从C#将数组传递给Oracle过程 [英] Passing array to Oracle procedure from c#

问题描述

我正在尝试将数组传递给oracle过程.我进行了搜索，首先创建了一个名为"dizi"的类型(如此处

I'm trying to pass an array to oracle procedure. I searched about it and firstly i created a type named 'dizi' (like here enter link description here). So it works in oracle developer. The problem is; i can't pass my c# array to procedure as a parameter. So how can i pass my array to my procedure?

这是我的代码(执行时，oracle错误提示:并非所有变量都已绑定)

Here is my code (When i execute, oracle error says: Not all variables bound)

public void InsertQuestion(List<string> area_list)
{
    quest_areas = area_list.ToArray();
    command.Connection = connect;
    connect.Open();

    var arry = command.Parameters.Add("Areas", OracleDbType.Varchar2);
    arry.Direction = ParameterDirection.Input;
    arry.CollectionType = OracleCollectionType.PLSQLAssociativeArray;
    arry.Value = quest_areas;


    command.CommandText ="TESTPROCEDURE(:Areas)";
    command.CommandType = CommandType.StoredProcedure;
    command.ExecuteNonQuery();
    connect.Close();
}

推荐答案

1. 定义数组类型和过程:

1. Define an array type and a procedure:

CREATE or replace PACKAGE Testpackage AS 
  TYPE Areas_t is table of VARCHAR(100) index by BINARY_INTEGER;
  PROCEDURE TESTPROCEDURE(Areas IN Areas_t);       
END Testpackage; 

C#例程:

C# routine:

public void InsertQuestion(IEnumerable<string> area_list)
{
    var connect = new OracleConnection("YOUR CONNECTION STRING");

    var command = new OracleCommand("BEGIN Testpackage.Testprocedure(:Areas); END;", connect);

    connect.Open();

    var arry = command.Parameters.Add("Areas", OracleDbType.Varchar2);

    arry.Direction = ParameterDirection.Input;
    arry.CollectionType = OracleCollectionType.PLSQLAssociativeArray;
    arry.Value = area_list.ToArray();
    arry.Size = area_list.Count();
    arry.ArrayBindSize = area_list.Select(_ => _.Length).ToArray();
    arry.ArrayBindStatus = Enumerable.Repeat(OracleParameterStatus.Success, area_list.Count()).ToArray();

    command.ExecuteNonQuery();

    connect.Close();
}

这篇关于从C#将数组传递给Oracle过程的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！