SQL Server Script to Rebuild/Reorganize Fragmented Indexes When on a database’s table frequently running INSERT, UPDATE or DELETE queries than we can see indexes on the particular table gets fragmented and the SQL query may run slower as they may choose the non-optimal execution plan. Most of the people asking about Does SQL Server rebuild index automatically or any rebuild criteria? But Rebuilding/Reorganize of fragmented Indexes not supported automatically because rebuilding the indexes is expansive operation so be careful to schedule rebuilding via SQL Server Agent. But hare we are adopting an approach to rebuild or Reorganize only the necessary Indexes instead of all index rebuild, As a general recommendation, the index needs to rebuild that gets fragment percentage more than 30% and reorganize the index that has fragment percentage greater than 10% and less than 30%. The below script rebuilding index one by one, so it won’t be an expansive operation on the production database. --- Rebuild/Reorganize Indexes CREATE TABLE #IndexRebuild ( DatabaseName SYSNAME, SchemaName SYSNAME, TableName SYSNAME, IndexName SYSNAME, [Fragmentation%] FLOAT ) INSERT INTO #IndexRebuild SELECT DB_NAME(DB_ID()) AS DatabaseName, ss.name AS SchemaName, OBJECT_NAME (s.object_id) AS TableName, i.name AS IndexName, s.avg_fragmentation_in_percent AS [Fragmentation%] FROM sys.dm_db_index_physical_stats(db_id(),NULL, NULL, NULL, 'SAMPLED') s INNER JOIN sys.indexes i ON s.[object_id] = i.[object_id] AND s.index_id = i.index_id INNER JOIN sys.objects o ON s.object_id = o.object_id INNER JOIN sys.schemas ss ON ss.[schema_id] = o.[schema_id] WHERE s.database_id = DB_ID() AND i.index_id != 0 AND s.record_count > 0 AND o.is_ms_shipped = 0 AND s.avg_fragmentation_in_percent > 10 DECLARE @RebuildSQL NVARCHAR(MAX) SET @RebuildSQL = '' SELECT @RebuildSQL = @RebuildSQL + CASE WHEN [Fragmentation%] > 30 THEN CHAR(10) + 'ALTER INDEX ' + QUOTENAME(IndexName) + ' ON ' + QUOTENAME(SchemaName) + '.' + QUOTENAME(TableName) + ' REBUILD;' WHEN [Fragmentation%] > 10 THEN CHAR(10) + 'ALTER INDEX ' + QUOTENAME(IndexName) + ' ON ' + QUOTENAME(SchemaName) + '.' + QUOTENAME(TableName) + ' REORGANIZE;' END FROM #IndexRebuild WHERE [Fragmentation%] > 10 DECLARE @StartOffset INT DECLARE @Length INT SET @StartOffset = 0 SET @Length = 4000 WHILE (@StartOffset < LEN(@RebuildSQL)) BEGIN PRINT SUBSTRING(@RebuildSQL, @StartOffset, @Length) SET @StartOffset = @StartOffset + @Length END PRINT SUBSTRING(@RebuildSQL, @StartOffset, @Length) EXECUTE sp_executesql @RebuildSQL DROP TABLE #IndexRebuild The scripts will work like a charm, You can create a stored procedure and can call the stored procedure via the SQL Server agent or via windows task scheduler.

Why is the TRIM function not removing the trailing and leading spaces in the non-english text?

pradeepkumarjse

I am trying to check if both databases have different values, then show else not.

The target db has the same value but with leading spaces, yet I want it to remove the spaces and consider it the same, but still it's showing me that it's different. Why?

Use TargetTestingDb

SELECT TRIM(ISNULL(Name,'')) Name
                ,TRIM(ISNULL(cs.ContinentName,'')) ContinentName
                ,DisplayOrder
                ,GroupName
            FROM TestingDb.dbo.Country cs
            WHERE NOT EXISTS (
                    SELECT 1
                    FROM Country ct
                    WHERE TRIM(ISNULL( N'?????', '')) = TRIM(ISNULL(ct.ContinentName, ''))
                        AND TRIM(ISNULL(cs.Name, '')) = TRIM(ISNULL(ct.Name, ''))
                    )

the text is in Arabic i.e. N'?????

But when I remove spaces from ct.ContinentName then it starts working.

Note: for convenience, I have replaced the column name with the Arabic value.

Target table in TargetTestingDb

Id  ContinentName   Name    
216 ?????               ?????

Source table TestingDb

Id  ContinentName   Name
218 ?????            ?????

TargetTestingDb country has a space in it. That's fine

But still my query is showing it as if it doesn't exist.

Update:

Datatype is nvarchar(max)

Update:

tried it's working for trailing but not leading spaces

SELECT ct.ContinentName, TRIM(ISNULL(ct.ContinentName, '')) FROM Country ct WHERE TRIM(ISNULL( ct.ContinentName, '')) = TRIM(ISNULL(N'????? ', ''))

but then i remove this spaces from ????? it works.