[英]How to update specific column in vb.net 2013 SQL Server 2008
我有4个表格: Code_Product, Name_Product, Color_Product, Size_Product
和代码:
Public Sub ExecuteQuery(query As String)
Dim command As New SqlCommand(query, connection)
command.ExecuteNonQuery()
End Sub
Private Sub btnUpdate_Click(sender As Object, e As EventArgs) Handles btnUpdate.Click
Dim updateQuery As String = "UPDATE tbl_Product SET Name_Product = '" & txtNameProduct.Text & "' , Color_Product = '" & txtColorProduct.Text & "', Size_Product = '" & txtSizeProduct.Text & "' where Kode_Produk= '" & txtKodeProduk.Text & "'"
ExecuteQuery(updateQuery)
MessageBox.Show("Data has been changed")
注意:代码工作正常。
但是,代码更改了所有列,而我只想只更改一列。 怎么样?
替换这条线
Dim updateQuery As String = "UPDATE tbl_Product SET Name_Product = '" & txtNameProduct.Text & "' , Color_Product = '" & txtColorProduct.Text & "', Size_Product = '" & txtSizeProduct.Text & "' where Kode_Produk= '" & txtKodeProduk.Text & "'"
有了这个。 仅传递您要更新的列。
Dim updateQuery As String = "UPDATE tbl_Product SET Name_Product = '" & txtNameProduct.Text & "' where Kode_Produk= '" & txtKodeProduk.Text & "'"
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