AcquireConnection Returns Null
May 15, 2006
Hi,
we are facing some issue to get the underlying OledbConnection from the runtime ConnectionManager.
below is the code sample that we are using
IDtsConnectionService conService = (IDtsConnectionService)this.serviceProvider.GetService(typeof(IDtsConnectionService));
if (conService == null)
return;
ArrayList conCollection = conService.GetConnectionsOfType("OLEDB");
for (int count = 0; count < conCollection.Count; count++)
{
string conName = ((ConnectionManager)conCollection[count]).Name;
if (conName == conMgrname)
{
conMgr = DtsConvert.ToConnectionManager90((ConnectionManager)conCollection[count]);
ConnectionManager cm = DtsConvert.ToConnectionManager(conMgr);
Microsoft.SqlServer.Dts.Runtime.Wrapper.ConnectionManagerAdoNet cmado = cm.InnerObject as Microsoft.SqlServer.Dts.Runtime.Wrapper.ConnectionManagerAdoNet;
OleDbConnection conn= cmado.AcquireConnection(null) as OleDbConnection;
}
}
In the sample above the conn is null.
To this query Darren replied to use the connection of type ADO.NET:System.Data.OleDb.OleDbConnection, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 to create the connection.
Your call to GetConnectionsOfType("OLEDB"); will return native OLE-DB connections, not ADO.NET connections, using the OleDbConnection.
The connection type for the ADo>NET OLE-DB connection is -
ADO.NET:System.Data.OleDb.OleDbConnection, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
but if user creates an New OLEDB Connection from the Connection Manager panel of the BIDS and selects the same from the custom UI how to get the underlying OLEDBConnection? the CreationName in this case is "OLEDB" and not ADO.NET:System.Data.OleDb.OleDbConnection, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089.
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Mar 18, 2007
I have the following code in my custom source component's AcquireConnection method -
if (ComponentMetaData.RuntimeConnectionCollection[0].ConnectionManager != null)
{
ConnectionManager cm = Microsoft.SqlServer.Dts.Runtime.DtsConvert.ToConnectionManager(ComponentMetaData.RuntimeConnectionCollection[0].ConnectionManager);
ConnectionManagerAdoNet cmado = cm.InnerObject as ConnectionManagerAdoNet;
if (cmado == null)
throw new Exception("The ConnectionManager " + cm.Name + " is not an ADO.NET connection.");
// Get the underlying connection object.
this.oledbConnection = cmado.AcquireConnection(transaction) as OleDbConnection;
if (oledbConnection == null)
throw new Exception("The ConnectionManager is not an ADO.NET connection.");
isConnected = true;
}
The value of oledbConnection is null.
I am trying to invoke the above method within a package that I am trying to create dynamically. Any help ?
private const string ADONETConnectionString = "Provider=SQLOLEDB.1;Data Source={0};Initial Catalog={1};Integrated Security=True;";
ConnectionManager PubTRCM = package.Connections.Add("ADO.NET:OLEDB");
PubTRCM.Name = "PubTR";
PubTRCM.ConnectionString = String.Format(ADONETConnectionString, paramPubServer, paramPubTRDB);
#region Create OLEDB Source Component
//Create a OLEDB Source Component
IDTSComponentMetaData90 Source = dataFlow.ComponentMetaDataCollection.New();
Source.Name = "OLEDBSource";
Source.ComponentClassID = typeof(Microsoft.Samples.SqlServer.Dts.AdoSourceSample).AssemblyQualifiedName;
//Get the design time instance of the source
CManagedComponentWrapper SourceDesignTime = Source.Instantiate();
//Initialize the component
SourceDesignTime.ProvideComponentProperties();
if (Source.RuntimeConnectionCollection.Count > 0)
{
Source.RuntimeConnectionCollection[0].ConnectionManagerID = PubTRCM.ID;
Source.RuntimeConnectionCollection[0].ConnectionManager = DtsConvert.ToConnectionManager90(PubTRCM);
}
SourceDesignTime.SetComponentProperty("SqlStatement", "Select PlantId from PlantDim");
//Reinitialize the metadata
SourceDesignTime.AcquireConnections(null);
SourceDesignTime.ReinitializeMetaData();
SourceDesignTime.ReleaseConnections();
#endregion
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May 3, 2006
Hello.
I've built a sample CLR function with the following declaration....
