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PostgreSQL SELECT Statement

The PostgreSQL SELECT statement is used to select data from the database.

The results are stored in a result table called a result set.

Syntax

The syntax format of the SELECT statement is as follows:

SELECT column1, column2,...columnN FROM table_name;
  • column1, column2,...columnN is the field name in the table.

  • table_name is the table name.

If we want to read all the data in the table, we can use the following SQL statement:

SELECT * FROM table_name;

in the previous chapter  INSERT INTO statement In the table, we have inserted some data into the table company using * number can read all the data in the table:

w3codeboxdb=# SELECT * FROM company;
ID                   NAME                   AGE                   ADDRESS                   SALARY           JOIN_DATE
----      ----------  -----      ----------  -------      --------
1         Paul        32         California  20000.0      2001-07-13
2         Allen       25         Texas                    2007-12-13
3         Teddy       23         Norway      20000.0
4         Mark        25         Rich-Mond   65000.0      2007-12-13
5         David       27         Texas       85000.0      2007-12-13

We can also read the specified fields ID and NAME:

w3codeboxdb=# SELECT ID, NAME FROM company;
 id | name  
----+-------
  1 | Paul
  2 | Allen
  3 | Teddy
  4 | Mark
  5 | David
(5 rows)