Function Inside A Select Statement

Aug 23, 1999

Can I write a function inside a Select statement in sql server 7.0
If so HOW ?

Manish Mehta

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How To Write Select Statement Inside CASE Statement ?

Jul 4, 2006

Hello friends,
I want to use select statement in a CASE inside procedure.
can I do it? of yes then how can i do it ?

following part of the procedure clears my requirement.

SELECT E.EmployeeID,
CASE E.EmployeeType
WHEN 1 THEN
select * from Tbl1
WHEN 2 THEN
select * from Tbl2
WHEN 3 THEN
select * from Tbl3
END
FROM EMPLOYEE E

can any one help me in this?
please give me a sample query.

Thanks and Regards,
Kiran Suthar

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How To Use Select Statement Inside Insert Statement

Oct 20, 2014

In the below code i want to use select statement for getting customer

address1,customeraddress2,customerphone,customercity,customerstate,customercountry,customerfirstname,customerlastname

from customer table.Rest of the things will be as it is in the following code.How do i do this?

INSERT INTO EMImportListing ("
sql += " CustId,Title,Description,JobCity,JobState,JobPostalCode,JobCountry,URL,Requirements, "
sql += " IsDraft,IsFeatured,IsApproved,"
sql += " Email,OrgName,customerAddress1,customerAddress2,customerCity,customerState,customerPostalCode,

[code]....

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Select Statement Inside UDf

Jul 26, 2007

iam trying to rerieve a certain value from one table
and i want to use that vaue inside a UDF
iam usinf a table valued function as i have to retireve no of values
Can i do something like this to retrieve the value

SET @Value=Select Value from Table WHERE xyz='some no.'
as this value is being calculated by some other fucntion and now this funcation has to use this at runtime.

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SET Inside Of SELECT Statement

Sep 20, 2007

How can I do this

Select id
set @temp = id
from tblexample

I want to do something, on each row output, with @temp.

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Using A While Inside A Select Statement

Oct 19, 2007



Hi All,
Can we use the while loop inside a select statement? Meaning, something like this:




Code Block
SELECT DATE,
WHILE (SELECT TOP 1 DATEPART(HH,DATE) FROM SC_DATEDIMENSION_TABLE) <= 23
(SELECT DATEADD(HH,6,SC_DATEDIMENSION_TABLE.DATE) )
FROM SC_DATEDIMENSION_TABLE






What I want to do here is I have a table which has all the dates but with time only representing 00 hrs. I want to display this column and along side, I want to have another column, which displays the date split at 6 hours. So, one left column, there will 4 columns on the right.

Hope the question is clear.

Thanks a lot.

Mannu.

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Newbe Question: Calling Function Inside Select

Jul 20, 2005

Hi!I have a scalar function that returns integer:xview (int)Now, I'm trying to build a procedure that has the following selectinside:select atr1, xview(atr2)from tablenameBut, I get the 'Invalid name' error when I try to execute thatprocedure.If I got it right, I must use user.fn_name() syntax, but I cannot usedbo.xview() inside my procedure since it means xview will always beexecuted as dbo, which is unaccaptable.I'm a bit confused, so any hint is very welcomed.Thanks!Mario.

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Counter Inside Select Statement?

Nov 14, 2007

Hi, can you add a counter inside a select statement to get a unique id line of the rows?
In my forum i have a page that displays a users past posts in the forum, these are first sorted according to their topicID and then they are sorted after creation date. What i want is in the select statement is to create a counter to get a new numeric order.
This is the normal way:
SELECT id, post, comment, created FROM forum_posts WHERE (topicID = @topicID) ... some more where/order by statements
This is what i want:
DECLARE @tempCounter bigintSET @tempCounter = 0SELECT @tempCounter, id, post, comment, created FROM forum_posts WHERE (topicID = @topicID)... some more where/order by statements and at the end.. (SELECT @tempCounter = @tempCounter + 1)
Anyone know if this can be done?

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Declare Inside Select Statement?

Nov 12, 2003

I have a need to execute a cursor inside a select statment, but I'm having problems figuring this out. The reason this need to be inside a select statement is that I am inserting the cursor logic into a query expression in PeopleSoft Query.

