多行子查询(Multi-Row Subquery)是指一个子查询返回多行结果的查询。子查询是嵌套在主查询中的查询,可以作为主查询的一部分,用于返回需要的数据结果。 多行子查询可以在比较运算符(如IN、ANY、SOME)或存在性运算符(如EXISTS)中使用,用于判断主查询的条件是否与子查询的结果匹配。多行子查询可以返回多个值,并且可...
Hello Folks, I have an issue to use Multi-Valued Subqueries in my select statement. I want to assign a value for each row but it obviously rejects it because my subquery returns multiple values. It failed to run with this error: Subquery returned more…
【MyBatis-4】MyBatis批量insert、update、delete数据问题归纳起来就是：在MySQL里面update一条记录，语法...
A scalar subquery is an inner SELECT statement within an outer query, written to return a single value. Scalar subqueries might be used anywhere in an outer T-SQL statement where a single-valued expression is permitted—such as in a SELECT clause, a WHERE clause, a HAVING clause, or eve...
Bug #49552 sql_buffer_result cause crash + not found records in multitable delete/subquery Submitted: 9 Dec 2009 9:52Modified: 7 Jul 2010 19:21 Reporter: Shane Bester (Platinum Quality Contributor) Email Updates: Status: Closed Impact on me: None Category: MySQL Server: DMLSeverity: S1...
BaseMultiTableInnerInterceptor是MyBatis-Plus中的一个抽象类,位于mybatis-plus-jsqlparser-4.9模块中com.baomidou.mybatisplus.extension.plugins.inner包下,提供解析和重写SQL功能,MyBatis-Plus的数据权限(TenantLineInnerInterceptor)插件和多租户(DataPermissionInterceptor)插件均继承了BaseMultiTableInnerInterceptor类来实现...
This trigger also works correctly in a single-row insert; the sum of the LineTotal value column is the sum of a single row. However, with this trigger the correlated subquery and the IN operator that is used in the WHERE clause require additional processing from SQL Server. This is unneces...
Bug #13236 Multi-table update with subquery causes SQL thread to hold table lock Submitted: 15 Sep 2005 18:56Modified: 14 Oct 2005 13:37 Reporter: Dean Ellis Email Updates: Status: Closed Impact on me: None Category: MySQL ServerSeverity: S1 (Critical) Version: 4.1OS: Assigned to: ...
xxx could not be boundThe "outer" query in your Dapper code can only refer to the subquery ...
In each row produced by the subquery, the value in source_col_name must be compatible with the data type of the corresponding target_col_name. This rule applies even to rows that would be filtered out by the condition in the WHEN clause. The order of operations does not guarantee that th...