PostgreSQL – DELETE Query The PostgreSQL DELETE Query is used to delete the existing records from a table. You can use WHERE clause with DELETE query to delete the selected rows. Otherwise, all the records would be deleted. Syntax The basic syntax of DELETE query with WHERE clause is as follows − DELETE FROM table_name […]
Category Archives: postgresql
PostgreSQL – Syntax This chapter provides a list of the PostgreSQL SQL commands, followed by the precise syntax rules for each of these commands. This set of commands is taken from the psql command-line tool. Now that you have Postgres installed, open the psql as − Program Files → PostgreSQL 9.2 → SQL Shell(psql). Using […]
PostgreSQL – Schema A schema is a named collection of tables. A schema can also contain views, indexes, sequences, data types, operators, and functions. Schemas are analogous to directories at the operating system level, except that schemas cannot be nested. PostgreSQL statement CREATE SCHEMA creates a schema. Syntax The basic syntax of CREATE SCHEMA is […]