Viser opslag med etiketten SQL Server. Vis alle opslag
Viser opslag med etiketten SQL Server. Vis alle opslag

fredag den 26. oktober 2012

Are your SQL Server Queries slow?

Run this query to see if any of your indexes needs a rebuild or reorganize:
(linked back from this site: http://weblogs.asp.net/okloeten/archive/2009/01/05/6819737.aspx)

SELECT 'ALTER INDEX [' + ix.name + '] ON [' + s.name + '].[' + t.name + '] ' +
       CASE WHEN ps.avg_fragmentation_in_percent > 40 THEN 'REBUILD' ELSE 'REORGANIZE' END +
       CASE WHEN pc.partition_count > 1 THEN ' PARTITION = ' + cast(ps.partition_number as nvarchar(max)) ELSE '' END
FROM   sys.indexes AS ix INNER JOIN sys.tables t
           ON t.object_id = ix.object_id
       INNER JOIN sys.schemas s
           ON t.schema_id = s.schema_id
       INNER JOIN (SELECT object_id, index_id, avg_fragmentation_in_percent, partition_number
                   FROM sys.dm_db_index_physical_stats (DB_ID(), NULL, NULL, NULL, NULL)) ps
           ON t.object_id = ps.object_id AND ix.index_id = ps.index_id
       INNER JOIN (SELECT object_id, index_id, COUNT(DISTINCT partition_number) AS partition_count
                   FROM sys.partitions
                   GROUP BY object_id, index_id) pc
           ON t.object_id = pc.object_id AND ix.index_id = pc.index_id
WHERE  ps.avg_fragmentation_in_percent > 10 AND
       ix.name IS NOT NULL

onsdag den 3. oktober 2012

SQL Server Bulk Insert

How to insert bulk data into a SQL Server Table from a CSV file:


BULK
INSERT TugLookup
FROM 'c:\temp\tuglookup.csv'
WITH
(
FIELDTERMINATOR = ';',
ROWTERMINATOR = '\n'
)
GO
--Check the content of the table.
SELECT *
FROM TugLookup
GO