如下:一张订单表多个字段关联用户表: 1.链表查询 SELECT cu.id AS 'id',cu.version AS 'version',cu.cid AS 'cid',cu.uid AS 'uid',cu.shopName AS 'shopName',cu.address ...
SELECT vtiger orderitem.orderid, SELECT vtiger users.last name FROM vtiger users WHERE vtiger orderitem.signatory vtiger users.id AS signatory, SELECT vtiger users.last name FROM vtiger users WHERE v ...
2018-04-26 13:25 0 4801 推荐指数:
如下:一张订单表多个字段关联用户表: 1.链表查询 SELECT cu.id AS 'id',cu.version AS 'version',cu.cid AS 'cid',cu.uid AS 'uid',cu.shopName AS 'shopName',cu.address ...
CREATE TABLE `User`( `Id` BIGINT AUTO_INCREMENT NOT NULL, `Name` VARCHAR(10) NULL, `Phone` VAR ...
接着之前写的一篇文https://www.cnblogs.com/lingyejun/p/11915413.html 做什么事情 更新book_borrow表,设置其中的student_name为student表中的name,关联条件为book_borrow.student_id ...
有时候给了一个白名单,需要导入到白名单表 可使用如下方式导入 ...
SQL如下 select count(*) from information_schema.COLUMNS where TABLE_SCHEMA='数据库名' and table_name='表名' ...
TableA Aid A1 A2 A3 1 ABCD 11 aa 2 ...
update t1 set t1.BPTProductId=t2.BPTIdfrom Bas_ProductImageUrl t1join Bas_Products t2on t1.BPTBarCod ...
mysql: UPDATE member a,`chanelh5` b SET b.channel_id = a.channel_idWHERE a.pcode = b.pcode ...