oledb

VFP .NET OLEdb provider does not work in Win 64-Bits. Help

I wrote a windows service using VB that read some legacy data from Visual Foxpro Databases to be inserted in SQL 2005. The problem is this use to run fine in Windows server 2003 32-Bits, but the client recently moved to Windows 2003 64-Bits and now the service won't work. I'm getting a message the the VFP .NET OLEdb provider is not found...

What is this 'Multiple-step OLE DB' error?

I'm doing a little bit of work on a horrid piece of software built by Bangalores best. It's written in mostly classic ASP/VbScript, but "ported" to ASP.NET, though most of the code is classic ASP style in the ASPX pages :( I'm getting this message when it tries to connect to my local database: Multiple-step OLE DB operation generated ...

Performance issues regarding Access 2003 and the OLE Object data type

In MS Access 2003 (I know, I know), I'm using the OLE Object data type to persist the sate of some objects that are marked as serializable (just using a IO.BinaryFormatter to serialize to a MemoryStream, and then saving that to the db as a Byte array). Does this work pretty much like a varbinary, or a blob? Are there any gotchas loomin...

Is there anything wrong with this query?

INSERT INTO tblExcel (ename, position, phone, email) VALUES ('Burton, Andrew', 'Web Developer / Network Assistant', '876-9259', [email protected]') I've got an Access table that has five fields: id, ename, position, phone, and email...each one is plain text field with 50 characters, save for position which is 255 and id which is an aut...

Managed OleDB provider written in C#

An OleDB provider is a binary implementing COM interfaces provided by Microsoft. From that it seems to be possible to create a provider using C#. Is that correct? Is there a sample demonstrating that? If not, would you discourage me from doing that? I see that there are multiple unmanaged samples but I can't find any managed. ...

Writing into excel file with OLEDB

Does anyone know how to write to an excel file (.xls) via OLEDB in C#? I'm doing the following: OleDbCommand dbCmd = new OleDbCommand("CREATE TABLE [test$] (...)", connection); dbCmd.CommandTimeout = mTimeout; results = dbCmd.ExecuteNonQuery(); But I get an OleDbException thrown with message: "Cannot modify the design of...

what is the difference between OLE DB and ODBC data sources?

I was reading a MS Excel help article about pivotcache and wonder what they mean by OLE DB and ODBC sources ...You should use the CommandText property instead of the SQL property, which now exists primarily for compatibility with earlier versions of Microsoft Excel. If you use both properties, the CommandText property’s v...

How to check if an OLEDB driver is installed on the system?

Hi! How can I make sure that a certain OLEDB driver is installed when I start my application? I use ADO from Delphi and would like to display a descriptive error message if the driver is missing. The error that's returned from ADO isn't always that user-friendly. There are probably a nice little function that returns all installed drive...

When reading a CSV file using a DataReader and the OLEDB Jet data provider, how can I control column data types?

In my C# application I am using the Microsoft Jet OLEDB data provider to read a CSV file. The connection string looks like this: Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\Data;Extended Properties="text;HDR=Yes;FMT=Delimited I open an ADO.NET OleDbConnection using that connection string and select all the rows from the CSV file w...

What is the OleDb equivalent for INFORMATION_SCHEMA

In SQL you can use SELECT * FROM INFORMATION_SCHEMA.TABLES etc to get information about the database structure. I need to know how to achieve the same thing for an Access database. ...

Good .NET ORM Framework that supports OleDb and Stored Procedures?

A typical stored procedure in our system accepts around 20 or so parameters. There's no chance of refactoring these stored procedures either. I've basically resorted to writing my own code generator that wraps these SP's into (database provider agnostic) "Command" objects, with their public properties corresponding to the SP parameters...

Case Sensitivity when querying SQL Server 2005 from .NET using OleDB

I have a query that I'm executing from a .NET application to a SQL Server database and it seems to take quite a while to complete (5+ Minutes). I created a test app in c# to try to see what was talking so long (the query should return quickly). As I was reconstructing the query by adding in elements to see which portion was taking so...

Oracle instant client with OraOLE DB provider?

Is it possible to use oracle instant client for application that use oraoledb driver for connecting to oracle 9i DB. ...

Import Text File into generic Database using SQL

Hi, I am currently trying to import a semi-colon delimited text file into a database in c# using OleDb where I don't know the type (SQL Server, Access, Oracle, MySQL, postgreSQL, etc.) Currently I'm reading in the file as a database using the Jet text reader then creating a prepared insert statement, populating the fields, then commiti...

oledb/ado.net: Get the command's text, with all parameters replaced

Is it possible to get the text of an OleDbCommand with all parameters replaced with their values? E.g. in the code below I'm looking for a way to get the query text SELECT * FROM my_table WHERE c1 = 'hello' and c2 = 'world' after I finished assigning the parameters. var query = "SELECT * FROM my_table WHERE c1 = ? and c2 = ?"; var c...

From SPSS, import data from SQL Server Analysis Services

I'm wondering if there is an easy way to load data from analysis services (SSAS) into SPSS. SPSS offers a product to put SPSS functionality on the analysis server, but to me this is backwards. I don't want to learn about SPSS or have the SPSS users in the office learn something else. I just want to give the analysis services data to...

How to determine MS Access field size via OleDb

The existing application is in C#. During startup the application calls a virtual method to make changes to the database (for example a new revision may need to calculate a new field or something). An open OleDb connection is passed into the method. I need to change a field width. The ALTER TABLE statement is working fine. But I would ...

System.Data.OleDb.OleDbException: Invalid internet address. How do you connect to excel files located on a webserver using OleDb

I'm trying to create an OleDb connection to an Excel file that is located on a SharePoint server. The example code I'm playing with at the moment throws an OleDb exception "Invalid internet address": public static void ConnectToRemoteExcelFile() { string connectionString = String.Format("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=...

Ignored columns using vb6 to extract from excel

I am trying to extract a table of values from an excel (2003) spreadsheet using vb6, the result of which needs to be stored in a (adodb) recordset. The table looks like this: Name Option.1 Option.2 Option.3 Option.4 Option.5 Option.6 ----------------------------------------------------------------- Name1 2 ...

How in .Net do I Import Values from a CSV in the format I want using OleDB?

I have a CSV file that has a column that contains strings that look like integers. That is they should be dealt with as strings, but since they are numbers they appear to be imported as integers (dropping off the leading zeroes). Example Data: 0000000000079 0000999000012 0001002000005 0004100000007 The problem I'm seeing is that t...