Dynamic Statement In Variable - Parseerror

May 8, 2006

I am trying to use this statement in a variable, including another variable:

"SELECT * FROM my_table WHERE CAST([timestamp] AS INT) > " + @[User::LastTimestamp]

But the variable value insists on giving me this error:

The expression for variable "VariableName" failed evaluation. There was an error in the expression.

I cast the columntype "timestamp" to int, and the variable "LastTimestamp is stored as int32, and has a default value of 0. I simply can't grasp what it is I am missing.

Is it because the expression is part string and part integer? If so, how is that avoided?

Thanks in advance

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SQL Server 2012 :: Create Dynamic Update Statement Based On Return Values In Select Statement

Jan 9, 2015

Ok I have a query "SELECT ColumnNames FROM tbl1" let's say the values returned are "age,sex,race".

Now I want to be able to create an "update" statement like "UPATE tbl2 SET Col2 = age + sex + race" dynamically and execute this UPDATE statement. So, if the next select statement returns "age, sex, race, gender" then the script should create "UPDATE tbl2 SET Col2 = age + sex + race + gender" and execute it.

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Dynamic Cursor/ Dynamic SQL Statement

Oct 24, 2004

I've looked up Books Online on Dynamic Cursor/ Dynamic SQL Statement.

Using the examples given in Books Online returns compilation errors. See below.

Does anyone know how to use Dynamic Cursor/ Dynamic SQL Statement?

James



-- SQL ---------------

EXEC SQL BEGIN DECLARE SECTION;
char szCommand[] = "SELECT au_fname FROM authors WHERE au_lname = ?";
char szLastName[] = "White";
char szFirstName[30];
EXEC SQL END DECLARE SECTION;

EXEC SQL
DECLARE author_cursor CURSOR FOR select_statement;

EXEC SQL
PREPARE select_statement FROM :szCommand;

EXEC SQL OPEN author_cursor USING :szLastName;
EXEC SQL FETCH author_cursor INTO :szFirstName;



--Error--------------------
Server: Msg 170, Level 15, State 1, Line 23
Line 23: Incorrect syntax near ';'.
Server: Msg 1038, Level 15, State 1, Line 24
Cannot use empty object or column names. Use a single space if necessary.
Server: Msg 1038, Level 15, State 1, Line 25
Cannot use empty object or column names. Use a single space if necessary.
Server: Msg 170, Level 15, State 1, Line 27
Line 27: Incorrect syntax near ';'.
Server: Msg 170, Level 15, State 1, Line 30
Line 30: Incorrect syntax near 'select_statement'.
Server: Msg 170, Level 15, State 1, Line 33
Line 33: Incorrect syntax near 'select_statement'.
Server: Msg 102, Level 15, State 1, Line 35
Incorrect syntax near 'author_cursor'.
Server: Msg 170, Level 15, State 1, Line 36
Line 36: Incorrect syntax near ':'.

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Cannot Set A Variable From A Select Statement That Contains A Variable??? Help Please

Oct 4, 2006

I am trying to set a vaiable from a select statement

DECLARE @VALUE_KEEP NVARCHAR(120),

@COLUMN_NAME NVARCHAR(120)



SET @COLUMN_NAME = (SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'CONTACTS' AND COLUMN_NAME = 'FIRSTNAME')



SET @VALUE_KEEP = (SELECT @COLUMN_NAME FROM CONTACTS WHERE CONTACT_ID = 3)



PRINT @VALUE_KEEP

PRINT @COLUMN_NAME



RESULTS

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

FirstName <-----------@VALUE_KEEP

FirstName <-----------@COLUMN_NAME



SELECT @COLUMN_NAME FROM CONTACTS returns: FirstName

SELECT FirstName from Contacts returns: Brent



How do I make this select statement work using the @COLUMN_NAME variable?

Any help greatly appreciated!

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How To Dynamic Set The Variable Value

Apr 1, 2008



In the old DTS package, we can use Active-x script to set the variable value:

DTSGlobalVariables("MessageData").Value = "This is a test"

How do we do the same thing on the SSIS?

I am under the "control Flow" tab.

Thanks.

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How Do I Make The Name Of A Variable Dynamic?

