Posted inMY SQL Oracle PL/SQL SQL

SQL remove duplicates

Removing duplicates from a SQL database is a common task that can help improve data quality and query performance. Duplicates occur when there are multiple rows in a table with identical values in one or more columns. You can eliminate these duplicates using various SQL techniques and clauses. In this…
Posted inMY SQL Oracle PL/SQL SQL

SQL TCL statements

Transaction Control Language (TCL) in SQL is a subset of SQL commands used to manage database transactions. Transactions are a fundamental concept in database systems, ensuring data integrity and consistency by grouping a set of SQL statements into a single logical unit of work. TCL commands allow developers to control when changes…
Posted inMY SQL Oracle PL/SQL SQL

IF ELSE Statement

In the world of SQL Server, conditional logic is a powerful tool that enables developers to execute specific actions based on certain conditions. Among the most commonly used constructs for implementing conditional logic is the IF ELSE statement. This versatile control-flow tool allows you to make decisions and dictate the flow…