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Getting information about your database

As we saw in the video, PostgreSQL has a system database called INFORMATION_SCHEMA that allows us to extract information about objects, including tables, in our database.

In this exercise we will look at how to query the tables table of the INFORMATION_SCHEMA database to discover information about tables in the DVD Rentals database including the name, type, schema, and catalog of all tables and views and then how to use the results to get additional information about columns in our tables.

Questo esercizio fa parte del corso

Functions for Manipulating Data in PostgreSQL

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Esercizio pratico interattivo

Prova a risolvere questo esercizio completando il codice di esempio.

 -- Select all columns from the TABLES system database
 SELECT * 
 FROM ___.___
 -- Filter by schema
 WHERE table_schema = ___;
Modifica ed esegui il codice