SQL server – ISNUMERIC and checking for valid numeric tyopes
During a large ETL process from a staging table , UPDATE was creating an error on a CONVERT.
Msg 245, Sev 16,...
2012-01-30
1,074 reads
- Interests: Performance Tuning Database Servers, Running and Coffee
SQL Server - Generate SQL INSERT from Excel
Generate SQL Server INSERT statements with Excel Concatenate.
A developer requested access to a Production database. The details were to COPY...
2012-01-27
1,074 reads
SQL Server – Error Logs recycle without SQL Server Restart
If some long running error situation , the Error Log can become very big. In those situations , it can be time-consuming...
2012-01-26
732 reads
SQL Server - BACKUP LOG WITH NO_LOG
The BACKUP LOG WITH NO_LOG and WITH TRUNCATE_ONLY options are discontinued in SQL Server 2008.
There is no replacement for this...
2012-01-22
2,789 reads
SQL Server – Modifying Production Data Good Practise
Q. “I need to modify Production Data directly on a Production database. What are some steps I can follow to...
2012-01-21
1,011 reads
SQL Cachestore flush
For each cleared cachestore in the plan cache SQL Server reports a message in the error logs , such as :
SQL...
2012-01-20
1,183 reads
SQL Server – Powershell Excel to HTML
SQL Server, Powershell and Excel are a good mix . But saving to Powershell output to HTML is versatile – if requiring...
2012-01-19
861 reads
SQL Performance Tuning - optimizing for response time
Different queries are optimized for different objectives
Response Times and Throughput are two standard objectives.
Response Time is about retrieving the hits...
2012-01-18
846 reads
Hungarian Notation is misunderstood
Hungarian notation refers to a identifier naming convention. The variable indicates the variables use – as opposed to what they are....
2012-01-17
998 reads
SQL Agent Jobs – Schedule in seconds
1) How can I execute a SQL Server Agent Job every few seconds? Administrators try to use SQL Server Agent as...
2012-01-16
1,821 reads
Blogs
Automated SQL Server Benchmarking with HammerDB and Docker: A Complete Testing Framework
I’m excited to announce the release of a new open-source project that fully automates...
T-SQL Snapshot Backups on Availability Group Secondary Replicas
One of my favourite features of SQL Server 2022 was the T-SQL Snapshot Backups....
The Book of Redgate: Hours
By Steve Jones
I have said and written this many times: Redgate Software is the type of...
Forums
Kontak Bank BCA KCP Purwosari [083178278662]
Alamat BCA KCP Purwosari WHATSAPP:083178278662 Solo Center Point, Ruko No. A11 & A12, Sondakan,...
Alamat Bank BCA KCP Palur [083178278662]
WHATSAPP:083178278662 Jl. Raya Palur No.Km 5, Jurug, Ngringo, Kec. Jaten, Kabupaten Karanganyar, Jawa Tengah...
Question of the Day
ORDER BY alias
There is a table tmp_tab:
CREATE TABLE tmp_tab ( id int, val int );
INSERT INTO tmp_tab VALUES (1, 1), (2, NULL), (3, 3), (4, 4), (5, 5);You want to order the rows ids by the following expression:
ISNULL(val, id) + 1Which of the following queries produces the expected ordering and why? (Select all correct) See possible answers