CREATE FUNCTION GetManager(@DeptCode nvarchar(3))
RETURNS nvarchar(1000)
WITH RETURNS NULL ON NULL INPUT
AS
EXTERNAL NAME Assembly1.[ClassLibrary1.MyVBClass].MyManager
And it works as expected, except when I use NULL:
DECLARE @MyManager nvarchar(1000)
EXEC @MyManager = dbo.GetManager NULL
PRINT @MyManager
It returns the value "Unknown" as it would have for any unknown DeptCode, as-programmed.
I'm of the theory it should have returned NULL without actually firing the function? Or is this only for non-CLR items... or stored procedures, not functions?
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Oct 9, 2014
I havethe following query which returns one row of data, however, the MedicalcodeID is NULL.
SELECT db1.dbo.Referral.ReferralGuidDigest, dbo.patient.PatientID, dbo.Consultation.ConsultationID, dbo.Staff.StaffID,
db1.dbo.Referral.EffectiveDateTime AS EventDate, db1.dbo.Referral.Status AS ReferralStatus, db1.dbo.Referral.Mode AS ReferralMode,
db1.dbo.Referral.ServiceType, db1.dbo.Referral.Urgency, db1.dbo.Referral.Direction, db1.dbo.Referral.Transport,
db1.dbo.Referral.EndedDate, db1.dbo.Referral.ReceivedDate, dbo.lkupMedical.MedicalCodeID, db1.dbo.Referral.Term,
[code]...
It is clear from teh above - that the expected MedicalCodeID = 33959 and NOT NULL. I dont understand why SQL added the COLLATE SQL_Latin1_General_CP1_CS_AS to the query - am working on a database developed by another person. Could it be the ACode and ReadCode in dbo.lkupMedical is not set up with SQL_Latin1_General_CP1_CS_AS. How to implement to LkupMedical table....
I changed HIGHLIGHTED JOIN to Inner/Right but it never yielded any results, no record found..
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Jan 21, 2004
hi,
i have the following query to sum the total due balance for a customer:
select sum(outstanding)from out where customer = 'myvariable' the problem is when the customer has no outstanding it returns NULL is there a way to return 0 when there are no outstanding?
thanks
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Jul 23, 2005
I am trying to script out the creation of database scripts. I am tryingto use @@servername in the statement. I found out the select@@servername returns NULL. I used sp_dropserver to drop any servernamesfirst, restarted SQL, ran sp_addserver 'servername' to add theservername, restarted SQL. select @@servername still returns NULL...Any ideas why this may be happening?Thanks,TGru*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
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Oct 25, 2006
I am using the following C# code and T-SQL to get result object from aSQL Server database. When my application runs, the ExecuteScalarreturns "10/24/2006 2:00:00 PM" if inserting a duplicated record. Itreturns null for all other conditions. Does anyone know why? Doesanyone know how to get the output value? Thanks.------ C# -----aryParams = {'10/24/2006 2pm', '10/26/2006 3pm', 2821077, null};object oRtnObject = null;StoredProcCommandWrapper =myDb.GetStoredProcCommandWrapper(strStoredProcName ,aryParams);oRtnObject = myDb.ExecuteScalar(StoredProcCommandWrapper);------ T-SQL ---ALTER PROCEDURE [dbo].[procmyCalendarInsert]@pBegin datetime,@pEnd datetime,@pUserId int,@pOutput varchar(200) outputASBEGINSET NOCOUNT ON;select * from myCalendarwhere beginTime >= @pBegin and endTime <= @pEnd and userId = @pUserIdif @@rowcount <0beginprint 'Path 1'set @pOutput = 'Duplicated reservation'select @pOutput as 'Result'return -1endelsebeginprint 'Path 2'-- check if upperlimit (2) is reachedselect rtrim(cast(beginTime as varchar(30))) + ', ' +rtrim(cast(endTime as varchar(30))),count(rtrim(cast(beginTime as varchar(30))) + ', ' +rtrim(cast(endTime as varchar(30))))from myCalendargroup by rtrim(cast(beginTime as varchar(30))) + ', ' +rtrim(cast(endTime as varchar(30)))having count(rtrim(cast(beginTime as varchar(30))) + ', ' +rtrim(cast(endTime as varchar(30)))) =2and (rtrim(cast(beginTime as varchar(30))) + ', ' +rtrim(cast(endTime as varchar(30))) =rtrim(cast(@pBegin as varchar(20)))+ ', ' + rtrim(cast(@pEnd asvarchar(20))))-- If the @@rowcount is not equal to 0 then-- at the time between @pBegin and @pEnd the maximum count of 2 isreachedif @@rowcount <0beginprint 'Path 3'set @pOutput = '2 reservations are already taken for the hours'select @pOutput as 'Result'return -1endelsebeginprint 'Path 4'--safe to insertinsert dbo.myCalendar(beginTime, endTime,userId)values (@pBegin, @pEnd, @pUserId)if @@error = 0beginprint 'Path 4:1 @@error=' + cast(@@error as varchar(1))print 'Path 4:1 @@rowcount=' + cast(@@rowcount as varchar(1))set @pOutput = 'Reservation succeeded'select @pOutput as 'Result'return 0endelsebeginprint 'Path 4:2 @@rowcount=' + cast(@@rowcount as varchar(1))set @pOutput = 'Failed to make reservation'select @pOutput as 'Result'return -1endendendEND
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Apr 26, 2007
I find it weird when decrypting a column from a baked up database and restoring it to another database. Here's the scenario:
Server1 has Database1.
