Query text fileds with ADO/OLEDB connection (Set command over ADO is it pos

Dear Oracle users,
I try to query the TEXT field of dba_views but run into the problem that the return
lengths is limited to 80 characters.
On iSQLplus I can use the command e.g. "set long 1000".
If I try to use this command over the ADO connection before I start my SQL query I get an error (assumingly because the set commandos cannot be used over ADO connections ?).
Is there a way to be able to query text fields with more than 80 characters using ADO/OLEDB ?
Hope someone can help.
Best regards,
Daniel Wetzler

Hi Jon,
Well, I think I've got it working, but I'm not really happy with my work around.
I tried upgrading to version 2 of .NET (I was using v1.1) But there was no change, I also modified the code so that it destroyed the connection to the ADO after each INSERT and before each get string, but it still failed in the middle of the same directory.
I've just inserted a wait statment which delays every itteration by 200 ms and that actually seems to have fixed things... I say "Seems" because I've been running the program for 45 minutes now and I'm less than a third of the way through the directories! (previous execute time was 7 mins)
This delay occured to me because the problems started when I changed the parsing sequence to improve the speed of the opperation.
However, this is not exactly an ideal sollution... Do you think the problem is with the ActiveX "connection" or the actual database connection?
Any help would be appreciated because the running speed is now immpractical and I'm not sure why this should have worked.
Thanks - Pete

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Syntax for querying between dates with ADO

Hello,
I am connecting to Oracle tables using ADO in Microsoft Access. I am not familiar with Oracle Sql. I am trying to execute the following query string but am not retrieving and records:
strSql = "SELECT COUNT(*) " _
& "FROM CCC2.CASE_EPRP WHERE CALL_DATE >= '1/1/2002' " _
& "AND CALL_DATE <= '2/1/2002'"
I can retrieve a record count if I only have the first date, but if I use the date range above the query returns zero records even though there are records for that date range. Could someone explain the correct way to write this query?
Thanks,
Rich

You really don't want to rely on implicit string to date conversion ever. Oracle will use your NLS date settings to do the conversion, but different users (and different databases) may have this set differently, so one user might have '2/1/2002' convert to February 1, 2002 while another user might have it convert to January 2, 2002. A third user might not be able to convert the string at all.
The proper way to do this is to use either Oracle syntax
"where call_date >= to_date( '1/1/2002', 'MM/DD/YYYY' )
and call_date <= to_date( '2/1/2002', 'MM/DD/YYYY' )"
or to use the ODBC date escape sequence, {d }, to create the dates.
If this isn't the problem, there may be issues because Oracle dates have a time component. If you don't specify a time, Oracle will default to midnight, so any call_date records after 12:00am on 2/1/2002 won't be found.
Justin

Crystal Report with text(csv) data file, can we set it as input param? C#

Hi,
I am new to the forums and posted a question which belonged to the .net - SAP Crystal reports group.
Can someone help me with my problem? following is the thread that I have started.
Crystal Report with text(csv) data file, can we set it as input parameter?
Thank you in advance.

Looking at the original thread, you are connecting to the text file via the DAO database engine:
"I added the text file as follow, new connection -> Access/Excell (DAO) -> select the file and the database type as text"
Thus I would use the same code for changing the text file as for changing an Access database. See Kbase [1218178 - Error: "Logon failed" when connecting to Access database in .NET application|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes_boj/sdn_oss_boj_bi/sap(bD1lbiZjPTAwMQ==)/bc/bsp/spn/scn_bosap/notes%7B6163636573733d36393736354636443646363436353344333933393338323636393736354637333631373036453646373436353733354636453735364436323635373233443330333033303331333233313338333133373338%7D.do] for more information. If that does not work, you may want to consider connecting via ODBC or feeding the data from the text file to and ADO .NET dataset and pointing the report at the dataset.
Ludek
Follow us on Twitter http://twitter.com/SAPCRNetSup
Got Enhancement ideas? Try the [SAP Idea Place|https://ideas.sap.com/community/products_and_solutions/crystalreports]

SSRS 2012 - Windows Server 2012 R2 issue with OLEDB Connection String

Hoping someone can help. As stated above, we are running SQL Server 2012 with SP1 on Windows Server 2012 R2. When I create a Data Source as follows in Reporting Services, I receive the following error message. Any thoughts on why this fails? The same data
source works on Windows Server 2008 R2 Enterprise SQL Server 2008 R2.
Data Source type: OLE DB
Connection string: Provider=Microsoft.ACE.OLEDB.12.0;Data Source="\\networknamehere\CSVFiles";Mode=Read;Extended Properties="text;HDR=YES;FMT=CSVDelimited"
ERROR: Throwing Microsoft.ReportingServices.ReportProcessing.ReportProcessingException: , Microsoft.ReportingServices.ReportProcessing.ReportProcessingException: Cannot create a connection to data source 'CSV_Datasource'. ---> System.Data.OleDb.OleDbException:
Unspecified error
at System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection)
at System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject)
at System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup)
at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.OleDb.OleDbConnection.Open()
at Microsoft.ReportingServices.DataExtensions.ConnectionExtension.Open()
at Microsoft.ReportingServices.Diagnostics.DataExtensionConnectionBase.OpenConnection(IProcessingDataSource dataSourceObj, DataSourceInfo dataSourceInfo, IDbConnection conn)
--- End of inner exception stack trace ---;