Oct 4, 2006

Hi guys, I have the following store procedure:PROCEDURE dbo.AddSearchColumn (@A1, @A2. @A3, @A4, @A5) ASDeclare @cElements cursor,@DocNum varchar(100)BEGIN    Set @cElements = cursor for select FirstNaname rom dbo.DocTable1open @cElements    fetch NEXT from @cElements into @DocNumwhile (@@FETCH_STATUS = 0) begin        if (@DocNum==@A1 //Here is what I need to do: I want use @A1 at the first loop step, @A2 at the second, and so on.......                            // @A1, @A2 are the parameters in inputendENDclose @cElementsDEALLOCATE @cElements I hope my explanation is clear.Please, give some hints.Thanks for your time,Christian Malatesti 

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Stuffing Dynamic Sql Value Into A Variable?

Jun 12, 2002

Ok, I have a table with several column all labeled, column1, column2, etc. I need to loop through them so I have this statement which will loop through and get the first value, then go to colun2, etc

declare @score int
declare @stm nchar(500)
set @score=0
While @score<=50

Begin
Set @score=@score+1
set @stm='select column' + rtrim(convert(char(2),@score))+' from tablename'
exec sp_executesql @stm
if @score>50
Break
else
COntinue
end

My question is, how can I stuff this value from the dynamic sql into a variable such as:

set @newvalue='exec sp_executesql @stm '

Thanks,
Eddie

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Dynamic/variable Database Name

Oct 8, 2004

Hi guys

I have a trigger which retrieves database names from a table.
I need to use this retrieved database name in another sql insert statement as a variable
e.g. set @mydbname = Select .... from.. (to get the database name)
then..
insert into @mydbname.dbo.emplTable

At the moment it reads @mydbname as the string "@mydbname" not the value the variable holds

I need the database name as a variable because i have to write to the correct database (there are 15)
Any help appreciated

Rowan

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Dynamic Variable With A Funct

Jun 2, 2008

Hi,

how to use a Dynamic variable on a function, to explan my self more here is a sample, we use this on SP but the function not allow executing.

DECLARE @SQL nvarchar(1000);set @sql=''

DECLARE @RESULT nVARCHAR(1000);SET @RESULT=''
DECLARE @mpq int;SET @mpq=0
DECLARE @FILENAME VARCHAR(40);SET @FILENAME='parm'
SELECT @RESULT =SCHEMA_NAME((SELECT SCHEMA_ID FROM SYS.TABLES WHERE NAME=@FILENAME))+'.'


SET @SQL=N'SELECT @mpq = CASE WHEN MPQ=1 THEN 10 WHEN MPQ=2 THEN 100 WHEN MPQ=3 THEN 1000 END FROM '+@RESULT+'PARM'
EXEC SP_EXECUTESQL @SQL,N'@mpq INT OUTPUT',@mpq OUTPUT

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Dynamic SQL Variable With Output ??

Jul 23, 2005

I know this has been dealt with a lot, but I would still reallyappreciate help. Thanks.I am trying to transform this tableYY--ID-Code-R1-R2-R3-R4...R402004-1-101--1--2-3-42004-2-101--2--3-4-2....2005-99-103-4-3-2-1Into a table where the new columns are the count for 4-3-2-1 for everydistinct code in the first table based on year. I will get the yearfrom the user-end(Access). I will then create my report based on theinfo in the new table. Here's what I've tried so far (only for 1stcolumn):CREATE PROCEDURE comptabilisationDYN@colonne varchar(3) '*receives R1, then R2, loop is in vba access*ASDECLARE @SQLStatement varchar(8000)DECLARE @TotalNum4 intDECLARE @TotalNum3 intDECLARE @TotalNum2 intDECLARE @TotalNum1 intSELECT SQLStatement = 'SELECT COUNT(*) FROMdbo.Tbl_Réponses_Étudiants WHERE' + @colonne + '=4 AND YY = @year'EXEC sp_executesql @SQLStatement, N'@TotalNum4 int OUTPUT', @TotalNum4OUTPUT INSERT INTO Comptabilisation(Total4) VALUES (@TotalNum4)GO

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Dynamic SQL To Populate A Variable

Aug 10, 2007

Here's the WRONG way to do what I want. I need a way to populate a variable from the output of a dynamic query.

declare @TableName sysname
set @TableName = 'Customers'

delcare @Output bigint

declare @SQL varchar(max)

set @SQL = 'select top 1 RowID from ' + @TableName

select @Output =

EXEC (@SQL)

create function udf_GetDatabaseFingerPrint(

@DBID bigint
)
begin
returns bigint
as
declare @dbname sysname

, @iBig bigint
, @tSQL varchar(2000)
select @dbName = Name from Master.Dbo.Sysdatabases where DBID = @DBID
set @tSQL = 'select sum(Rows) from ' + @dbName + '.dbo.sysindexes'
set @iBig = exec(@tSQL)
return @iBig
end

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How To Use A Table Variable With Dynamic SQL

May 8, 2008



Hi,

I've a roblem with table variables in dynamic sql context.

