Re: How to READ/WRITE directly on MyISAM data files ?
Hi, I would like to know how to write directly to MyISAM files, without passing by SELECT or UPDATE queries. I believe this info can be found in the files myisam.h and myisammrg.h, but I am not shure if its safe and how to do it. I guess it will only be safe if you're sure you've got all bugs out, like in the MySQL engine. So the question would be: WHY? 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 READ/WRITE directly on MyISAM data files ?
Good question, I am not shure if I need to. Here's why I am asking: I have a table that does not have a primary key and I need to update only one row. This complicates my Update Query since I cannot specify a Where clause. I did had a primary key RowID (AUTO INCREMENT) to be sble to specify a row in my query. But this Field (RowID) can now be seen when I do a SELECT query. I did not find a way to hide this field. So my first question should be : Is there a way to hide a field ?? Best Regards, Stéphane. -Original Message- From: Martijn Tonies [mailto:[EMAIL PROTECTED] Sent: 11 décembre, 2003 08:22 To: MySQL (E-mail) Subject: Re: How to READ/WRITE directly on MyISAM data files ? Hi, I would like to know how to write directly to MyISAM files, without passing by SELECT or UPDATE queries. I believe this info can be found in the files myisam.h and myisammrg.h, but I am not shure if its safe and how to do it. I guess it will only be safe if you're sure you've got all bugs out, like in the MySQL engine. So the question would be: WHY? 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] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: How to READ/WRITE directly on MyISAM data files ?
[snip] So my first question should be : Is there a way to hide a field ?? [/snip] SELECT only the information you want. Let's say I have RowID Name Address City And I only want Name Address and City SELECT Name, Address, City FROM table WHERE RowID = 'foo' UPDATE table SET Name = 'foo' WHERE RowID = '12' etcetera A good book on SQL basics will get you a long way on things like this. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: How to READ/WRITE directly on MyISAM data files ?
Hi, I am not shure if I need to. Here's why I am asking: I have a table that does not have a primary key and I need to update only one row. This complicates my Update Query since I cannot specify a Where clause. Well, as you have figured out, without some kind of unique ID, it's pretty much impossible to update a row. I did had a primary key RowID (AUTO INCREMENT) to be sble to specify a row in my query. But this Field (RowID) can now be seen when I do a SELECT query. I did not find a way to hide this field. So my first question should be : Is there a way to hide a field ?? Well, that depends on how you are displaying the data, doesn't it :-) 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 READ/WRITE directly on MyISAM data files ?
Thank you, but I already know the basics of SQL SELECT statements. What I am trying to say is, if a User writes a SELECT clause, I do not want him to see the RowID field. I do not want him to write a long SELECT statement, especially if my table has 20 FIELDS or more. (Can you imagine the user writing these queries all the time). I want him to be able to write SELECT * FROM ATABLE. Thank you, Stéphane. -Original Message- From: Jay Blanchard [mailto:[EMAIL PROTECTED] Sent: 11 décembre, 2003 08:41 To: Stéphane Bischoff; Martijn Tonies; MySQL (E-mail) Subject: RE: How to READ/WRITE directly on MyISAM data files ? [snip] So my first question should be : Is there a way to hide a field ?? [/snip] SELECT only the information you want. Let's say I have RowID Name Address City And I only want Name Address and City SELECT Name, Address, City FROM table WHERE RowID = 'foo' UPDATE table SET Name = 'foo' WHERE RowID = '12' etcetera A good book on SQL basics will get you a long way on things like this. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: How to READ/WRITE directly on MyISAM data files ?
[snip] Thank you, but I already know the basics of SQL SELECT statements. What I am trying to say is, if a User writes a SELECT clause, I do not want him to see the RowID field. I do not want him to write a long SELECT statement, especially if my table has 20 FIELDS or more. (Can you imagine the user writing these queries all the time). I want him to be able to write SELECT * FROM ATABLE. [/snip] Well, that pretty much misses the point then, doesn't it? Are your records not unique? There is no way that you can write an update statement that would perform the operation on the proper record? Can you show us a bit of the table? With more information we can help. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: How to READ/WRITE directly on MyISAM data files ?
