In PostgreSQL, there are multiple ways to list tables in the current database. In this article, we will explore two methods: using the psql tool and running an SQL query.
Method 1: Using psql
To list the tables in the current database using the psql tool, follow these steps:
- Open the psql tool in your terminal or command prompt.
- Connect to your PostgreSQL database by running the following command:
psql -U username -d database_name
Replace username
with your PostgreSQL username and database_name
with the name of your database.
- Once connected, run the following command to list the tables in the current database:
\dt
This will display a list of all the tables in the current database.
Method 2: Running an SQL Query
If you prefer to run an SQL query instead of using the psql tool, you can follow these steps:
- Open the psql tool in your terminal or command prompt.
- Connect to your PostgreSQL database by running the following command:
psql -U username -d database_name
Replace username
with your PostgreSQL username and database_name
with the name of your database.
- Once connected, run the following SQL query to list the tables in the current database:
SELECT table_name
FROM information_schema.tables
WHERE table_schema = 'public'
ORDER BY table_name;
This query retrieves the names of all tables in the “public” schema and sorts them alphabetically.
By following either of these methods, you can easily obtain a comprehensive list of tables in your PostgreSQL database.