Scaling out read queries uses replicas, caches, and routing with measured freshness and operating cost; learn when each path fits.
SQL SERVER – UDF – Validate Positive Integer Function – Validate Natural Integer Function
A Jr. DBA at my company changed my integer check so it accepts only a positive integer. I share his udf_IsNatural function with a few test values.
Designing Tables for High Insert Rates
High insert rates depend on key choice, row width, index count, and retention design; learn a practical SQL Server table layout for sustained writes.
SQL SERVER – Difference Between UPDATE and UPDATE() in Triggers
UPDATE changes rows in a table or view, while UPDATE() in triggers tells you if a column was part of an INSERT or UPDATE. Here is the difference.
Querying Active Directory From SQL Server
Querying active directory through an ADSI linked server can answer narrow questions, but its limits favor staged data for repeatable work.
SQL SERVER – 2005 – List All The Constraint of Database – Find Primary Key and Foreign Key Constraint in Database
A simple script from my archive lists all constraints from sys.objects, so you can check each foreign key and primary key constraint in database tables.
Writing T-SQL Somebody Else Can Maintain
Write maintainable T-SQL with clear names, explicit results, focused procedures, and comments that explain the business reason behind the code.