SQL Server - SQL Server tutorial

SQL Server PRIMARY KEY

When working with databases, ensuring data integrity and uniqueness is paramount. One of the most critical tools for achieving this in SQL Server is the PRIMARY KEY constraint. Whether you’re a beginner in database design or a seasoned professional, understanding how to use PRIMARY KEY effectively can make a significant difference in the performance, reliability, […]

SQL Server Drop table

| SQL Server

In SQL Server, the DROP TABLE statement is used to permanently remove a table and its associated data, indexes, constraints, and triggers from a database. This operation is irreversible, so it should be executed with caution. Syntax DROP TABLE [IF EXISTS] table_name; Key Points IF EXISTS Clause: This optional clause ensures that the statement does […]

SQL Server Alter table

| SQL Server

In SQL Server, the ALTER TABLE statement is a powerful command that allows database administrators and developers to modify the structure of existing tables without recreating them. This flexibility is essential for adapting databases to evolving requirements, fixing issues, or optimizing performance. This blog provides an in-depth look at the ALTER TABLE statement, its syntax, […]

SQL Server Create table

| SQL Server

SQL Server, a powerful relational database management system (RDBMS), provides a structured way to store and manage data. One of the foundational tasks in SQL Server is creating tables, which serve as the building blocks for storing data. The CREATE TABLE statement is a fundamental SQL command used to define a table’s structure. In this […]

SQL Server Merge

| SQL Server

The SQL Server MERGE statement is a versatile and powerful tool for performing insert, update, and delete operations in a single statement. It allows developers and database administrators to efficiently manage changes in target tables based on data in a source table. Introduced in SQL Server 2008, the MERGE statement simplifies complex tasks, reduces code […]

SQL Server Truncate

| SQL Server

The TRUNCATE statement in SQL Server is a Data Definition Language (DDL) command used to quickly remove all rows from a table. Unlike the DELETE statement, TRUNCATE is more efficient because it operates without logging individual row deletions. This makes it ideal for resetting tables while retaining their structure. Syntax of the TRUNCATE Statement The […]