User-defined Data Type Basics
This article discusses an often-overlooked feature of SQL Server called user-defined data types.
2002-12-17
8,221 reads
Don Frazier
FirstDayOfMonth() and LastDayOfMonth() functions
Here are a couple of handy date functions that pretty much describe themselves. You can use these to figure out how many days are left in a month.
2002-12-08
640 reads
zPad() - add leading zeros to a number
This user-defined function converts a number to character format and adds leading zeroes to pad the field to a specified length. useful for displaying SSNs or other numeric fields where the leading 0's are significant but the field is stored as numeric.To use:select dbo.zPad(, )make sure your length includes an extra column for the sign. […]
2002-12-05
440 reads
Convert a number to words
This is a handy function that converts a number (integer) into its word format. This might be handy if you need to print a check formatted number in words. Currently it supports an integer but it would be almost nothing to convert to support a bigint or decimal.The components are1) a table named PlaceValue that […]
2002-12-04
397 reads
PACK() user defined function
Convert a decimal number to IBM EBCDIC packed decimal format. If for some reason you need to export a number to IBM systems in native format, you can define a SQL Server field as binary(8) and Pack() your decimal number into it. Then IBM mainframes and COBOL/CICS systems can read the numbers from your data […]
2002-12-04
565 reads
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Implementing Type 4 Slowly Changing Dimensions in SQL Server
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The Disabled Index
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Server-Level Table sizes
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Question of the Day
The Disabled Index
I run this code on SQL Server 2022.
CREATE TABLE Drink
(
drinkid INT NOT NULL
CONSTRAINT DrinkPK PRIMARY KEY CLUSTERED,
drinkname VARCHAR(20),
rating NUMERIC(2, 1)
)
GO
INSERT INTO Drink
(
drinkid,
drinkname,
rating
)
VALUES
(1, 'Margarita', 4.5),
(2, 'Mojito', 4.3),
(3, 'Old Fashioned', 4.7),
(4, 'Martini', 4.4),
(5, 'Cosmopolitan', 4.2)
GO
ALTER INDEX drinkpk ON dbo.drink DISABLE
GO
SELECT * FROM dbo.Drink
GO
What is the result? See possible answers