mysql alter enum
Try this (you dont need to specify the size, char(1) ) : ALTER TABLE QRCodeUser ADD gender enum('M','F') NOT NULL;.,ALTER TABLE `table_name` MODIFY COLUMN `column_name2` enum( ... mysql> CREATE TABLE carmake (country ENUM('Canada', 'United States')); Query ...
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 mysql alter enum 相關參考資料
Add a new value to a column of data type enum in MySQL
Add a new value to a column of data type enum in MySQL? ... ALTER TABLE yourTableName MODIFY COLUMN yourEnumColumnName ... https://www.tutorialspoint.com Adding new enum column to an existing table - Stack Overflow
Try this (you dont need to specify the size, char(1) ) : ALTER TABLE QRCodeUser ADD gender enum('M','F') NOT NULL;. https://stackoverflow.com How do I add more members to my ENUM-type column in MySQL? - Stack ...
ALTER TABLE `table_name` MODIFY COLUMN `column_name2` enum( ... mysql> CREATE TABLE carmake (country ENUM('Canada', 'United States')); Query ... https://stackoverflow.com mysql - Is it possible to change ENUM() lists? - Database ...
As long as the table is empty, there is no problem. As long as new values for ENUM is appended and not renamed given a populated table, ... https://dba.stackexchange.com MySQL 8.0 Reference Manual :: 13.1.9 ALTER TABLE Syntax - MySQL
ALTER TABLE tbl_name [alter_specification [, alter_specification] . ..... Modifying the definition of an ENUM or SET column by adding new enumeration or set ... https://dev.mysql.com Mysql Add a new value to a column of data type enum - Stack Overflow
Unfortunately, you need to re-list all the existing enum values when adding a new value to the the enum. ALTER TABLE mytable MODIFY ... https://stackoverflow.com MySQL Change a column ENUM value - Stack Overflow
If I understand your question, you want to rename the existing enum value NEWS to FEATURED_COVERAGE . If so, you need to follow below ... https://stackoverflow.com MYSQL Change Enum Values - Stack Overflow
You cannot just remove the Old Enum values from the Column definition. Otherwise, there will be an irreparable Data loss (all fields may turn to ... https://stackoverflow.com |