PostgreSQL Select
PostgreSQL Select
The PostgreSQL SELECT statement is used to query records from a table.
Select syntax
-- select all records from table SELECT * FROM table_name -- select specific columns SELECT column_1, column_2 FROM table_name -- select the records that meet the conditions SELECT * FROM table_name WHERE {conditions}
Select example
Goods table
id | good_type | name | description | price | insert_date |
---|---|---|---|---|---|
1 | A | Car_1 | Car 1 description | 100 | 2018-07-21 08:45:57.311809 |
2 | A | Car_2 | Car 2 description | 200 | 2018-07-21 08:45:57.311809 |
3 | A | Car_3 | Car 3 description | 100 | 2018-07-21 08:45:57.311809 |
4 | B | Boat_4 | Boat 4 description | 500 | 2018-07-21 08:45:57.311809 |
5 | B | Boat_5 | Boat 5 description | 300 | 2018-07-21 08:45:57.311809 |
6 | C | Train_1 | Train 123 description | 800 | 2018-07-21 08:45:57.311809 |
SELECT * FROM goods; SELECT id, name FROM goods; SELECT id, name FROM goods WHERE id > 3; SELECT * FROM goods WHERE name LIKE '%Boat%';