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Mar 28, 2007

Hello all,
I am working on an ASP.NET that different companies will be loggin on to. The way the SQL db has been written is that each company will have it's own database. However, I am not sure if this is the right approach since modifying the database would be quite a hassle (i'd have to modify each one). Is there a way a single databse would have several instances that share the same structure but with different data ?
What is the recommended approach in these situations ? Should I re-design the database so that ALL companies store their data in one huge database ?

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Assumptions:


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I cannot use Dynamic SQL because of information security policy.

The multi-select lists are optional parameters.

The Code below is accurate.... I didn't test it and just wrote it quickly to show the complexity... hopefully you get the idea.


In scenario 1: One of the drop down lists are multi-select enabled.
My SQL Sproc Would look like this:

CREATE PROCEDURE [dbo].[get_my_ssrs_data]

@Origin_Warehouse_IDs varchar(max) = '',
@Ship_To_Geo_IDs varchar(max) = '',
@Sold_To_Geo_IDs varchar(max) = '',
@Customer_Type_IDs varchar(max) = ''

WITH RECOMPILE

AS
BEGIN
SET NOCOUNT ON;
IF OBJECT_ID(N'tempdb..#MyCoreTemp', N'U') IS NOT NULL DROP TABLE #MyCoreTemp;

SELECT
Origin_Warehouse_ID
, Ship_To_Geo_ID
, Sold_To_Geo_ID
, Customer_Type_ID

INTO #MyCoreTemp

FROM
My_Fact_Table

IF @Origin_Warehouse_IDs = ''
BEGIN
SELECT * FROM #MyCoreTemp
END
ELSE
BEGIN
SELECT * FROM #MyCoreTemp MCT
JOIN udfSplit(@Origin_Warehouse_IDs,DEFALUT) OW ON (MCT.Origin_Warehouse_ID = OW.nstr)
END


In scenario 2: Two of the drop down lists are multi-select enabled.
My SQL Sproc Would look like this:

CREATE PROCEDURE [dbo].[get_my_ssrs_data]

@Origin_Warehouse_IDs varchar(max) = '',
@Ship_To_Geo_IDs varchar(max) = '',
@Sold_To_Geo_IDs varchar(max) = '',
@Customer_Type_IDs varchar(max) = ''

WITH RECOMPILE

AS
BEGIN
SET NOCOUNT ON;
IF OBJECT_ID(N'tempdb..#MyCoreTemp', N'U') IS NOT NULL DROP TABLE #MyCoreTemp;

SELECT
Origin_Warehouse_ID
, Ship_To_Geo_ID
, Sold_To_Geo_ID
, Customer_Type_ID

INTO #MyCoreTemp

FROM
My_Fact_Table

IF @Origin_Warehouse_IDs = '' AND @Ship_To_Geo_IDs = ''
BEGIN
SELECT * FROM #MyCoreTemp
END
ELSE
IF @Origin_Warehouse_IDs != '' AND @Ship_To_Geo_IDs = ''
BEGIN
SELECT * FROM #MyCoreTemp MCT
JOIN udfSplit(@Origin_Warehouse_IDs,DEFALUT) OW ON (MCT.Origin_Warehouse_ID = OW.nstr)
END
ELSE
BEGIN
SELECT * FROM #MyCoreTemp MCT
JOIN udfSplit(@Origin_Warehouse_IDs,DEFALUT) OW ON (MCT.Origin_Warehouse_ID = OW.nstr)
JOIN udfSplit(@Ship_To_Geo_IDs,DEFALUT) STG ON (MCT.Ship_To_Geo_ID = STG.nstr)
END


In scenario 3: Three of the drop down lists are multi-select enabled.
My SQL Sproc Would look like this:

CREATE PROCEDURE [dbo].[get_my_ssrs_data]

@Origin_Warehouse_IDs varchar(max) = '',
@Ship_To_Geo_IDs varchar(max) = '',
@Sold_To_Geo_IDs varchar(max) = '',
@Customer_Type_IDs varchar(max) = ''

WITH RECOMPILE

AS
BEGIN
SET NOCOUNT ON;
IF OBJECT_ID(N'tempdb..#MyCoreTemp', N'U') IS NOT NULL DROP TABLE #MyCoreTemp;

