Prevent The Duplicate Value
i have a form by asp and database by MS access.so i want to prevent the duplicate value in empID because when i add a new employee with the same id ASP gives me this error.
Error Type:
Microsoft OLE DB Provider for ODBC Drivers (0x80040E14)
[Microsoft][ODBC Microsoft Access Driver] The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship. Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries and try again.
/employee/admin/addemp1.asp, line 48
so i want the employee to get a message like this empID already exist or somthing like this.
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how to prevent the application from inserting an already exisiting record. Code:
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I am adding simple records to a fairly simple access database with the following code
rsEntry.Fields("Player1") = ShortName(Player1)
rsEntry.Fields("Player2") = ShortName(Player2)
'Write the updated recordset to the database
rsEntry.Update
rsEntry.Close
adoCon.Close
Set rsEntry = Nothing
Set adoCon = Nothing
How can I SIMPLY :-) prevent duplicate records from being added? I know I can set the index property on the fields but that mean handling the errors - not sure how to do this.
OR I could write the code to seach the DB before update - which may be the only way :-(
Is there a simple way?
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when i want to insert my data into my table but i encounter the following error
Error Type:
Microsoft OLE DB Provider for SQL Server (0x80040E2F)
Violation of PRIMARY KEY constraint 'PK_sDetail'. Cannot insert duplicate key in object 'sDetail'.
/fsearch/InsertTable.asp, line 153
sql = "Insert into sDetail values('" & semyear & "','" & sem & "','" _
& modulecode & "','" & tutorial & "','" _
& semday & "','" & startTime & "','" _
& endTime & "','" & location & "','" _
& roomno & "','" & tutor & "')"
oConn.execute sql 'line 153
how to solve this error can anyone help ?
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/myConn.asp, line 7
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