Without a unique identifier, the only way you're gonna get to update right is to use other data in the row to identifiy the record... so with a table structure of name address state your users can select anything they want, filtering w/ a where clause. If you grant them update on the table, then they'll just have to: update your_table set name = 'Dan' where name = 'Daniel' and address = '55 main' and state = 'Virginia'; I don't agree with this approach, mind you, it breaks all kinds of best practices maybe it would help if you explained _why_ you don't want your users to see a numerical id field for each record -Original Message- From: Stéphane Bischoff [mailto:[EMAIL PROTECTED] Sent: Thursday, December 11, 2003 8:43 AM To: 'Jay Blanchard'; MySQL (E-mail) Subject: RE: How to READ/WRITE directly on MyISAM data files ? Thank you, but I already know the basics of SQL SELECT statements. What I am trying to say is, if a User writes a SELECT clause, I do not want him to see the RowID field. I do not want him to write a long SELECT statement, especially if my table has 20 FIELDS or more. (Can you imagine the user writing these queries all the time). I want him to be able to write SELECT * FROM ATABLE. Thank you, Stéphane. -Original Message- From: Jay Blanchard [mailto:[EMAIL PROTECTED] Sent: 11 décembre, 2003 08:41 To: Stéphane Bischoff; Martijn Tonies; MySQL (E-mail) Subject: RE: How to READ/WRITE directly on MyISAM data files ? [snip] So my first question should be : Is there a way to hide a field ?? [/snip] SELECT only the information you want. Let's say I have RowID Name Address City And I only want Name Address and City SELECT Name, Address, City FROM table WHERE RowID = 'foo' UPDATE table SET Name = 'foo' WHERE RowID = '12' etcetera A good book on SQL basics will get you a long way on things like this. -- 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 READ/WRITE directly on MyISAM data files ?
Hello, Here's an example : I have a table named Product. TABLE : PRODUCT +-+-+-+-+-+ |RowID| Name| Company| Price | Warranty | | | | | | | +-+-+-+-+-+ | 1 | PC 1000 | MyCom Inc. | 1000.00| 1 year| | 2 | PC 1000 | MyCom Inc. | 1200.00| 2 year| | 3 | PC 1000 | MyCom Inc. | 1300.00| 3 year| | 4 | PC 2000 | MyCom Inc. | 1200.00| 1 year| | 4 | PC 2000 | MyCom Inc. | 1300.00| 2 year| | 4 | PC 2000 | MyCom Inc. | 1400.00| 3 year| | 4 | PC 3000 | MyCom Inc. | 1500.00| 1 year| | 4 | PC 3000 | MyCom Inc. | 1600.00| 2 year| | 4 | PC 3000 | MyCom Inc. | 1700.00| 3 year| | 4 | PC AR3| SPCom Inc. | 1200.00| 2 year| | 4 | PC AR3| SPCom Inc. | 1300.00| 3 year| | 4 | PC AR4| SPCom Inc. | 1400.00| 4 year| +-+-+-+-+-+ From My Server Side Application (C code) I can Update my Rows using my RowID. Example : UPDATE TABLE product SET Price=2000.00 WHERE RowID=3; But For My Client Side Applications : User logs in my Client app. User types in SELECT * FROM product. User does NOT WANT TO SEE RowID numbers. User wants to see this output : +-+-+-+-+ | Name| Company| Price | Warranty | | | | | | +-+-+-+-+ | PC 1000 | MyCom Inc. | 1000.00| 1 year| | PC 1000 | MyCom Inc. | 1200.00| 2 year| | PC 1000 | MyCom Inc. | 1300.00| 3 year| | PC 2000 | MyCom Inc. | 1200.00| 1 year| | PC 2000 | MyCom Inc. | 1300.00| 2 year| | PC 2000 | MyCom Inc. | 1400.00| 3 year| | PC 3000 | MyCom Inc. | 1500.00| 1 year| | PC 3000 | MyCom Inc. | 1600.00| 2 year| | PC 3000 | MyCom