Where TSQL Tutorial

Where Example:

CONTRACT_IDCUSTOMER_IDAMOUNT
11400
22500
33700
411000
521200
64900
732000
821500

SELECT c.contract_id, c.customer_id, c.amount
  FROM contracts c
WHERE c.amount > 900 ;

Contract_IdCustomer_IdAmount
411000
521200
732000
821500