Development Lifecycle Deployment SSAS, SSRS, SSIS
Many companies have a very rigid development lifecycle for all products or solutions they develop. Deploying to each of these...
SQL Server Lazy Writer Issue: Warning, No Free Buffers Found
This tip is intended to help someone who is or will be facing a no free buffer found issue with the SQL Server LazyWriter. Recently, we experienced some unknown issues with our SQL Server and after inspecting the error log file we noticed the following errors: "SQL Server has encountered 50 occurrence(s) of I/O requests taking longer than 15 seconds to complete on file..." and "LazyWriter: warning, no free buffers found." These error messages were followed by a SQL Server memory dump file like SQLDump0030.mdmp in the file system.
The T-SQL Hammer
The over-reliance on a familiar tool is best described with the quote, “if all you have is hammer, everything looks...
Cleaning Up Garbage from Data
Cleaning up garbage from data can be a big problem for a developer.Check out a simple solution from Shubhajyoti Ghosh to cleaning up garbage from data.
FizzBuzz
Can most programmers not program? A new test, the FizzBuzz test, is being used to weed out candidates. Steve Jones comments on the types of FizzBuzz questions he's used in T-SQL.
Oracle: Overhaul or Overkill?
Vendor-specific hardware might make Oracle less painful to use in the future, so Chris Massey considers whether Microsoft should consider providing a more tailored and complete product with SQL Server. The verdict? "Not necessary".
SSIS 2008 Script Component variable gotcha..
In a previous post I showed you how to access variables from within an SSIS script component. More specifically I...
Tips for Simplifying Crosstab Query Statements
Rob Gravelle takes a complex SQL statement and shows you several ways to re-write it that both simplifies and shortens it, while still yielding the same results.
TSQL Challenge 24 - Find discrepancies in the scheduled activities and actual activities performed by employees
This is a problem that I had seen in one of the forums many years back. This problem is related to a reporting requirement from the data stored by a 'poorly designed' system.
Blogs
AI Helps Me with My Sloppiness
By Steve Jones
I type fairly well. Well, I type fast, but I do wear out a...
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...
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