T-SQL (Transact-SQL) is an extension of SQL language. This tutorial covers the fundamental concepts of T-SQL such as its various functions, procedures, indexes, and transactions related to the topic. Each topic is explained using examples for easy understanding.
T-SQL - Overview In 1970's the product called 'SEQUEL', structured English query language, developed by IBM and later SEQUEL was renamed to 'SQL' which stands for Structured Query Language.
Different RDBMS product vendors have developed their own database language by extending SQL for their own RDBMS products. T-SQL stands for Transact Structure Query Language which is a Microsoft product and is an extension of SQL Language. Example MS SQL Server - SQL\T-SQL ORACLE - SQL\PL-SQL
SQL Server data type is an attribute that specifies types of data of any object. Each column, variable and expression has related data type in SQL Server. These data types can be used while creating tables. You can choose a particular data type for a table column based on your requirement.
The SQL Server DELETE Query is used to delete the existing records from a table. You have to use WHERE clause with DELETE query to delete selected rows, otherwise all the records would be deleted. Syntax Following is the basic syntax of DELETE query with WHERE clause − DELETE FROM table_name WHERE [condition]; You can combine N number of conditions using AND or OR operators.
Creating a basic table involves naming the table and defining its columns and each column's data type. The SQL Server CREATE TABLE statement is used to create a new table. Syntax Following is the basic syntax of CREATE TABLE statement − CREATE TABLE table_name( column1 datatype, column2 datatype, column3 datatype, ..... columnN datatype, PRIMARY KEY( one or more columns )); CREATE TABLE is ...
MS SQL Server has many built-in functions to perform processing on string or numeric data. Following is the list of all useful SQL built-in functions ?