If i use it with normal sql there is of course no problem.
Simplified it looks like this:


-- Standard SQL ----------------------------------------------------------------------------------------------------------------
DECLARE @TestTable as TABLE(MyBigInt bigint NOT NULL, Myint int NOT NULL);



INSERT @TestTable SELECT 4711,10

SELECT* FROM @TestTable
-----------------------------------------------------------------------------------------------------------------------------------------

If i do the same thing in dynamic sql, i get errors.

-- Dynamic SQL ----------------------------------------------------------------------------------------------------------------

DECLARE @DynamicTestTable as Table(MyBigInt bigint NOT NULL, Myint int NOT NULL);

DECLARE @SQLString as nvarchar(max), @Parameters as nvarchar(2000);


SET @Parameters = N'@DynamicTestTableOUT as Table(MyBigInt bigint NOT NULL, Myint int NOT NULL) OUTPUT';


SET @SQLString= N'INSERT @DynamicTestTableOUT SELECT 4711,10';


EXECUTE sp_executesql @SQLString, @Parameters, @DynamicTestTableOUT = @DynamicTestTable OUTPUT ;


SELECT* FROM @DynamicTestTable;
-----------------------------------------------------------------------------------------------------------------------------------------


What is wrong with tis code? Or are table variables not supported inside dynamic SQL?

Thanks in advance
Raimund

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Dynamic Variable Used In Decimal Declaration

Jun 18, 2007

I'm wondering if there's a way to pass a variable to assigning a decimal datatype;

declare @intPrecision int

set @intPrecision = 3

declare @decVariable decimal(38, @intPrecision)

I've basically been given the task by my mentor to create a script to round a decimal to a given number of decimal places.

ie; 1234.56789; 2 dp => 1234.57 and not 1234.57000

Any advice would be great.

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How To Compare Dynamic Variable In Proc

Sep 28, 2007

I have a table with 52 columns named 'Week1', 'Week2' etc. with values 1, 0 etc. I want to check values in each column. I have following lines in my procedure.

Declare @l_str varchar(50),
@l_count int

Select @l_count = 1
Select @l_str = 'Week' + Convert(varchar, @l_count)
Now how do I compare the value stored in the @l_str which should be wither 0 or 1 and not 'Week1'?

Is there any better method to compare read these 52 table variables?

Thanks in advance

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Grab Output Of Dynamic Sql And Use As Variable

May 5, 2008

hello,

I'd like to know how I can grab the output of the following code and use it as variable:

declare @sql nvarchar(25)
set @sql = 'SELECT CURRENT_TIMESTAMP'
EXEC(@sql)

Thank you.

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Convert Variable Into Dynamic Select

Jul 23, 2005

I am trying to assign @sql variable to @total, where @sql is a sqlstatement stored on the database, however what I am getting is itsstring value and not its calcuation. Could anybody help?DECLARE my_cursor CURSOR FORSELECT sqlstatement from Sn_SalesReportdeclare @sql varchar(255), @total varchar(20)OPEN my_cursorFETCH NEXT FROM my_cursor INTO @sql-- Check @@FETCH_STATUS to see if there are any more rows to fetch.WHILE @@FETCH_STATUS = 0BEGINSET @total = (@sql)print @total-- This is executed as long as the previous fetch succeeds.FETCH NEXT FROM my_cursorINTO @sqlENDCLOSE my_cursorDEALLOCATE my_cursorI tried this SET @total = EXEC (@sql), but no successRod

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Dynamic Sql - How To Use 'if Exists' With Variable Tables..?

