperately trying to justify not going back to oracle db Brown Mail was checked for spam by the Freeware Edition of No Spam Today! The Freeware Edition is free for personal and non-commercial use. You can remove this notice by purchasing a full license! To order or to find out more please visit: http://www.no-spam-today.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
MySql and Oracle Forms 6i
Is there any way of using MySql as a back end to Oracle Forms? Ken Desperately trying to justify not going back to oracle db Brown
Passwords and ODBC - what am I missing
Just installed 4.1.1 on windows 2000 with current odbc layer Connects fine with root and no password But if I set a password on root or create a user with a password odbc fails with Client does not support authentication protocol requested by the server - consider upgrading MYSql Client So what have I done wrong? Ken
RE: Passwords and ODBC - what am I missing
I've did some more checking - I cannot set passwords anywhere (that is if I want to connect with the account) There are no logs as to why its not working. I can only presume 4.1.1 is in the middle of a security overhaul and that's why its now working here but perhaps someone could advise otherwise - or at the very least how to switch on a security log Ken -Original Message- From: Ken Brown [mailto:[EMAIL PROTECTED] Sent: 31 January 2004 15:56 To: '[EMAIL PROTECTED]'; '[EMAIL PROTECTED]' Subject: Passwords and ODBC - what am I missing Just installed 4.1.1 on windows 2000 with current odbc layer Connects fine with root and no password But if I set a password on root or create a user with a password odbc fails with Client does not support authentication protocol requested by the server - consider upgrading MYSql Client So what have I done wrong? Ken -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
How do I - upgrade client libraries to 4.1.1 on Windows?
I need to do this to get round password issues as -old-passwords doesn't work Anyone any ideas? Kwn
Oracle Question
Anyone managed to get oracle forms 6i to talk to MySQL - if so how? I've got ODBC working but it will not connect and the ODBC trace is less than useful Ken
RE: Passwords and ODBC - what am I missing
Got it thanks - set-variable=old-passwords=1 in the ini file -Original Message- From: Randy Chrismon [mailto:[EMAIL PROTECTED] Sent: 31 January 2004 21:11 To: '[EMAIL PROTECTED]' Cc: '[EMAIL PROTECTED]' Subject: Re: Passwords and ODBC - what am I missing Oh, and one other thing, you have to create the passwords AFTER you use the switch! That was probably obvious to you but it took me a while to figure out. Randy Randy Chrismon wrote: Ken Brown wrote: Just installed 4.1.1 on windows 2000 with current odbc layer Connects fine with root and no password But if I set a password on root or create a user with a password odbc fails with Client does not support authentication protocol requested by the server - consider upgrading MYSql Client So what have I done wrong? Ken Ken: You will have to look up the exact switch in the MySQL manual but the problem is that the OBDC driver is sending the old style password hash to MySQL 4.1.1 which is expecting the new -- longer -- password hash. You can easily find the switch by searching the MySQL documentation at their site. Randy -- MySQL ODBC Mailing List For list archives: http://lists.mysql.com/myodbc To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] Mail was checked for spam by the Freeware Edition of No Spam Today! The Freeware Edition is free for personal and non-commercial use. You can remove this notice by purchasing a full license! To order or to find out more please visit: http://www.no-spam-today.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Newbie - from Oracle
Oracle has Dual does MySql have something similar? In Oracle I use SYSDATE and USER a lot as default column values when creating a table. Can you do something similar in MySql and how? Does MySql support sequences? How? Relationships - can the code be interfered with or do I have to wait for triggers? Thanks Ken
