oledbconnection

Order of sheets in Excel file while reading with GetOleDbSchemaTable

我只是一个虾纸丫 提交于 2019-11-29 16:51:16
I am using an ACE.OLEDB as below to read an excel file in C#. My Excel file has the following Sheets and in below order: Sheet1, Sheet1 (2), Sheet2 The variable sheetName in my code takes 'Sheet1 (2)' as first sheet instead of 'Sheet1'. My question is how does it determines the order of sheets? string connstring = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filename + ";Extended Properties='Excel 8.0;HDR=NO;IMEX=1';"; // Extra blank space cannot appear in Office 2007 and the last version. And we need to pay attention on semicolon. using (OleDbConnection conn = new OleDbConnection

An OLE DB Provider was not specified in the ConnectionString. 'Provider=SQLOLEDB;

做~自己de王妃 提交于 2019-11-29 14:42:12
i trying to run query using C#, i am getting the following problem An OLE DB Provider was not specified in the ConnectionString. An example would be, 'Provider=SQLOLEDB; my code string strConString = System.Configuration.ConfigurationManager.ConnectionStrings["WorkflowConnStr"].ConnectionString.ToString(); string sqlstr = "select * from table" OleDbConnection myConnection = new OleDbConnection(strConString); try {myConnection.Open();} catch (Exception err) { System.Diagnostics.Debug.WriteLine(err.Message); } OleDbCommand myCommand = new OleDbCommand(sqlstr, myConnection); OleDbDataReader

Difference between Sql Connection and OLEDB Connection

↘锁芯ラ 提交于 2019-11-29 10:02:43
What is the difference between the SQL Connection and OLEDB Connection? Is that OLEDB is common to all (also SQL Server)? To which are all Servers, OLEDB is using? The advantage of using OleDbConnection is flexibility. You can change your database (for instance, move to Oracle)and not have to change your code. If you using SQLServer as backend then use SQLConnection for better performance. check with this link http://social.msdn.microsoft.com/Forums/en-US/vbgeneral/thread/fadb2742-d75a-49fb-a839-b2d4a9183998/ OleDbConnection : You can connect to any database, which you have provide for that.

Problem with using OleDbDataAdapter to fetch data from a Excel sheet

北战南征 提交于 2019-11-29 07:19:46
First, I want to say that I'm out on deep water here, since I'm just doing some changes to code that is written by someone else in the company, using OleDbDataAdapter to "talk" to Excel and I'm not familiar with that. There is one bug there I just can't follow. I'm trying to use a OleDbDataAdapter to read in a excel file with around 450 lines. In the code it's done like this: connection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source='" + path + "';" + "Extended Properties=\"Excel 8.0;HDR=Yes;IMEX=1;\""); connection.Open(); OleDbDataAdapter objAdapter = new

Order of sheets in Excel file while reading with GetOleDbSchemaTable

半腔热情 提交于 2019-11-28 11:16:52
问题 I am using an ACE.OLEDB as below to read an excel file in C#. My Excel file has the following Sheets and in below order: Sheet1, Sheet1 (2), Sheet2 The variable sheetName in my code takes 'Sheet1 (2)' as first sheet instead of 'Sheet1'. My question is how does it determines the order of sheets? string connstring = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filename + ";Extended Properties='Excel 8.0;HDR=NO;IMEX=1';"; // Extra blank space cannot appear in Office 2007 and the last

Difference between Sql Connection and OLEDB Connection

假装没事ソ 提交于 2019-11-28 03:22:24
问题 What is the difference between the SQL Connection and OLEDB Connection? Is that OLEDB is common to all (also SQL Server)? To which are all Servers, OLEDB is using? 回答1: The advantage of using OleDbConnection is flexibility. You can change your database (for instance, move to Oracle)and not have to change your code. If you using SQLServer as backend then use SQLConnection for better performance. check with this link http://social.msdn.microsoft.com/Forums/en-US/vbgeneral/thread/fadb2742-d75a

How To Use OleDb To Create Excel Database

社会主义新天地 提交于 2019-11-28 02:19:34
问题 My task is to take an Access Database and create an Excel file, but I can not seem to CREATE the Excel file that OleDb will use. The Excel file name will be provided by the Engineer running the tool. Each Data Table in the Access Database will become a WorkSheet in the Excel file. Right now, I have one hurtle I can not get over: If the Excel file does not exist, I cannot create it! internal const string XL_FMT = "Provider=Microsoft.{0}.OLEDB.{1};Data Source={2};Mode=ReadWrite;Extended

SSIS Package Not Running as 32bit in SQL Server 2012

北城以北 提交于 2019-11-28 01:02:58
I have a package that I developed in VS2012 (using the SQL Data Tools component) which collects data from a DBF file using the VFPOLEDB provider, and puts it into a database on a SQL Server 2012 X64 server. The project containing the package has the DebugOption of Run64BitRuntime set to false. I have imported this package to the SSIS Package Store of a test and live server (identical setups). The VFPOLEDB provider is installed on both, and I can see in the registry of both machines that it's there for 32bit runtimes. The package runs fine on the test machine, but fails on the live machine. The

Problem with using OleDbDataAdapter to fetch data from a Excel sheet

拥有回忆 提交于 2019-11-28 00:45:13
问题 First, I want to say that I'm out on deep water here, since I'm just doing some changes to code that is written by someone else in the company, using OleDbDataAdapter to "talk" to Excel and I'm not familiar with that. There is one bug there I just can't follow. I'm trying to use a OleDbDataAdapter to read in a excel file with around 450 lines. In the code it's done like this: connection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source='" + path + "';" + "Extended

Why one Public OleDbConnection is deprecated? Alternative to solve the bug: too many connections opened

一个人想着一个人 提交于 2019-11-28 00:14:07
I have to work with a Project made by another developer. A project Win-Form with Visual-Basic code, with MS-Access as db and some OleDbConnections. There is a bug: sometimes the application can't open the OleDbConnection because the max number of connections has been reached on the db. I know the best way to use the connections is this: Using cn As New OleDbConnction(s) ... cn.Close() End Using But in the project there are many classes to work with the db, and in many of these classes there are OleDbConnections with "Friend" visibility, that are opened and closed in different times. For this