Get Index Fragmentation Levels SQL Server

get-index-fragmentation.sql

-- Script to retrieve index fragmentation levels in SQL Server
-- This script will list fragmented indexes in the database, showing table name, index name, fragmentation percentage, and more
SELECT 
    OBJECT_NAME(s.OBJECT_ID) AS TableName,  -- Table name where the index is located
    i.name AS IndexName,                    -- Name of the index
    ROUND(s.avg_fragmentation_in_percent, 2) AS FragmentationPercentage,  -- Fragmentation percentage rounded to 2 decimal places
    s.page_count AS PageCount,              -- Number of pages used by the index
    i.type_desc AS IndexType,               -- Type of the index (Clustered, Nonclustered, etc.)
    s.stats_id AS StatsID                   -- Statistics ID for the index
FROM 
    sys.dm_db_index_physical_stats (DB_ID(), NULL, NULL, NULL, 'DETAILED') AS s
JOIN 
    sys.indexes AS i
ON 
    s.OBJECT_ID = i.OBJECT_ID AND s.index_id = i.index_id
WHERE 
    i.type_desc IN ('CLUSTERED', 'NONCLUSTERED')
ORDER BY 
    s.avg_fragmentation_in_percent DESC;