So! Here's the statement that works:

======================
DECLARE @fixeddate datetime
DECLARE @CVG_ELECT char(1)
DECLARE @Effdt datetime
DECLARE EFFDTS CURSOR FOR
SELECT Z.EFFDT, COVERAGE_ELECT
FROM PS_LIFE_ADD_BEN Z
WHERE Z.EMPLID = '1000'
AND Z.EFFDT <=
GETDATE()
AND Z.PLAN_TYPE = '20'
ORDER BY Z.EFFDT DESC
OPEN EFFDTS
FETCH NEXT FROM EFFDTS INTO @Effdt, @CVG_ELECT
WHILE @@FETCH_STATUS = 0
BEGIN
if @CVG_ELECT <> 'E'
break
ELSE
SET @fixeddate = @Effdt
FETCH NEXT FROM EFFDTS INTO @Effdt, @CVG_ELECT
END

CLOSE EFFDTS
DEALLOCATE EFFDTS
PRINT @fixeddate

======================
If I execute this in SQL Query Analyzer it gives me the data I am looking for. However, if I try to paste this into a select statement, it goes boom (actually, it says "Incorrect syntax near the keyword 'DECLARE'.", but you get the idea).

Is it possible to encapsulate this inside a select statement?

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UPDATE Inside A SELECT Statement?

Mar 24, 2015

I would like to UPDATE a column form my SELECT statement below but not sure how to go about this?!

The column I need to update is: courses.active = N

SELECT schools.id, schools.name, schools.cactus_name, schools.cactus_name_english, schools.address1, schools.address2, schools.city, schools.county, schools.postcode, schools.country, schools.active, schools.latitude, schools.longitude, schools.contact, schools.website, schools.email, schools.telephone, schools.fax, schools.dos, schools.other_contacts, schools.school_commission, schools.bo_notes, courses.name, courses.domains,

[Code] ....

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Select Statement In A Function

Jan 21, 2004

CREATE FUNCTION GetPerson (@SSN integer, @NamePrefix varchar(10), @FirstName varchar(30), @MiddleName varchar(30), @LastName varchar(40), @NameSuffix varchar(10), @HomeID integer, @MailID integer, @DOB timestamp, @Gender varchar(1), @MaritalStatus varchar(1))
RETURNS integer as
BEGIN
DECLARE @PersonID integer
set @PersonID=0
if @SSN>0 and @SSN<999999999
Begin
select Min(lngPersonID) AS PersonID from Persons where lngSSN=@SSN
End
ELSE
if @SSN is not null
BEGIN
IF @LastName is not null and @FirstName is not null and @MiddleName is not null and @NamePrefix is not null and @NameSuffix is not null
Begin
select MIN(lngPersonID) AS PersonID from Persons
where strNamePrefix= @NamePrefix and strFirstName=@FirstName
and strMiddleName=@MiddleName and strLastName=@LastName
and strNameSuffix=@NameSuffix and lngSSN=@SSN
End
ELSE
if @LastName is not null
BEGIN
select MIN(lngPersonID) as PersonID from Persons
where strLastName=@LastName
and lngSSN = @SSN
END
END
return (@personID)
END

I m having problem with the "Select" function
the error I m getting is
Select statements included within a function cannot return data to a client (error 444)


Cann I use "select" statement in the function? If not what is the alternative?


I reduced the size of the sproc because it is a big one, I donn have any proble with syntax.





Thanks

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Function Used Twice In Select Statement

May 22, 2008

Hi,

I've got a complex UDF I need to call twice in a select statement, as shown below:

SELECT

dbo.myFunction(colName),
dbo.myFunction(colName) * 2
FROM

tableName

The problem is, the result of "dbo.myFunction(colName)" is not being cached, so the function is executed again for "dbo.myFunction(colName) * 2". This is having a significant impact on performance (doubling the amount of time it takes for the query to execute).

Is there any way I can write the query so that dbo.myFunction is only executed once?

