One query to find the First and Last Day of Current Month in SQL Server, plus the last day of the previous month and the first day of the next.
How the Main System Views Connect
Learn how the main system views connect through object_id, schema_id, index_id, and column_id so catalog joins stay accurate.
Estimating How Much Memory SQL Server Needs
How much memory SQL Server needs depends on the active working set, grants, and host headroom; learn to measure pressure and avoid fixed ratios.
Data Types That Waste Space
Data types that waste space include oversized integers, blanket nvarchar(max), and unnecessary datetime2 precision; measure before changing.
REGEXP_LIKE in SQL Server 2025: Validating Codes, Emails and Phone Numbers
Validate codes, email shapes and phone numbers with REGEXP_LIKE in SQL Server 2025, using clear patterns and CHECK constraints.






