blank Columns?

Question

blank Columns?

newbie_new

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Points: 182
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March 6, 2009 at 4:02 pm

#207241

Is is possible to get a matrix to create a blank column? I have a dataset that should have a specific row of data in it, but because there was no data availabe for that month it's not in the table, but i'd like to make the report show it's column of blank values?

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Jack Corbett SSC Guru Points: 184394 More actions · Answer 1

Can you share an example of your query, actual output, and desired output? I believe you would need to adjust your query to output a row for any months that have no data by using an outer or cross join depending on you data structures.

Jack Corbett
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newbie_new SSC Enthusiast Points: 182 More actions · Answer 2

Jack:

thanks for your reply!

heres the dataset:

CREATE TABLE #TempStorage (

[pkRecordKey] [char] (17) ,

[SignalID] [smallint] NOT NULL ,

[LocalTime] [datetime] NULL ,

[fValue] [float] NULL ,

[bValue] [bit] NULL ,

[sValue] [varchar] (255) COLLATE SQL_Latin1_General_CP1_CI_AS NULL ,

[GoodQual] [bit] NOT NULL,

[ManualValue] [float] NULL,

[EffectiveValue] [float] NULL ,

[Operator] [varchar] (255) NULL,

[SignalName] [varchar] (50) NOT NULL )

INSERT #TempStorage exec spGetData2009 CP3,@StartTime,@EndTime,60

INSERT #TempStorage exec spGetData2009 FLT,@StartTime,@EndTime,60

Select * from #TempStorage

DROP TABLE #TempStorage

The report matrix is set up to let in about 28 SignalName columns of data by filter, but only shows about 23. My question is can we make blanks columns for the remainder 5 columns?

Luke L SSC-Dedicated Points: 35547 More actions · Answer 3

The way I've done this in the past has either been with a cross join as Jack suggested or you could use a union with a mostly blank dataset as per the following psuedocode. YMMV but due to some indexing issues I sometimes find the union to work more efficiently.

SELECT * FROM your actual data

Union

SELECT '' or NULL , First Day of Month

This can all be done fairly easily if you have a calendar table or tally table too.

-Luke.

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newbie_new SSC Enthusiast Points: 182 More actions · Answer 4

Yeah, i figured out a way to do it that might not be as fast as i want, but it does the trick.

thanks for the idea