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Warnings for sum and average calculation.

SQL SERVER – Warning: Null value is Eliminated by an Aggregate or Other SET Operation

February 13, 2015
Pinal Dave
SQL Tips and Tricks
SQL Error Messages

Why does SQL Server warn that Null value is eliminated by an aggregate or other SET operation? I show when it appears and how it can be suppressed.

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Execute Package Task Editor.

SQL SERVER – The Basics of the Execute Package Task – Notes from the Field #067

February 12, 2015
Pinal Dave
SQL Tips and Tricks
Notes from the Field, SQL Backup and Restore, SSIS

SSIS expert Andy Leonard covers the basics of the Execute Package Task, how to configure it and how one SSIS package can call another.

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SQL SERVER - Script to Find Leap Year

SQL SERVER – Script to Find Leap Year

February 11, 2015
Pinal Dave
SQL Tips and Tricks

A simple T-SQL script to check whether a year is a leap year, using DATEADD and EOMONTH to find the last day of February for that year.

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SQL SERVER - Error: Fix for Error Msg 3906 - Failed to update database because the database is read-only

SQL SERVER – Error: Fix for Error Msg 3906 – Failed to update database because the database is read-only

February 10, 2015
Pinal Dave
SQL Tips and Tricks
SQL Error Messages

Getting Msg 3906, Failed to update database because the database is read-only? The message says it all. Here is how to make the database writable again.

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SQL SERVER - Viewing User Configurable Info in SQL Server

SQL SERVER – Viewing User Configurable Info in SQL Server

February 9, 2015
Pinal Dave
SQL Tips and Tricks
SQL Scripts

A reader asked about sp_user_counter1 to 10 for debugging. I show how sp_trace_generateevent raises events you can watch as User Configurable info.

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A full storage chest beside an empty chest

Interview Question of the Week #006 – Is Shrinking Database Good or Bad?

February 8, 2015
Pinal Dave
SQL Interview Questions and Answers
Shrinking Database

Decide whether shrinking database good or bad advice fits your case, inspect fragmentation, and use low-priority shrink cautiously.

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SQL SERVER - What are the Different Ways to Script Procedure with T-SQL

SQL SERVER – What are the Different Ways to Script Procedure with T-SQL

February 7, 2015
Pinal Dave
SQL Tips and Tricks
SQL Stored Procedure

What are the different ways to script procedure code with T-SQL? There are four, including sp_helptext and INFORMATION_SCHEMA.ROUTINES. Here is each one.

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