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Have you ever opened any PowerPoint deck when you face SQL Server Performance Tuning emergencies? SQL Server Performance Tuning Practical Workshop is my MOST popular training with no PowerPoint presentations and 100% practical demonstrations.

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SQL SERVER – Comparison Index Fragmentation, Index De-Fragmentation, Index Rebuild – SQL SERVER 2000 and SQL SERVER 2005

Index Fragmentation: When a page of data fills to 100 percent and more data must be added to it, a page split occurs. To make room for the new data, SQL Server must move half of the data from the full page to a new page. The new page that…
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SQL SERVER – Explanation and Comparison of NULLIF and ISNULL

Explanation of NULLIF
Syntax:
NULLIF ( expression , expression )

Returns a null value if the two specified expressions are equal. NULLIF returns the first expression if the two expressions are not equal. If the expressions are equal, NULLIF returns a null value of the type of the first expression. NULLIF is equivalent to a searched CASE function in which the two expressions are equal and the resulting expression is NULL.

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