Stable weekday numbers use a fixed Monday anchor and negative-safe modulo. Map Monday to one without changing DATEFIRST or session language.
Generating Backup Commands for Every Database With STRING_AGG
Use STRING_AGG for generating backup commands with copy-only backups, checksums, safe database names, and dated files for careful review.
SQL Server Tips: Temporary Tables, Constraints and Agent
Temporary tables, constraints and SQL Server Agent each solve a different problem. Choose an appropriate temporary-table scope, use declarative rules for data integrity and give scheduled jobs clear ownership and failure handling.
sp_refreshsqlmodule: Refreshing Views and Procedures After a Table Change
Use sp_refreshsqlmodule to refresh changed table dependencies, inspect stale view columns, and protect stable contracts with schema binding.
Year-to-Date Totals Next to the Same Period Last Year
A fair year-to-date comparison needs the same dates from last year. Here is a short query, plus the leap day trap.
Splitting a URL Into Host, Path and Query String in T-SQL
Practice splitting a URL into host, path, and query values with T-SQL string functions, SQL Server 2025 regex, and ordered parameter rows.
Named Instances and Default Instances
Named instances and default instances differ in connection strings, ports, SQL Browser discovery, and the operations each one needs.