T-SQL Language Elements

Introduction

This section provides an overview of the T-SQL language elements. T-SQL is the Transact-SQL language used by Microsoft SQL Server and Azure SQL Database.

T-SQL Language Elements

T-SQL is the standard language for interacting with SQL Server and Azure SQL Database. It allows you to define and manipulate databases, create stored procedures, and write queries.

Key Concepts

Here are some key concepts in T-SQL:

• Data Types: Specifying the type of data stored in a column.
• Operators: Performing calculations and comparisons.
• Clauses: Used in SQL statements to define conditions and actions.
• Stored Procedures: Precompiled SQL code that can be executed repeatedly.
• Functions: Reusable blocks of code that perform specific tasks.

Examples

Here are some basic T-SQL examples:

SELECT * FROM Customers;

INSERT INTO Customers (CustomerID, CustomerName, City) VALUES (1, 'John Doe', 'New York');