Android Question Data Exist in the database

Sub RegisterEntry
    Private Query As String
    Private cursor1 As Cursor
   
    Query = "SELECT * FROM adminclient WHERE idnumber = ?"
    cursor1 = sql1.ExecQuery2(Query, Array As String(REGid.text))
   
    If cursor1.RowCount > 0 Then
        ....

Sub RegisterEntry
    Private Query As String
    Private cursor1 As Cursor
   
    Query = "SELECT * FROM adminclient WHERE (idnumber = ?) OR (firstname = ? AND middlename = ? AND lastname = ?)"
    cursor1 = sql1.ExecQuery2(Query, Array As String(REGid.text, REGfirst.text, REGmid.text, REGlast.text))
   
    If cursor1.RowCount > 0 Then
        ....