I am pretty new to SSAS, OLAP and MDX syntax.
So I have this MDX to query the cube by TSQL (by linked server to SSAS) and it works fine:
select * from openquery(GCUBE,
'SELECT NON EMPTY { [Measures].[Valore] } ON COLUMNS,
NON EMPTY {
( [Prodotti].[Top Marca].[Top Marca].ALLMEMBERS
* [Prodotti].[Top Codice].[Top Codice].ALLMEMBERS
* [Agenti].[Vw Agenti].[Vw Agenti].ALLMEMBERS
* [Calendario].[AnnoMese].[Mese].ALLMEMBERS
* [Prodotti].[Ordinamento].[Ordinamento].ALLMEMBERS
* [Prodotti].[Top].[Top].ALLMEMBERS )
}
DIMENSION PROPERTIES MEMBER_CAPTION
ON ROWS FROM ( SELECT ( { [Calendario].[Anno].&[2012] } )
ON COLUMNS FROM ( SELECT ( { [Agenti].[Vw Agenti].&[005] } )
ON COLUMNS FROM [Vendite])) WHERE ( [Calendario].[Anno].&[2012] )'
)
Well, the [Prodotti].[Top Marca] is a dimension based on a table with the 50 top selling brands and this MDX is filtered by a specific ID Agent [Vw Agenti] = 005.
The purpose of the query is to find out how the agent is selling the company's 50 top selling brands.
The query works fine but there is one brand not sold by this agent and I need to show the empty row.
The figure below shows the missing record relative to the position (rank) 31.
I understand the concept about NON EMPTY but I can't find the right syntax to also show the empty record.
How should I modify the MDX?
I tried to remove NON EMPTY but I get a generic error:
Cannot execute the query against OLE DB provider "MSOLAP" for linked server "GCUBE"
Do I need to change the dimension Top Marca in the cube?
Thanks in advance to anyone who can help me or give the right tips to solve this.
I'm not a specialist of SSAS/TSQL, but I would try a simple request first :
SELECT
[Measures].[Valore]ON COLUMNS,
NON EMPTY [Prodotti].[Top Marca].[Top Marca].ALLMEMBERS ON ROWS
FROM ( SELECT { [Calendario].[Anno].&[2012] } ON COLUMNS
FROM ( SELECT { [Agenti].[Vw Agenti].&[005] } ON COLUMNS
FROM [Vendite]
)
) '
Any way to run it without this TSQL stuff?
Related
I have a portal on my "Clients" table. The related table contains the results of surveys that are updated over time. For each combination of client and category (a field in the related table), I only want the portal to display the most recently collected row.
Here is a link to a trivial example that illustrates the issue I'm trying to address. I have two tables in this example (Related on ClientID):
Clients
Table 1 Get Summary Method
The Table 1 Get Summary Method table looks like this:
Where:
MaxDate is a summary field = Maximum of Date
MaxDateGroup is a calculated field = GetSummary ( MaxDate ;
ClientIDCategory )
ShowInPortal = If ( Date = MaxDateGroup ; 1 ; 0 )
The table is sorted on ClientIDCategory
Issue 1 that I'm stumped on: .
ShowInPortal should equal 1 in row 3 (PKTable01 = 5), row 4 (PKTable01 = 6), and row 6 (PKTable01 = 4) in the table above. I'm not sure why FM is interpreting 1Red and 1Blue as the same category, or perhaps I'm just misunderstanding what the GetSummary function does.
The Clients table looks like this:
Where:
The portal records are sorted on ClientIDCategory
Issue 2 that I'm stumped on:
I only want rows with a ShowInPortal value equal to 1 should appear in the portal. I tried creating a portal filter with the following formula: Table 1 Get Summary Method::ShowInPortal = 1. However, using that filter removes all row from the portal.
Any help is greatly appreciated.
One solution is to use ExecuteSQL to grab the Max Date. This removes the need for Summary functions and sorts, and works as expected. Propose to return it as number to avoid any issues with date formats.
GetAsTimestamp (
ExecuteSQL (
"SELECT DISTINCT COALESCE(MaxDate,'')
FROM Survey
WHERE ClientIDCategory = ? "
; "" ; "";ClientIDCategory )
)
Also, you need to change the ShowInPortal field to an unstored calc field with:
If ( GetAsNumber(Date) = MaxDateGroupSQL ; 1 ; 0 )
Then filter the portal on this field.
I can send you the sample file if you want.
I need to update a few thousand rows in my Postgres table using the result of a array_agg and spatial lookup.
The query needs to take the geometry of the parent table, and return an array of the matching row IDs in the other table. It may return no IDs or potentially 2-3 IDs.
