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Old June 15th, 2007, 09:48 AM
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Default .NET query

I am trying to use a MS Access Database in an vb.aspx page.

I have written the following two queries.. but they are giving me errors which i am unable to fix.ANy help in this regard would be highly appreciated .

Query 1: Dim sSQL As String = "UPDATE AuthorTable" & _
                             " SET ID ='" & sID & "',Name = '" & sName & "',BookID ='" & sID & "',Date ='" & sDate & ""

It gives me the error: Syntax error in string in query expression '''.
I understand that there is probably a problem with the way I am ending the query. But I do not understand what would be the correct syntax. Please Help.

Query 2:
Dim sSQL As String = "SELECT COUNT(*)" & _
                              "FROM (" & _
                                "SELECT DISTINCT LastName" & _
                                 " FROM Authors" & _
                              "WHERE Month = '" & sMonth & "' AND ID = '" & sID & "')"

Error: Operator '&' is not defined for string "SELECT COUNT(*)FROM (SELECT DIST" and type 'ListItem'.

Would really appreciate a quick response.

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Old June 15th, 2007, 06:56 PM
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I hate doing SQL strings like this. Try this for your first query:

Dim sSQL as string = String.Format("Update AuthorTable SET ID ='{0}', Name = '{1}', BookID = '{0}', Date = '{2}'", sID, sName, sDate)

and i dont believe you SQL query is corret in the second account so try this instead

sSql = String.Format("Select count(*) from Authors where lastName in(SELECT DISTINCT lastName from authors where month='{0}' and id = '{1}')", sMonth, sID)

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Old June 17th, 2007, 01:30 AM
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for the first error, check the data type of the fields, and make sure that ur string is right, as for the second one... can u really do anything like that in sql!!! as dparsons said, i really don't think you can do that mate :) .. although i do like the idea :)

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Old June 19th, 2007, 03:36 PM
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Thanks.. Let me try what you suggested.
well I was able to run the second query in access database and also as a query in a table adapter. So its correct though the problem now is that I want to use the count to decide the number of columns that the table( on the web page) will have.
Is there a way I can include a table adapter in aspx page, use the count variable and include that in a for loop creating rows determined on this count?

i.e for i = 1 to count
{ build a row
and display the last name as a label there)

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