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Example Analysis of ADO Recordset

2025-01-16 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

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This article mainly explains the "ADO recordset example analysis", the content of the article is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "ADO recordset example analysis" bar!

Excel does not provide detailed schema information about its data for ADO recordsets as relational databases do. Therefore, the driver must scan at least a few rows of existing data to guess the data type of each column, so it can feel interesting and attractive in the process of using it.

The rows and columns in the ADO recordset worksheet are very similar to those in the database. As long as users remember that Microsoft Excel is not a relational database management system and recognize the limitations of this fact, in many cases Excel and its tools can be used to store and analyze data, Microsoft ActiveX Data Objects allows us to treat Excel workbooks as if they were databases. The ADO recordset article discusses how to do this through the following sections:

The tests in this article were performed using Microsoft Data Access Components (MDAC) 2.5 on Microsoft Windows 2000 with Visual Basic 6.0 Service Pack 3 and Excel 2000. The ADO recordset may not confirm or discuss different phenomena that users may observe when using different versions of MDAC, Microsoft Windows, Visual Basic, or Excel.

The provider of the ODBC driver (this article calls it the "ODBC provider" for simplicity) also needs only two pieces of information to connect to the Excel data source: the driver name and the path and file name of the workbook.

Important: the ODBC connection for Excel defaults to read-only. The ADO recordset LockType property setting does not override this connection level setting. If you want to edit the data, you must set the ReadOnly in the connection string or DSN configuration to False. Otherwise, the following error message appears:

Dim cn as ADODB.Connection Set cn = New ADODB.Connection With cn Provider = "MSDASQL" ConnectionString = "DSN=MyExcelDSN;" Open End With thank you for reading, the above is the "ADO recordset example analysis" content, after the study of this article, I believe you have a deeper understanding of the ADO recordset example analysis of this problem, the specific use also needs to be verified by practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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