geometry STBoundary returns the edge of a shape as another geometry instance. I inspect that result independently from the source. A polygon’s boundary is not another filled polygon with the same area.
SQL SERVER – Two Methods to Retrieve List of Primary Keys and Foreign Keys of Database
There are two different methods to retrieve the list of Primary Keys and Foreign Keys from the database.
SQL SERVER – Restore Sequence and Understanding NORECOVERY and RECOVERY
What is the difference between NORECOVERY and RECOVERY when restoring a database, and what is the right restore sequence? A plain explanation of both.
SQL SERVER – Backup Timeline and Understanding of Database Restore Process in Full Recovery Model
A backup timeline for the full recovery model: full, differential and log backups, and how to restore them in the right order. Plus a real DBA story.
Decimal Multiplication: Precision Can Reduce the Result Scale
Decimal Multiplication derives a result type from its operand types, and the precision limit can reduce the scale. I inspect three small products. A small numeric value does not necessarily imply a narrowly declared arithmetic result.
Columns With No Statistics: Read Each Warning
A columns-with-no-statistics warning needs a column-by-column investigation. Compare warning lists before and after targeted statistics creation, and check the actual query behavior before deciding that a missing statistic caused poor performance.
Auditing Who Changed What, and When
Plan SQL Server auditing around the question you need answered, then distinguish security events from row history, change tracking, and CDC.