How do I return more than one row in a subquery?

How do I return more than one row in a subquery?

Single-row subqueries are subqueries used with a comparison operator in a WHERE, or HAVING clause. Subqueries that can return more than one row (but only one column) to the outer statement are called multiple-row subqueries. Multiple-row subqueries are subqueries used with an IN, ANY, or ALL clause.

How do I return more than one row in SQL?

Multiple row subquery returns one or more rows to the outer SQL statement. You may use the IN, ANY, or ALL operator in outer query to handle a subquery that returns multiple rows. Contents: Using IN operator with a Multiple Row Subquery.

How do you resolve subquery returned more than one value?

Fix the subquery such that it only returns one record. Add a top 1 and order by to the subquery (nasty solution that DBAs hate – but it “works”) Use a user defined function to concatenate the results of the subquery into a single string.

Is one which returns only one row to main query?

Single Row Sub Query Although this query type is formally called “single-row,” the name implies that the query returns multiple columns-but only one row of results. However, a single-row subquery can return only one row of results consisting of only one column to the outer query.

How do I store multiple values in one variable in SQL?

@cdistler​ SQL variable is to store a single value. So if you want to store multiple value, then you will need to define multiple variables. For example, set (var1, var2, var3)=(10, 20, 30);

Can a subquery return more than one row?

A row subquery is a subquery variant that returns one or more rows and can thus return more than one column value. When the subquery returns one or more rows of values, the subquery is only evaluated once and then the row (s) of values is returned to outer query to use. Row subquery is MySQL specific.

How to return more than one row of values?

Using subquery to return one ore more rows of values A subquery that returns one or more rows of values is also known as row subquery. A row subquery is a subquery variant that returns one or more rows and can thus return more than one column value.

Why does Ora 01427 return more than one row?

ORA-01427: single-row subquery returns more than one row This is because the subquery in the SELECT statement returned more than one row for the predicate department_id, which does not comply with a singular value limited operator, the equal =. Consequently, the statement fails to continue and then throw ORA-01427 to notify developers.