Database1 has Table1 with two columns encyrpted -- Card Number and SS Number
Encryption and decryption in this Database1 is perfectly fine. Records are encrypted and can be decrypted too.
Now, I tried to backup this Database1 and restore it to another server with SQL 2005 instance called Server2. Of course the columns Card and SS Numbers were encrypted. I tried decrypting the columns using the same command to decrypt in Database1, however, it returns a NULL value
Here's exactly what I did to create the encyprtion and decryption keys on the restored database:
-- Create the master key encryption
CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'myMasterPassword'
-- Create a symetric key
CREATE SYMMETRIC KEY myKey WITH ALGORITHM = DES
ENCRYPTION BY Password='myPassword';
Go
-- Create Card Certificate
CREATE CERTIFICATE myCert WITH SUBJECT = 'My Certificate on this Server';
GO
-- Change symmetric key
OPEN SYMMETRIC KEY myKey DECRYPTION BY PASSWORD = 'myPassword';
-- I then verified if the key is opened
SELECT * FROM sys.openkeys
If I create a new database, say Database2 from that Server2, create table, master key, certificate, and symmetric key. Encrpytion and decryption on Database2 will work!
Any suggestions gurus? I tried all searches and help for almost 2 weeks regarding this issue but nobody could resolve this.
Thanks in advance!
faiga16
3 Posts
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Mar 9, 2006
I have a SQL 2005 clustered server which is returning a Null value for @@servername. I find the server entry in sysservers. I have replication configured on this so i am not able to do a Sp_dropserver & sp_addserver as this acts as a publisher. The configured merge repication stopped working because of this issue and I am not able to delete replication as the the delete option uses @@servername which returns a null value. So I am struck in a loop.
Any advice is appreciated.
thanks
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Mar 7, 2008
Hi folks,I have an issue with a column I created in my query called Instance.SELECT Object_Id, Event_type, Audience, Subject, Provider, Academic_Year, Start_date, End_date, CONVERT(varchar, Academic_Year) + ' (' + CONVERT(varchar, Start_date, 103) + ') : ' + Event_type AS InstanceFROM EventsORDER BY Event_type Above is my query. The problem is because the start date column can be null, it also returns the Instance column as null for that row.I thought it would have just missed out the date and display the rest, but it doesn't.Is there any way I could get the Instance column to display a value, when the start date is null?ThanksEdit: Managed to sort it using ISNULL()
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Jan 4, 2007
Hi All,
I have a built an application to manage the report-subscription on my ReportServer.
I'm having some troubles with retrieving the subscription properties.
My problem:
I can retrieve all my propertie except the schedule definition, when I deserialize it, the Sceduledefenition.Item always returns null.
I use the next code to deserialize it:
//////////////////////////////////////////////////////////////////////////////////////////////////////
private XmlAttributeOverrides GetSchedule()
{
XmlAttributeOverrides xmlAttrOverride = new XmlAttributeOverrides();
XmlAttributes XmlAttr = new XmlAttributes();
XmlAttr.Xmlns = false;
xmlAttrOverride.Add(typeof(ScheduleDefinition), XmlAttr);
xmlAttrOverride.Add(typeof(MinuteRecurrence), XmlAttr);
xmlAttrOverride.Add(typeof(DailyRecurrence), XmlAttr);
xmlAttrOverride.Add(typeof(WeeklyRecurrence), XmlAttr);
xmlAttrOverride.Add(typeof(MonthlyRecurrence), XmlAttr);
xmlAttrOverride.Add(typeof(MonthlyDOWRecurrence), XmlAttr);
xmlAttrOverride.Add(typeof(DaysOfWeekSelector), XmlAttr);
xmlAttrOverride.Add(typeof(MonthsOfYearSelector), XmlAttr);
return xmlAttrOverride;
}
private ScheduleDefinition DeserializeScheduleDefenition(string MatchData)
{
XmlAttributeOverrides xmlAttrOverride = GetSchedule();
XmlSerializer ser = new XmlSerializer(typeof(ScheduleDefinition),xmlAttrOverride);
Stream stream = new MemoryStream(System.Text.Encoding.Default.GetBytes(MatchData));
stream.Position = 0;
return (ScheduleDefinition)ser.Deserialize(stream);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
I'have tried almost everything, but could not find the solution.
