修改ReaderType表中的Typename数据类型为varchar(10),正确的语句是
选项:
ALTER TABLE ReaderTypeALTER COLUMN Typename varchar(10)|ALTER TABLE ReaderTypeALTER Typename varchar(10)|ALTER TABLE ReaderTypeCOLUMN Typename varchar(10)|ALTER TABLE ReaderTypeALTER TABLE COLUMN Typename varchar(10)
发布时间:2024-07-07 10:32:44