Using Variable In DataReader's SqlCommand Text
Jan 17, 2007
I'm attempting to configure a DataReader's SqlCommand text to use a package-level variable and I'm having trouble. I've read about using the "sql command from variable" option but although I see that during the configuration of Ole DB source, I don't see the same option for DataReader source. Viewing the properties of the DataReader and selecting the SqlCommand property does have button to configure the value but only displays a string value editor window. (I was hoping for the expression editor.)
The configured connection to the DataReader uses the odbc Data Provider (under .Net providers). I'm connecting to mySql, if that matters.
What I'm looking to do is to use a variable in the where clause of the DataReader's SqlCommand. Any hints how to accomplish this or other ideas would be greatly appreciated.
Thanks
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Nov 20, 2007
Hello,
I'm trying to set the SQLCommand of a DataReader with a string variable (at the DataFlow Task level), and I'm having some problems. The source is a DB2 table. The destination is an MS Excel file. Here is what I have:
1. A variable named SQLStatementDataFlow of type String. EvaluateAsExpression is set to True, and the SQL statement in the expression evaluates without a problem.
2. In the Expression property of the DataFlow Task, I have the [SqlCommand] property configured with the variable.
First, in the component properties of the DataReader, what kind of SQLCommand do I set up here if the DataFlow SQLCommand is configured to use a variable?
Thank you for your help!
cdun2
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Nov 15, 2007
Does anyone know how I can use a user variable in a sqlcommand in a Datareader source with an ODBC connection as the source?
I am storing a date value in a user variable(Date) I fill with a SQL Task and then want to use the value in the sqlcommand I use in the Datareader Source. It won't let me use the @variablename in the sql command.
Can anyone help with some advice on how I can make this work?
Appreciate any help I can get.
Thank you
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Aug 27, 2007
Hello,
Newbee here
64 bit SQL 2005 running on Windows Server 2003 X64
I have an exececute SQL task (in the control flow obviously)
SELECT MAX(last_update) AS OrdersLastUpdateFROM orders
This task executes successfully and I can see that my user variable called "User:tmOrdersLastUpdate" populates correctly in the "variables" pane.. ALL GOOD.
The next step of the Control flow is a dataflow task
Details
DataFlow Source = DataReader Source (MySQL .NET connector)
DataFlow Dest = local SQL Server OLE DB.
In the DataFlow Source the DataReader SQLCommand property is
Select * from orders where last_update >= @User:tmOrdersLastUpdate
I've tried every conceivable permutation and I can't get SSIS to itnerpret the variable as such...it always gets passed to the server as a literal.
How do I pass a user-defined global variable to the WHERE clause in a DataRader object?
Thanks
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Sep 19, 2006
Hi all,
I have been playing with integration services for a few days and at the moment, its up there with my list of software that I find ......painful.
What I am trying to do is read different tables from my one SQL database, then populate my Access database with its data.
I have put a foreach loop which goes through a collection SQL statements that I have entered into it. It first assigns it to a string variable called tablenameVar which contain statements such as "Select * from Terminals". Then the datareader is supposed to execute it based on the connectstring which never changes, and the SQLCommand value which I passed using the variable @[User::tableName]. However when I try to run it, I'm getting this error.
TITLE: Package Validation Error
------------------------------
Package Validation Error
------------------------------
ADDITIONAL INFORMATION:
Error at Data Flow Task [DTS.Pipeline]: "component "DataReader Source" (1)" failed validation and returned validation status "VS_NEEDSNEWMETADATA".
Error at Data Flow Task [DTS.Pipeline]: One or more component failed validation.
Error at Data Flow Task: There were errors during task validation.
(Microsoft.DataTransformationServices.VsIntegration)
------------------------------
BUTTONS:
OK
------------------------------
Does anyone have an idea of what I should do? or maybe a better way to do it? I appreciate you guys for taking a time to look at this.
Thanks,
Joseph
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May 10, 2007
Hi! I need to know what can I do to use a variable in the WHERE condition of the sqlcommand as I show you: current_user = User.Identity.Name
Dim cmd As New SqlCommand("SELECT [id_usuario], [nombre], [apellidos], [telefono], [empresa] FROM [usuario] WHERE [id_usuario] = current_user", cn) Obviously it doesn't work and I need your help. Thanks.
