[英]Calling stored procedure from C# is not working
我在SQL Server 2008中創建了一個過程:
CREATE PROCEDURE USP_VISUALIZAR_PIS_PROCESSO_IMPORTACAO_DETALHE_HISTORICO
@DATA_HISTORICO DATETIME
, @SIGLA_ESTADO VARCHAR(2)
, @ANO_MES INT
, @SEMANA_MES INT
, @CODIGO_LINHA_FICTICIA INT
AS
BEGIN
SELECT P.PROD_CD_PRODUTO
, P.PROD_DS_PRODUTO
, HIST.PIDH_DT_NOTA_FISCAL
, HIST.PIDH_NR_ORDEM
, HIST.PIDH_NR_ITEM
, HIST.PIDH_CD_PROCESSO
, HIST.PIDH_DT_PREV_BOOKING
, HIST.PIDH_DT_CHEGADA_PORTO
, HIST.PIDH_DT_PREVISAO_EMBARQUE_ORDEM
, HIST.PIDH_DT_LIBERACAO
, ISNULL(HIST.PIDH_DS_CANAL, '-') AS PIDH_DS_CANAL
, HIST.PIDH_CD_REFERENCIA
, HIST.PIDH_CD_REMESSA
, HIST.PIDH_IN_FATURAS_IMPORTACAO
, HIST.PIDH_NM_FORNECEDOR
, CASE WHEN HIST.PIDH_DT_NOTA_FISCAL IS NOT NULL THEN 'Sim' ELSE 'NãO' END AS INDICADOR_RECEBIDO
, SUM(HIST.PIDH_QN_FATURA) AS PIDH_QN_FATURA
, MAX(HIST.PIDH_QN_ORDEM) AS PIDH_QN_ORDEM
, MAX(HIST.PIDH_QN_DIAS_DEMURRAGE) AS PIDH_QN_DIAS_DEMURRAGE
, CASE WHEN HIST.PIDH_DT_LIBERACAO IS NOT NULL THEN 1 ELSE 0 END AS LIBERADO
, HIST.PIDH_DT_HISTORICO
, HIST.DDT_NR_SEMANA_MES
, HIST.DDT_NR_ANOMES
FROM PROCESSO_IMPORTACAO_DETALHE_HISTORICO HIST
INNER JOIN ESTADO E ON E.ESTA_CD_ESTADO = HIST.ESTA_CD_ESTADO
INNER JOIN PRODUTO P ON P.PROD_CD_PRODUTO = HIST.PROD_CD_PRODUTO
INNER JOIN LINHA L ON L.LINH_CD_LINHA = P.LINH_CD_LINHA
INNER JOIN LINHA_FICTICIA LF ON LF.LIFI_CD_LINHA_FICTICIA = L.LIFI_CD_LINHA_FICTICIA
INNER JOIN VOLTAGEM V ON V.VOLT_CD_VOLTAGEM = P.VOLT_CD_VOLTAGEM
INNER JOIN PRODUTO_COMERCIAL PC ON PC.PRCO_CD_PRODUTO_COMERCIAL = P.PRCO_CD_PRODUTO_COMERCIAL
WHERE HIST.PIDH_DT_HISTORICO = @DATA_HISTORICO
GROUP BY P.PROD_CD_PRODUTO
, P.PROD_DS_PRODUTO
, HIST.PIDH_DT_NOTA_FISCAL
, HIST.PIDH_NR_ORDEM
, HIST.PIDH_NR_ITEM
, HIST.PIDH_CD_PROCESSO
, HIST.PIDH_DT_PREV_BOOKING
, HIST.PIDH_DT_CHEGADA_PORTO
, HIST.PIDH_DT_PREVISAO_EMBARQUE_ORDEM
, HIST.PIDH_DT_LIBERACAO
, HIST.PIDH_DS_CANAL
, HIST.PIDH_CD_REFERENCIA
, HIST.PIDH_CD_REMESSA
, HIST.PIDH_IN_FATURAS_IMPORTACAO
, HIST.PIDH_NM_FORNECEDOR
, HIST.PIDH_DT_HISTORICO
, HIST.DDT_NR_SEMANA_MES
, HIST.DDT_NR_ANOMES
END
當我從SQL Server Management Studio調用時,此過程正常工作,但是當我從C#調用它時它不起作用。 我需要這個程序的輸出,但我沒有成功。
C#代碼是這樣的:
object[] o = new object[5];
o[0] = dataHistorico;
o[1] = filtro.SiglaEstado;
o[2] = filtro.AnoMes;
o[3] = filtro.SemanaMes;
o[4] = linhaFiciticia;
string query = "exec USP_VISUALIZAR_PIS_PROCESSO_IMPORTACAO_DETALHE_HISTORICO @DATA_HISTORICO = {0}, @SIGLA_ESTADO = {1}, @ANO_MES = {2}, @SEMANA_MES = {3}, @CODIGO_LINHA_FICTICIA = {4}";
var r = db.Database.ExecuteSqlCommand(query, o);
此代碼的輸出始終為-1,但是當我從SQL Server執行時,它返回超過10,000條記錄。
怎么了? 有人可以幫我解決這個問題嗎?