Please, this is very important for me, so every tip or shared thought could be very helpfull.
Thnx in advance
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Nov 16, 2007
How do you prevent SQL from returning a null value for a computed column?
The following formula returns blank if any of the values are blank ... pftitle allows nulls, the other two are required on Insert.
(((([pflastname]+', ')+[pffirstname])+' - ')+[pftitle])
Where can I find the documentation of computed field operators and expressions?
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Oct 22, 2006
Im having some unexpected results from combining ISNULL with logical and '&&' and conditions '?:' in derived columns.
This works and returns A or B.
(ISNULL(Col1) && Col2 == "X") ? "A" : "B"
This fails returning Null when Col1 is null
(Col2 == "X" && ISNULL(Col1)) ? "A" : "B"
This fails returning null when Col1 is null
(ISNULL(Col1) && Col2 == "X") ? "A" : (ISNULL(Col1) && Col2 == "Y") ? "B" : "C"
I've applied service pack one and still have the issue. I've also tried using ISNULL in a condion like (ISNULL(Col1) ? TRUE : FALSE)
Anyone else seen this behavior?
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Jul 28, 2006
I am hoping someone could help me understand why this is happening and perhaps a solution.
I am using ASP.NET 2.0 with a SQL 2005 database.
In code behind, I am performing a query using a parameter as below:
sql = "SELECT field_name FROM myTable WHERE (field_name = @P1)"
objCommand.Parameters.Add(New SqlParameter("@P1", TextBox1.Text))
The parameter is obtained from TextBox1 which has valid input. However, the value is not in the table. The query should not return ANY results. However, I am getting one single row back with null values for each field requested in the query.
The SQL user account for this query has select, insert, and update permissions on the table. The query is simple, no joins, and the table has no null values in any fields. If I perform the exact same query using an account with select only permission on the table, I get what I was expecting, no records. Then if I go back to the previous user account with more permissioins, and I change the query to pass the paramter this way:
sql = String.Format("SELECT field_name FROM myTable WHERE (field_name = {0})", TextBox1.Text)
I also get NO records retuned using the same criteria.
What is going on here? I would prefer to use the parameterized query method with the account having elevated permissions. Is there some command object setting that can prevent the null row from returning?
Thanks!
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Mar 10, 2004
If I query sql server I get 10 results. But when I use if (myReader.Read()) I get only 7 results. I found that there was a Null field in the DB. I changed it and it worked.
The problem is I don't want to touch the database and set all null fields. There must be a way to get all results including the Null using sqlDataReader so that if (myReader.Read()) is used it does the right comparison.
// This code is called 10 times with a select * from where item="xxx"
P21Conn.Open();
SqlDataReader myReader = cmd.ExecuteReader();
if (myReader.Read()) {
thanks
Rod
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Sep 25, 2007
I have code that has worked just fine for some time, and now all of the sudden I am having an issue. I have a simple INSERT statement built and then make the following call:
RecordID = cmd.ExecuteScalar
I have never had a problem with this before. The RecordID of the newly inserted record is returned into the RecordID Integer varibale. All of the sudden, the varibale has a value of 0 (null I assume is being returned), but yet the INSERT worked just fine. I can check the table in SQL and it is populated with no issues.
No exception is thrown of any type or anything. Does anybody know what may be happening?
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Jan 21, 2008
The DecryptByKey function occasionally returns null even though the EncryptByKey function retuned a non-null value. The problem only occurs for a subset of rows returned by a single select and every time the script is executed, a different set of rows is affected by the problem. Occasionally all fields get encrypted/decrypted successfully, but this is rare.
It seems that the EncryptByKey function occasionally returns a value that can not be decrypted at a later point in time.
