Souy Soeng

PostgreSQL CONCAT Function The CONCAT function in PostgreSQL is used to combine multiple strings into one . It automatically handles NULL values b…

PostgreSQL LIMIT Clause The LIMIT   The clause in PostgreSQL  restricts the number of rows  a query returns . This is useful for pagination , top N …

PostgreSQL SELECT Statement The SELECT statement in PostgreSQL is used to retrieve data from a table. You can filter, sort, group, and modify the d…

PostgreSQL ORDER BY Clause The ORDER BY clause in PostgreSQL is used to sort query results in either ascending (ASC) or descending (DESC) order.

PostgreSQL Data Types PostgreSQL provides a rich set of data types to store different kinds of data efficiently. Below is a categorized list of the …

Step 1: Install PostgreSQL (If Not Installed) If you haven’t installed PostgreSQL yet, you need to install it first.

MySQL INDEXES: A Comprehensive Guide What is an Index in MySQL? An index in MySQL is a data structure that improves the speed of data retrieval oper…

How to Alter Stored Procedures in MySQL MySQL does not provide a direct ALTER PROCEDURE statement. If you need to modify a stored procedure, you mu…

MySQL CHECK Constraint Emulation 1. What is the CHECK Constraint? The CHECK constraint is used to enforce a condition on column values in a table. …