Inc. | 1700.00| 3 year| | PC AR3| SPCom Inc. | 1200.00| 2 year| | PC AR3| SPCom Inc. | 1300.00| 3 year| | PC AR4| SPCom Inc. | 1400.00| 4 year| +-+-+-+-+ I know there are ways to bypass this problem, but it involves much more coding in my Delphi applications on my Client side. So my question is, Is there a way to hide a field from select statements. Of course, if my user wrote SELECT RowId, Name, Company, Price, Warranty FROM product he would get the RowId in his query output. Best Regards, Stéphane. -Original Message- From: Jay Blanchard [mailto:[EMAIL PROTECTED] Sent: 11 décembre, 2003 08:49 To: Stéphane Bischoff; MySQL (E-mail) Subject: RE: How to READ/WRITE directly on MyISAM data files ? [snip] Thank you, but I already know the basics of SQL SELECT statements. What I am trying to say is, if a User writes a SELECT clause, I do not want him to see the RowID field. I do not want him to write a long SELECT statement, especially if my table has 20 FIELDS or more. (Can you imagine the user writing these queries all the time). I want him to be able to write SELECT * FROM ATABLE. [/snip] Well, that pretty much misses the point then, doesn't it? Are your records not unique? There is no way that you can write an update statement that would perform the operation on the proper record? Can you show us a bit of the table? With more information we can help. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: How to READ/WRITE directly on MyISAM data files ?
Hi Stéphane, Here's an example : I have a table named Product. TABLE : PRODUCT +-+-+-+-+-+ |RowID | Name| Company| Price | Warranty | | | | | | | +-+-+-+-+-+ | 1 | PC 1000 | MyCom Inc. | 1000.00| 1 year| | 2 | PC 1000 | MyCom Inc. | 1200.00| 2 year| | 3 | PC 1000 | MyCom Inc. | 1300.00| 3 year| | 4 | PC 2000 | MyCom Inc. | 1200.00| 1 year| | 4 | PC 2000 | MyCom Inc. | 1300.00| 2 year| | 4 | PC 2000 | MyCom Inc. | 1400.00| 3 year| | 4 | PC 3000 | MyCom Inc. | 1500.00| 1 year| | 4 | PC 3000 | MyCom Inc. | 1600.00| 2 year| | 4 | PC 3000 | MyCom Inc. | 1700.00| 3 year| | 4 | PC AR3| SPCom Inc. | 1200.00| 2 year| | 4 | PC AR3| SPCom Inc. | 1300.00| 3 year| | 4 | PC AR4| SPCom Inc. | 1400.00| 4 year| +-+-+-+-+-+ From My Server Side Application (C code) I can Update my Rows using my RowID. Example : UPDATE TABLE product SET Price=2000.00 WHERE RowID=3; But For My Client Side Applications : User logs in my Client app. User types in SELECT * FROM product. Why?? In what application do you allow users to construct their own SQL statement and run UPDATE SQL statements? I never do that and I see no reason why I should. User does NOT WANT TO SEE RowID numbers. Why not? User wants to see this output : +-+-+-+-+ | Name| Company| Price | Warranty | | | | | | +-+-+-+-+ | PC 1000 | MyCom Inc. | 1000.00| 1 year| --8-- | PC AR4| SPCom Inc. | 1400.00| 4 year| +-+-+-+-+ I know there are ways to bypass this problem, but it involves much more coding in my Delphi applications on my Client side. You can do this in the after open event, I think. So my question is, Is there a way to hide a field from select statements. Of course, if my user wrote SELECT RowId, Name, Company, Price, Warranty FROM product he would get the RowId in his query output. How do you expect your users to update rows without an unique ID? 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 READ/WRITE directly on MyISAM data files ?
