我能够在TSQL中使用类似的功能,但我是PL / SQL的新手,我希望有人可以向我解释为什么这个函数声明无法编译。
t_interval_list_table是对象的表类型t_interval,其具有单个属性varchar2(20)。 Interval_Get_udf只返回varchar(2)
create or replace
FUNCTION fn_ExplodeIntervals (
startTime IN timestamp,
endTime IN timestamp,
inputInterval IN int)
RETURN t_interval_list_table AS intervalList t_interval_list_table := t_interval_list_table()
BEGIN
with SET0 as( select 1 from dual union all select 1 from dual)
, SET1 as ( select 1 from SET0 s1, SET0 s2)
, SET2 as ( select 1 from SET1 s1, SET1 s2)
, SET3 as ( select 1 from SET3 s1, SET3 s2)
, SET4 as ( select 1 from SET4 s1, SET4 s2)
, ControlSet AS (SELECT ROW_NUMBER() OVER(ORDER BY (SELECT 1 from Dual)) rid FROM SET4)
select t_interval(Interval_Get_udf(TO_TIMESTAMP(startTime, 'dd/mm/yyyy') + rid/24 , 1))
into intervalList
from ControlSet;
RETURN intervalList;
END fn_ExplodeIntervals;
答案 0 :(得分:0)
您可以在PL / SQL过程中简化查询:
SELECT t_interval(Interval_Get_udf(TRUNC(startTime) + ROWNUM/24 , 1))
BULK COLLECT INTO intervalList
FROM dual
CONNECT BY LEVEL <= 65536
这可能会消除错误。
答案 1 :(得分:0)
很难读懂这个,所以我可能错了......
你是不是在下面的末尾错过了分号:
t_interval_list_table:= t_interval_list_table( );