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Working with SQL

Posted on 1998-09-14
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Last Modified: 2011-09-20
How can I, without using controls, connect to an sql database and fetch data from there? I'm using vb enterprise edition version 5.0.
Please insert source code.
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Question by:cybernide
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haas090897 earned 200 total points
ID: 1434691
First you need to set a which type of data access you want. That is done with the menu Projects/References
I always use Microsoft Remote Data Objects 2.0.
If you prefere some other dataaccess please let me know.

Here is the code:

Dim db As rdoConnection      'Database connection
Dim rs As rdoResultset   'The resultset with data
Dim i as integer

Set db=rdoEnvironments(0).OpenConnection("Inca", _ rdDriverComplete, False)
Set rs=db.OpenResultset("SELECT * FROM MyTableName",_ rdOpenForwardOnly) 'a forwardonly scrolling resultset,
'you may want another resultset type for writing data

Do until rs.eof
   For I = 0 to Ubound(MyTextControlArray)
      MyTextControlArray(i).text=rs(MyTextControlArray.DataField)
      'This row takes the DataField name from the textcontrol to catch the data from the resultset field with the same name
   Next
   rs.movenext
loop
rs.Close

'This code will read data from database into some text controls named MyTextControlArray, but you can do some other stuff with the data. If you like to write data back to database you can
change the resultset type to rdOpenDynamic and then use this code:

   rs.Edit ' .addNew if you want a new record
   For I = 0 to Ubound(MyTextControlArray)
      rs(MyTextControlArray.DataField)=MyTextControlArray(i).text
      'You may want to check the datatype before writing to rs
   Next
   rs.Close
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by:haas090897
ID: 1434692
In my example above, please note that Inca is the name of the ODBC Datasource name which i set up in Controlpanel
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