I am running on Windows XP Professional SP 2 with SQL Server 9.0.3042.
I have included a sample of the code below.
Thank you,
Mike
CREATE FUNCTION [dbo].[encrypt_text]
(
@input_text varchar(255)
)
RETURNS varbinary(8000)
AS
BEGIN
RETURN EncryptByKey(Key_GUID('eia_key'), @input_text)
END
CREATE FUNCTION decrypt_text
(
@input_text varbinary(8000)
)
RETURNS varchar(255)
AS
BEGIN
return convert(varchar(255),DecryptByKey(@input_text))
END
IF EXISTS (SELECT * FROM sys.symmetric_keys WHERE name = N'eia_key')
DROP SYMMETRIC KEY eia_key
CREATE SYMMETRIC KEY eia_key
WITH ALGORITHM = DES
ENCRYPTION BY PASSWORD = '???'
OPEN SYMMETRIC KEY eia_key DECRYPTION BY PASSWORD = '???'
execute util_print 'Deleting data'
execute ld_delete_lips_data
execute util_print 'Loading data'
set nocount on
insert into maturities (maturity_id, maturity_name, minimum_maturity, maximum_maturity)
values (1, 'TERM', 0, 0)
insert into maturities (maturity_id, maturity_name, minimum_maturity, maximum_maturity)
values (2, '0 - 2', 0, 2)
insert into maturities (maturity_id, maturity_name, minimum_maturity, maximum_maturity)
values (3, '2 - 5', 2, 5)
insert into maturities (maturity_id, maturity_name, minimum_maturity, maximum_maturity)
values (4, '5 - 10', 5, 10)
insert into maturities (maturity_id, maturity_name, minimum_maturity, maximum_maturity)
values (5, '10+', 10, null)
insert into forecast_horizons (forecast_horizon_id, forecast_horizon_name, forecast_horizon_alias)
values (1, dbo.encrypt_text('3 Month'), dbo.encrypt_text('Blended'))
insert into forecast_horizons (forecast_horizon_id, forecast_horizon_name, forecast_horizon_alias)
values (2, dbo.encrypt_text('1 Year'), dbo.encrypt_text('Fundamental'))
insert into forecast_horizons (forecast_horizon_id, forecast_horizon_name, forecast_horizon_alias)
values (3, dbo.encrypt_text('Technical'), dbo.encrypt_text('Technical'))
insert into forecast_levels (forecast_level_id, forecast_level_name)
values (1, dbo.encrypt_text('Low'))
insert into forecast_levels (forecast_level_id, forecast_level_name)
values (2, dbo.encrypt_text('Median'))
insert into forecast_levels (forecast_level_id, forecast_level_name)
values (3, dbo.encrypt_text('High'))
execute util_reseed_ident 'asset_classes', 0
execute util_execute_sql 'insert into asset_classes default values', 11
insert into sectors (sector_id, sector_name)
values (1, dbo.encrypt_text('Sovereign'))
insert into sectors (sector_id, sector_name)
values (2, dbo.encrypt_text('Inflation Linked'))
insert into sectors (sector_id, sector_name)
values (3, dbo.encrypt_text('Quasi & Foreign Government'))
insert into sectors (sector_id, sector_name)
values (4, dbo.encrypt_text('Securitized/Collateralized'))
insert into sectors (sector_id, sector_name)
values (5, dbo.encrypt_text('Corporate'))
insert into credit_ratings (credit_rating_id, credit_rating_name)
values (6, dbo.encrypt_text('AAA'))
insert into credit_ratings (credit_rating_id, credit_rating_name)
values (7, dbo.encrypt_text('AA'))
insert into credit_ratings (credit_rating_id, credit_rating_name)
values (8, dbo.encrypt_text('A'))
insert into credit_ratings (credit_rating_id, credit_rating_name)
values (9, dbo.encrypt_text('BBB'))
insert into sectors (sector_id, sector_name)
values (10, dbo.encrypt_text('High Yield'))
insert into sectors (sector_id, sector_name)
values (11, dbo.encrypt_text('Emerging Debt'))
set nocount off
insert into currencies (currency_id, currency_name, currency_code)
select CurrencyID, dbo.encrypt_text(CurrencyName), dbo.encrypt_text(CurrencyCode)
from lips_import..Currencies
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Apr 11, 2008
Is there a way to check for System.BDNull when I use the column name instead of column index? The column Photographer (in the excample below) sometimes contains the value null, and then it throws an error. Or do I have to go back to counting columns (column index of the returned data) again? try { connection.Open(); using (SqlDataReader reader = command.ExecuteReader()) { if (reader.Read()) { albumItem = new Album((int)reader["Id"]); if (reader["Photographer"] != null) albumItem.Photographer = (string)reader["Photographer"]; albumItem.Public = (bool)reader["IsPublic"]; } } } Regards, Sigurd
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Jan 6, 2006
I have a stored procedure like "select * from ThisTable"
I'm doing a dataread like:
Dim val as String = dateRead("column_from_ThisTable")
If the value in the column is not null everything works great, but if the value is null, instead of getting a value of "" which I expect, I get the column name??? In this case "column_from_ThisTable"
How do I make sure I get "" returned when the value in the column is db.null?
