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Problem

When running a report or opening a form/window, data is slow to appear.

Solution

Following are some general suggestions for addressing general database performance tuning.

Database Indexes

Databases use indexes on tables to locate data quickly.  If there are large changes in data or volumes of data over time - or if the database is moved to another SQL Server, maintenance may be required on the indexes. 

DECLARE @TableName VARCHAR(255)
DECLARE @sql NVARCHAR(500)

DECLARE TableCursor CURSOR FOR
SELECT OBJECT_SCHEMA_NAME([object_id])+'.['+ name +']' AS TableName
FROM sys.tables

OPEN TableCursor
FETCH NEXT FROM TableCursor INTO @TableName
WHILE @@FETCH_STATUS = 0
BEGIN
	SET @sql = 'ALTER INDEX ALL ON ' + @TableName + ' REBUILD'
print (@sql)
	EXEC (@sql)
	FETCH NEXT FROM TableCursor INTO @TableName
END
CLOSE TableCursor
DEALLOCATE TableCursor
GO

Table Statistics

SQL server keeps statistics on the best strategy to use for queries - which indexes to use and when to use a table scan. This is constantly updated and sometimes will need to be rebuilt if the environment changes significantly or the data changes significantly in a short time frame.

Jiwa comes with a stored procedure to rebuild statistics for all tables - run the following query to run this stored procedure.

update_all_stats

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