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May 18, 2007
Can't seem to pass a variable to the sql statement. I'd appreciate any help. I'm trying to pass pColName to CommandText = "ALTER TABLE tb_roomInfo ADD @rColName varchar(50);";Doesn't seem to work though. CODE: [WebMethod] public string addCol(string pColName) { SqlConnection cnn = new SqlConnection(connString); try { cnn.Open(); SqlCommand cmd = new SqlCommand(); cmd.Connection = cnn; cmd.CommandText = "ALTER TABLE tb_roomInfo ADD @rColName varchar(50);"; SqlParameter rColName = new SqlParameter("@rColName", pColName); cmd.Parameters.Add(rColName); int i = cmd.ExecuteNonQuery(); cnn.Close(); return "Insert Successful"; } catch { return "Insert Unsuccessful"; } }
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Apr 11, 1999
Is it possible to get the result from an EXEC(@sqlcommand) statement into a variable?
As part of a SQL loop, it is necessary for me to run an EXEC() command to process an SQL statement. I have succesfully implemented this, but have been unable to get the results from the EXEC() statement into a variable to allow this data to be inserted into a table. Is this possible?
For Example (I know this doesn't work, but it is effectively what I am trying to achieve):
select @result = EXEC(@sqlcommand)
I could then use the @result variable in an insert statement to update a table with the results from the EXEC command.
Any assistance would be greatly appreciated...
Regards,
Wayne
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Apr 7, 2006
Hi all,
I am trying to have a DataReader Source that can run
a variable which I used to store the SQL statement. For example, I have:
Variable #1
Variable name: tablename
Data Type: string
Value: "name_of_table"
Variable #2
Variable name: sql_stmt
Data Type: string
Value: "SELECT * FROM " + @tablename
I want to use DataReader Source to run Variable #2 in the SqlCommand
that connects to an ODBC connection. If it is possible by any way,
please let me know. Thanks in advance.
Daren
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Aug 17, 2007
Dear All,
I have created a DTS Package in Integration Services 2005.
Within the DTS Package declared a variable named xxx and passed a value 1234.
In the control flow i dropped a Data flow task and in the Property Expression Editor of DataFlow Task i defined
Property = [DataReader Source].[sqlCommand]
Expression = Variable name.
Now in the DataFlow Task Canvas dropped DataReaderSource.
How can i pass variable value to the SQLCommand ="Select * from table where name = Variable value.
regards
Sufian
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Feb 13, 2007
How can I pass a variable to a DataReader in a DataFlow task?
My SqlCommand for the DataReader is:
SELECT CustName, CustCode FROM Customers WHERE CustCode = '?'
The DataFlow task is nested in a ForEach loop. I confirmed that the variable is changing with each loop by using a ScriptTaks and a message box. However, the DataReader SqlCommand does not seem to be updating.
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Sep 21, 2006
Hi,I'm new to ASP.NET, and am currently looking into XML.I'm trying to write XML using data from an SQL Server 2000 table. But I seem to be getting the following error regarding the SQL Server connection:Compiler Error Message: CS1502: The best overloaded method match for 'System.Data.SqlClient.SqlCommand.SqlCommand(string, System.Data.SqlClient.SqlConnection)' has some invalid argumentsSource Error:Line 23: {
Line 24: SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
Line 25: mySqlDataAdapter.SelectCommand = new SqlCommand(queryString, connString);
Line 26: mySqlDataAdapter.Fill(myDataSet);
Line 27: return myDataSet;Source File: c:InetpubwwwrootmappingcreateGeoRSSFile.aspx.cs Line: 25 This is my code:using System;
using System.Data;
using System.Data.SqlClient ;
using System.Configuration;
using System.Collections;
using System.Text;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Xml;
public partial class createGeoRSSFile : System.Web.UI.Page
{
protected void Page_Load(object sender, DataSet myDataSet, EventArgs e)
{
string connString = "server=SQLSERV1;database=Historical_Statistics;UID=dbuser;PWD=Password";
string queryString = "SELECT Town, PostCode, Latitude, Longitude FROM UKPostCodes";
using (SqlConnection mySqlConnection = new SqlConnection(connString))
{
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = new SqlCommand(queryString, connString);
mySqlDataAdapter.Fill(myDataSet);
return myDataSet;
}
// Create a new XmlTextWriter instance
XmlTextWriter writer = new XmlTextWriter(Response.OutputStream, Encoding.Unicode);
// Start writing!
