How do you fix error subquery returns more than one row?

How do you fix error subquery returns more than one row?

select * from table where id= (multiple row query); Where multiple row query returns multiple rows. So if the values from those rows are 1,2,3 then I want to set id to be 1 or 2 or 3.

What happens when subquery returns more than 1 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.

Why can’t subquery return multiple rows?

The cause of the error is a subquery returning more than one row of information. This error in multi-row returns on the subquery originates from an outer query failing to use appropriate, designated keywords to specify values for comparison in the subquery.

How do you handle ORA-01427 single row subquery returns more than one row?

Dmytro offered this advice to resolve ORA-01427: Try to add and rownum=1 to your subquery conditions if you DO NOT care about the value from the list or DO sure that they are the same. A single row subquery returns only one row. It can be used with the equal comparison operators (=,<,>,<>, etc).

Can subquery return multiple columns?

SQL: Multiple Column Subqueries You can write subqueries that return multiple columns. The following example retrieves the order amount with the lowest price, group by agent code.

What operator is used to prevent the error ORA-01427 single row subquery returns more than one row?

IN operator is used to prevent the error: ‘ORA-01427:single row sub query returns more than one row’. IN operator is used to specify which values to compare or reword the query so only one row is retrieved.

What operator would you choose to prevent this Oracle error message ORA-01427 single row subquery returns more than one row?

Then what operator is used to prevent ORA-01427 in SELECT statement? In practice, SELECT should use IN operator instead of = (equal operator) in order to accommodate more than one row returned by the subquery.

How to resolve subquery returns more than one row?

Message = “Subquery returns more than 1 row”. This error is caused by the subquery that must return at most one row but returns multiple rows eventually. mysql> select * from items where id = (select item_id from orders); If the subquery returns just one row, the above query will work without errors.

Why does select statement return more than one row?

For example: 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.

How to select more than one row in MySQL?

SELECT o.orderDate, o.status, (SELECT SUM (od.quantityOrdered * od.priceEach) FROM orderdetails ol WHERE od.orderNumber = o.orderNumber ) as Prices FROM orders o; This is called a correlated subquery. Note the WHERE clause instead of the GROUP BY.

Why is MySQL update statement returning more than one row?

Your inner query (select (0.1*total_salary) “Bonus” from salary_paid is returning more than one value and so can’t be assigned to bounus column. You query was updating all the rows in the table with the result of the sub-query. Also, the sub-query was returning more than one rows.