Date Not Evaluating In An Expression

Dec 5, 2006



I have been looking all over for some info about other people having this problem, but haven't found anything.

I have a package that needs to download a dated file from an ftp site. I am using a couple script objects to set variables, and one of them is the filename based on the date. I use an expression to get the date:

@[User::varFileName] = (DT_WSTR,4) Year( GetDate()) + (DT_WSTR,2) Month( GetDate()) + Substring((DT_WSTR, 29) GETDATE(), 9, 2)

Everything works really well when I am debugging it locally. However once it is on the server or even once I come back to it in a day or two, I am still seeing the old date. I thought it might be because my variable needed to be set to evaluateexpression = true, however once I did this it hung me and prevented me from debugging and I had to end bus dev studio. Not sure if its because it is being evaluated in two places (as a global and then in a script) but when I took it out of my script it hung again. Its strange in order to get it to work when I am debugging it locally I have to go to each process and evaluate the expressions in there, then it seems to work. thanks!

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Error Evaluating Expression

May 22, 2006

Greetings my SQL friends.

Why do I get an error message saying that the following expression won't evaluate?

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" and " + (dt_str, 10, 1252) @[User::MIN_PRICE_GRP_ID] + " > 0"

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May 15, 2008


Hi all€”I'm new to expressions, and am trying to write one where I can evaluate if a field is null, to handle it by inserting a default value if a null value is found. Given this table definition:

CREATE TABLE [dbo].[Meter Readings_stage](
[Meter System ID] [varchar](8) NOT NULL,
[Reading Date/Time] [datetime] NOT NULL,
[Meter Status] [varchar](50) NULL,
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[Comments] [varchar](200) NULL CONSTRAINT [DF_Meter Readings_Comments2] DEFAULT ('None'),
[Checked?] [bit] NULL CONSTRAINT [DF_Meter Readings_Checked ?2] DEFAULT ((1)),
[Estimate Required] [bit] NULL CONSTRAINT [DF_Meter Readings_Estimate Required2] DEFAULT ((0)),
[Hold] [bit] NULL CONSTRAINT [DF_Meter Readings_Hold2] DEFAULT ((0)),
[Processed?] [bit] NOT NULL CONSTRAINT [DF_Meter Readings_Processed2] DEFAULT ((0))

I am importing data from a CSV file where any of the fields can be null. The format is as follows:

[Meter System ID],[Reading Date],[Reading Time],[Totalizer],[Demand],[Demand Date],[Demand Time], [Reading Type]

I need to handle it something like the following in a derived column transformation, where:

[Meter System ID]: string [DT_STR]
[Reading Date]: database date [DT_DBDATE]
[Reading Time]: database time [DT_DBTIME]
[Totalizer]: float [DT_R4]
[Demand]: float [DT_R4]
[Demand Date]: database date [DT_DBDATE]
[Demand Time]: database time [DT_DBTIME]
[Reading Type]: string [DT_STR]

This is what I have built so far:
NULL((DT_DBDATE)("Reading Date")) ? (DT_DBDATE)(GETDATE()) : (DT_DBDATE)("Reading Date")

I am getting an error on the cast conversion, however. Where is the error in the evaluation?

Thanks,
Jon

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Help,

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I am loading data from an iseries into a sql server 2005 DB. Our dates are stored as a numeric value in a format of CYYMMDD where C = Century indicator 20'th is 0 and 21'st is 1, YY = Year, MM = Month and DD = Day!



Today would be 1070701. Now I want to use a derived column which which would be of type date using an expression to do the conversion.



Usually, we would add 19000000 to the number to give us 20070701 then I'd convert it to a string and then substring into a date format.



I'm just getting started with SQL 2005 so I don't know how to do this using an expression.



Any help would be greatly appreciated.



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[URL] ...

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Need Help Evaluating And Changing The Value Of A Subquery

Feb 1, 2008



Hello all,
I currently have a pain in the butt with a subquery that needs to be evaluated, and if the result gives me a null value, I want to re-evaluate the condition and fill the column with the proper information.
I'll try to explain it as best as I can:

The query retrieves information from 2 tables basically, but i do need some inner joins of diferent tables in order to follow the relations..
I got 2 conditions that need to be acomplished, the 'typeof' (intId_Tipo) has to be diferent from 6 and a keycode equals to 3.

