A simple UDF, ExtractInteger, to extract only numbers from string input. I test it with a phone number that also has letters in it.
SQL SERVER – 2005 – Explanation of TRY…CATCH and ERROR Handling
SQL Server 2005 brings TRY…CATCH for error handling, so you no longer check @@ERROR after every statement. Here is how the TRY and CATCH blocks work.
SQL SERVER – 2005 – Silent Installation – Unattended Installation
Silent installation of SQL Server 2005 in two steps: an .ini file built from template.ini, then setup.exe with /qn or /qb. Plus tips to test it.
SQL SERVER – SP Performance Improvement without changing T-SQL
Two easy ways to improve SP performance without changing T-SQL: do not prefix stored procedures with sp_, and call them by the fully qualified dbo name.
SQL SERVER – 2005 Reserved Keywords
SQL Server 2005 Reserved Keywords are part of the T-SQL grammar, so avoid them as object names. If you must use one, you need delimited identifiers.
SQL SERVER – Search Text Field – CHARINDEX vs PATINDEX
CHARINDEX and PATINDEX both return the start position of a pattern in a text field. PATINDEX allows wildcards, CHARINDEX does not. Examples use AdventureWorks.
CHOOSE: Handle Indexes Outside the List
CHOOSE returns an item from a positional list. Check unsupported indexes and compare a consistently typed CASE expression with an explicit fallback.
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