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SQL-Transact SQL (T-SQL)

  • Unconditional and scheduled execution

    Unconditional execution (the GoTo Statement) in T-SQL forces the server to continue the execution from a label within a stored procedure or batch. Scheduled execution (the WaitFor Statement) allows the developer to schedule a time for the remaining s...  Tutorial

  • Character string data types

    There are four different character data types that store character strings: char, varchar, varchar(max), and text. There are also four character data types for storing unicode data: nchar, nvarchar, nvarchar(max) and ntext. This book excerpt on T-SQL...  Tutorial

  • Blocks, looping and conditional flow control statements

    Statements blocks (Begin…End) can be used to group several statements to be executed together. Conditional execution (If statements) are used to change the flow of code based on the value of a condition. T-SQL contains only one statement that allows ...  Tutorial

  • Flow control statements

    T-SQL flow-control statements require skill and lack user friendliness, yet they allow for complex procedures. This book excerpt covers the use of comments. Comments can be included inside the source code of a batch or stored procedure. Comments are ...  Tutorial

  • Database object qualifiers

    The name of a database object has four identifiers. These identifiers must comply with the rules for T-SQL identifiers. This is referred to as the object's fully qualified name. The following excerpt outlines the different schemas that can be created...  Tutorial

  • Global variables

    Your SQL Server maintains values in global variables. They carry information specific to the server or user session and can be examined from anywhere and return one value. Get more on this and how global variables begin with the @@ prefix and do not ...  Tutorial

  • T-SQL identifiers

    T-SQL Identifiers are used in all databases, servers and database objects in SQL Server. Identifiers are assigned to identify and object when it is created, but can be changed after. Rules and tips for creating identifiers are outlined in the followi...  Tutorial

  • Table variables

    Table variables are similar to temporary tables and are declared using the table data type. This following book excerpt contains further explanations and examples for declaring table variables when working T-SQL programming constructs.  Tutorial

  • Local variables

    SQL Server 2005 recognizes only local and table variables. This book except outlines operations such as declaring variables, assigning values with the select, set, or update statement; and displaying values. Also find some workarounds for potential p...  Tutorial

  • Basic Transact-SQL programming constructs: 15 tips, 15 minutes

    The programming language used in Microsoft SQL Server is called Transact-SQL (T-SQL). It complies with the ANSI SQL-92 standard, and you can use this ANSI SQL-compliant language to select, update, insert and delete records from tables.  Book Excerpt

  • See More: Essential Knowledge on SQL-Transact SQL (T-SQL)
About SQL-Transact SQL (T-SQL)

Transact SQL, often called T-SQL, is Microsoft's implementation of the SQL language. Developers for SQL Server database management systems are using T-SQL statements for any application communicating with an instance of SQL Server does so by sending Transact SQL statements to the server. Improve your T-SQL skills with these T-SQL overviews, best practices and stored procedures. In this reference, find out how to script SQL Server backups, why T-SQL in SSIS has pros and cons and what to do about poorly written T-SQL code that's causing SQL Server performance problems.