Thanks for your help,

Andrew

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Use DateDiff Function Within Select Statement

Feb 3, 2015

I'm trying to use the DateDiff function within my select statement, but I'd like to add the parameter of greater than 30 days. This will have the query only return records where my bill stop date is greater than 30 days from the completion date. I currently have the datediff function within my select statement as

DATEDIFF (d,A.StopBillDate, a.CompletionDate) as [DIFFERENCE]

I would prefer to keep the datediff function within the select statement so as to have difference in days appear as a column within my output.I have been unable to add the parameter of > 30 days to the query without getting an error.

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Aggregate Function For Select Statement Result?

Oct 19, 2004

Ok, for a bunch of cleanup that i am doing with one of my Portal Modules, i need to do some pretty wikid conversions from multi-view/stored procedure calls and put them in less spid calls.

currently, we have a web graph that is hitting the sql server some 60+ times with data queries, and lets just say, thats not good. so far i have every bit of data that i need in a pretty complex sql call, now there is only one thing left to do.

Problem:
i need to call an aggregate count on the results of another aggregate function (sum) with a group by.

*ex: select count(select sum(Sales) from ActSales Group by SalesDate) from ActSales


This is seriously hurting me, because from everything i have tried, i keep getting an error at the second select in that statement. is there anotherway without using views or stored procedures to do this? i want to imbed this into my mega sql statement so i am only hitting the server up with one spid.

thanks,
Tom Anderson
Software Engineer
Custom Business Solutions

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SQL 2012 :: Using Count Function And Case In One Select Statement

Jul 9, 2014

I am selecting the count of the students in a class by suing select COUNT(studentid) as StCount FROM dbo.student But I need to use a case statement on this like if count is less than 10 I need to return 'Small class' if the count is between 10 to 50 then I need to return 'Medium class' and if the count is more than 50 then 'Big class'.

Right now I am achieving this by the following case statement

SELECT 'ClassSize' = CASE WHEN Stcount<10 THEN 'Small Class'
WHEN Stcount>=10 and StCount<=50THEN 'Medium Class'
WHEN Stcount>50 THEN 'Big Class'
END
FROM(
select COUNT(studentid) as Stcount FROM dbo.student) Stdtbl

But can I do this with just one select statement?

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EXEC Inside CASE Inside SELECT

Nov 16, 2007

I'm trying to execute a stored procedure within the case clause of select statement.
The stored procedure returns a table, and is pretty big and complex, and I don't particularly want to copy the whole thing over to work here. I'm looking for something more elegant.

@val1 and @val2 are passed in


CREATE TABLE #TEMP(
tempid INT IDENTITY (1,1) NOT NULL,
myint INT NOT NULL,
mybool BIT NOT NULL
)

INSERT INTO #TEMP (myint, mybool)
SELECT my_int_from_tbl,
CASE WHEN @val1 IN (SELECT val1 FROM (EXEC dbo.my_stored_procedure my_int_from_tbl, my_param)) THEN 1 ELSE 0
FROM dbo.tbl
WHERE tbl.val2 = @val2


SELECT COUNT(*) FROM #TEMP WHERE mybool = 1


If I have to, I can do a while loop and populate another temp table for every "my_int_from_tbl," but I don't really know the syntax for that.

Any suggestions?

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Transact SQL :: Select Statement Not Working In User Defined Function

Nov 3, 2015

The select statement:

SELECT DATEDIFF(n , LAG(CAST(Date AS DATETIME) + CAST(Time AS DATETIME), 1) OVER ( ORDER BY Date, Time ),
       CAST(Date AS DATETIME) + CAST(Time AS DATETIME))
   FROM [DataGapTest]

Gives the right output:

NULL
1
1
3548
0

However, when I put the statement in a function, I get only zeros as the output. It's as if the lag and current value are always the same (but they are not of course).

