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PostgreSQL LENGTH() Function With Practical Examples

The Postgres LENGTH() function accepts a string as an argument and calculates the total number of characters in that particular string.

How to Show Databases in PostgreSQL

In PostgreSQL, the “\l” command and “pg_databases” catalog are used to show the list of databases. Use the “\l+” command to show databases with more details.

How to Create a Database in PostgreSQL

A Postgres database can be created using “CREATE DATABASE” or “createdb” commands. The difference is that the “createdb” can be executed from the command prompt.

How to Install PostgreSQL (psql) on Arch Linux

To install PostgreSQL on the Arch system, use the default Pacman package manager tool. More specifically, using the “sudo pacman -S postgresql” command.

How to Use LIMIT Clause in PostgreSQL

In PostgreSQL, the LIMIT clause and OFFSET clause allow us to retrieve only a subset of data returned/generated by the SELECT query.

How to Install PostgreSQL on Ubuntu 24.04

To install Postgres on Ubuntu 24.04, first update the system packages and then use the “sudo apt install postgresql postgresql-contrib -y” command.

How to Use RENAME TABLE Statement in PostgreSQL

In PostgreSQL, the RENAME TO clause is used with the collaboration of the ALTER TABLE statement to rename an already existing table.

PostgreSQL TIME Data Type With Examples

To use TIME data type in Postgres, first, create a table with a TIME-type column. Once created, you can insert any time value into that column using the INSERT command.

How to Use Insert Query in PostgreSQL

In PostgreSQL, the “INSERT INTO” statement is used to add/insert an individual or multiple records into a specific table.

PostgreSQL IF Statement With Examples

If statement executes only those expressions that satisfy the specified condition. Otherwise the control will be moved to the next statement.