Hi ABAA101,
According to your description, when you use csv file as data source in SSRS 2012 report, you got the error message.
I tested the issue in my local machine, due to some policy restrictions, I could not install Access in my local machine. To workaround the issue, we can use the connection string like below:
Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\report;
Extended Properties="text;HDR=Yes;FMT=Delimited"
The csv file is stored in report folder in C driver.
In Query text box in the dataset, we can use the query like below:
Select * from new.csv
If you have any more questions, please feel free to ask.
Thanks,
Wendy Fu
Wendy Fu
TechNet Community Support

Crystal Report with text(csv) data file, can we set it as input parameter?

Hi,
I am a new user of Crystal Reports 2008.
I have created a report with charts in it. The input data comes from a csv text file.
Can I set the name of this text file as an input parameter?
as I need to generate 44 similar reports with different text filenames(and data)?
Thank you.
Regards

Brian,
Thanks much.
I did exactly what you said.
Just to see any change, I first gave a bad report file name just to see if I am accidentally pointing to a different file,
but I got an error saying report not found.
Then I renamed my original datafile name and generated a report and it still generated one without giving an error.
Then I also gave a junk name to the logoninfo and printed that name, the new name was assigned to logoninfo, but the code did not error out.
It ended up generating the report.
Now here is what I think is happening,
1) The save data in report option seems to be still on even though I have turned it off in 2 locations
a) file -> Report Options
b) file -> Options -> Reporting tab.
2) For some reason the logoninfo is getting ignored as well.
Since I did not see any answers yesterday I posted a link to this thread on the .Net forum
Crystal Report with text(csv) data file, can we set it as input param? C#
and Ludek Uher says that I am connecting to the text file via a DAO database engine and so need to use the same code for changing the text file as for changing an Access database.
But the link he gave me tells me to try the same thing that we have been trying..
Here is my plan,
1) I will first try and find out why my save data with report option is still on ( but it shows off in Crystal ).
2) why is LogonInfo getting ignored.
Meanwhile any suggestions from anyone are welcome.

Unfamilair with ADO DB connections

Hi I am not familiar with ADO DB connection.
I am using Labview 7.1, MySQL and LabSQL.
To get LabSQL and MySQL, you can find http://jeffreytravis.com/lost/labsql.html and http://dev.mysql.com/downloads/mysql/4.1.html.
In those LabsQL vi functions, there are no vi descriptions for connections.
I tried finding similar descriptions to compare from ADO websites. I am getting confused.
Here are LabSQL vi functions:-
1) ADO Connection Create.vi - means Create an connection to database?
2) ADO Connection Open.vi - means Open the connection to database?
3) ADO Connection Close.vi - means Close the connection to database?
4) ADO Connection Destroy.vi - means Destroy the connection to database?
Are ADO Connection Close and Destroy same?
And I am not familiar with the sequence of those vi.
For eg. I read the procedure from http://www.w3schools.com/ado/ado_intro.asp
Accessing a Database from an ASP Page
The common way to access a database from inside an ASP page is to:
Create an ADO connection to a database
Open the database connection
Create an ADO recordset
Open the recordset
Extract the data you need from the recordset
Close the recordset
Close the connection
So when I cannot find LabSQL functions for eg Open recordset and close recordset, so what is the equivalent ADO function to "destroy the connection"?
And here are my attached, and I there's something i do not understand,
And my question for my attached, typing my show processlist in command prompt,
When run attached for the first time, "show processlist" command show no host to "test" db.
when click to open database, "show processlist" command shows my host to "test" db.
When click to close database, "show processlist" command still shows my host to "test" db.
Why is this so? By right, there should be no sign of "test" db. Do i have to use ADO Connection Destroy vi to destroy connection?
Please advise
Thanks
Attachments:
testdb_connection.vi ‏68 KB