Jul 20, 2005

Hi allIn the SP below im (trying to) do some dynamic sql. As you can see the tableto use is set as a variable and the 'exec' method used to run thesqlstatements.My problem is that the 'if exists' method is not doing what i was hoping itcould do.The @presql command returns somewhere between 0 or 50 rows (give and take) -i just want the 'if exists' part to determine if the select statementreturns something or not since i then will have to update a current row - orinsert a new one.Even if there is no rows returned, the 'if exists' command will return true:-/Any suggestions to a different way of approach...?Thanks in advance :-)######## Stored procedure start ########[various @ variables]....declare @presql varchar(200)select @presql = 'SELECT * FROM '+@CurrentDB+' where btsiteID='+cast(@SiteID as varchar(6))+''IF exists((@presql))BEGINdeclare @UpdateSQL varchar(400)set @UpdateSQL = 'UPDATE '+@CurrentDB+' SET btDate='''+cast(@FileDate asvarchar(12))+''''exec(@UpdateSQL)ENDELSEBEGINdeclare @InsertSQL varchar(2000)select @InsertSQL = 'INSERT INTO ' + @CurrentDB + '(btDate,btTime)VALUES('''+ cast(@FileDate as varchar(12)) + ''','+ cast(@ImportTime as varchar(6)) + ')'EXEC(@InsertSQL)END######## Stored procedure end ########

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Dynamic SQL Return Table Variable

Nov 2, 2007

Is it possible in SQL 2000 to return a table variable from dynamic sql? We need to have some code that looks kind of like this:

declare @qry varchar(8000)
declare @sourcetable varchar(100) -- name of source table
declare @mytable table (ID_Num int identity(1,1), Child_Key varchar(100))

set @sourcetable = (select tablename from tblConfig where app = 1)

set @qry = 'insert into @mytable


select * from @sourcetable'

execute (@qry)





if (select count(*) from @mytable) > 0
begin

'insert into myFinalTable

select * from @mytable where blah blah blah



I can get the first part to work by declaring the table variable (mytable) in the dynamic sql, but I can't figure out how to return the table object.

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Can We Set Result Of Dynamic Query To Variable?

Dec 13, 2007

Is this possible as given below

declare @Qry as varchar(8000)
declare @Cnt as int
begin
set @Qry = 'select @Cnt=count(*) from ' + @TableName
exec @Qry
select @Cnt
end


But its not working....

can any one help me out in this.....

Thnx

Parag

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Set A Variable Using A Dynamic Sql In Sql Server 2000

May 29, 2006

I need to set a variable in a sp using a dynamic query as such:

declare @x1 varchar(50)
declare @x2 char(10)
DECLARE @SQLString VARCHAR(500)

set @x1 = (select DRfieldname from tblJournalType where journaltypeid = 2
set @SQLstring = 'select ' + @x1 + ' from tblAssettype where assettypeid = 10'
set @x2 = EXEC (@SQLstring)

The last line above is where I am getting the error. Is this possible to do this?



Thanks for any help

smHaig

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Dynamic SQL Variable With Spaces Not Recognized

Nov 1, 2007



declare @DatabaseName varchar(128)
set @DatabaseName = 'my new db test'
DECLARE @SQLStr varchar(500)

PRINT @DatabaseName

set @SQLStr = 'use '
+ @DatabaseName
+ ' PRINT '
+ @DatabaseName

EXEC (@SQLStr)



Error Output:
--------------------------------------------------------------------------
my new db test
Server: Msg 911, Level 16, State 1, Line 1
Could not locate entry in sysdatabases for database 'my'. No entry found with that name. Make sure that the name is entered correctly.
-----------------------------------------------------------------------

Any idea how to get the entire database name to be used with spaces in the database name. It prints the @DatabaseName just fine, but in the dynamic sql, it truncates after the first space.

I already tried N'my new db test' in the set statement. That didn't work. I tried using NVARCHAR when declaring the variable.

Let me know as soon as you can. Thanks!!

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Question About Stored Procedure And Variable From Dynamic SQL

Jan 30, 2007

Ok, so I have this stored procedure that Inserts a record and I need to return the ID inserted to pass to another procedure. I ended up having to use sp_executesql because I need to dynamically add the schema to the table. The issue that I am having is that the variable that I try to pass to the other procedure always ends up null, but it shows the correct output. Just to clarify on this, i am an Applications developer and not a DBA so I may be going about this all wrong. Any help on this would be greatly appreciated.