CREATE FUNCTION dbo.GetTimeInterval(@DATE date, @TIME time)
RETURNS INT
AS
  BEGIN
 DECLARE @timeInterval INT
   SELECT @timeInterval = DATEDIFF(n , LAG(CAST(@Date AS DATETIME) + CAST(@Time AS DATETIME), 1) OVER ( ORDER BY Date, Time ),
       CAST(@Date AS DATETIME) + CAST(@Time AS DATETIME))
   FROM dbo.[DataGapTest]
  RETURN @timeInterval
  END

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Transact SQL :: How To Turn Select Aggregate Function Statement Into A Variable

May 26, 2015

I tend to learn from example and am used to powershell. If for instance in powershell I wanted to get-something and store it in a variable I could, then use it again in the same code. In this example of a table order items where there are order_num, quantity and item_prices how could I declare ordertotal as a variable then instead of repeating it again at "having sum", instead use the variable in its place?

Any example of such a use of a variable that still lets me select the order_num, ordertotal and group them etc? I hope to simply replace in the "having section" the agg function with "ordertotal" which bombs out.

select order_num, sum(quantity*item_price) as ordertotal
from orderitems
group by order_num
having sum(quantity*item_price) >=50
order by ordertotal;

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Function Inside The Procedure

Jan 29, 2008

i have created the table empid,empname,dob,salary for the insert i need to create procedure of insert empid,empname,dob,salary i got the function for autogenerated number for empid
mmy question how to put function inside the procedure?
my function below,pls guide me its very urgent.
create function NextCustomerNumber()
returns char(5)
as
begin
declare @lastval char(5)
set @lastval = (select max(customerNumber) from Customers)
if @lastval is null set @lastval = 'C0001'
declare @i int
set @i = right(@lastval,4) + 1
return 'C' + right('000' + convert(varchar(10),@i),4)
end

Desikankannan

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Dynamic Sql Inside Function And Return Value

Apr 10, 2007

Is it possible to write dynamic sql on scalar function and assign the value to return value? I like some thing like below but it is not working...
Thanks
______________________________________________________________________
set @sql = 'select @CallLegKey= min(calllegkey) as CallLegKey
from rt_'+@platform+'_CallLegs
where datediff(day,convert(datetime, CallEndTime) ,'''+cast(@today as varchar(20))+''') = '+cast(@cutoff as varchar(5))
exec @sql

return @CallLegKey

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Usage Of Count() Function Inside Sql Transaction

May 9, 2007

Please find my second post in this thread.

Can anyone help me in sorting out the problem and let me know what might be the reason.

Thanks & Regards

Pradeep M V

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Problems With ABS() Function Inside Sub Query (within WHERE-Clause)

May 28, 2008

Hello,

when trying to execute the following query with SQL CE 3.1 and OLEDB on WM2003:

SELECT C.Panel_Id, C.Panel_Tier, C.Panel_Type, C.Panel_No, C.Panel_Position
FROM tblMeasurements AS A, tblAssignment_Ant_Pan AS B, tblPanels AS C
WHERE (A.Measurement_No=?) AND (A.Antenna_No = B.Antenna_No) AND (B.Panel_Id = C.Panel_Id) AND C.Panel_Position in
(SELECT Panel_Position FROM tblMeasurement_Results
WHERE (Measurement_No=?) AND ABS(Measurement_Value) BETWEEN ? AND ?
GROUP BY Panel_Position)

i get this error returned:
0x80040E1DL -- DB_E_UNSUPPORTEDCONVERSION -- Requested conversion is not supported.

I don't know where inside the sql string a conversion is necessary/fails.
Surprisingsly when i modify the sql statement a little, it is executed WITHOUT ERRORS:

SELECT C.Panel_Id, C.Panel_Tier, C.Panel_Type, C.Panel_No, C.Panel_Position
FROM tblMeasurements AS A, tblAssignment_Ant_Pan AS B, tblPanels AS C
WHERE (A.Measurement_No=?) AND (A.Antenna_No = B.Antenna_No) AND (B.Panel_Id = C.Panel_Id) AND C.Panel_Position in
(SELECT Panel_Position FROM tblMeasurement_Results
WHERE (Measurement_No=?) AND Measurement_Value BETWEEN ? AND ?
GROUP BY Panel_Position)

The only difference between the 2 statements is the ABS() function inside the sub query.

