oracle sql指令碼**
create or replace
procedure p_delete_qk (pid in number, deep in number) as
-- pid = 分類id deep = 深度，層級
one_val number;
two_val number;
three_val number;
cursor var_one is select "id" from t_qk where parentid = pid;
cursor var_two is select "id" from t_qk where parentid = one_val;
cursor var_three is select "id" from t_wz where qkid = two_val;
begin
if deep = 0 then
for oneid in var_one loop
one_val:= oneid."id";
for twoid in var_two loop
two_val:= twoid."id";
--刪除與文章關聯表
for threeid in var_three loop
three_val:= threeid."id";
delete from q_browse where wzid = three_val;--瀏覽量
delete from q_attention where wzid = three_val;--關注量
end loop;
--刪除這個分類下的所有文章
delete from t_wz where qkid = two_val;
--刪除**分類
delete from t_qk where "id" = two_val;
end loop;
--刪除二級分類
delete from t_qk where "id" = one_val;
end loop;
--刪除期刊期數
delete from t_qkqs where qkid = pid;
--刪除
delete from q_download where qkid = pid;
--刪除本身
delete from t_qk where "id" = pid;
end if;
if deep = 1 then
for twoid in var_one loop
two_val:= twoid."id";
for threeid in var_three loop
three_val:= threeid."id";
delete from q_browse where wzid = three_val;--瀏覽量
delete from q_attention where wzid = three_val;--關注量
end loop;
--刪除這個分類下的所有文章
delete from t_wz where qkid = two_val;
--刪除**分類
delete from t_qk where "id" = two_val;
end loop;
--刪除二級分類
delete from t_qk where "id" = pid;
end if;
if deep = 2 then
two_val:= pid;
--刪除與文章關聯表
for threeid in var_three loop
three_val:= threeid."id";
delete from q_browse where wzid = three_val;--瀏覽量
delete from q_attention where wzid = three_val;--關注量
end loop;
--刪除這個分類下的所有文章
delete from t_wz where qkid = pid;
--刪除**分類
delete from t_qk where "id" = pid;
end if;
end;
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