mysql drop primary key
You can use. ALTER TABLE `table` MODIFY `id` INT ; ALTER TABLE `table` DROP PRIMARY KEY;., Alter for autoincrement. ALTER TABLE ts_template_size MODIFY id INT NULL;. Drop ALTER TABLE ts_template_size DROP PRIMARY KEY;.
| 相關軟體 MySQL 資訊 | |
|---|---|
 mysql drop primary key 相關參考資料
How can we remove PRIMARY KEY constraint from a column ...
We can remove PRIMARY KEY constraint from a column of an existing ... mysql> alter table Player DROP PRIMARY KEY; Query OK, 0 rows ... https://www.tutorialspoint.com how to remove key constraint of column in mysql? - Stack Overflow
You can use. ALTER TABLE `table` MODIFY `id` INT ; ALTER TABLE `table` DROP PRIMARY KEY;. https://stackoverflow.com Mysql drop primary key doesn't work - Stack Overflow
Alter for autoincrement. ALTER TABLE ts_template_size MODIFY id INT NULL;. Drop ALTER TABLE ts_template_size DROP PRIMARY KEY;. https://stackoverflow.com MySQL Drop Primary Key from a MySQL Database Table via ...
The RazorSQL alter table tool includes a Drop Primary Key option for dropping a primary key from a MySQL database table. The drop primary key function ... https://razorsql.com MySQL 新增、移除Primay Key 語法| Tsung's Blog
MySQL 使用ALTER Table 的語法蠻直覺的，如下： ALTER TABLE ... ALTER TABLE table_name DROP PRIMARY KEY, ADD PRIMARY KEY ... https://blog.longwin.com.tw MySQL: Primary Keys - TechOnTheNet
The syntax to drop a primary key in MySQL is: ALTER TABLE table_name DROP PRIMARY KEY; table_name. The name of the table to modify. https://www.techonthenet.com Remove Primary Key in MySQL - Stack Overflow
You can drop the primary key, or not drop the primary key. If you want a primary key that only includes one column, you can drop the existing primary key on 3 columns and create a new primary key on ... https://stackoverflow.com SQL PRIMARY KEY Constraint - W3Schools
The PRIMARY KEY constraint uniquely identifies each record in a table. ... MySQL: ALTER TABLE Persons DROP PRIMARY KEY;. SQL Server / Oracle / MS ... https://www.w3schools.com Unable to drop primary key in mysql database - Stack Overflow
If the primary key is referenced by one or more foreign keys in other tables, than you need to drop those before you can drop the primary key. https://stackoverflow.com |