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06.07.2008 at 03:18PM PDT, ID: 23466565
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8.5

SQL Server CLR Procedure Problem

Asked by andrepires in SQL Server 2005, C# Programming Language

Tags: , , ,

Hello friends.
I'm trying to create a CLR procedure that should return data combined from 2 tables called Pessoas and Documentos (Pessoas and Documentos stands for Persons and Documents).
When I execute the procedure it gives an error saying that a DataReader that uses the Command is already open and
should be closed first.
After some research I found that the CRL uses the context connection which allows only one reader using the connection each time, so now I have a big problem...
Question 1)
Is there any way to user a connection other than the context connection in a CLR procedure?

Question 2)
Please, take a look on the  attached code and tell me if there a way I can implement it:

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[Microsoft.SqlServer.Server.SqlProcedure]
    public static void spMontaMala()
    {
        SqlCommand cmdPessoas = null;
        SqlDataReader reader = null;
        SqlDataRecord record = null;
 
        record = new SqlDataRecord(CreateFields());
 
        ArrayList campos = new ArrayList();
 
        SqlPipe pipe = SqlContext.Pipe;
        pipe.SendResultsStart(record);
 
        using (SqlConnection cn = new SqlConnection("context connection=true"))
        {
            try
            {
                
                cn.Open();
                cmdPessoas = new SqlCommand("SELECT Id, NomeRazao FROM Pessoas WHERE Status = 'A'", cn);
                reader = cmdPessoas.ExecuteReader();
                while (reader.Read())
                {
                    record.SetInt32(record.GetOrdinal("Id"), reader.GetInt32(reader.GetOrdinal("Id")));
                    record.SetString(record.GetOrdinal("NomeRazao"), reader.GetString(reader.GetOrdinal("NomeRazao")));
 
                    int pessoa = reader.GetInt32(reader.GetOrdinal("Id"));
 
                    SetDocuments(pessoa, ref record, cn);
                    pipe.SendResultsRow(record);
                }
                pipe.SendResultsEnd();
            }
            catch
            {
            }
            finally
            {
                reader.Close();
            }
 
        }
 
    }
 
    private static SqlMetaData[] CreateFields()
    {
        SqlMetaData[] campos = new SqlMetaData[19];
 
        SqlMetaData campo;
        //Pessoa
        campo = new SqlMetaData("Id", SqlDbType.Int);
        campos[0] = campo;
        campo = new SqlMetaData("NomeRazao", SqlDbType.VarChar, 100);
        campos[1] = campo;
        //Documentos
        campo = new SqlMetaData("DocIdentidade", SqlDbType.NVarChar, 20);
        campos[2] = campo;
        campo = new SqlMetaData("DocCPF", SqlDbType.NVarChar, 20);
        campos[3] = campo;
        campo = new SqlMetaData("DocCNPJ", SqlDbType.NVarChar, 20);
        campos[4] = campo;
        campo = new SqlMetaData("DocInscrEstad", SqlDbType.NVarChar, 20);
        campos[5] = campo;
        campo = new SqlMetaData("DocHabilitacao", SqlDbType.NVarChar, 20);
        campos[6] = campo;
        campo = new SqlMetaData("DocCTrabalho", SqlDbType.NVarChar, 20);
        campos[7] = campo;
        campo = new SqlMetaData("DocPassaporte", SqlDbType.NVarChar, 20);
        campos[8] = campo;
        //Endereço
        campo = new SqlMetaData("EndCEP", SqlDbType.Int);
        campos[9] = campo;
        campo = new SqlMetaData("EndRuaAV", SqlDbType.VarChar, 100);
        campos[10] = campo;
        campo = new SqlMetaData("EndComplemento", SqlDbType.VarChar, 50);
        campos[11] = campo;
        campo = new SqlMetaData("EndBairro", SqlDbType.VarChar, 50);
        campos[12] = campo;
        campo = new SqlMetaData("EndCidade", SqlDbType.VarChar, 40);
        campos[13] = campo;
        campo = new SqlMetaData("EndEstado", SqlDbType.Char, 2);
        campos[14] = campo;
        campo = new SqlMetaData("EndPais", SqlDbType.Char, 2);
        campos[15] = campo;
        //Formas de Contato
        campo = new SqlMetaData("Telefone", SqlDbType.NVarChar, 40);
        campos[16] = campo;
        campo = new SqlMetaData("Celular", SqlDbType.NVarChar, 40);
        campos[17] = campo;
        campo = new SqlMetaData("Email", SqlDbType.NVarChar, 40);
        campos[18] = campo;
 
        return campos;
    }
 
    private static void SetDocuments(int Pessoa, ref SqlDataRecord record, SqlConnection cn)
    {
        SqlPipe pipe = SqlContext.Pipe;
        SqlCommand cmdDocumentos;
        SqlDataReader reader = null;
 
        try
        {
            cmdDocumentos = new SqlCommand("SELECT NumeroDoc, TipoDoc from Documentos WHERE Pessoa = " + Pessoa, cn);
            reader = cmdDocumentos.ExecuteReader();
            while (reader.Read())
            {
                int TipoDoc = reader.GetInt32(reader.GetOrdinal("TipoDoc"));
                switch (TipoDoc)
                {
                    case 1://Identidade
                        record.SetString(record.GetOrdinal("DocIdentidade"), reader.GetString(reader.GetOrdinal("NumeroDoc")));
                        break;
                    case 2://CPF
                        record.SetString(record.GetOrdinal("DocCPF"), reader.GetString(reader.GetOrdinal("NumeroDoc")));
                        break;
                    case 3://CNPJ
                        record.SetString(record.GetOrdinal("DocCNPJ"), reader.GetString(reader.GetOrdinal("NumeroDoc")));
                        break;
                    case 4://Inscrição Estadual
                        record.SetString(record.GetOrdinal("DocInscrEstad"), reader.GetString(reader.GetOrdinal("NumeroDoc")));
                        break;
                    case 5://Habilitação
                        record.SetString(record.GetOrdinal("DocHabilitacao"), reader.GetString(reader.GetOrdinal("NumeroDoc")));
                        break;
                    case 6://Cateira de Trabalho
                        record.SetString(record.GetOrdinal("DocCTrabalho"), reader.GetString(reader.GetOrdinal("NumeroDoc")));
                        break;
                    case 7://Passaporte
                        record.SetString(record.GetOrdinal("DocPassaporte"), reader.GetString(reader.GetOrdinal("NumeroDoc")));
                        break;
                }
            }
        }
        catch (Exception ex)
        {
            if (pipe.IsSendingResults) { pipe.SendResultsEnd(); }
            pipe.Send(ex.Message);
        }
        finally
        {
            reader.Close();
        }
    }
[+][-]06.09.2008 at 12:53PM PDT, ID: 21746095

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About this solution

Zones: SQL Server 2005, C# Programming Language
Tags: CLR Procedure, SQL Server 2005, C#, .Net
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Solution Provided By: junges
Participating Experts: 1
Solution Grade: A
 
 
[+][-]06.09.2008 at 01:13PM PDT, ID: 21746248

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