DROP列
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如何实现MySQL中DROP列的数据类型转换?
MySQL中的数据类型转换可以使用CAST()或CONVERT()函数。将字符串转换为整数:,,“sql,SELECT CAST(‘123’ AS UNSIGNED) AS result;,SELECT CONVERT(‘123’, UNSIGNED) AS result;,“
MySQL中的数据类型转换可以使用CAST()或CONVERT()函数。将字符串转换为整数:,,“sql,SELECT CAST(‘123’ AS UNSIGNED) AS result;,SELECT CONVERT(‘123’, UNSIGNED) AS result;,“