SQLServerCentral Article

Table Partitioning in SQL Server: A Practical Guide to Managing Very Large Tables (VLDBs)

Introduction When we first start working with SQL Server, most tables are small enough and we do not think much about their size. But over time, a table can collect millions or even billions of rows. For example, an online shopping application may store every order ever placed, a banking system may retain years of […]

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SQL DROP COLUMN Without Breaking Code

Adding a column is relatively easy, since the applications can just ignore it in most cases. But taking a column away can be a little bit more work, as you may have to trick the applications into believing the column is still there. I often see systems where deprecated columns have stayed around “forever” — because people are too afraid to remove them, or because they don’t have the access or capability to modify the source code of the affected applications.

SQLServerCentral Article

Packing and Decoding Device Status Codes with LEFT_SHIFT() and RIGHT_SHIFT() in SQL Server

Some systems store several small status values through a single packed integer. For example, a device integration may require tracking operating mode, alert level, and zone information as one status code rather than separate values in different columns. That creates a practical reporting problem. The packed value may be convenient for an integration format, but […]

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Table Partitioning in SQL Server: A Practical Guide to Managing Very Large Tables (VLDBs)

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Question of the Day

Too Many Choices

I have a table, dbo.MasterBrands, with this data: 

BrandID OfficialName
1       Samsung
2       Apple
3       Microsoft
4       Adidas
5       Coca-Cola
I run this query. What is returned for Coca-Cola? 
SELECT CHOOSE(BrandID, 'Conglomerate', 'Tech and Design', 'Desktop', 'Apparel')
FROM dbo.MasterBrands;

See possible answers