Alter table更改列类型mysql

代码示例

alter table添加列

ALTER TABLE table
ADD COLUMN column VARCHAR (255) NOT NULL AFTER column;

sql server alter列

ALTER TABLE table_name 
ALTER COLUMN column_name new_data_type(size);

alter table column将数据类型更改为text mysql

ALTER TABLE tablename MODIFY columnname INTEGER;

如何在mysql中更改表列名

ALTER TABLE your_table_name RENAME COLUMN original_column_name TO new_column_name;

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带有示例的类似页面

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empty row

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