Re: Database structure DIFF
I'm not sure what you mean by "structural changes". If the the two table have the same number of columns and they are in the same order, you can do something like what I have explained below. It you included the table info from prod and test I could help you better (DESC prod;). # Create the empty shell of test (all column definitions); CREATE TABLE prod_new SELECT * FROM test WHERE 1=2; # populate prod_new with prod data INSERT INTO TABLE prod_new SELECT * FROM prod; - Verify the prod_new is correct - DROP prod - RENAME prod_new to prod. - Scott Pardon the newbie question but is there a tool available for MySQL that I can give it 2 databases and it give me the ALTER TABLE statements necessary to make 2 identical to 1? Specifically, I have a test and prod database. I've made structural changes to test and want to propagate them to prod. Is there an easy way to do this? TIA, Cal Cal http://www.calevans.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] -- -- Scott A. Gerhardt P.Geo. Gerhardt Information Technologies [EMAIL PROTECTED] -- - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
RE: Database structure DIFF
Database in Test: Table1 Table1ID myField1 varChar(20) myField2 int myFiled3 varChar(40) Database in Prod: Table1 Table1ID myField1 varChar(60) myField2 int myField3 varChar(40) myField4 int I'd like something that compares these two databases. (Either the databases themselves or a mysqldump of the databases and comes up with a sql script: Alter table Table1 add myField4 int; Alter table Table1 change myField1 myField1 varChar(60); Yes, I can do it by eyeballing it...I'm just too lazy. :) Thanks for replying. Hope I've made things clearer. Cal http://www.calevans.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Sunday, January 21, 2001 1:48 PM To: Cal Evans Cc: [EMAIL PROTECTED] Subject: Re: Database structure DIFF I'm not sure what you mean by "structural changes". If the the two table have the same number of columns and they are in the same order, you can do something like what I have explained below. It you included the table info from prod and test I could help you better (DESC prod;). # Create the empty shell of test (all column definitions); CREATE TABLE prod_new SELECT * FROM test WHERE 1=2; # populate prod_new with prod data INSERT INTO TABLE prod_new SELECT * FROM prod; - Verify the prod_new is correct - DROP prod - RENAME prod_new to prod. - Scott Pardon the newbie question but is there a tool available for MySQL that I can give it 2 databases and it give me the ALTER TABLE statements necessary to make 2 identical to 1? Specifically, I have a test and prod database. I've made structural changes to test and want to propagate them to prod. Is there an easy way to do this? TIA, Cal Cal http://www.calevans.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] -- -- Scott A. Gerhardt P.Geo. Gerhardt Information Technologies [EMAIL PROTECTED] -- - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
RE: Database structure DIFF
Hello Cal, I don't think there is a "magic bullet" for what you want. Although I'm sure some sort of Perl script could do a comparison and create the proper ALTER TABLE SQL to make the two tables equal. I usualy just copy tables using the CREATE TABLE syntax (as below) and make the manual alterations as needed. Regards, - Scott Database in Test: Table1 Table1ID myField1 varChar(20) myField2 int myFiled3 varChar(40) Database in Prod: Table1 Table1ID myField1 varChar(60) myField2 int myField3 varChar(40) myField4 int I'd like something that compares these two databases. (Either the databases themselves or a mysqldump of the databases and comes up with a sql script: Alter table Table1 add myField4 int; Alter table Table1 change myField1 myField1 varChar(60); Yes, I can do it by eyeballing it...I'm just too lazy. :) Thanks for replying. Hope I've made things clearer. Cal http://www.calevans.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Sunday, January 21, 2001 1:48 PM To: Cal Evans Cc: [EMAIL PROTECTED] Subject: Re: Database structure DIFF I'm not sure what you mean by "structural changes". If the the two table have the same number of columns and they are in the same order, you can do something like what I have explained below. It you included the table info from prod and test I could help you better (DESC prod;). # Create the empty shell of test (all column definitions); CREATE TABLE prod_new SELECT * FROM test WHERE 1=2; # populate prod_new with prod data INSERT INTO TABLE prod_new SELECT * FROM prod; - Verify the prod_new is correct - DROP prod - RENAME prod_new to prod. - Scott Pardon the newbie question but is there a tool available for MySQL that I can give it 2 databases and it give me the ALTER TABLE statements necessary to make 2 identical to 1? Specifically, I have a test and prod database. I've made structural changes to test and want to propagate them to prod. Is there an easy way to do this? TIA, Cal Cal http://www.calevans.com - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] -- -- Scott A. Gerhardt P.Geo. Gerhardt Information Technologies [EMAIL PROTECTED] -- - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- -- Scott A. Gerhardt P.Geo. Gerhardt Information Technologies [EMAIL PROTECTED] -- - Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail [EMAIL PROTECTED] To unsubscribe, e-mail [EMAIL PROTECTED] Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
