To prevent index changes in one database, create a DDL trigger on the index events that rolls back the statement and says why. This post tests the trigger, shows what it blocks, and lists the index changes that slip past it.
SQL SERVER – Trigger on Database to Prevent Table Creation
A Trigger on Database scope can reject CREATE_TABLE events. A customer required this rule, though I preferred ordinary permissions.
Reading the Connectivity Ring Buffer for Dropped Connections
The error log says nothing, but the connectivity ring buffer may remember. Here is how to read it and what it cannot tell you.
Size and Rows of Each Table in SQL Server, Indexes Included
To list the size and rows of each table, add up the pages from sys.dm_db_partition_stats and split them into data, index and unused space. This post shows three traps in the common join query and checks the corrected result against sp_spaceused.
Free Space in Database Files: Check Data and Log Files
To see the free space in database files, compare each file’s size with the pages it uses. This post gives one query for data and log files, adds the free space on the drive, and checks the log figure against a second source.
SQL SERVER – Rename View
When I rename view objects, I inspect references and retained definitions first. SSMS and sp_rename both need dependency planning.
MySQL Performance – Five Configuration Topics with Version Limits
A MySQL Config File needs settings matched to its server version and workload. I measure pressure before changing a parameter.