following is the code
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- Imports Microsoft.Office.Core
- Imports System.Runtime.InteropServices
- Imports System.Data.OleDb
- Public Class Form1
- Dim cmd1 As OleDbCommand
- Dim dr1 As OleDbDataReader
- Dim str As String=" "
- Try
- cn = New
- OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data
- Source=C:\Folder\example_excel.xls;Extended Properties=Excel 8.0;")
- 'provider to be used when working with excel database
- cn.Open()
- cmd1 = New OleDbCommand("select * from emp where
- rollno!="+str+"", cn)
- MsgBox("1")
- dr1 = cmd1.ExecuteReader()
- Catch
- End Try
Syntax error (missing operator) in query expression 'rollno!='
i want to retrieve records with empty fields...
please help me in this problem...