sqlexpert

Interested in Haskell, Idris, Agda, F#, Scala, Clojure

Technical Article

LongestRunningQueries.vbs

This SQL 2005-only VBS script will show the longest-running queries on a given server, complete with graphical .sqlplan when clicked. Results go to a web page, viewed from the local machines's temp directory.Each row of the resulting table has the session ID, the currently running statement of the batch, a link to a text file […]

(1)

You rated this post out of 5. Change rating

2007-07-24 (first published: )

375 reads

Technical Article

faster dbo.ufn_vbintohexstr - varbinary to hex

Here's an alternative to Clinton Herring's ufn_vbintohexstr which should be much faster with large varbinary values. First, in his original version, the inner-loop CASE statements can be replaced with this: select @value = @value + CHAR(@vbin/16+48+(@vbin+96)/256*7) +CHAR(@vbin&15+48+((@vbin&15)+6)/16*7) How does it work? By adding 6 to a hex-digit in (@vbin&15), you have a value from 16 […]

You rated this post out of 5. Change rating

2006-12-20 (first published: )

130 reads

Technical Article

BASE64 Encode and Decode in T-SQL - optimized

This is just an optimized version of Daniel Payne's two scripts, base64_encode and base64_decode, with changes to end-of-block handling and a bug fix or two. If the encoded string ends in =, the last character is truncated. If ending in ==, two characters are chopped off. That seems better than replacing NUL characters with spaces, […]

(5)

You rated this post out of 5. Change rating

2006-12-18 (first published: )

7,694 reads

Technical Article

HexToInt

Challenged by Hans Lindgren's stored procedures of the same name, I created this. Note that it produces strange results on non-hexadecimal strings, overflows at 0x80000000, and could have issues with byte-ordering on some architectures.How does it work? Well, the distance between one after '9' (':') and 'A' is 7 in ASCII. Also, if I subtract […]

You rated this post out of 5. Change rating

2006-12-15 (first published: )

217 reads

Technical Article

HexToSmallInt

Hans asked if it could be faster. This is about 10% faster; not much. His is admittedly more readable, and mine will act very strangely with invalid hex digits.How does it work? I'm converting the string '1234' to the value 0x31323334 (for example), then subtracting '0000' so that it is 0-based in each byte (CONVERT(INT,0x30303030) […]

You rated this post out of 5. Change rating

2005-05-16 (first published: )

147 reads

Blogs

Git forked

By

Forgive me for the title. Mentally I’m 12. When I started my current day...

Setting FK Constraints in Data Modeler

By

One of the things a customer asked recently about Redgate Data Modeler was how...

Webinar: Navigating the Database Landscape in 2026

By

For a number of years, we’ve produced the State of the Database Landscape report,...

Read the latest Blogs

Forums

SSMS 22 Latest Update Crashing

By Phil Parkin

Hi all, I've just had to roll back my SSMS 22 version from 22.3.0,...

Transactional Replication setup issue

By DrAzure

Hi! I've been banging my head against the wall for 2 days now trying...

The Power of Data and Privacy

By Steve Jones - SSC Editor

Comments posted to this topic are about the item The Power of Data and...

Visit the forum

Question of the Day

What's the Date?

In SQL Server 2025, there is a new function that returns the current date without the time. What is it?

See possible answers