writer.WriteStartDocument();
writer.WriteStartElement("item");
// Creating the <town> element
writer.WriteStartElement("town");
writer.WriteElementString("PostCode",myDataSet .Tables[1].Columns("PostCode"));
writer.WriteElementString("geo:lat",myDataSet.Tables[1].Columns("Latitude"));
writer.WriteElementString("geo:lon", myDataSet.Tables[1].Columns("Longitude"));
writer.WriteEndElement();
writer.WriteEndElement();
writer.WriteEndDocument();
writer.Flush();
writer.Close();
}
}What seems to be causing this error?Thanks.
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Dec 12, 2004
If i am using SqlCommand Class and the CommandType of it is Text, then will it add "sp_executesql N" in front of the sql command automatically in fact, just like SqlDataAdapter?
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Feb 10, 2008
Hi
Is it possible To pass an SQL command to a ASp.net web service as system.data.SQLclient.sqlcommand?
That means is ispossible to pass the actuall sql command instead of just the string?
If yes how can you do that??
Cheers
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Jan 17, 2007
Hi All,
How to declare TEXT datatype as local variable . My data is getting truncated as it cross varchar(8000) characters.
Saju
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Nov 30, 2007
Hi All,
I was wondering if anybody knows how to put the values in the variable to a text file. I have a stored procedure that has a cursor that pulls certan records and then place them into a variable. I want to put the variable values into a text file. Any ideas?
Thanks.
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May 9, 2014
I want to run the following code:
Declare@Testnames as Varchar(500)
Set@Testnames = ('CT,MRI')-- List all radiology type
SELECT*
FROMRPT_OUTPATIENT_IMAGING
WHEREservice_level2 In (@Testnames)
Nothing comes back.
When I run:
SELECT*
FROMRPT_OUTPATIENT_IMAGING
WHEREservice_level2 In ('CT','MRI')
Then I get results.
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May 19, 2006
recently I wrote a TRIGGER , but I found the text is not allowed to be used.
such as:
in the trigger:
declare @content text
Is it illegal??? And why?
thank you!
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Apr 21, 2008
Hi all,I have a variable called Description which is set from a database field - How do i set another variable to grab the first 200 chars from this var?
hope this makes sense
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Mar 12, 2003
I've created a stored procedure that converts an input string in richtext format (input as type TEXT) to plain text. I would like to be able to return this newly converted string, but I need to have some way of storing it in a local variable. My problem is that since I can't use the TEXT datatype as a local variable, I have no way of storing the large amounts of text I converted within the procedure. The VARCHAR(8000) just isn't large enough for my purposes. Anyone have any suggestions on how to go about doing this?
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Sep 22, 2015
I have this big huge SQL statement. I am trying to see whether there is some quick magic way to assign it to the variable @SQL
Declare @SQL NVARCHAR(MAX)
Set @SQL = <????>
SELECT ClaimSurgical.FormNbr as ClaimIdentifier,ClaimSurgical.MemberTID, ClaimSurgical.Membernbr as MemberNumber, ClaimSurgical.AdmitDate AS ServiceDateYYYYMMDD,
CAST(CAST(ClaimSurgical.AdmitDate AS VARCHAR) AS DATETIME) ServiceDate,ClaimSurgical.ProviderNbr as ClaimPRVNO, ClaimSurgical.VendorNbr as ClaimTaxID,
ClaimSurgical.AssignedProvider1 as PCPPRVNO,ClaimSurgical.CAPVendor as PCPTaxID, EventCode_1.EventCodeTypeID,
[code]....
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Sep 7, 2007
In the data flow task I have multiple OLE DB source task to retreive data from a cube using MDX. Below is an example of the query from sql command text field: I have a few questions on how to modify this statment to make it more robust.