Here is the SP

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[sp_AddAnalyte]
@Analyt NVarChar(100),
@LName NVarChar(100),
@AtomicNum NVarChar(100),
@AtomicMass NVarChar(100),
@Weight NVarChar(100),
@HalfLife NVarChar(100),
@Units NVarChar(100),
@HF_Secs NVarChar(100),
@Gas NVarChar(100),
@Nat NVarChar(100)
AS
DECLARE @ID INT,@i INT
DECLARE @schema VarChar(50)
DECLARE @sql NVARCHAR(512)
BEGIN
SET @Schema = (SELECT schema_name())
SET @sql = N'INSERT INTO [' + @schema + '].[Analytes] ([Analyte],[LongName],[AnalyteType]) VALUES (''' + @Analyt + ''',''' + @LName + ''',1)';
EXEC sp_executesql @query = @sql;
SET @sql = N'SELECT MAX(AnalytePK) FROM [' + @schema + '].[Analytes]';
EXEC sp_executesql
@query = @sql,
@params = N'@ID INT OUTPUT',
@i = @ID OUTPUT
EXEC sp_AddParameterValue 6, @i, 'AtomicNum', @AtomicNum, '';
EXEC sp_AddParameterValue 6, @i, 'AtomicMass', @AtomicMass, '';
EXEC sp_AddParameterValue 6, @i, 'Weight', @Weight, '';
EXEC sp_AddParameterValue 6, @i, 'HalfLife', @HalfLife, '';
EXEC sp_AddParameterValue 6, @i, 'Units', @Units, '';
EXEC sp_AddParameterValue 6, @i, 'HF_Secs', @HF_Secs, '';
EXEC sp_AddParameterValue 6, @i, 'Gas', @Gas, '';
EXEC sp_AddParameterValue 6, @i, 'Natural', @Nat, '';
END

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MS SQL Dynamic Stored Procedure Using A Datetime Variable

Feb 5, 2004

Hi I'm new to MS SQL and trying to write a very small dynamic stored procedure which is giving me a headache.

What I have is:


CREATE PROCEDURE busy_report

@TableName varchar(255),
@reporteddate datetime=NULL

AS
if @reporteddate is null
select @reporteddate = CURRENT_TIMESTAMP

-- Create a variable @SQLStatement
DECLARE @SQLStatement varchar(255)
SET DATEFORMAT dmy

-- Enter the dynamic SQL statement into the
-- variable @SQLStatement
SELECT @SQLStatement = "SELECT vendor, reporteddate, count(vendor) FROM " +
@TableName + "WHERE reporteddate = ' "
+ @reporteddate + " '"


-- Execute the SQL statement
EXEC(@SQLStatement)
GO

The error I keep getting is:

Server: Msg 8114, Level 16, State 4, Procedure busy_report, Line 0
Error converting data type varchar to datetime.

Any ideas appreciated.

(Edit:)

I've also tried it this way:


CREATE PROCEDURE UK_busy_report

@TableName varchar(255),
@reporteddate datetime=NULL

AS

-- Create a variable @SQLStatement
DECLARE @SQLStatement varchar(255)
SELECT @reporteddate=CONVERT(datetime, @reporteddate)
IF @@ERROR <> 0 BEGIN

/* Do some error processing */

PRINT 'Error Occured' END

ELSE
-- Enter the dynamic SQL statement into the
-- variable @SQLStatement
SELECT @SQLStatement = "SELECT vendor, reporteddate, count(vendor) FROM " +
@TableName + "WHERE reporteddate = ' "
+ @reporteddate + " '"


-- Execute the SQL statement
EXEC(@SQLStatement)
GO

Which gives me the same error!

.logic.

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More Selecting Into Local Variable With Dynamic Select...

May 25, 2004

Not wishing to derail the other recent thread on loading a local variable, I've posted this query (hee,hee,hee...I kill me) on a separate thread...though I think I am trying to do something similar...that is to build a dynamic select statement, but return a count of the rows it finds/doesn't find to a local variable...using the (amazingly timely) responses above, I tried this:

Note that the local variables @TargetDate and @TLevel are necessary because they are being passed into the procedure as variables....

