SQL SOME Operator

SOME Operator

SOME compare a value to each value in a list or results from a query and evaluate to true if the result of an inner query contains at least one row. SOME must match at least one row in the subquery and must be preceded by comparison operators. Suppose using greater than ( >) with SOME means greater than at least one value.

Syntax:

SELECT [column_name... | expression1 ]
FROM [table_name]
WHERE expression2 comparison_operator {ALL | ANY | SOME} ( subquery )

Parameters:

Pictorical Presentation: SQL SOME Operator

DBMS Support: SOME Operator

Example: SQL SOME Operator

To get 'agent_code', 'agent_name', 'working_area', 'commission' from 'agents' table with following conditions -

1. 'agent_code' should be within some 'agent_code' from 'customer' table, which satisfies the condition bellow:

  a) 'cust_country' in the 'customer' table must be 'UK',

the following SQL statement can be used :

SQL Code:

SELECT agent_code,agent_name,working_area,commission
FROM agents
WHERE agent_code=SOME(
SELECT agent_code FROM customer
WHERE cust_country='UK');

Sample table: agents

Sample table: customer

Output:

AGENT_CODE AGENT_NAME           WORKING_AREA         COMMISSION
---------- -------------------- -------------------- ----------
A009       Benjamin             Hampshair                   .11
A003       Alex                 London                      .13
A006       McDen                London                      .15

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