A msdb upgrade error can stop the service at the last upgrade step. The post reads the ERRORLOG, shows a read-only owner check, and walks through the four steps that fix the owner of msdb. The fix is one ALTER AUTHORIZATION statement.
SQL Agent Job Backslash Puzzle: Why Both Rows Were Deleted
A SQL Agent job backslash at the end of a comment line can turn a one row delete into a delete of the whole table. This puzzle sets up the job, explains the cause and tests the effect in T-SQL. It ends with a safe way to write the step.
Disable Resource Governor: Why RECONFIGURE Turns It On
To disable Resource Governor, run ALTER RESOURCE GOVERNOR DISABLE. The post shows why RECONFIGURE enables the feature, with a tested script that restores the state it finds. It also explains how saved pool limits come back to life.
SQL SERVER – Swap Column Values In Table
Here is a question asked to me during Comprehensive Database Performance Health Check. The question was about how to swap column values in a table.
SQL SERVER – Microsoft Official Support End Dates for Different Versions
SQL Server Support end dates belong in upgrade planning before the deadline. My original post followed the July 2019 support transition.
How to Find Definition of Computed Column in SQL Server using T-SQL? – Interview Question of the Week #233
Question: How to Find Definition of Computed Column in SQL Server using T-SQL?
Answer: A very fair question, I received the other day.
Delete Qualified Rows From Multiple Tables: A SQL Puzzle
Delete qualified rows from multiple tables with as few logical reads as you can. This puzzle gives a setup script for three small tables, the two rules for the delete and a starting script that costs 19 logical reads. Your task is to beat that number and stay correct.