DECLARE @SQLCmd varchar(256)
DECLARE @TargetDate smalldatetime
DECLARE @TLevel int
DECLARE @n int
SET @TargetDate = '2004-05-24'
SET @TLevel = 1


SET @SQLCmd = 'SELECT @n = count(*) FROM EventLog WHERE ((CONVERT(varchar(10), [Date], 101) = ''' +
CONVERT(varchar(10), @TargetDate, 101) + ''') AND (MsgLevel = ' +
CONVERT(varchar(3), @TLevel) + '))'
exec (@SQLCmd)
if @n > 0
print 'yep'
else print 'nope'

and, it's TRYING to work...but apparently the local variable @n is not recognized in the execution of the dynamic statement, as this is the output:
Server: Msg 137, Level 15, State 1, Line 1
Must declare the variable '@n'.
nope

Thoughts?

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String / Variable Problem - Dynamic Table Name

Jul 20, 2005

HiI'm grateful for any light you can shed on this!!I've to admit, it's an unusual design but I've multiple contact tables namede.g. i2b_ash_contact or i2b_ted_contact.'i2b_' and '_contact' are static but the middle part is dynamic.Storing all contacts in one table with an identifier of e.g. 'ash' or 'ted'for each record is not possible.Returning the value from the dynamic Query is no problem but I don't knowhow to assign it to a variable.When I try doing this it either runs into problems with evaluating thevariables or doesn't retuen anything at all e.g. if I say at the end 'Print@AddressID'. The variable remains empty.How can I do something like:DECLARE@AddressID int,@ProgClient (varchar(10),@Table varchar(10)Note: @Prog is a string e.g. 'ash' or 'ted'SET @Table = 'i2b_ + @ProgClient + '_contactSET @AddressID = (SELECT AddressID FROM @Table WHERE ContactID = @ContactID)

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Analysis :: Dynamic Declaration Of Variable In MDX Query?

May 27, 2015

Is there a way to write such a query where we can declare the variable dynamically ? Currently I am using the query as shown below :

declare @pYear_Internal as NVarchar(100)
set @pYear_Internal = [D FISCALPERIOD].[FP CODE].[FP CODE]
WITH
MEMBER MEASURES.[REVENUE] AS [Measures].[TOTAL REVENUE]
SET LAST5YEARS AS STRTOMEMBER(@pYear_Internal).Lag(4) : STRTOMEMBER(@pYear_Internal)

[code]....

While executing the above query, getting the error - Query (1, 9) Parser: The syntax for '@pYear_Internal' is incorrect.  It looks like it doesn't recognize DECLARE keyword as it does with SQL queries.  I just want a query that runs directly against the server. 

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Logging Dynamic SQL Variable When EvaluateAsExpression=TRUE

Oct 24, 2006

I am trying to use the idea as mentioned by Jamie at:
http://blogs.conchango.com/jamiethomson/archive/2005/12/09/2480.aspx
which is to build dynamic SQL using a variable evaluated as an expression.

Set Expression="SELECT * FROM MyTable WHERE MyColumn = " + @[VariableContainingFilterValue]

Everything works fine. The entire package works.
My next step is to log the variable so that I know, after package execution, exactly what SQL statement the package is executing.
I tried to do it by a couple of ways in a Script task:

1) Dts.Events.FireInformation(0, String.Empty, String.Format("SQL: {0}", Dts.Variables("SourceSQL").Expression), String.Empty, 0, False)

Gives me just an expression without actually evaluating it

2) Dts.Events.FireInformation(0, String.Empty, String.Format("SQL: {0}", Dts.Variables("SourceSQL").Value), String.Empty, 0, False)

Produces an error:
The expression for variable €œSourceSQL€? failed evaluation. There was an error in the expression.


Regards,
Yitzhak

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Keeping Dynamic DateTime Variable Static

Apr 28, 2007

In one step of an SSIS package, i create an outgoing XLS filename based on the current datetime setting, a la:



"myFileName_" + (DT_WSTR,4)YEAR( getdate()) + RIGHT("0" + (DT_WSTR,2)MONTH( getdate()),2)+
RIGHT("0" + (DT_WSTR,2)DAY( getdate()),2) +
RIGHT("0" + (DT_WSTR,2)DATEPART("hh", getdate()),2) +
RIGHT("0" + (DT_WSTR,2)DATEPART("mi", getdate()),2) +
RIGHT("0" + (DT_WSTR,2)DATEPART("ss", getdate()),2) +".xls"



which provides the format as myFileName_yyyymmddhhmmss.xls.