I've tried to use an UPDATE FROM but I can't seem to pass into the subquery the parent table geom column for the SELECT. I can't see any way of doing a JOIN between the 2 tables.
Here is what I currently have:
UPDATE lrc_wales_data.records
SET lrc_array = subquery.lrc_array
FROM (
SELECT array_agg(wales_lrcs.gid) AS lrc_array
FROM layers.wales_lrcs
WHERE st_dwithin(records.geom_poly, wales_lrcs.geom, 0)
) AS subquery
WHERE records.lrc = 'nrw';
The error I get is:
ERROR: invalid reference to FROM-clause entry for table "records"
LINE 7: WHERE st_dwithin(records.geom_poly, wales_lrcs.geom, 0)
Is this even possible?
Many thanks,
Steve
Realised there was no need to use SET FROM. I could just use a sub query directly in the SET:
UPDATE lrc_wales_data.records
SET lrc_array = (
SELECT array_agg(wales_lrcs.gid) AS lrc
FROM layers.wales_lrcs
WHERE st_dwithin(records.geom_poly, wales_lrcs.geom, 0)
)
WHERE records.lrc = 'nrw';
I have schema with 3 main classes: Transaction , Address and ValueTx(Edge).
I am trying to find connected components within a range of time.
Now I am doing this query based on this one ( OrientDB: connected components OSQL query) :
SELECT distinct(traversedElement(0)) from ( TRAVERSE both('ValueTx') from (select * from Transaction where height >= 402041 and height <= 402044))
And this returns the rid of the 'head' of each trasversal and from it doing another DFS I can get every node and edge of the connected component I want to search about.
How can I, using the query above, also get the number of the transactions within the connected component and also the sum of their values? (The value of a tx is a property of the class Transaction)
I want to do something like:
SELECT distinct(traversedElement(0)) as head, count(Transaction), sum(valueTot) from ( TRAVERSE both('ValueTx') from (select * from Transaction where height >= 402041 and height <= 402044)) group by head
But of course is not working. I get only one row with the last head and the sum of all the transactions.
Thanks in advance.
Edit:
This is an example of what I'm looking for:
Connected Transactions
Every transaction there is within the same range of height:
Using my query ( the first one in my post) I get the rid of the first node of each group of transaction that are linked through several addresses.
example:
#15:27
#15:28
#15:30
#15:34
#15:35
#15:36
#15:37
#15:41
#15:47
#15:53
What I'm trying to get is a list of every first node with the total number of transactions (not addresses only the transaction) of the group it belongs to and the sum of the value of every Transaction (stored in valueTot inside the class transaction.
Edit2:
This is the dataset where I am making the tests:
The main problem is that I have a lot of data and the approach I was trying before (from every rid I make a different sql query) it's quite slow, I hope there is a faster way.
Edit3:
This is an updated sample db: Download
(note, it's way larger than the other)
select head, sum(valueTot) as valueTot, count(*) as numTx,sum(miner) as minerCount from (SELECT *,traversedElement(0) as head from ( TRAVERSE both('ValueTx') from (select * from Transaction where height >= 0 and height <= 110000 ) while ( #class = 'Address' or (#class = 'Transaction' and height >= 0 and height <= 110000 )) ) where #class = 'Transaction' ) group by head
This query on my system takes around one minute, also if I limit the result set, so I think the problem maybe in the internal query that selects the transactions that isn't using the indexes... Do you have any idea?
You can use this query
select #rid, $a[0].sum as sumValueTot ,$a[0].count as countTransaction from Transaction
let $a = ( select sum(valueTot),count(*) from (TRAVERSE both('ValueTx') from $parent.$current) where #class="Transaction")
where height >= 402041 and height <= 402044
Hope it helps.
is this what are you looking for?
select head, sum(valueTot), count(*) from (SELECT *,traversedElement(0) as head from ( TRAVERSE both('ValueTx') from (select * from Transaction where height >= 402041 and height <= 402044)) where #class = "Transaction") group by head
I have an SSRS report with 4 parameters, two of which are multi-value parameters (#material and #color using VARCHAR(MAX) datatype in SQL Server 2008 R2). I am using a split function to return the value as a comma separated:
SELECT *
FROM MyView
WHERE height > 200
AND width > 100
AND (
material IN (SELECT Item FROM [dbo].[MySplitFunction] (#material, ',')) OR
color IN (SELECT Item FROM [dbo].[MySplitFunction] (#color, ','))
)
(The code above would return 50 records)
The problem with this approach is that these two multi-value parameters have around of 1,500 different colors and materials and degrade the performance. Sometimes, it takes more than 40 minutes to return the results (row count in the view around 600,000).
