A Sudoku solution with set based T-SQL utilizing binary operators

A Sudoku solution with set based T-SQL approach utilizing binary values and operators, to ease the algorithm.

Floor Function

TSQL Spam-killer

In which Phil takes a break from a tedious bit of routine coding to build a Spam Filter in SQL.

Reading the SQL Server log files using T-SQL

One of the issues I have is that the SQL Server Error Log is quite large and it is not always easy to view the contents with the Log File Viewer. In a previous tip "Simple way to find errors in SQL Server error log" you discussed a method of searching the error log using VBScript. Are there any other easy ways to search and find errors in the error log files?

SQL String User Function Workbench: part 1

Robyn and Phil go back to basics and hammer out some basic String-handling User Functions in TSQL, based on Python examples. Plenty of sample code, and TSQL programming tricks.

Remove Duplicate Records

To remove duplicate records with out using temporary tables.

T-SQL Query

Giving Permissions through Stored Procedures

QL 2005 adds two new methods – signing with certificates and impersonation with EXECUTE AS – that can manage cases where the classic method of ownership chaining fails. I explain the two new methods, as well as the old one, and warns you about the pitfalls.

Calculate Age

This a function by which you can calculate the age of something.

Joining to the Next Sequential Row

One of the more obscure requirements that a developer may find themselves facing is the need to compare a row with its immediate sibling. One such case is when a list of values needs to be processed to produce a moving average or to smooth a sequence of statistical numbers where their order is important. For example, values lying along a time line. The solution is actually quite simple, but not immediately obvious.