SQL Server provides two commonly used functions, ISNULL and COALESCE, to address this requirement. Difference Between ISNULL and COALESCE
SQL SERVER – Count Occurrences of a Specific Value in a Column
Here is the exact question – How to Count Occurrences of a Specific Value in a Column? Well, honestly, the answer is very simple.
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Query Store Wait Stats: Why a Query Was Slow, Not Just That It Was
Read Query Store wait stats by query, plan, interval, and category, then compare matched windows with execution counts and capture coverage.
Data Quality Asserts in T-SQL: Failing a Load When Rules Break
Write data quality asserts in T-SQL to reject invalid staging rows, preserve check results, and record each load attempt.
Chatty Applications: Finding Many Tiny Queries per Second
Diagnose chatty applications with batch rates, cached executions, bounded session event counts, and measured round trips per user action.
Column-Level Permissions: Hiding One Column From Some Users
Apply SQL Server column-level permissions, test DENY and SELECT behavior, inspect explicit grants, and compare views with data masking.