Answers for "postgresql create table if not exists"

how to check table exists or not in postgresql

SELECT 1 FROM information_schema.tables
WHERE table_schema = 'schema_name'	AND table_name = 'table_name';

Posted by: Guest on June-24-2020

postgres create database if not exists

SELECT 'CREATE DATABASE mydb'
WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = 'mydb')\gexec

Posted by: Guest on June-02-2021

mysql create table if not exists

CREATE TABLE [IF NOT EXISTS] table_name(
   column_1_definition,
   column_2_definition,
   ...,
   table_constraints
) ENGINE=storage_engine;

Posted by: Guest on October-14-2020

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