Oracle存储过程返回select * from table结果

1.首先建立一个包

create or replace package LogOperation is
type listLog is ref cursor;
procedure PCenterExamine_sel(listCenterExamine out listlog,testlist out listLog,numpage in decimal);
end;

2.建立包中的主体

create or replace package body LogOperation is
procedure PCenterExamine_sel
(
listCenterExamine out listlog,
testlist out listlog,
numpage in decimal
)
as
begin
open listCenterExamine for select * from Log_CenterExamine;
open testlist for select * from Log_CenterExamine;
end;
end;

3.在程序中调用存储过程的值

public static DataSet RunProcedureGetDataSet(string storedProcName, OracleParameter[] parameters)
{
string connectionString ="192.168.1.1/db";
using (OracleConnection connection = new OracleConnection(connectionString))
{
DataSet dataSet = new DataSet();
connection.Open();
OracleDataAdapter sqlDA = new OracleDataAdapter();
sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);
sqlDA.Fill(dataSet, "dt");
connection.Close();
return dataSet;
}
}

private static OracleCommand BuildQueryCommand(OracleConnection connection, string storedProcName, IDataParameter[] parameters)
{
OracleCommand command = new OracleCommand(storedProcName, connection);
command.CommandType = CommandType.StoredProcedure;
foreach (OracleParameter parameter in parameters)
{
command.Parameters.Add(parameter);
}
return command;
}

4.有几个out的ref cursor，变量ds中就用几个DataTable。并且输入参数 indecimal也不会受影响，并且可以参加存储过程的运算

OracleParameter[] paramDic = {
new OracleParameter("listCenterExamine",OracleType.Cursor),
new OracleParameter("testlist",OracleType.Cursor),
new OracleParameter("numpage",OracleType.Int32)};
paramDic[0].Direction = ParameterDirection.Output;
paramDic[1].Direction = ParameterDirection.Output;
paramDic[2].Value = 1;
ds = Model.OracleHelper.RunProcedureGetDataSet("LogOperation.PCenterExamine_sel", paramDic);