Generating Test Data: Part 2 - Generating Sequential and Random Dates
Part two of this fantastic series from Jeff Moden looks at generating date data, something which can be handy for any number of testing purposes.
2012-04-25
8,228 reads
Jeff Moden
- Interests: SQL. When Im not having fun with that, then SQL. ;-)
Generating Test Data: Part 1 - Generating Random Integers and Floats
Learn how you can easily generate large amounts of test data efficiently in this new series from Jeff Moden. Part 1 covers integers and floating point values.
2012-03-26
11,399 reads
2011-12-27
3,238 reads
Create a Tally or Numbers Table
This creates a Tally or Numbers table which is frequently used to replace loops in code and is much faster than most loops.
2011-11-28 (first published: 2008-03-07)
6,691 reads
Hidden RBAR: Counting with Recursive CTE's
"Counting" is essential to many high performance code techniques. SQL Server MVP, Jeff Moden, shows us how to make sure that we're "Counting" and not "Crippling" our trick-code.
2011-08-08
22,379 reads
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs
In Part 1, we learned how to make both Cross-Tabs and Pivots. In Part 2, we'll learn how to automate a very common type of Cross-Tab report and maybe learn some extra tricks on the way.
2010-04-30 (first published: 2008-12-03)
51,764 reads
Passing Parameters as (almost) 1, 2, and 3 Dimensional Arrays
It's a well known fact that there's no such thing as a true "array" in SQL Server and that you can't pass a table as a parameter... but you can get a lot closer than you think.
2010-01-08 (first published: 2008-05-22)
34,075 reads
Dissecting SQL Server Execution Plans
A review of MVP Grant Fritchey's "Dissecting Execution Plans". This is one book that you'll want on your bookshelf.
2009-12-17
5,770 reads
Hidden RBAR: Triangular Joins
Just because it looks set based, doesn't mean it is. T-SQL Crackerjack Jeff Moden takes a look at a mistake that many query writers make.
2009-01-16 (first published: 2007-12-06)
60,179 reads
More RBAR and "Tuning" UPDATEs
SQL Server expert Jeff Moden discusses a common problem seen in many update statements.
2008-03-14
12,560 reads
Blogs
Retro Data 2025 – Slidedeck
You can find the slides of my session on the €100 DWH in Azure...
The Book of Redgate: We Value Teams
By Steve Jones
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Troubleshooting TempDB Log Full Errors When SSMS Won’t Connect
By gbargsley
Have you ever received the dreaded error from SQL Server that the TempDB log...
Forums
Is there a way for SP to know who called it?
Hi everyone I am writing an SP where there is logic inside the SP...
Planning for tomorrow, today - database migrations
Comments posted to this topic are about the item Planning for tomorrow, today -...
Bottlenecks on SQL Server performance
We have a BI-application that connects to input tables on a SQL Server 2022...
Question of the Day
The Tightly Linked View
I try to run this code on SQL Server 2022. All the objects exist in the database.
CREATE OR ALTER VIEW OrderShipping
AS
SELECT cl.CityNameID,
cl.CityName,
o.OrderID,
o.Customer,
o.OrderDate,
o.CustomerID,
o.cityId
FROM dbo.CityList AS cl
INNER JOIN dbo.[Order] AS o ON o.cityId = cl.CityNameID
GO
CREATE OR ALTER FUNCTION GetShipCityForOrder
(
@OrderID INT
)
RETURNS VARCHAR(50)
WITH SCHEMABINDING
AS
BEGIN
DECLARE @city VARCHAR(50);
SELECT @city = os.CityName
FROM dbo.OrderShipping AS os
WHERE os.OrderID = @OrderID;
RETURN @city;
END;
go
What is the result? See possible answers