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Feb 22, 2006
If I run this statement in Query Analyzer, it properly returns 1for my testing table. But if I put the statement into a storedprocedure, the stored procedure returns NULL. What am I doingwrong? I suspect it may be related to how I defined the parametersfor the stored procedure. Perhaps my definition of TableName andColumnName don't match what COLUMNPROPERTY and OBJECT_ID expect toreceive, but I don't know where to look for the function declarationsfor those. Any pointers would be appreciated.Select statement:SELECT COLUMNPROPERTY(OBJECT_ID('Table1'), 'TestID', 'IsIdentity') ASIsIdentityTable definition:CREATE TABLE [dbo].[Table1] ([TestID] [numeric](18, 0) IDENTITY (1, 1) NOT NULL ,[Description] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL) ON [PRIMARY]Stored Procedure definition:CREATE PROCEDURE spTest(@TableName varchar,@ColumnName varchar)AS SELECT COLUMNPROPERTY(OBJECT_ID(@TableName), @ColumnName,'IsIdentity') AS IsIdentity
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Apr 20, 2007
I'm using SSEE 9.0.3042 and started loosing sleep over trying to figure out why the following piece of SQL
DECLARE @x xml
DECLARE @a nvarchar(400);
DECLARE @b nvarchar(400);
DECLARE @c nvarchar(400);
SET @x=N'<SuchKriterienDataSet xmlns="http://tempuri.org/SuchKriterienDataSet.xsd">
<SuchKriterien><Index>0</Index><Name>a</Name><Wert>Test1</Wert><Bedingung>0</Bedingung></SuchKriterien>
<SuchKriterien><Index>1</Index><Name>b</Name><Wert>Test2</Wert><Bedingung>0</Bedingung></SuchKriterien>
<SuchKriterien><Index>2</Index><Name>c</Name><Wert>Test3</Wert><Bedingung>0</Bedingung></SuchKriterien>
</SuchKriterienDataSet>';
WITH XMLNAMESPACES ('http://tempuri.org/SuchKriterienDataSet.xsd' AS ds)
SELECT
@a=@x.value('(/dsuchKriterienDataSet/dsuchKriterien/ds:Wert[../ds:Name = "a"])[1]','nvarchar(400)'),
@b=@x.value('(/dsuchkriterienDataSet/dsuchkriterien/ds:Wert[../ds:Name = "b"])[1]','nvarchar(400)'),
@c=@x.value('(/dsuchKriterienDataSet/dsuchKriterien/ds:Wert[../ds:Name = "c"])[1]','nvarchar(400)');
WITH XMLNAMESPACES ('http://tempuri.org/SuchKriterienDataSet.xsd' AS ds)
SELECT
@x.value('(/dsuchKriterienDataSet/dsuchKriterien/ds:Wert[../ds:Name = "a"])[1]','nvarchar(400)'),
@x.value('(/dsuchKriterienDataSet/dsuchKriterien/ds:Wert[../ds:Name = "b"])[1]','nvarchar(400)'),
@x.value('(/dsuchKriterienDataSet/dsuchKriterien/ds:Wert[../ds:Name = "c"])[1]','nvarchar(400)')
UNION ALL
SELECT @a,@b,@c
returns
Test1 Test2 Test3
Test1 NULL Test3
instead of
Test1 Test2 Test3
Test1 Test2 Test3
This is the shortest repro I could assemble. Once you increase the number of variables, a random pattern of dropped values emerges.
I could repro on fully patched Windows XP German w/ SSEE ENU and Windows Server 2003 64-bit w/ SSEE GER.
Any workaround highly appreciated.
