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SQL SERVER - Find Monday of the Current Week

SQL SERVER – Find Monday of the Current Week

August 20, 2007
Pinal Dave
SQL Tips and Tricks
SQL DateTime, SQL Scripts, SQL Utility

Find Monday of the current week with one line of T-SQL: DATEADD and DATEDIFF with the week part and GETDATE() give you the date.

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The SQL Basics Almost Everybody Skips

August 19, 2007
Pinal Dave
SQL Tips and Tricks
Best Practices, Database, SQL Scripts, SQL Server

Revisit SQL basics that change query results: NULL logic, logical processing order, grouped filters, and the difference between two common counts.

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A paper calendar with the last day of the month circled in red.

SQL SERVER – Find Last Day of Any Month – Current Previous Next

August 18, 2007
Pinal Dave
SQL Tips and Tricks
SQL DateTime, SQL Function, SQL Scripts, SQL Utility

Find the last day of any month with DATEADD and DATEDIFF. One script returns the last day of the previous, current and next month in SQL Server.

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SQL SERVER - 2005 - Explanation and Script for Online Index Operations - Create, Rebuild, Drop

SQL SERVER – 2005 – Explanation and Script for Online Index Operations – Create, Rebuild, Drop

August 17, 2007
Pinal Dave
SQL Performance
SQL Index, SQL Scripts, SQL Server DBCC

What are online index operations? SQL Server 2005 Enterprise Edition can create, rebuild and drop indexes without locking tables, and I explain how.

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The Dynamic Management Views Worth Knowing by Heart

August 16, 2007
Pinal Dave
SQL Tips and Tricks
Best Practices, Database, SQL Scripts, SQL Server

Use dynamic management views to inspect active requests, waits, cached queries, index activity, and file space without guessing at server health.

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SQL SERVER - 2005 - Difference and Similarity Between NEWSEQUENTIALID() and NEWID()

SQL SERVER – 2005 – Difference and Similarity Between NEWSEQUENTIALID() and NEWID()

August 16, 2007
Pinal Dave
SQL Tips and Tricks
SQL Error Messages, SQL Scripts

NEWSEQUENTIALID() and NEWID() both create a uniqueidentifier GUID. NEWID() is random while NEWSEQUENTIALID() is sequential, as my test table shows.

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SQL SERVER - Insert Data From One Table to Another Table - INSERT INTO SELECT - SELECT INTO TABLE

SQL SERVER – Insert Data From One Table to Another Table – INSERT INTO SELECT – SELECT INTO TABLE

August 15, 2007
Pinal Dave
SQL Performance
SQL Scripts, SQL Stored Procedure

How to copy data from one table to another without a cursor: INSERT INTO SELECT for an existing table, or SELECT INTO to create a new table.

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