从c#传递数组到Oracle过程

Question

我正在尝试将数组传递给oracle过程.我搜索了它,首先我创建了一个名为'dizi'的类型(在这里输入链接描述).所以它适用于oracle开发人员.问题是; 我不能将我的c#数组作为参数传递给procedure.那么如何将我的数组传递给我的程序呢？

这是我的代码(当我执行时,oracle错误说:并非所有变量都绑定)

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();
}

Answer 1

1. 定义数组类型和过程:

   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; 
   

2. C#例程:

   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();
   }