Thx,
Henry
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Mar 3, 2008
Hi all I am having some issues in selecting items from my database where the record is NOT NULL. I have the code below however although some fields do contain soem data in it, others are blank which I believe are empty spaces. How do I do a SELECT command which ignores empty spaces and NULLS?
Code Snippet
SELECT CustomSearch FROM OfficesTable WHERE CustomSearch IS NOT NULL
Thanks, Onam.
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Jan 6, 2005
Hi
I have stupid users... who doesn't?! They have entered carriage returns as a whole value in some fields, that is, the field contains nothing more than a carriage return.
I really need to treat these cases as nulls and have successfully removed whole fields of nothing but spaces by using the LTRIM(RTRIM()) construct. Unfortunately, this doesn't deal with carraige returns. Even CASTing and CONVERTing to varchar and then using LTRIM(RTRIM()) doesn't work.
Does anyone know how I can elegantly get around this problem other than my best guess below:
Best guess pseudo code:
IF count of field is greater than 1 THEN probably a full sentence so ignore ELSE SUBSTRING first character and if CHAR(10, etc) then treat as NULL.
Here's some code that reconstructs the problem:
select datalength(char(13)) CarriageReturnVisible
, datalength(ltrim(rtrim(cast(char(13) as varchar)))) [This Don't Work]
Cheers - Andy
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Sep 3, 2007
Filling a DataTable from SqlQuery : If SqlQuery returns some null values problem ocurrs with DataTable.
Is it possible using DataTable with some null values in it?
Thanks
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Oct 7, 2005
In a script task I'm calling AcquireConnection(txn as Object) on a connection manager.
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Jan 19, 2006
Hi all
In a SSIS Package I have defined a ConnectionManager to
a SQL Server 2005.
Now I am trying to query data in a Visual Studio for Application Script.
I tried the following:
Dim local_SQLConnectionManager As Microsoft.SqlServer.Dts.Runtime.ConnectionManager
Dim local_SQLConnection As New System.Data.SqlClient.SqlConnection
Dim local_SQLDataReader As System.Data.SqlClient.SqlDataReader
Dim local_SQLCommand As New System.Data.SqlClient.SqlCommand
local_SQLConnectionManager = Dts.Connections("Name of ConnectionManager")
local_SQLConnection = CType(local_SQLConnectionManager.AcquireConnection(null), System.Data.SqlClient.SqlConnection)
local_SQLConnection.Open()
local_SQLCommand.Connection = local_SQLConnection
local_SQLCommand.CommandText = "SELECT something"
local_SQLDataReader = local_SQLCommand.ExecuteReader()
If local_SQLDataReader.Read Then
Dts.Variables("Just a variable").Value = local_SQLDataReader.GetString(0)
End If
local_SQLDataReader.Close()
It always stops on the line with the AcquireConnection:
Unable to cast COM object of type 'System.__ComObject' to class type 'System.Data.SqlClient.SqlConnection'. and so on ....
Thanks for any help
Frank Uray
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Feb 3, 2008
I have written some code to programmatically create an SSIS package. The code runs well if I just stick it in a windows form button event handler (e.g. OnClick). The code works well if I wrap it up in a DLL and call the DLL from a windows application. The code works well if I suck the DLL into a Windows Service and a windows client calls the service to create and run the SSIS package. In other words, the code always works when I call from a windows (Forms) application - regardless of how the code is hosted.
Now, if I take the code and stick it in the event handler of a Web Form button - it fails.
If I use my DLL that wraps the code and call the DLL from a web form - it fails.
It I make a remoting call to a windows service that then calls the DLL - it fails.
Note, in my windows service I have taken every possible measure to disassociate the call from the identity of the client. The windows service has a listener thread that places the arguments for the package creation on a queue. The listener thread then signals an event. A different thread then pulls the arguments off of the queue and creates the package.
Mind you, all of this works great if the client to the windows service is a windows application. In fact, as I said, the code always runs if it is called from a windows application (directly or via the windows service). But, if my client to my windows service is an ASP.Net application, then the code always fails. I have no idea why the service would care who its client is - but it seems to. I printed out the identity of the User that owns the thread that the windows service uses to create and execute the package, it is not NETWORK SERVICE or ASPNET or any other user - it is the windows service user - which happens to be the administrator account on my machine.
The package creation always fails in the same place. A call to AcquireConnections for an OleDBDestination fails with COM error 0xC020801C. I assumed this was some sort of permissions error - though with my windows service running as administrator and doing all of the work related to the package, I cannot really understand why.
