This script will automatically determine whether a rebuild or a reorganize should be used according to the fragmentation of the index. It will then execute the appropriate command. Note that performing index rebuilds online during production hours will cause contention. SET NOCOUNT ON; DECLARE @objectid int; DECLARE @indexid int; DECLARE @partitioncount bigint; DECLARE @schemaname nvarchar(258); [...]
Archive of posts filed under the Maintenance category.
How to Update Statistics
There are two ways to update statistics. The first way is the easy way. It is one line of code that will update all the statistics in the database using the default sample size of 20,000 rows per table. EXEC sp_updatestats The other way, is to use the UPDATE STATISTICS command. This command gives much [...]
Query Which Tables are Partitioned
List out which tables are partitioned, and what partition scheme and partition function they use: select t.name as TableName, ps.name as PartitionScheme, ps.data_space_id, pf.name as PartitionFunction, pf.function_id from sys.tables t join sys.indexes i on t.object_id = i.object_id join sys.partition_schemes ps on i.data_space_id = ps.data_space_id join sys.partition_functions pf on ps.function_id = pf.function_id where i.index_id < 2 [...]
Reindex All Tables in a Database
Code for reindexing all tables in a database using dbreindex
Find Table Fragmentation
DECLARE @Database VARCHAR(255) DECLARE @TableName VARCHAR(255) DECLARE @IndexName VARCHAR(255) SET @Database = ‘SQLServerPlanet’ SET @TableName = ‘Users’ SET @IndexName = NULL SELECT avg_fragmentation_in_percent ,page_count FROM sys.dm_db_index_physical_stats ( DB_ID(@Database) ,OBJECT_ID(@TableName) ,OBJECT_ID(@IndexName) ,NULL ,NULL ) Or you can still do it the old fashioned way. Just substitute the name of the table or index below. It should [...]