More surprisingly, with the query analyser on the PDA i can execute both statements fine. I am absolutely confused now where i have to search for the mistake.

I would appreciate it very much if someone out there knows an answer or a hint and could tell me.

With kind regards,
Andre

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Help With Solution For Use Order BY Inside Function And VIEW On The Sql Server

Apr 8, 2008

help with solution for use order BY inside function and VIEW on the sql server
i explain the problem
i am a web developer in asp page
i BUY an DATA grid object for my web site
the problem in this object i can use only ONE field to use ORDER BY
can i store in the sql server function and VIEW that change the ORDER of the result inside the sql server ?
so whan i do
SELECT *
FROM dbo.tb_pivot_big

the sql server ORDER for ME the result and run this (inside the sql server )


Code Snippet
SELECT *
FROM dbo.tb_pivot_big
ORDER BY new_unit, Fname ASC, val_orginal desc



TNX for help

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Aug 17, 2007

I have created an assembly with permission set safe, and a function inside the assembly.
The function reads data from the same SQL Server as it is running inside. For connection I use the "Context connection = true", and the function has the SystemDataAccessKind attribute set to Read.

However when I execute my CLR function I get an error saying something like:
"The request for permission of type System.Data.SqlClient.SqlClientPermission...... failed"

I do, as the login user, have been granted the necessary rights, so I don't believe this is the answer to the error.
And my .dll is also signed.

Has this something to do with writing something a config file?
I have had simular problems with reporting services but fixed them by entering a node in the rspolicy.config file. If this is the case here - which .config file should i modify...machine.config?

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If Statement Inside Sql Query??

Jun 7, 2008

Hello,

I have an if statement for one of my columns in my query.
I want to write the if statement as a part of my select statement.
How would I do that. Do to a couple of rules I am not allowed to write a stored procedure for this.

I could use the "decode function" but

I have something like this:
if column1 = '1' or column2 = '2' then select "Yes" etc..

I tried doing select decode (column1 or column2, , , ) but it doesn't work.
Any ideas?

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If Statement Inside Sql Query??

Jun 7, 2008

Hello,

I have an if statement for one of my columns in my query.
I want to write the if statement as a part of my select statement.
How would I do that. Do to a couple of rules I am not allowed to write a stored procedure for this.

I could use the "decode function" but

I have something like this:
if column1 = '1' or column2 = '2' then select "Yes" etc..

I tried doing select decode (column1 or column2, , , ) but it doesn't work.
Any ideas?

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Select Statement Within Select Statement Makes My Query Slow....

Sep 3, 2007

Hello... im having a problem with my query optimization....

I have a query that looks like this:


SELECT * FROM table1
WHERE location_id IN (SELECT location_id from location_table WHERE account_id = 998)


it produces my desired data but it takes 3 minutes to run the query... is there any way to make this faster?... thank you so much...

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Feb 12, 2008

Dear all, I have the Following Query:SELECT DATEDIFF(day, GETDATE(), RECENT_RESERVATION)AS Expr1,RECENT_RESERVATION FROM EMP WHERE SUN=empName;when i run it inside the query analyzer, it returns two columns. but if run it inside The ASPX page it retuns only one column wich is  RECENT_RESERVATION date.Note: i am using one methode that takes care of reading from SQL and assigning the result into an array, it works fine everywhere, but with this query it dosen't work. Any suggestions??   

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May 15, 2008

I have several UDFs created. Inside one of the UDFs I need to execute a dynamic SQL statement and then take that result and do something else with it, before returning the final value.

I know you can not execute a stored proce from inside a function. I also know you can not use the EXEC statement.

I did read that you could use an external stored procedure and/or managed CLR procedures inside a function.

I have created a managed procedure CLR (C#) that simply executes a passed statemetn and returns the value to the calling routine. I have this all coded and is working fine.

However, I am struggling with knowing how to call this CLR procedure from inside my function, seeing how I can not use EXEC statement.

Any advice on how to do this?

Thanks,
Bruce

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How Do I Imbed A Select Inside A Select

Apr 14, 2008

I need a select that gets a value and than appends another value if the criteria is met otherwise nothing is appended.

