Umachandar Jayachandran

Umachandar Jayachandran works on the SQL Performance Engineering Team at Microsoft. He specializes in online transaction processing and data warehousing, and he is a contributing author of SQL Unleashed, 2nd Edition (SAMS). You can find his contributions at http://blogs.msdn.com/sqltips and http://blogs.msdn.com/sqlperf.
Email:umachandar@yahoo.com

My Latest Articles
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Author Articles

August, 2007
July Challenge Solution: Localizing Language/Region-Based Customer Settings

SQL Server Magazine

May, 2007
Optimizing Queries for Fact Tables
Help a DBA devise a scheme that lets him easily optimize two queries. The indexing scheme or optimization technique that you come up with should be flexible enough to help with the queries use a table.
SQL Server Magazine

May, 2007
Localizing Language/Region-Based Customer Settings
A DBA is designing the product catalog functionality of a Web-based order placement application. Your task is to create an appropriate database object that he can use on the client or server and that
SQL Server Magazine

April, 2007
Check for Objects Created Without SET Options Enabled
Test your SQL Server savvy in this month's Reader Challenge. Submit your solution in an email message to challenge@sqlmag.com by May 10.
SQL Server Magazine

March, 2007
Change the Status of Table Items

SQL Server Magazine

February, 2007
Solution to February Reader Challenge: Check for an Empty Table

SQL Server Magazine

January, 2007
Check for an Empty Table

SQL Server Magazine

December, 2006
Converting a Hexadecimal String to a Varbinary Value

SQL Server Magazine

November, 2006
Improve T-SQL to Prevent Deadlocks

SQL Server Magazine

October, 2006
November Reader Challenge: Parse and Insert Data from Uploaded Image Files

SQL Server Magazine

September, 2006
Enforcing Uniqueness Without the Unique Constraint

SQL Server Magazine

August, 2006
Generating 6-Digit All-Numeric File Numbers for Search

SQL Server Magazine

July, 2006
Generating 6-Digit All-Numeric File Numbers for Search

SQL Server Magazine

June, 2006
Creating an Easy Query Mechanism for Gathering Customer Data

SQL Server Magazine

May, 2006
Writing Efficient Queries to Return Inventory Items

SQL Server Magazine

April, 2006
Running SQL Server 2000 Queries in SQL Server 2005

SQL Server Magazine

March, 2006
Querying Tables and Views on a Linked Server

SQL Server Magazine

February, 2006
Enforcing Restricted Uniqueness on Columns

SQL Server Magazine

January, 2006
Imposing Data Restrictions
Help Arun select, from a table with a column storing field names, only those items in the field name column containing upper or lowercase letters of the alphabet but no special characters or numbers.
SQL Server Magazine

December, 2005
Deploying a Startup Parameter on All Servers
Readers help Charlie add a new trace flag as a startup parameter on all his servers to generate a report in the event of a SQL Server deadlock
SQL Server Magazine

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