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How to Create a View in PostgreSQL

In Postgres, the CREATE VIEW statement defines a new view based on the selected table(s). To create a view from several tables, use the CREATE VIEW statement with INNER JOIN.

How to List Views in PostgreSQL

In PostgreSQL, the “\d”, “\dv”, “\dv+” commands, “information_schema.views”, etc., are used to list all the views from a database.

PostgreSQL ALTER VIEW Statement With Examples

In Postgres, the ALTER VIEW command modifies the views’ definition, such as setting the column's default value, changing the view’s owner, renaming a view, etc.

PostgreSQL CREATE OR REPLACE VIEW - How to Modify View’s Defining Query

Postgres provides a “CREATE OR REPLACE VIEW” statement to create a new view or replace an existing view's defining query. It allows us to modify the defining query of a view without dropping a view. It defines a new view if the desired view doesn’t exist already or modifies the view’s defining query if it already exists.

This blog explains how to replace the view’s definition using the “CREATE or …

PostgreSQL - List All Columns of a Specific Table

In PostgreSQL, the “\d” command, “\d+” command, “information_schema”, and “pgAdmin” are used to list all columns of a table.

PostgreSQL: Listing and Switching Databases in psql

“\List”, “\l”, and “pg_database” is used in SQL Shell to get the database list. While to switch databases in SQL Shell, the “\c” and “\connect” commands are used.

How to Import or Export CSVs to PostgreSQL Using pgAdmin

This post demonstrates stepwise instructions for importing CSV to Postgres or exporting Postgres tables to CSV files using pgAdmin.

How to Import or Export CSV Files to PostgreSQL Using psql

PostgreSQL allows us to import CSV files to Postgres tables or export Postgres tables to CSV files using SQL Shell (psql). To do that, the “\COPY” command is used.

How to Combine Two Tables Using INNER JOIN in PostgreSQL

Postgres provides an INNER JOIN clause to combine the records of multiple tables based on a specific condition/criteria.

How to Drop All Tables in PostgreSQL?

Postgres provides a couple of ways to drop all the tables of a Postgres database, such as dropping the complete schema or removing the schema’s tables individually.