The DBAs Joke of the Day: Which RDBMS Was that You Say?
So someone walks in from another department and asks about hosting some new high volume, huge database that pushes data...
2010-09-01
623 reads
Blog Posts
Using WITH NOLOCK
A colleague of mine and I were recently talking about some scripts that they had seen containing the WITH NOLOCK...
2010-09-01
545 reads
A PASSionate Community
Much has voiced about the Professional Association for SQL Server (PASS) Nominating Committee’s decision to not put Steve Jones (blog,...
2010-08-31
1,552 reads
Come and gone
Or “Plan cache monitoring – insert and remove”
Previously I took a look at the CacheHit and CacheMiss events to see how...
2010-08-31
1,814 reads
Determining the no of processor cores in your SQL Server
SELECT cpu_count/hyperthread_ratio AS cores FROM sys.dm_os_sys_info;
2010-08-31
1,675 reads
Does Join Order Matter?
According to Conor Cunningham, it doesn’t.
I have heard that there are issues in the optimizer, and to be sure, there...
2010-08-31
1,831 reads
How to fix Orphaned Users
To view if there are any orphaned users, run this query against the DB;
sp_change_users_login ‘report’
To fix;
sp_change_users_login ‘update_one’, ‘dbUser’, ‘sqlLogin’
2010-08-31
1,888 reads
Interview with SQL Server MVP Glenn Berry
This is a first of a series of interviews with speakers presenting at the SQLServerCentral.com track at SQL Server Connections...
2010-08-31
2,506 reads
Maintenance Plan "No description found" error
for Sql server 2005, It was a bug when you modify maintainance plan you may get the error “no description...
2010-08-31
2,769 reads
Positioning SQLRally in the PASS Event Universe
Prior to creating SQLRally the world of PASS consisted of the PASS Summit which is our annual mega-event, the European...
2010-08-31
1,832 reads
Blogs
Automatic Index Compaction
By ReviewMyDB
Index maintenance has always meant nightly jobs and a window you have to defend....
The Goldilocks problem – Materialized Views
I’m sure you’ve all heard the tale of Goldilocks and the Three Bears, but...
Monday Monitor Tips: Virtual Machine Usage and Cost
By Steve Jones
One of the things I’ve been requesting for a number of years is cost...
Forums
SQL Art, Part 4: Happy 4th of July — A British DBA's Guide to Celebrating a War We Don't Talk About
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
How We Handled a Vendor Retry That Loaded Twice in Snowflake
Comments posted to this topic are about the item How We Handled a Vendor...
Cognitive Coverage
Comments posted to this topic are about the item Cognitive Coverage
Question of the Day
Getting the Average
I have this data in the dbo.Commission table in a SQL Server 2022 database.
salesperson commission Brian 12 Brian 16 Andy 7 Andy 14 Andy 21 Steve 20 Steve NULLAll the data is a varchar, and I decide to run this query to get the totals for each salesperson.
SELECT SalesPerson
, AVG(TRY_PARSE(Commission AS int)) AS TotalCommission
FROM commission
GROUP BY SalesPerson
GO
What average commission is calculated for Steve? See possible answers