SELECTDEPTNO, DEPTNAME, (SELECTFIRSTNMECONCAT' 'CONCATMIDINITCONCAT' 'CONCATLASTNAMEFROMEMPLOYEE XWHEREX.EMPNO = Y.MGRNO) AS MANAGER_NAMEFROMDEPARTMENT YWHEREMGRNOIS NOT NULL For each row returned for DEPTNO and DEPTNAME, the system finds where EMPNO = MGRNO and returns the manager's name....
select_statement:必填。子查询语句。格式请参见SELECT语法。 sq_alias_name:可选。子查询的别名。 table_name:必填。目标表名称。 使用示例 示例1:子查询语法的命令示例如下。 set odps.sql.allow.fullscan=true; select * from (select shop_name from sale_detail) a; 返回结果如下: +---+ | shop_name...
[NIET] EXISTS (sqlstatement) Een subquery bestaat uit deze onderdelen: Opmerkingen U kunt een subquery gebruiken in plaats van een expressie in de lijst met velden van een SELECT-instructie of in een WHERE- of HAVING-component. In een subquery gebruikt u een SELECT-instructie om een set v...
This is the complete query I am using below. Hbm_Matter will only 1 have unique record(matter_uno). How do I get multiple records returned in my query when there are 2 records in the subquery? select matter_uno, matter_name, bill_empl_uno from hbm_matter a where exists ( select top...
Description: MySQL return wrong results for query with subquery in select part. How to repeat: Load dump into database and launch following statement: select USR.id, ( select COUNT(*) from projects P where P.user_id = USR.id and P.status <> 0 and P.deleted = 0 and DATE(P.date) ...
in => = any(...) i > all() => not(i <= any(...)) some => any 子查询几乎可以出现在 SQL 的任何位置,如 from/where/select/group by/having/order by, 外加关联子查询的存在,所以处理子查询变得具有挑战性,在深入子查询之前,先介绍一下 Databend 为了高效处理子查询 而引入的非标准 join ...
A subquery is a query that is nested inside a SELECT, INSERT, UPDATE, or DELETE statement, or inside another subquery. A subquery can be used anywhere an expression is allowed. In this example a subquery is used as a column expression named MaxUnitPrice in a SELECT statement. ...
sql_cond - subquery Syntax ... ( SELECT{select_clause FROMsource} |{FROMsource FIELDSselect_clause} [WHEREsql_cond] [GROUP BYgroup][HAVINGgroup_cond] [UNION[ALL|DISTINCT]select]) ... Effect Asubqueryof theWHEREcondition is a parenthesizedSELECTstatement in which all additions exceptSINGLE,...
where A.ID not in (SelectTop(30)AkteID from RW_RECH) " gives me a result which I expect. Is there any way to make the first SQL command work correctly? I get an empty result. This isnot expectedand thereforeincorrect. schumifrick, the empty resultis expectedand ther...
You can write a subquery in an expression or in a Structured Query Language (SQL) statement in SQL view. In this article Use the results of a query as a field in another query Use a subquery as a criterion for a query field Common SQL keywords tha...