[snip] | 4 | PC AR3| SPCom Inc. | 1200.00| 2 year| | 4 | PC AR3| SPCom Inc. | 1300.00| 3 year| | 4 | PC AR4| SPCom Inc. | 1400.00| 4 year| +-+-+-+-+-+ From My Server Side Application (C code) I can Update my Rows using my RowID. Example : UPDATE TABLE product SET Price=2000.00 WHERE RowID=3; [/snip] Yes, but if you use RowID 4 you'll be updating multiple rows [snip] But For My Client Side Applications : I know there are ways to bypass this problem, but it involves much more coding in my Delphi applications on my Client side. [/snip] So? [snip] So my question is, Is there a way to hide a field from select statements. Of course, if my user wrote SELECT RowId, Name, Company, Price, Warranty FROM product he would get the RowId in his query output. [/snip] Does the user know all of the columns? If so, and he chose to see them that would be his choice, no? Really, it is just bad database design. Each row should have a unique identifier. What is the big deal about the user seeing the RowID? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: How to READ/WRITE directly on MyISAM data files ?
Just wanted to know if it was possible to hide fields for whatever reason. Judging by your response, the answer is no. Therefore, I will look at other alternatives. Thanks, -Original Message- From: Jay Blanchard [mailto:[EMAIL PROTECTED] Sent: 11 décembre, 2003 09:09 To: Stéphane Bischoff; MySQL (E-mail) Subject: RE: How to READ/WRITE directly on MyISAM data files ? [snip] | 4 | PC AR3| SPCom Inc. | 1200.00| 2 year| | 4 | PC AR3| SPCom Inc. | 1300.00| 3 year| | 4 | PC AR4| SPCom Inc. | 1400.00| 4 year| +-+-+-+-+-+ From My Server Side Application (C code) I can Update my Rows using my RowID. Example : UPDATE TABLE product SET Price=2000.00 WHERE RowID=3; [/snip] Yes, but if you use RowID 4 you'll be updating multiple rows [snip] But For My Client Side Applications : I know there are ways to bypass this problem, but it involves much more coding in my Delphi applications on my Client side. [/snip] So? [snip] So my question is, Is there a way to hide a field from select statements. Of course, if my user wrote SELECT RowId, Name, Company, Price, Warranty FROM product he would get the RowId in his query output. [/snip] Does the user know all of the columns? If so, and he chose to see them that would be his choice, no? Really, it is just bad database design. Each row should have a unique identifier. What is the big deal about the user seeing the RowID? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: How to READ/WRITE directly on MyISAM data files ?
So if I follow you, you allow your clients to execute direct sql on the database, both select and update, but _they_ simply don't want to see the row id data? If that's the case, then too bad for them if they are capable of writing sql, then they have to handle the result, or omit the field from the query. The only other option is for you to truss up your application interface, so that you give them an interface that shows just the fields _you_ want them to see. They can't have their cake and eat it too. -Original Message- From: