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...
select from () [<sq_alias_name>]; 参数说明 select_expr:必填。格式为col1_name, col2_name, 正则表达式,...,表示待查询的普通列、分区列或正则表达式。 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...
SQL Subquery; INSERT Statement 3) Subquery can be used with INSERT statement to add rows of data from one or more tables to another table. Lets try to group all the students who study Maths in a table 'maths_group'. INSERT INTO maths_group(id, name) ...
Een subquery is een SELECT-instructie die is genest in een SELECT, SELECT... IN INVOEGEN... DE INSTRUCTIE INTO, DELETE of UPDATE of in een andere subquery. Syntaxis U kunt drie syntaxisvormen gebruiken om een subquery te maken: vergelijking[ANY | ALLE | SOME] (sqlstatement) expression...
This statement is used to nest subquery by FROM and use the subquery results as the data source of the external SELECT statement.All is used to return repeated rows. By d
A subquery is a query that is nested inside a SELECT , INSERT , UPDATE , or DELETE statement, or inside another subquery. What do you dislike about SubQuery? Some time it will take more than one min. otherwise everything is fine. Show More Helpful? Share Save this Review RM Rohit ...
Scalar subqueries are not allowed in aGROUPclause or anORDERclause (table expression). Example Scalar subquery in the list of values to be inserted in anINSERTstatement: INSERT INTO hotel.hotel VALUES((SELECT MAX(hno)+10 FROM hotel), 'Three Seasons', 90014, 'Los Angeles', '247 Broad Stree...
You can place a subquery in any of the three clauses WHERE , HAVING and FROM Types of Subquery Single Row - queries that return only a single row from the inner select statement Multiple Row - queries that return more than one row from the inner select statement ...
SELECT * FROM ace_goldfinger_actors; Result: In the above example, we first create a new table (for our data to be inserted into). We use a subquery (and a nested subquery) inside theINSERTstatement to retrieve the data that we need, then insert it into the new table. Lastly, we se...
If there are no equal right-hand values and at least one right-hand row yields null, the result of IN will be null, not false. For example: SELECT sr_reason_sk,sr_customer_sk FROM tpcds.store_returns WHERE sr_customer_sk IN (SELECT d_dom FROM tpcds.date_dim WHERE d_dom < 10)...