Microsoft® SQL Server® 2012 Bible

IN THIS PART Chapter 16 Programming with T-SQL Chapter 17 Developing Stored Procedures Chapter 18 Building User Defi ned Functio ...

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389 CHAPTER 16 Programming with T-SQL IN THIS CHAPTER Exploring the Basics of T-SQL and Batches Working with Local Variables Con ...

390 Part IV: Programming with T-SQL Transact-SQL Fundamentals T-SQL is designed to add structure to the handling of sets of data ...

391 Chapter 16: Programming with T-SQL 16 Result: Beginning execution loop I'm a batch. I'm a batch. I'm a batch. I'm a batch. I ...

392 Part IV: Programming with T-SQL T-SQL Formatting Throughout this book, T-SQL code has been formatted for readability; this s ...

393 Chapter 16: Programming with T-SQL 16 Bracketed comments begin with /* and conclude with */. These comments are useful for c ...

394 Part IV: Programming with T-SQL Result of the entire script: ----------- ------------------------- NULL NULL (1 row(s) affec ...

395 Chapter 16: Programming with T-SQL 16 @ProductName varchar(25); SET @ProductID = 782; SELECT @ProductID = ProductID, @Produc ...

396 Part IV: Programming with T-SQL Incrementing Variables T-SQL has the increment variable feature, which saves a few keystroke ...

397 Chapter 16: Programming with T-SQL 16 Using Variables within SQL Queries Another feature of T-SQL is that variables may be u ...

398 Part IV: Programming with T-SQL This type of data retrieval is quite common. Often a vertical list of values is better repor ...

399 Chapter 16: Programming with T-SQL 16 An alternative method to denormalize a list is the XML PATH method: SELECT [text()] = ...

400 Part IV: Programming with T-SQL IF Condition Begin; Multiple lines; End; Using If exists() as an Existence-Based Condition W ...

401 Chapter 16: Programming with T-SQL 16 PKColumn int PRIMARY KEY, ColumnA int); CREATE TABLE dbo.FKTable( FKColumn int PRIMARY ...

402 Part IV: Programming with T-SQL The WHILE command tests the condition. If the condition is true, WHILE executes the followi ...

403 Chapter 16: Programming with T-SQL 16 of the batch or procedure. Although this is syntactically correct, and you’re likely t ...

404 Part IV: Programming with T-SQL Result: Table Primary Key -------------------------- -------------------------------------- ...

405 Chapter 16: Programming with T-SQL 16 System functions can’t be created. There’s a fi xed set of system functions, all begin ...

406 Part IV: Programming with T-SQL Temporary Tables and Table Variables Temporary tables and table variables play a different r ...