UPDATE
這是解決方案:
string query = "exec USP_VISUALIZAR_PIS_PROCESSO_IMPORTACAO_DETALHE_HISTORICO";
string connectionString = System.Configuration.ConfigurationSettings.AppSettings["StringConexao"].ToString();
SqlConnection conn = new SqlConnection(connectionString);
SqlCommand command = new SqlCommand(query + " @DATA_HISTORICO = '" + dataHistorico.ToString("yyyy-MM-dd") + "', @SIGLA_ESTADO = " + filtro.SiglaEstado + ", @ANO_MES = " + filtro.AnoMes + ", @SEMANA_MES = " + filtro.SemanaMes + ", @CODIGO_LINHA_FICTICIA = " + linhaFiciticia, conn);
command.Connection.Open();
SqlDataAdapter sda = new SqlDataAdapter(command);
command.Connection.Close();
DataTable dt = new DataTable();
sda.Fill(dt);
conn.Close();
command.Connection.Close();
foreach (DataRow row in dt.Rows)
{
ProcessoImportacaoDetalhePISVO pi = new ProcessoImportacaoDetalhePISVO();
string processo = row["PIDH_CD_PROCESSO"].ToString();
string referencia = row["PIDH_CD_REFERENCIA"].ToString();
pi.Processo = !String.IsNullOrEmpty(processo) ? processo : referencia;
lista.Add(pi);
}
謝謝你們的幫助!
您絕對應該使用SqlCommand和您的存儲過程。 嘗試這樣的事情。
string connectionString = "your connection string";
using (SqlConnection connection = new SqlConnection(connectionString))
{
connection.Open();
using (SqlCommand command = new SqlCommand("USP_VISUALIZAR_PIS_PROCESSO_IMPORTACAO_DETALHE_HISTORICO", connection))
{
command.CommandTimeout = 0;
command.CommandType = System.Data.CommandType.StoredProcedure;
SqlParameter p1 = command.Parameters.Add("@DATA_HISTORICO", SqlDbType.DateTime);
p1.Direction = ParameterDirection.Input;
p1.Value = dataHistorico;
SqlParameter p2 = command.Parameters.Add("@SIGLA_ESTADO", SqlDbType.VarChar);
p2.Direction = ParameterDirection.Input;
p2.Value = filtro.SiglaEstado;
//.... continue for rest of parameters
using (SqlDataReader reader = command.ExecuteReader())
{
while (reader.Read())
{
//Read your values into some data structure
}
}
}
}
問題是ExecuteSqlCommand只返回SQL Server返回的內容。 如果要返回行數,則可以通過在SP中選擇rowcount到本地變量並從存儲過程返回該行來完成此操作。
如果您的目標是從SP獲取記錄,那么您需要探索數據庫SqlQuery方法並查看哪些重載適用於您的情況。
ExecuteSqlCommand用於執行“命令” - 在ADO.NET中不返回結果集(那些稱為“查詢”)。 由於看起來您正在使用Entity Framework,因此您可以在設計器中對其進行建模或使用SqlQuery方法。
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