Find Unused Nonclustered Indexes in SQL Server This script queries sys.dm_db_index_usage_stats to identify nonclustered indexes that have never been used by any read operation since the last SQL Server restart, yet still carry write overhead with every INSERT, UPDATE, and DELETE on the table. Purpose and Overview Every …
Read MoreBlocking happens when one session holds a lock that another session needs, so the second session waits. The query below lists every request that is waiting on another session right now: who is blocked, who is blocking, the wait type and wait time, the database, and the SQL text on both sides. Purpose and Overview The …
Read MoreSQL Server Missing Indexes Report: dm_db_missing_index
Feb 28, 2026 / · 6 min read · sql server missing indexes performance dm db missing index details dm db missing index group stats index tuning dba scripts query optimization sys.dm_db_index_usage_stats sys.dm_db_missing_index_details sys.dm_db_missing_index_group_stats sys.dm_db_missing_index_groups sys.index_columns sys.indexes ·SQL Server tracks index recommendations automatically as queries execute, storing them in the missing index DMVs. This T-SQL script queries those views to produce a ranked report of missing indexes, ordered by the estimated improvement they would provide, along with a ready-to-run CREATE INDEX statement for each …
Read MoreSQL Server Wait Statistics Report: dm_os_wait_stats
This T-SQL script reads sys.dm_os_wait_stats, removes the wait types that only record idle background threads, and ranks what is left by its share of the remaining wait time. The top rows show which resource the instance has spent the most time waiting for since the engine started or the counters were last reset. …
Read Moresp_pkeys: SQL Server Primary Key Discovery Script
Aug 9, 2025 / · 3 min read · sql server primary keys database administration scripts sysobjects sp_pkeys dynamic sql sysobjects sys.tables sys.key_constraints INFORMATION_SCHEMA.TABLE_CONSTRAINTS ·SQL Server Primary Key Discovery Script Using sp_pkeys and sysobjects Purpose This SQL Server script generates dynamic SQL statements that can be executed to discover primary keys across all user tables in a database. It's a powerful administrative tool that helps database administrators quickly identify primary key …
Read MoreSQL Server: Find Tables with Clustered Indexes for Rebuild
SQL Server Query to Identify Tables with Clustered Indexes for Rebuilding Database administrators frequently need to perform maintenance operations on clustered indexes to optimize database performance. This SQL Server query provides a quick and efficient way to identify all user tables that contain clustered indexes, …
Read MoreSQL Server Object Permissions: Generate GRANT Statements
Aug 8, 2025 / · 5 min read · sql server database security permissions grant statements database administration sql scripts security database objects sysobjects sys.objects ·SQL Server Object-Level Permissions Script: Generate GRANT Statements for Database Security Database security is a critical aspect of SQL Server administration, and managing permissions at the object level can be time-consuming when done manually. This SQL Server script automates the process of generating GRANT …
Read MoreGenerate sp_spaceused Commands for All User Tables in T-SQL
Checking how much space every table in a database uses means running sp_spaceused once per table, and typing those calls by hand stops being practical after a dozen tables. This one-line query reads the object catalog and writes the sp_spaceused call for every user table, so the whole set can be pasted into a query …
Read MoreSQL Server UPDATE STATISTICS and SELECT Dynamic Scripts
Aug 6, 2025 / · 4 min read · sql server database administration t-sql performance tuning dynamic sql database maintenance statistics automation sysobjects update statistics sys.tables ·SQL Server Dynamic Update Statistics and Select Scripts for Database Maintenance Purpose These SQL Server scripts are designed to automatically generate database maintenance commands by dynamically creating UPDATE STATISTICS statements and SELECT queries for all user tables in a database. This approach is particularly …
Read MoreSQL Server DBCC DBREINDEX with Timing: Index Maintenance
Aug 5, 2025 / · 4 min read · sql server database maintenance performance tuning dbcc commands index optimization dba scripts database administration sql scripts DBCC DBREINDEX sysobjects ·SQL Server DBCC DBREINDEX Script with Timing - Database Maintenance Guide Database maintenance is a critical aspect of SQL Server administration, and index rebuilding plays a vital role in maintaining optimal database performance. This comprehensive guide explores powerful DBCC DBREINDEX scripts that include timing …
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