c# - 将变量值和输出从 PL/SQL 代码块返回到 C#

Question

我有一个代码块，我正在为变量赋值以跟踪 block 执行时发生的情况。

begin 
 declare 
   stage number := 0; 
   begin
    stage := 1;
    INSERT INTO Country ( code, name) VALUES (1 , 'xxxx');
    stage := 2;
    INSERT INTO City ( code, name) VALUES (1 , 'yyyy');
    DBMS_OUTPUT.PUT_LINE('DONE:'); 
COMMIT; 

EXCEPTION  -- exception handlers begin 
  WHEN OTHERS THEN  -- handles all other errors 
   DBMS_OUTPUT.PUT_LINE('Error occured, rollback...');  
   DBMS_OUTPUT.get_LINE(:1, :2);
   stage := -1;
   ROLLBACK; 
  end;
end; 

我想问你如何使用 C# 获取阶段值和 DBMS_OUTPUT.PUT_LINE() 中的值。我知道这已经得到解答，但不幸的是我找不到它。

Answer 1

using (OracleCommand cmd = cnn.CreateCommand())
{
    OracleParameter status = new OracleParameter(":1", OracleType.VarChar, 32000);
    p_line.Direction = ParameterDirection.Output;

    OracleParameter line = new OracleParameter(":2", OracleType.Double);
    p_status.Direction = ParameterDirection.Output;

    OracleParameter stage= new OracleParameter("stage", OracleType.Int16);
    p_country_name.Direction = ParameterDirection.Output;    

    cmd.CommandText = script;
    cmd.CommandType = CommandType.Text;
    cmd.Parameters.Add(status);
    cmd.Parameters.Add(line );
    cmd.Parameters.Add(stage);
    cmd.ExecuteNonQuery();

    string status = status.Value.ToString();
    string line = line.Value.ToString();
    string stage= stage.Value.ToString();
}