PostgreSQL Where

PostgreSQL Where

The PostgreSQL WHERE clause is used to return records that meet the conditions in a select.

Where syntax

-- select the records that meet the condition
SELECT * FROM table_name WHERE {condition}

SELECT * FROM view_name WHERE {condition}

SELECT * FROM A, B WHERE A.id=B.id

Where example

Goods table

idgood_typenamedescriptionpriceinsert_date
1ACar_1Car 1 description1002018-07-21 08:45:57.311809
2ACar_2Car 2 description2002018-07-21 08:45:57.311809
3ACar_3Car 3 description1002018-07-21 08:45:57.311809
4BBoat_4Boat 4 description5002018-07-21 08:45:57.311809
5BBoat_5Boat 5 description3002018-07-21 08:45:57.311809
6CTrain_1Train 123 description8002018-07-21 08:45:57.311809
SELECT * FROM goods WHERE price = 100;

Result

idgood_typenamedescriptionpriceinsert_date
1ACar_1Car 1 description1002018-07-21 08:45:57.311809
3ACar_3Car 3 description1002018-07-21 08:45:57.311809