Stéphane Bischoff [mailto:[EMAIL PROTECTED] Sent: Thursday, December 11, 2003 9:00 AM To: 'Jay Blanchard'; MySQL (E-mail) Subject: RE: How to READ/WRITE directly on MyISAM data files ? Hello, Here's an example : I have a table named Product. TABLE : PRODUCT +-+-+-+-+- + |RowID | Name| Company| Price | Warranty | | | | | | | +-+-+-+-+- + | 1 | PC 1000 | MyCom Inc. | 1000.00| 1 year| | 2 | PC 1000 | MyCom Inc. | 1200.00| 2 year| | 3 | PC 1000 | MyCom Inc. | 1300.00| 3 year| | 4 | PC 2000 | MyCom Inc. | 1200.00| 1 year| | 4 | PC 2000 | MyCom Inc. | 1300.00| 2 year| | 4 | PC 2000 | MyCom Inc. | 1400.00| 3 year| | 4 | PC 3000 | MyCom Inc. | 1500.00| 1 year| | 4 | PC 3000 | MyCom Inc. | 1600.00| 2 year| | 4 | PC 3000 | MyCom Inc. | 1700.00| 3 year| | 4 | PC AR3| SPCom Inc. | 1200.00| 2 year| | 4 | PC AR3| SPCom Inc. | 1300.00| 3 year| | 4 | PC AR4| SPCom Inc. | 1400.00| 4 year| +-+-+-+-+- + From My Server Side Application (C code) I can Update my Rows using my RowID. Example : UPDATE TABLE product SET Price=2000.00 WHERE RowID=3; But For My Client Side Applications : User logs in my Client app. User types in SELECT * FROM product. User does NOT WANT TO SEE RowID numbers. User wants to see this output : +-+-+-+-+ | Name| Company| Price | Warranty | | | | | | +-+-+-+-+ | PC 1000 | MyCom Inc. | 1000.00| 1 year| | PC 1000 | MyCom Inc. | 1200.00| 2 year| | PC 1000 | MyCom Inc. | 1300.00| 3 year| | PC 2000 | MyCom Inc. | 1200.00| 1 year| | PC 2000 | MyCom Inc. | 1300.00| 2 year| | PC 2000 | MyCom Inc. | 1400.00| 3 year| | PC 3000 | MyCom Inc. | 1500.00| 1 year| | PC 3000 | MyCom Inc. | 1600.00| 2 year| | PC 3000 | MyCom Inc. | 1700.00| 3 year| | PC AR3| SPCom Inc. | 1200.00| 2 year| | PC AR3| SPCom Inc. | 1300.00| 3 year| | PC AR4| SPCom Inc. | 1400.00| 4 year| +-+-+-+-+ I know there are ways to bypass this problem, but it involves much more coding in my Delphi applications on my Client side. So my question is, Is there a way to hide a field from select statements. Of course, if my user wrote SELECT RowId, Name, Company, Price, Warranty FROM product he would get the RowId in his query output. Best Regards, Stéphane. -Original Message- From: Jay Blanchard [mailto:[EMAIL PROTECTED] Sent: 11 décembre, 2003 08:49 To: Stéphane Bischoff; MySQL (E-mail) Subject: RE: How to READ/WRITE directly on MyISAM data files ? [snip] Thank you, but I already know the basics of SQL SELECT statements. What I am trying to say is, if a User writes a SELECT clause, I do not want him to see the RowID field. I do not want him to write a long SELECT statement, especially if my table has 20 FIELDS or more. (Can you imagine the user writing these queries all the time). I want him to be able to write SELECT * FROM ATABLE. [/snip] Well, that pretty much misses the point then, doesn't it? Are your records not unique? There is no way that you can write an update statement that would perform the operation on the proper record? Can you show us a bit of the table? With more information we can help. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com
RE: How to READ/WRITE directly on MyISAM data files ?