There are two problems with trying this on LV 7: I used Shared Variables which are not supported on 7 and I am not sure if what I did exists on ADO.Net 1.1. I created a DLL using Visual Studio 2005 and ADO.Net for SQL Server 2005. The DLL code is C#:
//VitalData.cs
//Items of data class;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
using System;
using System.Collections.Generic;
using System.Text;
namespace SaveData
public class VitalData
public Double Value;
private Double Last;
public DateTime Time;
public String Name;
public VitalData(String InName, Double InValue, DateTime InTime)
Name = InName;
Value = InValue;
Time = InTime;
Last = -999999.9;
public override String ToString()
String Temp;
Temp = Name + ";" + Value.ToString() + ";" + Time.ToLongTimeString();
return Temp;
public bool SameValue()
if (this.Value == this.Last)
return true;
else
return false;
public void Update(DateTime TIn, Double VIn)
Last = Value;
Value = VIn;
Time = TIn;
//SaveData.cs
//::::::::::::Functional class for DLL :::::::::::::::::
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlTypes;
using System.Data.SqlClient;
using System.Windows.Forms;
using System.IO;
namespace SaveData
// Declaration.
public class SaveData
String connSQL, strSQL, ValuesIn;
List DataList;
public SaveData()
DataList = null;
connSQL = @"Data Source=PQLSVR2\SQLExpress;" +
"Initial Catalog = VITAL;Integrated Security = True;";
DataList = new List();
public int Add(String Input)
DateTime InTime;
int count;
VitalData DataLine;
InTime = DateTime.Now;
String[] Lines;
String Sensor;
Double Value;
ValuesIn = Input;
Lines = Input.Split('\n');
foreach (String line in Lines)
String[] parameters = line.Split(';');
Sensor = parameters[0];
Value = System.Convert.ToDouble(parameters[1]);
if (Find(Sensor) == null)
DataLine = new VitalData(Sensor, Value, InTime);
DataList.Add(DataLine);
else
DataLine = Find(Sensor);
DataLine.Update(InTime, Value);
foreach (VitalData element in DataList)
int local;
if(!element.SameValue())
try
SqlConnection cn = new SqlConnection(connSQL);
strSQL = "Insert INTO dbo.Measurements (DateTime, Value, Channel) " +
"VALUES ('" + element.Time.ToShortDateString() + " " + element.Time.ToLongTimeString() + "','" +
element.Value.ToString() + "','" + element.Name.ToString() + "')";
cn.Open();
try
SqlDataAdapter da = new SqlDataAdapter(strSQL, connSQL);
SqlCommand cmd = new SqlCommand(strSQL, cn);
local = cmd.ExecuteNonQuery();
cn.Close();
catch (SqlException ex)
MessageBox.Show(ex.Message, "SqlDataAdaptor Failure",
MessageBoxButtons.OK, MessageBoxIcon.Error);
return 0;
catch (SqlException ex)
MessageBox.Show(ex.Message, "SQL NonQuery Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
return 0;
count = DataList.Count;
return count;
private VitalData Find(String name)
foreach (VitalData d in DataList)
if(d.Name.CompareTo(name) == 0)
return d;
return null;
The data is formatted to a long string. I used a second DLL on the client side to look up values on the string from the shared string variable to send the resulting data values through the network:
//StringToVars.cs
//::::::::::plits and returns data elements encapsulated in long shared string::::::::::::::::::::::::::
using System;
using System.Collections.Generic;
using System.Text;
namespace StringToVars
public class StringToVars
String InString;
int Count;
public StringToVars()
InString = "";
public void Update(String vars)
InString = vars;
public Double GetValue(String var)
String[] temp;
Double Value;
String[] List = InString.Split('\n');
foreach (String s in List)
if (s.Contains(var))
temp = s.Split(';');
Value = System.Convert.ToDouble(temp[1]);
return Value;
return 0.0;
public int VarsCount()
String[] temp = InString.Split('\n');
Count = temp.Length;
return Count;
public String All()
return InString;
I was able to load the resulting DLL code into LabVIEW 8.21 > 8.6. LabVIEW 7 or 7.1 may have problems with this if you use one of the newer Microsoft compilers as it requires a CLR that compiles for DotNet 2.0 or 3.x. You might be bale to get this to work if DotNET 1.1 is supported and you compile using Visual Studio 2003 (which really isn't a very stable development environment compared to the two versions since).
Good Luck.

"Invalid Character" error when executing a 13KB query with ADO

Hello
I want to execute a query using an ADO Recordset using the Open method. When calling this method, an ORA-911 "Invalid Character" raises. I can say that the SQL runs fine, because using the SQL*Plus utility it works.
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What could be wrong?
Thanks a lot.

Well there's a 32K limit in Oracle. (But it can be overcome using dynamic sql).
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In a document with several sections, in section VIII and IX one cannot select the text of the page foot nor set the pointer in it; so, one cannot write nor change the page foot text. Please help!

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Yvan KOENIG (VALLAURIS, France) mardi 23 août 2011 15:44:24
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Hello experts, this is my situation:
I have two databases A and B, the same version 11.1.0.7, the same OS Suse Linux Enterprise 10 but with different character sets, A has WE8MSWIN1252 while B has AL32UTF8. The database B is my XML DB repository so there I have some XML type tables. I need to query this tables from the database A using a dblink and in fact I have done that but the XML content is trasformed due to the different character sets between the databases. Some time there are data loss and some time there are data missmatch.
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Hi all,
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I gave the query
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Venket,
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If I misunderstood, please feel free to let me know.
Regards & Fei
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¡Hi!
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Query text fileds with ADO/OLEDB connection (Set command over ADO is it pos

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