2025-06-02
513 reads
Date Calculations
2024-06-10
486 reads
SQL Window Functions Series: LAG() and LEAD()
Dive deep into the powerful SQL window functions, LAG() and LEAD(). Explore their intricacies, discover real-world examples, and avoid common pitfalls.
2023-12-11
9,180 reads
Combine DATE and TIME to DATETIME2 in SQL Server
The most common method on the internet for combining DATE and TIME columns in SQL Server is incorrect. This article demonstrates why that and other methods are incorrect and two lesser known high performance methods that produce correct results even for the "edge cases".
2023-08-07
23,825 reads
How to Find the Start and End Dates for the Current Week (and more)
Learn to calculate Start / First of Week, End of Week, Start of Next Week, Year, Quarter, and Month of the week, Week Numbers and more in T-SQL (Jeff Moden)
2022-07-13
33,788 reads
2020-02-27
23,401 reads
Politics makes for bad databases - plus calculate British holidays
In this piece, learn about changes in UK holidays and get a script to calculate them.
2019-07-15
3,073 reads
2019-07-04
904 reads
2019-04-18
1,472 reads
Function for Getting Interval Dates by days,months,years.
Function for Getting Interval Dates by days,months,years for particular week number, for particular month, for particular date between 1 to 31. etc...
All in One Date Interval Related Function.
2016-06-27 (first published: 2015-11-27)
1,938 reads
Blogs
Advice I Like: Ranch Rules
By Steve Jones
Leave a gate behind you the way you first found it. – from Excellent...
Fix Slow, Bloated MSDB: Purge Old History And Add Missing Indexes
By SQLPals
Fix Slow, Bloated MSDB: Purge Old History And Add Missing Indexes ...
Three Ways to Use Snowflake Data in Microsoft Fabric
By James Serra
Organizations increasingly want Snowflake and Microsoft Fabric to coexist without duplicating data or fragmenting...
Forums
25 Years of SQL Server Central
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The Decoded Value
Comments posted to this topic are about the item The Decoded Value
Deploying SQL Server Developer Edition in Kubernetes: A Cost-Effective Alternative to RDS
Comments posted to this topic are about the item Deploying SQL Server Developer Edition...
Question of the Day
The Decoded Value
In SQL Server 2025, what is returned from this code:
DECLARE @message VARCHAR(50) = 'Hello SQL Server 2025!'; DECLARE @encoded VARCHAR(MAX); SET @encoded = BASE64_ENCODE(CAST(@message AS VARBINARY(1000))); SELECT BASE64_DECODE(@encoded)See possible answers