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大家好,今天本人给大家带来文章《MySQL中如何找到列名长度大于5的所有列?》,文中内容主要涉及到,如果你对数据库方面的知识点感兴趣,那就请各位朋友继续看下去吧~希望能真正帮到你们,谢谢!
使用 HAVING 查找列名长度大于 5 的所有列。这将产生以下输出 -
+-------------------+-------------------------+ | TABLE_NAME | COLUMN_NAME | +-------------------+-------------------------+ | DemoTable | UserId | | DemoTable | EndDate | | DemoTable | StartDate | | DemoTable | StudentFavouriteSubject | | DemoTable | StudentFirstName | | DemoTable | StudentId | | DemoTable | ShippingDate | | DemoTable | Number | | DemoTable | Value1 | | DemoTable | Value2 | | DemoTable | ArrivalDate | | DemoTable | ShippingDate | | DemoTable | UserAge | | DemoTable | UserId | | DemoTable | UserName | | DemoTable | CustomerId | | DemoTable | CustomerValue | | DemoTable | UserId | | DemoTable | UserMailId | | DemoTable | FirstName | | DemoTable | Number | | DemoTable | isMarried | | DemoTable | Number | | DemoTable | FruitName | | DemoTable | FruitPrice | | DemoTable | CustomerAllProductPrice | | DemoTable | CustomerId | | DemoTable | CustomerName | | DemoTable | UserId | | DemoTable | UserScore | | DemoTable | StudentAge | | DemoTable | StudentCountryName | | DemoTable | StudentFirstName | | DemoTable | StudentId | | DemoTable | StudentLastName | | DemoTable | FirstName | | DemoTable | Arrivaldatetime | | DemoTable | Amount | | DemoTable | Number | | DemoTable | Number | | DemoTable | FirstName | | DemoTable | CustomerId | | DemoTable | CustomerPrice | | DemoTable | CustomerProductName | | DemoTable | CustomerProductQuantity | | DemoTable | Value1 | | DemoTable | Value2 | | DemoTable | FirstName | | DemoTable | LastName | | DemoTable | UserId | | DemoTable | MonthNumber | | DemoTable | YearNumber | | insertcurrentdate | currentDate | | student | first_name | | student | last_name | +-------------------+-------------------------+ 55 rows in set (0.01 sec)
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