Oracle存储过程 使用游标、数组的配合查询

查询输入的门牌号码是否在标准门牌库中存在。存在则返回相应的号码。

 public string  GetValidate（）{

 OracleConnection conn = ConnectOra();
 string  retRepMphm;
 try
 {
  conn.open();
  OracleComandType cmd=conn.CreateCommand();
  cmd.CommandType=Commandype.StoredProcedure；
  cmd.CommandText=""sp_querybzdm;
  OracleParameter[] parameters =new OracleParameter[];
  parameters[]=new OracleParameter("mplxs",OracleType.VarChar);
  parameters[]=new OracleParameter("bzdms",OracleType.VarChar);
  parameters[]=new OracleParameter("mphms",OracleType.VarChar);
  parameters[]=new OracleParameter("remphm",OracleType.VarChar,);

  parameters[].Value="大门牌";
  parameters[].Value="吕岭路";
  parameters[].Value="1号";
  parameters[].Value=ParameterDirection.Output;

 foreach(OraclePrameter parameter in parameters)
   cmd.Parameters.Add(parameter);
 }
  cmd.ExecuteNonQuery();
  retRepMphm=parameters[].value==null?"":parameters[].Value.Tostring();
 catch(Exception){}
  throw ex;
 }
 finaly{

 conn.close();
 }

 create or replace proceduce sp_querybzdm
 (
        mplxs in varchar2;----定义变量
        bzdm  in varchar2;
        mphms in varchar2;
        remphm out varchar2 ---输出变量
 )   is
 countnum  number;

 --游标
 cursor  curmas is
                select regexp_substr(mphms ,'[^,]+',,level) as we
                from dual
                connect by level<=length(mphms )-length(replace(mphms,','))+

 begin
      for row_ma  in curmas loop
        begin
          select count(*) into countnum from YW_LMP_QD where BZHM=row_mas.we ;
          if(count(*)<>)  then
            if str_result  is not null then
               str_result:=str_result||','|| row_ma.we
            else
               str_result:=row_ma.we
            end if;
         end if;
        end
      end loop;
      if    str_result is not null  then
       remphm:=rtrim(str_result,',');
      end if
 end