For the "general query" i do filter this just fine, but in the subquery is where I get stucked:
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In this particular case I want to substract 2..if not I just want to substract 1.
I added a SQL CASE in oder to evaluate the null value, but it is not evaluating properly, why? I'm not sure, I need your help and recomendation guys



Here's the query that I currently have: (the comments were made in order to take the next screenshot)



Code Snippet
SELECT --h.dt_Lectura,
--h.int_Velocidad, rp.int_VelMaxima,
(SELECT intpunto FROM tblRecorrido_Puntos WHERE intPunto = case when (intPunto) is null then rp.intPunto - 2 else rp.intPunto -1 END AND rp.intId_Ruta_Ramal =intId_Ruta_Ramal AND intId_Tipo =rp.intId_Tipo) as PuntoInicial,
rp.intPunto as PuntoFinal
--rp.strDescripcion_Punto as DescripcionPuntoFinal,
--1 as Contador
--a.idRuta_Guid, a.idRamal_Guid,a.idUnidad_Guid, a.idOperador_Guid

FROM tblHistorico h
INNER JOIN tblAsignaciones a
ON a.id=h.intIdAsignaciones
INNER JOIN tblRutaRamal_Generado rrg
ON rrg.id_Ruta = a.intRuta_Asignada
INNER JOIN tblRecorrido_Puntos rp
ON (rp.intId_Ruta_Ramal =rrg.intId_Ruta_Ramal AND rp.intPunto=h.int_PtoDest)

WHERE (
h.int_ClaveTDE =3 and rp.intId_Tipo <> 6
)

ORDER BY rp.intPunto ASC

Here's the screenshot of the query result: http://img218.imageshack.us/my.php?image=consultahd0.jpg

Any help is appreciated!
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<asp:Parameter Name="Address" Type="String" />
<asp:Parameter Name="Phone" Type="String" />
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Sep 19, 2006

Hi
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The original Access SQL appears below:

SELECT [Enter the academic year (4 digits)] AS [input], ResearchStudent.Department, ResearchStudent.DateAwarded,
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LEFT JOIN qryStudentSuspGroup ON ResearchStudent.ResearchStudentID = qryStudentSuspGroup.ResearchStudentID)
LEFT JOIN StudentExamination ON ResearchStudent.ResearchStudentID = StudentExamination.ResearchStudentID
WHERE (((Year([DateAwarded]))>=[Enter the academic year (4 digits)]
And (Year([DateAwarded]))<=([Enter the academic year (4 digits)]+1))
AND ((IIf(Year([DateAwarded])=[Enter the academic year (4 digits)],Month([DateAwarded])>8,Month([DateAwarded])<9))<>False))
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In reference to this thread:

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CREATE TABLE #T (
FORMULA VARCHAR(15),
ANSWER decimal(15,8)
)
INSERT INTO #T SELECT '1', NULL
INSERT INTO #T SELECT '1.0 + 2', NULL
INSERT INTO #T SELECT '1/2', NULL
INSERT INTO #T SELECT '1/2+2', NULL
INSERT INTO #T SELECT '1/(2+2)',NULL
INSERT INTO #T SELECT '3*7.5', NULL
INSERT INTO #T SELECT '3/2*.6-2', NULL
INSERT INTO #T SELECT '(1-1)', NULL

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SELECT * FROM #T

DROP TABLE #T


I would expect this output:

FORMULA ANSWER
====================
1 NULL
1.0 + 2 NULL
1/2 NULL
1/2+2 NULL
1/(2+2) NULL
3*7.5 NULL
3/2*.6-2 NULL

FORMULA ANSWER
====================
1 1.00000000
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1/2 0.50000000
1/2+2 2.50000000
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3*7.5 22.50000000
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(1-1) 0.00000000


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JD12345 4
JD12345 7
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Directly using C:sql_working_directoryMLSAZPhoenixDocsArmls_Schema Updated 020107.xls
as connectionString works

However - I'm trying to deploy the package - and trying to use expression:
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(Same error with other Excel source also:
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