修改什么属性?
tryingALTER TABLE tbl_name MODIFY [COLUMN] col_declaration
或者
ALTER TABLE tbl_name CHANGE [COLUMN] col_name col_declaration
tryingALTER TABLE tbl_name MODIFY [COLUMN] col_declaration
或者
ALTER TABLE tbl_name CHANGE [COLUMN] col_name col_declaration
解决方案 »
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