Data access via stored procedure - Return type as PLSQLAssociate array

Question

Hi,
I get an error as array bind type must match pl/sqldata type when i execute a stored proc.
My stored proc looks like this:
PROCEDURE Datasearch
(p_type in varchar2,
p_empid in varchar2,
p_empcode out tempid,
p_lname out tlname,
p_fname out tfname,
p_nickname out tnickname,
p_position out tposition,
p_startdt out tstartdt,
p_status out tstatus,
p_loastart out tloastart,
p_loaend out tloaend,
p_xchange out txchange,
p_trx out ttrx,
p_enddt out tenddt,
p_hfind out thfind)
is
... end Empsearch
And I am trying to fire this stored proc using the following C# code:
OracleConnection con = new OracleConnection();
con.ConnectionString = "ValidConnectionString";
con.Open();
Console.WriteLine("Connected to Oracle" + con.ServerVersion);
string cmdTxt = "begin MyPack.Datasearch(:1, :2, :3, :4, :5, :6, :7, :8, :9, :10, :11, :12, :13, :14, :15); end;";
OracleCommand myCMD = new OracleCommand(cmdTxt, con);
//Input params
myCMD.Parameters.Add("1", OracleDbType.Varchar2).Value = "All";
myCMD.Parameters.Add("2", OracleDbType.Varchar2).Value = "1129";
myCMD.Parameters[0].Direction = ParameterDirection.Input;
myCMD.Parameters[1].Direction = ParameterDirection.Input;
//Output params
OracleParameter Param3 = myCMD.Parameters.Add("3", OracleDbType.Int16);
OracleParameter Param4 = myCMD.Parameters.Add("4", OracleDbType.Varchar2);
OracleParameter Param5 = myCMD.Parameters.Add("5", OracleDbType.Varchar2);
OracleParameter Param6 = myCMD.Parameters.Add("6", OracleDbType.Varchar2);
OracleParameter Param7 = myCMD.Parameters.Add("7", OracleDbType.Varchar2);
OracleParameter Param8 = myCMD.Parameters.Add("8", OracleDbType.Date);
OracleParameter Param9 = myCMD.Parameters.Add("9", OracleDbType.Varchar2);
OracleParameter Param10 = myCMD.Parameters.Add("10", OracleDbType.Varchar2);
OracleParameter Param11 = myCMD.Parameters.Add("11", OracleDbType.Varchar2);
OracleParameter Param12 = myCMD.Parameters.Add("12", OracleDbType.Varchar2);
OracleParameter Param13 = myCMD.Parameters.Add("13", OracleDbType.Varchar2);
OracleParameter Param14 = myCMD.Parameters.Add("14", OracleDbType.Date);
OracleParameter Param15 = myCMD.Parameters.Add("15", OracleDbType.Varchar2);
//test ends
for (int i = 2; i < 15; i++)
myCMD.Parameters.Direction = ParameterDirection.Output;
myCMD.Parameters[i].CollectionType = OracleCollectionType.PLSQLAssociativeArray;
myCMD.Parameters[i].Value = null;
myCMD.Parameters[i].Size = 3;
myCMD.Parameters[i].ArrayBindSize = new int[3] { 20, 20, 20 };
myCMD.ExecuteNonQuery();
I get an error on the above ExecuteNonQuery statement..
Any help/pointer will be highly appreciated.
-Cheers

Answer 1

it appears you are not creating the int array correctly (please correct me if I am wrong)
we've created a helper class to alleviate the need for most of the manual coding, so in a gist:
param.ArrayBindSize = BindArraysToSize()
'whereas the collectionObjects is a simple array list containing the values that we intend for our assoc. arry
        Private Function BindArraysToSize() As Integer()
            Dim ArrBindSize(collectionObjects.Count - 1) As Integer
            For i As Integer = 0 To collectionObjects.Count - 1
                ArrBindSize(i) = collectionObjects(i).ToString().Length
            Next i
            Return ArrBindSize
        End Functionbut for the exact issue you are having; you need to assign the values on the NEW (VS ought to warn you: "The short has no constructors")
try
            Dim ar(4) As Int16 '= {1, 2, 3, 4, 5}
            For i as Integer = 1 to 5
               ar(i-1) = i
            Next i
pStatus.ArrayBindSize = ar
OR
            Dim ar2 As Int16() = {1, 2, 3, 4, 5}
pStatus.ArrayBindSize = ar2
OR
            Dim ar3 As Int16() = New Int16(4) {1, 2, 3, 4, 5}
pStatus.ArrayBindSize = ar3
OR
pStatus.ArrayBindSize = New Int16(4) {1, 2, 3, 4, 5}