There's no way to hide a row. However, I can think of a zany solution. Update your tables using a hash of all the data in the row. That way you don't need an id field. Fair warning: this is not a GOOD solution but it does address the problem. Matt -Original Message- From: Stéphane Bischoff [mailto:[EMAIL PROTECTED] Sent: Thursday, December 11, 2003 9:00 AM To: 'Jay Blanchard'; MySQL (E-mail) Subject: RE: How to READ/WRITE directly on MyISAM data files ? Hello, Here's an example : I have a table named Product. TABLE : PRODUCT +-+-+-+-+-+ |RowID| Name| Company| Price | Warranty | | | | | | | +-+-+-+-+-+ | 1 | PC 1000 | MyCom Inc. | 1000.00| 1 year| | 2 | PC 1000 | MyCom Inc. | 1200.00| 2 year| | 3 | PC 1000 | MyCom Inc. | 1300.00| 3 year| | 4 | PC 2000 | MyCom Inc. | 1200.00| 1 year| | 4 | PC 2000 | MyCom Inc. | 1300.00| 2 year| | 4 | PC 2000 | MyCom Inc. | 1400.00| 3 year| | 4 | PC 3000 | MyCom Inc. | 1500.00| 1 year| | 4 | PC 3000 | MyCom Inc. | 1600.00| 2 year| | 4 | PC 3000 | MyCom Inc. | 1700.00| 3 year| | 4 | PC AR3| SPCom Inc. | 1200.00| 2 year| | 4 | PC AR3| SPCom Inc. | 1300.00| 3 year| | 4 | PC AR4| SPCom Inc. | 1400.00| 4 year| +-+-+-+-+-+ From My Server Side Application (C code) I can Update my Rows using my RowID. Example : UPDATE TABLE product SET Price=2000.00 WHERE RowID=3; But For My Client Side Applications : User logs in my Client app. User types in SELECT * FROM product. User does NOT WANT TO SEE RowID numbers. User wants to see this output : +-+-+-+-+ | Name| Company| Price | Warranty | | | | | | +-+-+-+-+ | PC 1000 | MyCom Inc. | 1000.00| 1 year| | PC 1000 | MyCom Inc. | 1200.00| 2 year| | PC 1000 | MyCom Inc. | 1300.00| 3 year| | PC 2000 | MyCom Inc. | 1200.00| 1 year| | PC 2000 | MyCom Inc. | 1300.00| 2 year| | PC 2000 | MyCom Inc. | 1400.00| 3 year| | PC 3000 | MyCom Inc. | 1500.00| 1 year| | PC 3000 | MyCom Inc. | 1600.00| 2 year| | PC 3000 | MyCom Inc. | 1700.00| 3 year| | PC AR3| SPCom Inc. | 1200.00| 2 year| | PC AR3| SPCom Inc. | 1300.00| 3 year| | PC AR4| SPCom Inc. | 1400.00| 4 year| +-+-+-+-+ I know there are ways to bypass this problem, but it involves much more coding in my Delphi applications on my Client side. So my question is, Is there a way to hide a field from select statements. Of course, if my user wrote SELECT RowId, Name, Company, Price, Warranty FROM product he would get the RowId in his query output. Best Regards, Stéphane. -Original Message- From: Jay Blanchard [mailto:[EMAIL PROTECTED] Sent: 11 décembre, 2003 08:49 To: Stéphane Bischoff; MySQL (E-mail) Subject: RE: How to READ/WRITE directly on MyISAM data files ? [snip] Thank you, but I already know the basics of SQL SELECT statements. What I am trying to say is, if a User writes a SELECT clause, I do not want him to see the RowID field. I do not want him to write a long SELECT statement, especially if my table has 20 FIELDS or more. (Can you imagine the user writing these queries all the time). I want him to be able to write SELECT * FROM ATABLE. [/snip] Well, that pretty much misses the point then, doesn't it? Are your records not unique? There is no way that you can write an update statement that would perform the operation on the proper record? Can you show us a bit of the table? With more information we can help. -- 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 READ/WRITE directly on MyISAM data files ?
Hello Stephane, I use myisam for reading. I now use SQL for updating. When I used myisam for updating, tables sometimes corrupted, and I was unable to work out why. Currently I am changing programs to use HANDLER syntax not myisam for reading. This will: - Save the need for table locking. - Allow the use of InnoDB etc. - Allow mysqld to have full control. I recommend you just use SQL for everything. Regards, Stephen - Original Message - From: Stéphane Bischoff [EMAIL PROTECTED] To: MySQL (E-mail) [EMAIL PROTECTED] Sent: Friday, December 12, 2003 12:15 AM Subject: How to READ/WRITE directly on MyISAM data files ? Hello, I would like to know how to write directly to MyISAM files, without passing by SELECT or UPDATE queries. I believe this info can be found in the files myisam.h and myisammrg.h, but I am not shure if its safe and how to do it. I would very much like to have an example of this code (C code). thank you Stéphane. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
