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SQL Server FAQs - Introduction To Transact-SQL Language Basics and Data Types

By: FYIcenter.com

A collection of 19 FAQs on Transact-SQL language basics and data types. Clear answers are provided with tutorial exercises on writing Transact-SQL statements; entering comments; ending and running statement batches; GO and PRINT statements; exact and approximate numeric data types; data and time, Unicode character strings and binary strings. Topics included in this FAQ are:

  1. What Is SQL Language?
  2. What Is Transact-SQL Language?
  3. What Is a Transact-SQL Statement?
  4. How To Start and End Transact-SQL Statements?
  5. How To Enter Comments in Transact-SQL Statements?
  6. What Is a Transact-SQL Statement Batch?
  7. What Happens to a Statement Batch If There Is a Compilation Error?
  8. How To Use GO Command in "sqlcmd"?
  9. How To Create User Messages with PRINT Statements?
  10. How Many Categories of Data Types Used by SQL Server?
  11. What Are Exact Numeric Data Types?
  12. What Are Approximate Numeric Data Types?
  13. What Are Date and Time Data Types?
  14. What Are Character String Data Types?
  15. What Are Unicode Character String Data Types?
  16. What Are Binary String Data Types?
  17. What Are the Differences between CHAR and NCHAR?
  18. What Are the Differences between CHAR and VARCHAR?
  19. What Are the Differences between DECIMAL and FLOAT?

Please note that all answers and tutorials are based on MS SQL Server 2005. To follow tutorials in this collection, you should connect to SQL server as a regular user who has enough permissions to run simple Transact-SQL statements.

For questions on Transact-SQL language, see the other FAQ collections.

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