From SQL to DAX: Joining Tables - SQLBI

Comments

Post a Comment

Popular posts from this blog

SSRS Report Design: Best Practices

Introduction Microsoft® SQL Server™ Reporting Services is a comprehensive reporting tool. In using Reporting Services, you can design and deliver a wide range of reports, from simple tables to online free-form reports with graphical items and interactive links. Reporting Services can render reports for a variety of client-viewing formats, including HTML, PDF, Excel, and image formats. The wide variety of options and choices can be problematic for report authors who must make numerous decisions when choosing how to lay out a report. This paper provides a few guidelines to make these decisions easier and answers common questions.
Read more

To improve MDX Query performance use NonEmpty Function and use filter instead of IIF( IS NULL)

To improve MDX Query performance use NonEmpty Function and use filter instead of IIF( IS NULL) Function and  in Calculated measure WITH MEMBER [TEST1] AS SUM(LastPeriods(12,[dimTimeDimension].[Month].&[2009]&[12]), [Measures].[Gross Written Premium]) MEMBER [TEST2] AS SUM(LastPeriods(12,[dimTimeDimension].[Month].&[2008]&[12]), [Measures].[Gross Written Premium]) MEMBER [TEST3] AS SUM(LastPeriods(12,[dimTimeDimension].[Month].&[2007]&[12]), [Measures].[Gross Written Premium]) MEMBER [TEST4] AS SUM(LastPeriods(12,[dimTimeDimension].[Month].&[2006]&[12]), [Measures].[Gross Written Premium]) MEMBER [TEST5] AS SUM(LastPeriods(12,[dimTimeDimension].[Month].&[2005]&[12]), [Measures].[Gross Written Premium]) MEMBER [R12 LR] AS ([Measures].[R12 Claims Incurred WO IBNR] / [Measures].[R12 Gross Earned Premium ]) select { [Measures].[R12 LR] } ON COLUMNS , TOPCOUNT(filter(NONEMPTY( [dimCustomerDimension].[Full Name].children * [dimChannelD...
Read more

Enable Usage-Based Optimization in SSAS

Usage-Based Optimization is a fantastic feature in SSAS to improve the most frequently used MDX queries of any cube database. This feature is used to design aggregations based on actual user queries using Business Intelligence Development Studio. But when ever you try to design  Usage-Based Optimization  you might have seen all the options  disabled.  This uses the technique of creating aggregations on FREQUENTLY USED queries in the given time interval.  We can enable the options in Usage-Based Optimization wizard. Connect to SSAS using SSMS (Sql Server Management Studio). Right click on the server and select properties as shown below. set CreateQueryLogTable to  true. Set the value of  QueryLogConnectionString  to any database where you wish to store your queries. Set the value of  QueryLogSampling  to the appropriate value for your environment (the default value of 10 means every 10th query will be logged). The lowe...
Read more