SELECT
Origin_Warehouse_ID
, Ship_To_Geo_ID
, Sold_To_Geo_ID
, Customer_Type_ID

INTO #MyCoreTemp

FROM
My_Fact_Table

IF @Origin_Warehouse_IDs = '' AND @Ship_To_Geo_IDs = '' AND @Customer_Type_IDs = ''
BEGIN
SELECT * FROM #MyCoreTemp
END
ELSE
IF @Origin_Warehouse_IDs != '' AND @Ship_To_Geo_IDs = '' AND @Customer_Type_IDs = ''
BEGIN
SELECT * FROM #MyCoreTemp MCT
JOIN udfSplit(@Origin_Warehouse_IDs,DEFALUT) OW ON (MCT.Origin_Warehouse_ID = OW.nstr)
END
ELSE
IF @Origin_Warehouse_IDs != '' AND @Ship_To_Geo_IDs != '' AND @Customer_Type_IDs = ''
BEGIN
SELECT * FROM #MyCoreTemp MCT
JOIN udfSplit(@Origin_Warehouse_IDs,DEFALUT) OW ON (MCT.Origin_Warehouse_ID = OW.nstr)
JOIN udfSplit(@Ship_To_Geo_IDs,DEFALUT) STG ON (MCT.Ship_To_Geo_ID = STG.nstr)
END
ELSE
IF @Origin_Warehouse_IDs = '' AND @Ship_To_Geo_IDs != '' AND @Customer_Type_IDs != ''
BEGIN
SELECT * FROM #MyCoreTemp MCT
JOIN udfSplit(@Ship_To_Geo_IDs,DEFALUT) STG ON (MCT.Ship_To_Geo_ID = STG.nstr)
JOIN udfSplit(@Customer_Type_IDs,DEFALUT) CT ON (MCT.Customer_Type_ID = CT.nstr)
END
ELSE
IF @Origin_Warehouse_IDs != '' AND @Ship_To_Geo_IDs = '' AND @Customer_Type_IDs != ''
BEGIN
SELECT * FROM #MyCoreTemp MCT
JOIN udfSplit(@Origin_Warehouse_IDs,DEFALUT) OW ON (MCT.Origin_Warehouse_ID = OW.nstr)
JOIN udfSplit(@Customer_Type_IDs,DEFALUT) CT ON (MCT.Customer_Type_ID = CT.nstr)
END
ELSE
IF @Origin_Warehouse_IDs = '' AND @Ship_To_Geo_IDs = '' AND @Customer_Type_IDs != ''
BEGIN
SELECT * FROM #MyCoreTemp MCT
JOIN udfSplit(@Customer_Type_IDs,DEFALUT) CT ON (MCT.Customer_Type_ID = CT.nstr)
END
ELSE
IF @Origin_Warehouse_IDs = '' AND @Ship_To_Geo_IDs != '' AND @Customer_Type_IDs = ''
BEGIN
SELECT * FROM #MyCoreTemp MCT
JOIN udfSplit(@Ship_To_Geo_IDs,DEFALUT) STG ON (MCT.Ship_To_Geo_ID = STG.nstr)
END
ELSE
BEGIN
SELECT * FROM #MyCoreTemp MCT
JOIN udfSplit(@Origin_Warehouse_IDs,DEFALUT) OW ON (MCT.Origin_Warehouse_ID = OW.nstr)
JOIN udfSplit(@Ship_To_Geo_IDs,DEFALUT) STG ON (MCT.Ship_To_Geo_ID = STG.nstr)
JOIN udfSplit(@Customer_Type_IDs,DEFALUT) CT ON (MCT.Customer_Type_ID = CT.nstr)
END



END


----------------------------------------------------------------------------------------------------------------------------------------------------------------------------

As you can see by scenario 3 where there are only 3 multi-select lists it gets really hairy. If I go to a forth it will be even worse. Does anyone know of another better way to do this?


Thanks a bunch in advance!
Letni

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Code Snippet
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Code Snippet

inline void _bstr_t::Data_t::_Free() throw()
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if (m_wstr != NULL) {
::SysFreeString(m_wstr);
}
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delete [] m_str;
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}





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Code Snippet

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Code Snippet
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if (FAILED(_hr)) _com_issue_errorex(_hr, this, __uuidof(this));
}







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Code Snippet

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if (FAILED(_hr)) _com_issue_errorex(_hr, this, __uuidof(this));
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DTSRUN: To Multi-tier Or Not To Multi-tier. That Is The Question...

Jul 20, 2005

Greetings,We are trying to set up a set of "Leading Practices" for ourdevelopers, as well as ourselves, and hope some gentle reader canrecommend some documentation in favor of what appears to be the rightposition to take.We do not allow third party applications to run on our SQL Servers. Wewant to include DTS Packages under the definition of third partyapplications, insisting instead that the developers save theirpackages as COM Formatted files into their source code control systemsand run them from their app servers. The devlopers would like to hearthis from someone besides ourselves.While strong recomendations to remove guest access to MSDB altogetherabound, I have been unable to find a straight forward discussion ofthe advantages of structured file storage and app server off load ofDTS packages.Can anyone suggest any articles, white papers, rants, etc attemptingto formulate a solution to the benefits of taking msdb away fromguest, with the advantages of running DTS from an App server orworkstation platform, with the packages protected in source codecontrol?Thank youJohn Pollinsjpollins @ eqt . com

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What I Need To Run Compiled Application On Another Application?

Sep 11, 2007



Hey,
don't know if it's the right place for this question but i hope you help me.
I made an application with VS 2005 that connecting to sql server file db.mdf
Now i want this application work on another user computer, and of course i don't want to install vs 2005 there.
I did install .net framework, but what i need to do to make the database work? do i have to install sql server on his computer? or is there something more simple?
I know that if i was using access file than i need to install nothing else.
please help!
thanx.
max

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