This value is then assigned to a variable, user::myFilenameDateTime.



This variable is referred to in various steps which need the full pathname or filename.



I found, though, that in subsequent steps, the value for user::myFilenameDateTime is re-calculated whenever the variable is invoked.



So in one Task i created the physical output XLS file and named it "correctly", eg, myFileName_20070428090204.xls; in the next Task, i call a Stored Procedure in SQL Server 2005 to email the file with a corresponding message (that pulls in more data from the database).



The single Parameter to the Stored Procedure (that does the emailing) is the supposed/expected full Pathname of the outgoing file just produced but the parameter no longer represents the original filename -- and has changed slightly (a few seconds have been added) and the filename is now, myFileName_20070428090210.xls; consequently, my Email Distribution program cannot find the file with that specific name, although File = myFilename_20070428090204.xls does certainly exist.



so it appears that these variables are calculated realtime whenever encountered.



1) Am I misunderstanding something or misusing the variable assignment?

2) How can i keep << myFileName_yyyymmddhhmmss.xls >>, "static" throughout the duration of the overal SSIS Process.

3) I would think that even if I assign the derived myFileName value initially to ANOTHER "static" variable, this won't achieve anything because the new variable will be re-calculated again, as well, when it is invoked.



thx/spirits,



seth j hersh





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Error Returning Variable From Dynamic Stored Procedure

Jan 20, 2002

I am trying to return a variable from a dynamic SP -

declare @v_outvarchar(400)
...
execute ("select @v_out=" + @v_column + " from " + @v_table_name + " where " + @v_key_sql)

I get the following error:
Server: Msg 137, Level 15, State 1, Line 1
Must declare the variable '@v_out'.

Any idea how to fix this?

Carl

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Is It Possible To Store The Result Of A Dynamic Query In A Local Variable

Dec 19, 2000

I have a dynamic query which returns me a result and I want to capture that value to make further use of it in the same code. Is that possible??
exec ('select col_nm from table_name'). i want the result of this query to be captured.
DP

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Assing Dynamic Query Result To A Local Variable....

Jul 9, 2004

Hi:

Is there a way to assign a dynamic query result to a local variable?

declre @sqlString nvarchar(4000),
@minEventDate datetime,
@databaseName varchar(25)
selct @databaseName = 'customer_12345'
(actually, a cursor loop will assign the database name dynamically, here just to simplify the situation)

select @sqlString =
'select ' + @minEventDate + '= (select min(eventDate) from ' + @databaseName + '.dbo.tblABC)'
exec sql_executesql @sqlString
print '@minEventDate: ' + cast(@minEventDate as varchar(19))

Though the select min(eventDate) from customer_12345.dbo.tblABC
returns a date, ex. '02/01/2004 12:35 pm', however, the printed @minEventDate is always with Null value. It mean, the value was never correctly assigned to the local variable.

As an alternate way, I am using temp table to insert it with the query result and then assign to the local variable. Since I have many local variables to try to get the min, max, count for around 10 fields, perfer a way to direct assign to the local variable instead of 10 temp tables.

thanks
-D

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SQL Server 2012 :: Table Variable In Dynamic Query?

Jul 2, 2015

I have started working with dynamic queries recently. I am using a table variable and need to add a join in query dynamically.

For Eg- @TableVariable

SET @query_from = @query_from + CHAR(10) + ' JOIN @TableVariable on ABC.ID = @TableVariable.ID '

BUt it gives an error that @TableVariable must be declared

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SQL 2012 :: SSIS / Dynamic Updating Of A Recordset Variable?

Jul 8, 2015

updating a recordset contained in an System.Object variable during runtime.

I am trying to execute multiple file actions (plus parsing those files into a set of staging tables) at separate locations in parallel. I know I can do this in C# but I have a business requirement to use SSIS for all ETL operations.

Any one site can have 0 to many of 1 to 3 files. I would like to run multiple sites at the same time, so when all files of all types are completed at that site then go on to the next site in the list. I know I can do a single site at a time in a foreach loop but if I can run lets say 3-5 sites concurrently then I should be able to save execution time.

My thought is to have a recordset of the sites, when any 1 of the 3 (or more) "control flows" is open, update the recordset to let it know that site being actioned, when that site is complete, update the recordset that the site is completed, and so on.Or am I running in the wrong direction?

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