Php 如何选择具有联合结果的表名?
以下是UNION的结果,但我还想知道与每行关联的源表:Php 如何选择具有联合结果的表名?,php,mysql,Php,Mysql,以下是UNION的结果,但我还想知道与每行关联的源表: SELECT City FROM Customers UNION SELECT City FROM Suppliers ORDER BY City; 查询的实际结果如下: 城市 572 123 但我希望得到这个结果: 城市平板电脑\u结果 572名客户 123供应商 好的,试试: SELECT City,'Customers' as tblName FROM Customers UNION SELECT City,'Suppliers'
SELECT City FROM Customers
UNION
SELECT City FROM Suppliers
ORDER BY City;
查询的实际结果如下:
城市572
123 但我希望得到这个结果: 城市平板电脑\u结果
572名客户
123供应商 好的,试试:
SELECT City,'Customers' as tblName FROM Customers
UNION
SELECT City,'Suppliers' as tblName FROM Suppliers
ORDER BY City;
按顺序玩游戏
也要考虑做工会。请参阅以了解区别。好的,请尝试:
SELECT City,'Customers' as tblName FROM Customers
UNION
SELECT City,'Suppliers' as tblName FROM Suppliers
ORDER BY City;
按顺序玩游戏
也要考虑做工会。请参阅以了解差异。只需将“,”from_where'”作为第2列添加到每一列,您是否可以解释更多重复内容?只需将“,”from_where'”作为第2列添加到每一列,您是否可以解释更多重复内容