I tried a different approach where I used a temp table and used it in the JOIN instead of the WHERE clause:
SELECT Item
INTO #TempTable
FROM [dbo].[MySplitFunction] (#material, ',')
SELECT *
FROM MyView
INNER JOIN ON MyView.Item = #TempTable.Item
WHERE height > 200
AND width > 100
AND material IN (SELECT Item FROM [dbo].[MySplitFunction] (#material, ','))
(The code above would return 7 records only, but the performance is much better)
My question is how can I return the same number of records (50 rows) using the second approach by adding the other #color parameter and allowing the OR condition? So in the SSRS report, the user can multi select these two parameters and the query will return #material = values OR #color = Values.
I am open to any other approach as long as it speeds up the query and allows the OR condition for the two multi-value parameters (#material, #color).
Thanks!
Something like the following might do the trick. I'm not sure I have the syntax precisely right, and it wants further testing and analysis that I can't do without the proper structures and data...
SELECT
from MyVeiew
where height > 200
and width > 100
and (exists (select Item
from dbo.MySplitFunction(#material, ',')
where Item = material)
or exists (select Item
from dbo.MySplitFunction(#color, ',')
where Item = color)
)
This performs two correlated subqueries on nested function calls. Exists checks are generally faster than in lookups in these situations. The syntax bit that worries me is the "and (exists" bit -- that's the parenthesis for the OR clause, and combined with exists it looks a bit wonky.
I think it should do what you want, but testing is definitely called for.
I mistrust that or clause. To get rid of it, try this and see what happens:
SELECT * -- Better with specific columns
from MyView
where height > 200
and width > 100
and exists (select Item
from dbo.MySplitFunction(#material, ',')
where Item = material)
UNION select *
from MyView
where height > 200
and width > 100
and exists (select Item
from dbo.MySplitFunction(#color, ',')
where Item = color)
This runs and combines two queries, removing all duplicates -- pretty much the same as the OR clause would.
Next thing to check would be reviewing table sizes and checking indexes. You're filtering results on (only!) columns height, width, material, and color; if the table is huge, appropriate index would help here.
I am new to the MDX queries. I am writing a MDX query to select a Measure value across months and I am putting date Range as filter here just to restrict no of Months returned. For eg I want Sales Revenue for each month in Date Range of 01-Jan-2014 to 30-Jun-2014. Ideally, it should give me sales value for six months i.e Jan, Feb, Mar, Apr, May and June. However when i write below query, I get error. PFB the below enter code here`ow query.
Select NON EMPTY {[Measures].[Target Plan Value]} ON COLUMNS,
NON EMPTY {[Realization Date].[Hierarchy].[Month Year].Members} ON ROWS
From [Cube_BCG_OLAP]
( { [Realization Date].[Hierarchy].[Date].&[20140101] :
[Realization Date].[Hierarchy].[Date].&[20141231] })
The error I get is The Hierarchy hierarchy already appears in the Axis1 axis. Here Date and Month Year belong to same dimension table named as Realization Date. Please help me. Thanks in advance.
You were missing the WHERE clause but I guess that was a typo. As your error message tells, you can't have members of the same hierarchy on two or more axes. In situations like this, you can use something like below which in MDX terminology is called Subselect.
Select NON EMPTY {[Measures].[Target Plan Value]} ON COLUMNS,
NON EMPTY {[Realization Date].[Hierarchy].[Month Year].Members} ON ROWS
From (
SELECT
[Realization Date].[Hierarchy].[Date].&[20140101] :
[Realization Date].[Hierarchy].[Date].&[20141231] ON COLUMNS
FROM [Cube_BCG_OLAP]
)
I like the exists function in this situation:
SELECT
NON EMPTY {[Measures].[Target Plan Value]}
ON COLUMNS,
NON EMPTY
EXISTS(
[Realization Date].[Hierarchy].[Month Year].Members
, {
[Realization Date].[Hierarchy].[Date].&[20140101] :
[Realization Date].[Hierarchy].[Date].&[20141231]
}
)
ON ROWS
FROM [Cube_BCG_OLAP]
Select
[Measures].[Target Plan Value]} On Columns
{
[Realization Date].[Hierarchy].[Date].&[20140101].Parent :
[Realization Date].[Hierarchy].[Date].&[20140631].Parent
}
On Rows
From [Cube_BCG_OLAP]
You need to create this same dimension only for filter in the cube, for example, dimension_filter -> hierarchy_filter -> level_filter