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 […]
2007-07-24 (first published: 2006-10-30)
375 reads
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 […]
2006-12-20 (first published: 2005-05-07)
132 reads
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, […]
2006-12-18 (first published: 2005-06-04)
7,699 reads
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 […]
2006-12-15 (first published: 2005-05-04)
219 reads
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) […]
2005-05-16 (first published: 2005-05-04)
149 reads
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Comments posted to this topic are about the item Not Just an Upgrade
I am doing development work on a database and want to keep a backup so I can reset my database. I make some changes and want to restore over top of my changes. When I run this code, what happens?
USE Master BACKUP DATABASE DNRTest TO DISK = 'dnrtest.bak' GO USE DNRTest GO CREATE TABLE MyTest(myid INT) GO USE master RESTORE DATABASE DNRTest FROM DISK = 'dnrtest.bak' WITH REPLACESee possible answers