1) The where clause [Calendar].[Quarter 2 (2007)] should actually be some kind of variable that will change each time
the user runs this project. So I am wondering how to make this a variable and get it into this field.
2) I had thought that I could use the SSIS variable. I have created one, but I can not figure how to get it into the field that
contains the given select statment.
3) I believe that once I get this variable part to work then I want a way to have user set this data value. Either by selecting data from a table in database or through a user interface where user enters data. I did do some resarch on creating a user interface, but I did not understand what I had to do, so if any one knows where to find a tutorial on how to do this let me know, or what they believe the best/easiest way is to get data from user to fill this where clause.
select * from OPENROWSET('MSOLAP', 'DATASOURCE=local; Initial Catalog=Patient Demographics 2005;',
'with member [Measures].[TimeDisplayName] as [Calendar].CurrentMember.Name
SELECT NON EMPTY { [Measures].[TimeDisplayName],[Measures].[Adjusted Relative Weight],[Measures].[Adjusted Case Weight]} ON COLUMNS,
({[Facility].[REGION].[NATCODE], [Facility].[REGION].[REGCODE]} *
[RIC].[CMGGRPCD].ALLMEMBERS) ON ROWS FROM [ESR]
WHERE [Calendar].[Quarter 2 (2007)]
')
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Mar 25, 2004
Hello I need to write a proc to load data from txt files I receive into a table. It works fine when I specify
bulk insert.... from 'myfilename.txt'
BUT my filename will always change and I store it into a variable @filename
When I try to run the bulk insert instruction ... from @filename it doesn't work..
do you know why?
Thank you in advance
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Jun 2, 2008
Cannot use dynamic sql in current context. So need some help regarding this.I am developing a stored procedure to update a table. Sending Column names as parameters, but not able to use them as given below.INSERT INTO Books (@Column1, @Column2) values.. Any way to execute without using dynamic sql?..Thanx.
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Aug 23, 2007
HI All. I'm trying to tweak the Transfer Logins task to exclude Windows Logins that are local to the Server (e.g. servernameusername) which obviously can't be transferred off the server. Annoying that we have a couple of local Logins on this system instead of all Domain Groups, but we're stuck with them due to firewall issues, and a policy excluding SQL Logins.
My idea is to create a text file as part of my Package that lists Logins to be Excluded From the Transfer - I think I then need to create a New File Connection to the Text File as a Connection Manager, then somehow get that data into a Variable, and then use an Expression to populate the 'LoginsList' Collection from syslogins where loginame not equal to logins in my textfilevariable?
Or maybe I'm over complicating this, and there's an easier solution? Lots of info in Books Online about Expressions and Variables, but having trouble finding examples that I can use. As a DBA, this is my first foray into SSIS, and as you can possibly tell, I'm floundering....
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Nov 5, 2015
I am downloading a webpage as a text file in order to read a specific string to assign it as a variable/parameter in order to create an output file name. I would like to know how would I be able to look for a specific string and output as another variable for the rest of the package.
2015 Conforming Loan Limits
------------------------------------------------------------------------
o _Loan Limits for Calendar Year 2015--All Counties _[XLS]
</DataTools/Downloads/Documents/Conforming-Loan-Limits/FullCountyLoanLimitList2015_HERA-BASED_FINAL_FLAT.xlsx>_ ,
_[PDF]
</DataTools/Downloads/Documents/Conforming-Loan-Limits/FullCountyLoanLimitList2015_HERA-BASED_FINAL.pdf>_
o _List of 46 Counties with Increases in Loan Limits for 2015
[Code] ...
To explain it a more better way, I have a sample webpage text here. I should be searching for "FullCountyLoanLimitList" appended by the current year (like FullCountyLoanLimitList2015) and copy the entire file name in the text file and assign it to another variable so that I can download that specific file using WebClient connection.
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Aug 30, 2006
HI!
as far as I know from docs and forum datareader is for .NET data in memory. So if a use a complex dataflow to build up some data and want to use this in other dataflow componens - could i use data datareader source in the fist dataflow and then use a datareader souce in the second dataflow do read the inmemoty data from fist transform to do fursther cals ?
how to pass in memory data from one dataflow to the next one (i do not want to rebuild the logic in each dataflow to build up data data ?
