Create automate_index_rebuild.sql

Author: HannahIgboke

sql-queries-index/index-rebuild/automate_index_rebuild.sql

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+DECLARE @TableName NVARCHAR(255), @IndexName NVARCHAR(255), @SQL NVARCHAR(MAX); 
+DECLARE frag_cursor CURSOR FOR 
+
+SELECT QUOTENAME(SCHEMA_NAME(t.schema_id)) + '.' + QUOTENAME(t.name), 
+       QUOTENAME(i.name) 
+FROM 
+  sys.dm_db_index_physical_stats(DB_ID(), NULL, NULL, NULL, 'LIMITED') AS ps 
+INNER JOIN sys.indexes i ON ps.object_id = i.object_id AND ps.index_id = i.index_id 
+INNER JOIN sys.tables t ON i.object_id = t.object_id 
+WHERE ps.avg_fragmentation_in_percent > 30 AND i.type_desc IN ('CLUSTERED', 'NONCLUSTERED'); 
+
+OPEN frag_cursor; 
+FETCH NEXT FROM frag_cursor INTO @TableName, @IndexName; 
+
+WHILE @@FETCH_STATUS = 0 
+BEGIN 
+  SET @SQL = 'ALTER INDEX ' + @IndexName + ' ON ' + @TableName + ' REBUILD;'; 
+  PRINT 'Rebuilding index: ' + @IndexName + ' on ' + @TableName; 
+  EXEC sp_executesql @SQL; 
+  FETCH NEXT FROM frag_cursor INTO @TableName, @IndexName; 
+END; 
+
+CLOSE frag_cursor; 
+DEALLOCATE frag_cursor;