The statement has a select with an imbedded select and when I execute it I get the error:
Only one expression can be specified in the select list when the subquery is not introduced with EXISTS.

Thia is a crude sample of the statement

SELECT ID + ( select * from tableB where TableB = 0 ) as result1
FROM TableB

Why am I getting this error and how do I fix the statement?
thanks

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Sep 1, 2006

If I start a transaction using the following approach ...             using (SqlTransaction trans = destConn.BeginTransaction())            {                  ...do some transfers using SqlBulkCopy            }...will an automatic rollback occur in case of unhandled errors inside the scope of the using statement?

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Oct 4, 2007

Can someone please take a quick look at this and tell me what I'm doing wrong I'm sure it's something simple.  I'm a little new to stored procedures but I've been using SQL and T-SQL for quite some time, I've just always used inline queries with my ASP.  This procedure needs to be run monthly by me or another person I grant access to and will update sales information that our sales staff will be paid commission on.  I need to supply the start date and and end date for the query and it will pull this information from our business system which is hosted remotely by a third party and pull it into our local SQL server where we can run commission reports against it.  (I hope this is enough information you can understand where I'm trying to go with this).  I know my problem right now lies in how I'm trying to call the variable inside of my T-SQL.  Any help is appreciated.  This is an old Unix system and it stores the date as YYYYMMDD as numeric values incase someone wonders why I have dimed my dates as numeric instead of as datetime =)
I'm using a relativity client to create an ODBC connection to the UNIX server and then using a linked server to map a connection in SQL this is the reason for the OpenQuery(<CompanyName>
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: XXXXXXXXXXXXX
-- Create date: 10/4/2007
-- Description: This proc is designed to pull all CSA
-- part sales from XXXXXX business system and upload them
-- into the local XXXXXXXX Database for commission reporting
-- =============================================CREATE proc usp_CSAPartsSalesUpdate@date1 int, @date2 int
As
INSERT INTO CSAPartsSales ( CSA, CustomerNumber, CustomerName, Location, InvoiceNumber, InvoiceDate, InvoiceAmount )
SELECT SalesRoute, HInvCust, CustOrCompName, HInvLoc, HInvNo, HInvDate, HInvAmt From OpenQuery(<CompanyName>, 'Select CPBASC_All.SalesRoute, PMINVHST.HInvCust, CPBASC_All.CustOrCompName, PMINVHST.HInvLoc, PMINVHST.HInvNo, PMINVHST.HInvDate, PMINVHST.HInvAmtFROM PMINVHST INNER JOIN CPBASC_All ON PMINVHST.HInvCust = CPBASC_All.CustomerNo
WHERE (((PMINVHST.HInvAmt)<>0) AND ((PMINVHST.HInvDate)>=''' + @date1 + ''' And (PMINVHST.HInvDate)<=''' + @date2 + ''') AND ((Trim([CPBASC_All].[SalesRoute]))<>'''' And (Trim([CPBASC_All].[SalesRoute]))<>''000''))')
 
In this example date1 will be equal to 20070901 and date2 will be equal to 20070930 so I can pull all CSA sales for the month of September.
This is the error message I get when I try to create the proc:
Msg 102, Level 15, State 1, Procedure usp_CSAPartsSalesUpdate, Line 17
Incorrect syntax near '+'.
~~~ Thanks All~~~
 

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If Statement Inside A Stored Procedure!!!!

Mar 20, 2007

hi all,
i'm wondering if i can use one stored procedure in too cases, this is the senario:
i have stored procedure for admin and another one for user, they have the same select everything is the same except that in admin SP i have where @admin = admin and for user i have where @user = user
if there a way to use if and else to make this happen
this is what i did so far:

CREATE PROCEDURE [test] @admin INT, @user INT, @indexType INT as
if @indexType = 1

begin

SELECT * FROM table WHERE something IN (SELECT * FROM anothertable where admin = @admin)
end
else
begin
SELECT * FROM table WHERE user = @user
end
GO

any suggestion will be very helpful
thanks

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