A DMV query that grinds to five or ten minutes against a large plan cache is a real failure mode, not a hypothetical one — joining sys.dm_exec_query_stats to sys.dm_exec_sql_text row by row scales badly once the cache holds enough plans. sys.dm_exec_procedure_stats exists to sidestep exactly that cost: one row per …
Read MoreA stored procedure that returned in 20 milliseconds yesterday is timing out today, and nothing in the code changed. Indexes are intact and statistics look current, yet the query now takes a different, slower path. One cause worth checking is a cached plan that was compiled for an unrepresentative set of parameter …
Read MoreDBCC DBREINDEX vs ALTER INDEX REBUILD in SQL Server
Open the SQL Agent job history on an instance that has been running for a decade and you will still find DBCC DBREINDEX in a nightly maintenance step, quietly doing its job. It works — which is exactly why nobody has touched it. But it has been deprecated for the better part of twenty years, it locks tables it does not …
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 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 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 …
Read MoreDBCC DBREINDEX: SQL Server Index Rebuild Script
Aug 4, 2025 / · 5 min read · sql server database maintenance indexing performance tuning automation dbcc commands database administration optimization DBCC DBREINDEX sysobjects ·SQL Server DBCC DBREINDEX Script Generator for Database Maintenance Database maintenance is crucial for optimal SQL Server performance, and one of the most important tasks is maintaining database indexes. The DBCC DBREINDEX command is a powerful tool for rebuilding indexes, but manually running it on every table can be …
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