WHEN we need to call Oracle Database Function from vb.net Code Using System.Data.Oracle Client we will need to Pass Function Parameters and receive Function Return Value
so this action Can be Handled by the following Code Sample
NOTE: I have db function called ENCRYPT_STR S have two input arguments and one output return value so , i declared Oracle Command and define it's type as Stored Procedure and pass command text as SchemaName.FunctionName
then deal with command to add parameters and receive Return value and return it after .
so this action Can be Handled by the following Code Sample
NOTE: I have db function called ENCRYPT_STR S have two input arguments and one output return value so , i declared Oracle Command and define it's type as Stored Procedure and pass command text as SchemaName.FunctionName
then deal with command to add parameters and receive Return value and return it after .
Public Function EncriptLoginData(ByVal username As String, ByVal EncKey As String) As String'define Oracle Command
Dim Result_Encripted As String = String.Empty
Dim cmd As New Data.OracleClient.OracleCommand
cmd.CommandType = Data.CommandType.StoredProcedure
cmd.CommandText = "MAIN.ENCRYPT_STR"
cmd.Connection = OConn
OConn.ConnectionString = ConnString
If OConn.State <> ConnectionState.Open Then OConn.Open()
With cmd
.Parameters.Add("var1", OracleType.VarChar, 100).Direction = ParameterDirection.Input
.Parameters.Add("p_key", OracleType.VarChar, 100).Direction = ParameterDirection.Input
.Parameters.Add("encUserName", OracleType.VarChar, 4000).Direction = ParameterDirection.ReturnValue
.Parameters("var1").Value = username
.Parameters("p_key").Value = EncKey
End With
cmd.ExecuteScalar()
Result_Encripted = cmd.Parameters("encUserName").Value.ToString()
cmd.Dispose()
OConn.Close()
OConn.Dispose()
Return Result_Encripted
End Function