So, going down the path of permissions, I gave every user on my machine administrative priviliges on the machine and the database. That did not work. I then created a custom ASP.Net Application Pool so I could create a new user. I gave that new user Administrator permissions and it still does not work.
I am running Windows 2003, IIS6, SQL 2005, all 32bit, all on the same local machine which is not part of a domain.
This is truly magical. The code always works when called from windows and it never works when called from ASP.Net - even with a windows service in between.
I am totally stumped. Any help would be greatly appreciated.
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Aug 8, 2006
I have written an SSIS Package that connects to an Oracle database through SQL Authentication. Whenever I execute the package in BIDS it executes without a problem but when I try to schedule the package as a Job I recieve an AcquireConnection Error. Any help?
I have tried the solutions outlined in http://support.microsoft.com/kb/918760 and have read through the KB but have found few solutions that pertain to connecting to remote Oracle databases through SQL Authentication. Any help would be much appreicated.
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Sep 12, 2006
On day 1 of the first package. In playing around with some settings for using variables, I've seemed to have set a few things that are causing issues.
In my dataflow I have a source and target destination with 3 separate lookups. All of these objects utilize the same connection manager. When trying to revert the package to a ProtectionLevel=EncryptSensitiveWithUserKey, I'll see one of the 5 objects fail with a No AcquireConnection issue. I'll stop the debug, test the connection to re-validate it. The next debug run will cause the next object to fail. This repeats in an infinite loop until I get tired of re-validating all of the objects.
What option have I set that has screwed up things?
ControlFlow.Security.ProtectionLevel=EncryptSensitiveWithUserKey
Connection.DelayValidation=False
Connection.RetainSameConnection=False
Any Ideas? Thanks in advance.
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Sep 20, 2006
Hey. I need to substitute a value from a table if the input var is null. This is fine if the value coming from table is not null. But, it the table value is also null, it doesn't work. The problem I'm getting is in the isnull line which is in Dark green color because @inFileVersion is set to null explicitly and when the isnull function evaluates, value returned from DR.FileVersion is also null which is correct. I want the null=null to return true which is why i set ansi_nulls off. But it doesn't return anything. And the select statement should return something but in my case it returns null. If I comment the isnull statements in the where clause, everything works fine. Please tell me what am I doing wrong. Is it possible to do this without setting the ansi_nulls to off??? Thank you
set ansi_nulls off
go
declare
@inFileName VARCHAR (100),
@inFileSize INT,
@Id int,
@inlanguageid INT,
@inFileVersion VARCHAR (100),
@ExeState int
set @inFileName = 'A0006337.EXE'
set @inFileSize = 28796
set @Id= 1
set @inlanguageid =null
set @inFileVersion =NULL
set @ExeState =0
select Dr.StateID from table1 dR
where
DR.[FileName] = @inFileName
AND DR.FileSize =@inFileSize
AND DR.FileVersion = isnull(@inFileVersion,DR.FileVersion)
AND DR.languageid = isnull(@inlanguageid,null)
AND DR.[ID]= @ID
)
go
set ansi_nulls on
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May 10, 2006
Hi,
Trying to get a particular SSIS is package working - while running the Package Installation wizard a package is reported with the following errors:
AcquireConnection method fails with error code 0xC0202009
Then Lookup fails validation and returns code 0xC020801C
The odd thing is the Lookup does not exist in the package, it did exist at one point but was deleted.
I have tried searching the XML and can't find any reference to the Lookup
Any suggestions appreciated...
Thanks,
John
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Mar 14, 2007
I'm creating a small test package that copies a value from an Excel 2007 worksheet into a SQL 2005 database (SP2). When I do an Execute Task, I get the following error:
SSIS Error Code DTS_E_CANNOTACQUIRECONNECTIONFROMCONNECTIONMANAGER. The AcquireConnection method call to the connection manager \loripMandEScorecardsSQLQueryExample.xlsx failed with error code 0xC0202009.
However, if I do a "Preview" in the Editor for this same Excel Source task that fails, the data comes up as I would expect. What am I missing?
Thanks in advance!
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Oct 11, 2006
I open a package in SSIS I get the following errors.Validation error. Create TestKeys For Scan Records: TestKeys Table in AEISIT Import db [1]:The AcquireConnection method call to the connection manager "AEISIT Upload" failed with error code 0xC0202009. ScanUpload.dtsx 0 0 I open my connections in the connection manager and set them to the (local) server and the errors go away.Then I close and reopen the package and the errors are back.What am I doing wrong??
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