mysql alter table auto_increment
ALTER TABLE document MODIFY COLUMN document_id INT auto_increment ..., I was confused with CHANGE and MODIFY keywords before too: ALTER TABLE ALLITEMS CHANGE itemid itemid INT(10)AUTO_INCREMENT PRIMARY KEY; ALTER TABLE ALLITEMS MODIFY itemid INT(5);. While we are there, also note that AUTO_INCREMENT can also start with a pr
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sql - ALTER table - adding AUTOINCREMENT in MySQL - Stack Overflow
I was confused with CHANGE and MODIFY keywords before too: ALTER TABLE ALLITEMS CHANGE itemid itemid INT(10)AUTO_INCREMENT PRIMARY KEY; ALTER TABLE ALLITEMS MODIFY itemid INT(5);. While we are there,... https://stackoverflow.com sql - Mysql - Alter a column to be AUTO_INCREMENT - Stack Overflow
ALTER TABLE document MODIFY COLUMN document_id INT auto_increment ... https://stackoverflow.com sql - ALTER table - adding AUTOINCREMENT in MySQL - Stack ...
I was confused with CHANGE and MODIFY keywords before too: ALTER TABLE ALLITEMS CHANGE itemid itemid INT(10)AUTO_INCREMENT PRIMARY KEY; ALTER TABLE ALLITEMS MODIFY itemid INT(5);. While we are there,... https://stackoverflow.com mysql - Change auto increment starting number? - Stack Overflow
Yes, you can use the ALTER TABLE t AUTO_INCREMENT = 42 statement. However, you need to be aware that this will cause the rebuilding of your entire table, at least with InnoDB and certain MySQL versio... https://stackoverflow.com sql - How to reset AUTO_INCREMENT in MySQL? - Stack Overflow
For MyISAM, if the value is less than or equal to the maximum value currently in the AUTO_INCREMENT column, the value is reset to the current maximum plus one. For InnoDB, you can use ALTER TABLE ...... https://stackoverflow.com primary key - make an ID in a mysql table auto_increment (after ...
For example, here's a table that has a primary key but is not AUTO_INCREMENT : mysql> CREATE TABLE foo ( id INT NOT NULL, PRIMARY KEY (id) ); mysql> INSERT INTO foo VALUES (1), (2), (5);. Y... https://stackoverflow.com mysql - Add Auto-Increment ID to existing table? - Stack Overflow
drop auto_increment capability alter table `users` modify column id INT NOT NULL; -- in one line, drop primary key and rebuild one alter table `users` drop primary key, add primary key(id); -- re add... https://stackoverflow.com mysql - Insert auto increment primary key to existing table ...
An ALTER TABLE statement adding the PRIMARY KEY column works correctly in my testing: ALTER TABLE tbl ADD id INT PRIMARY KEY AUTO_INCREMENT;. On a temporary table created for testing purposes, the ab... https://stackoverflow.com MySQL 5.7 Reference Manual :: 13.1.8.4 ALTER TABLE Examples
We indexed c (as a PRIMARY KEY ) because AUTO_INCREMENT columns must be indexed, and we declare c as NOT NULL because primary key columns cannot be NULL . For NDB tables, it is also possible to chang... https://dev.mysql.com |