如何将此 Oracle 存储过程转换为 SQL Server 存储过程？

Question

我有一个下面提到的 Oracle 存储过程，它获取逗号分隔的字符串参数作为输入，通过循环将其拆分并返回从拆分 csv 获得的 id 的路径。如何在 SQL Server 中创建与此类似的过程？

create or replace PROCEDURE FILE_LOOP(V_FID IN varchar2,
                                      V_NAME OUT VARCHAR2) IS
BEGIN
  FOR ITEM IN (SELECT  V.PATHH||'\'|| V.NAME AS PATH 
               FROM  FILES T INNER JOIN 
                     Table2 V ON T.FOLID=V.ID 
               WHERE T.ID IN (SELECT TRIM(REGEXP_SUBSTR(V_FID,'[^,]+', 1, LEVEL))
                              FROM DUAL
                              CONNECT BY LEVEL <= 1+ REGEXP_COUNT(V_FID , ',')))
  LOOP
     v_name:=v_name||item.PATH;
  END LOOP;

END;

请帮我写一个在sql server中给出完全相同输出的程序？我是 sql server 的新手。

Answer 1

我想这就是你想要的：

if object_id('FILE_LOOP', 'P') is not null
  drop procedure FILE_LOOP;
go

create PROCEDURE 
  FILE_LOOP(
  @V_FID varchar(4000),
  @V_NAME VARCHAR(4000) OUT) AS
  BEGIN
  SET NOCOUNT ON;
   DECLARE ITEM CURSOR FOR
   SELECT 
   ISNULL(V.PATHH, '') + '' +
   ISNULL(V.NAME, '') AS PATH 
   FROM 
   FILES T 
   INNER JOIN Table2 V ON T.FOLID=V.ID 
   WHERE T.ID IN( SELECT 
      RTRIM(LTRIM(REGEXP_SUBSTR(@V_FID ,'[^,]+', 1, LEVEL));
      FROM DUAL 
      CONNECT BY LEVEL <= 1 + REGEXP_COUNT(@V_FID ,',')))
  WHILE 1=1 
  BEGIN
  set @v_name=isnull(@V_NAME, '') + ISNULL(item.PATH, '');
  END;

 FETCH ITEM INTO;
 END;
 CLOSE ITEM;
 DEALLOCATE ITEM;