This article explained how to get/check the table structure in PostgreSQL. How to Get/Check Table Structure in Postgres? In PostgreSQL, various methods are used to check the table’s structure. The following methods will be discussed to determine the table’s structure in Postgres: - Method 1...
What is NULLIF() and How to Use it in PostgreSQL? It is a built-in function in Postgres that accepts a couple of arguments and retrieves a NULL value if both arguments are equal or if either of the specified arguments is NULL. It retrieves the first argument if both arguments are not...
Step 3: Restart the PostgreSQL Server Restart the PostgreSQL Server to ensure that the new “max_connections” value takes effect. For this purpose, open the “services” app, locate the “PostgreSQL” service, and click on the “restart” button: Once the PostgreSQL service is restarted, the...
In PostgreSQL, converting the case of a string is a useful technique that is used to format the strings into a specific case. For this purpose, Postgres provides various built-in functions. These built-in functions can easily transform the case of your strings according to your requirements. T...
Exit out of the PostgreSQL prompt by typing: \q Copy This will bring you back to thepostgresLinux command prompt. Accessing a Postgres Prompt Without Switching Accounts In the last example, you were instructed to get to the Postgres prompt by first switching to thepostgresuser and then running...
3.Usually,PostgreSQLstarts automatically on boot up. You can confirm this using the command given below: $ sudo systemctl status postgresql Check PostgreSQL Status 4.To log in to yourPostgreSQLinstance, first switch to thepostgresuser. The Postgres user comes included by default with the installati...
You should now know enough to create and manage simple tables in PostgreSQL. These skills will be helpful if you are managing data from another application, or learning the how to control PostgreSQL from the command line. Thanks for learning with the DigitalOcean Community. Check out ...
Steps to Install PostgreSQL on CentOS Let us discuss the procedure to install PostgreSQL in detail. Step 1 We have been using CentOS version 7.7 to install PostgreSQL. Below is the command to check the CentOS version: Code: # cat /etc/Redhat-release ...
We have used Postgres users to change the database name in PostgreSQL. \l+ alter database db_testing rename to db_test; \l+ 2. Alter the database using a command prompt In the below example, we have to change the database name from the command prompt by using the alter database sta...
best out of PostgreSQL logs. This blog is not a hard and fast rule book; readers are more than welcome to share their thoughts in the comments section. To get the best value out of it though, I ask the reader to think about how they want to use their PostgreSQL database server logs...