PostgreSQL – How to List All Materialized Views

ByAdmin

To list the materialized views in a PostgreSQL database, you can query the system catalog tables. Materialized views are stored as objects in the database, and you can query the catalog to retrieve information about them. Here’s a query to list all materialized views in a PostgreSQL database:

SELECT schemaname, matviewname FROM pg_matviews;

Above query selects the schema name and materialized view name from the pg_matviews catalog table, which contains information about all the materialized views in the current database.

If you want to see more details about the materialized views, you can use the following query to retrieve additional information:

SELECT schemaname, matviewname, matviewowner, ispopulated, definition FROM pg_matviews;

This query includes the owner of each materialized view, whether the materialized view is populated (i.e., whether it contains data), and the SQL definition of the materialized view.

You can execute these queries using a PostgreSQL client like psql or any other tool that can connect to your PostgreSQL database.

Similar Posts

PostgreSQL – How to Rename a Column

ByAdmin

To rename a column in PostgreSQL, you can use the ALTER TABLE statement with the RENAME COLUMN clause. Below is the basic syntax for renaming a column in PostgreSQL: ALTER TABLE table_name RENAME COLUMN old_column_name TO new_column_name; where table_name is the name of the table containing the column you want to rename, old_column_name is the…

PostgreSQL – How to Get Current and Next Values of Sequence

ByAdmin

You can use Sequences to generate unique integer values, often used as auto-incrementing primary keys in tables. You can obtain the current value and the next value of a sequence using the currval and nextval functions, respectively. These functions are typically used within SQL statements or in PL/pgSQL code. Current Value (currval): To get the…

PostgreSQL – How to Retrieve the Size of A Database

ByAdmin

To get the size of a PostgreSQL database, you can use a few different methods, including SQL queries and command-line utilities. Here are a couple of approaches: Using SQL Query You can use the following SQL query to get the size of a specific database in PostgreSQL: SELECT pg_size_pretty(pg_database_size(‘your_database_name’)) AS database_size; where your_database_name is the…

PostgreSQL – How to List All Databases

ByAdmin

To list all databases in PostgreSQL, you can use the following SQL command: SELECT datname FROM pg_database; Above query will display a list of database names currently available on the server. You should have the necessary permissions to list databases on the PostgreSQL server. If you encounter permission issues, make sure you are logged in…

PostgreSQL – How to Create A Sequence

ByAdmin

You can create a sequence using the CREATE SEQUENCE command in PostgreSQL database. A sequence is typically used to generate unique integer values, often for primary keys or other situations where you need a unique identifier. Here’s the basic syntax to create a sequence: CREATE SEQUENCE sequence_name [ INCREMENT increment ] [ MINVALUE min_value ]…

PostgreSQL – How to Alter Default Privileges of A Schema

ByAdmin

You can use the ALTER DEFAULT PRIVILEGES statement in PostgreSQL database to set default privileges that will be applied to newly created objects in a schema. This is a powerful way to control access and permissions for objects created by a specific user or role in a particular schema. Here’s the basic syntax for using…