Is there a way to do this ? and is the datareader the proper component ? (because its the one and only inmemory i guess, utherwise i need to write to temp table and read from temp table in next step) (I have only found examples fro .NET VB or C# programms to read a datareader, but how to do this in SSIS directly in the next dataflow?
THANKS, HANNES
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Jan 8, 2007
Hi guys. I'm having trouble declaring an sqlcommand. What I want to do is declare a global sqlcommand and I would want this sqlcommand to vary depending on the conditions on my page_load.
Here's the code....
Dim p_s_syounin2 As New SqlCommand
Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
If (Session("syozokubu_id") = 20) And (Session("syozokuka_id") = 21) And ((Session("kaikyuu_id") = 23)) Then
p_s_syounin2 = ("INSERT INTO (p_s_syounin2) SELECT syain_hnm FROM TR_syainID WHERE TR_syainID.syozokubu_id=20 AND TR_syainID.syozokuka_id=21 AND TR_syainID.kaikyuu_id=23, cnn") '''' THIS DOES NOT WORK!
End If
End Sub
p_s_syounin2 .ExecuteNonQuery()
What is the correct way of declaring p_s_syounin2?
Thanks.
Best Regards,
Audrey
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Oct 19, 2006
Is it ok to re-use a SqlCommand object? In a method, I am executing 2 separate parameterized sql statements. Before I run the second, I will clear the command objects parameters.(command.parameters.clear()) I'm just checking to see if it is good coding practice or not. thanks,SC
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Mar 6, 2007
I created an xmldocument which I would like to insert in a db field with the data type XML.The following code is giving me the error:System.Data.SqlClient.SqlException: XML parsing: line 1, character 38, unable to
switch the encoding SqlCommand cmdUpdate = new SqlCommand("sp_AddHistory", sqlConnection); cmdUpdate.CommandType = CommandType.StoredProcedure; cmdUpdate.Parameters["@FieldsChanged"].Value = xmlDoc.innerXML; // don't know whether this is good cmdUpdate.ExecuteNonQuery(); innerXML:<?xml version="1.0" encoding="utf-8"?><Fields> <Field> <FieldName>comp_Area</FieldName> <OldValue>Area 52</OldValue> <NewValue>Area 51</NewValue> </Field></Fields> The XML seems fine.. any ideas?
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Oct 17, 2007
Hello,
I am trying to insert a value into a specific row in a table. The error comes from the myCommand2 statement but i don't know how to solve it. Please help!
My code is as follows:SqlCommand myCommand = new SqlCommand("select count(*) from updatetable", myConnection);
myReader = myCommand.ExecuteReader();
while (myReader.Read())
int count = myReader.GetInt32(0);
SqlCommand myCommand2 = new SqlCommand("insert into interface (Total) where description = 'Graphicads' value ( " + count + ")", myConnection2);myCommand2.CommandType = CommandType.Text;
myCommand2.ExecuteNonQuery();
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Oct 26, 2007
Hi,When using the following controls....System.Data.SqlClient.SqlConnection System.Data.SqlClient.SqlCommandIf I want to change my SQL command and execute the query once again what cleanup do I need to do first?Do I need close and dispose the SqlConnection?Do I need to dispose the SqlCommand?Can I use the SqlConnection for more than one SqlCommand?Thanks,Scott
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Nov 23, 2007
Hello all, when I write my CommandText, It displays it as insert into videos values (127.0.0.1, 4000, 434), which the ip address is sent int as a string, put i keep getting an error, and I think it is because it is wanting an string, but it is sending in these "." or something, anyways heres my method, I dont know how I can add " " around the ip when i pass it in, since it is a string. thanks.
1 [WebMethod]
2 public void Register(string ip, int port, int[] handles)
3 {
4 SqlConnection dbConn = new SqlConnection(connStr);
5 SqlCommand comm = new SqlCommand();
6 comm.Connection = dbConn;
7 dbConn.Open();
8 for (int i = 0; i < handles.Length; i++)
9 {
10 comm.CommandText = "insert into videos values (" + ip + ", " + port + ", " + handles[i] + ")";
11 comm.ExecuteNonQuery();
12 }
13 dbConn.Close();
14 }
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