这些天我正在使用此oracle脚本。
create type virus_Statistic_t as object(
vDate date,
infection int,
dead int,
recovered int
)
/
create type virus_Statistic_tlb as table of virus_Statistic_t
create type countries_t as object(
Province_or_State varchar2(50),
Country_or_Region varchar2(100),
Lat Number(10,6),
Longt Number(10,6),
virus virus_Statistic_tlb
)
/
create table countries of countries_t (
primary key(Province_or_State, Country_or_Region)
) nested table virus store as virus_ntb;
INSERT INTO countries VALUES (
countries_t('British Columbia', 'Canada', 49.2827, -123.1207,
virus_Statistic_tlb(
virus_Statistic_t('22-JAN-20', 5, 0, 0),
virus_Statistic_t('23-JAN-20', 10, 2, 5)
)
)
);
select c.Province_or_State, c.Country_or_Region, c.Lat, c.Longt, v.vDate, v.infection, v.dead, v.recovered
from countries c, table(c.virus) v
运行后,它给了我这张表
PROVINCE_OR_STATE COUNTRY_OR_REGION LAT LONGT VDATE INFECTION DEAD RECOVERED
British Columbia Canada 49.2827 -123.1207 22-JAN-20 5 0 0
British Columbia Canada 49.2827 -123.1207 23-JAN-20 10 2 5
但是我期望的表是
PROVINCE_OR_STATE COUNTRY_OR_REGION LAT LONGT VDATE INFECTION DEAD RECOVERED
British Columbia Canada 49.2827 -123.1207 22-JAN-20 5 0 0
23-JAN-20 10 2 5
我应该对我的代码进行哪些更改?
您可以在here中测试该脚本
当您使用SQL * Plus标记为它标记时,则需要[[break。
这是您现在拥有的:SQL> select c.Province_or_State, c.Country_or_Region, c.Lat, c.Longt,
2 v.vDate, v.infection, v.dead, v.recovered
3 from countries c, table(c.virus) v;
PROVINCE_OR_STAT COUNTRY_OR_REGION LAT LONGT VDATE INFECTION DEAD RECOVERED
---------------- -------------------- ---------- ---------- -------- ---------- ---------- ----------
British Columbia Canada 49,2827 -123,1207 22.01.20 5 0 0
British Columbia Canada 49,2827 -123,1207 23.01.20 10 2 5
中断:
SQL> break on province_or_state on country_or_region on lat on longt SQL> select c.Province_or_State, c.Country_or_Region, c.Lat, c.Longt, 2 v.vDate, v.infection, v.dead, v.recovered 3 from countries c, table(c.virus) v; PROVINCE_OR_STAT COUNTRY_OR_REGION LAT LONGT VDATE INFECTION DEAD RECOVERED ---------------- -------------------- ---------- ---------- -------- ---------- ---------- ---------- British Columbia Canada 49,2827 -123,1207 22.01.20 5 0 0 23.01.20 10 2 5 SQL>
其他(报告)工具,例如Oracle Reports Builder或Apex Classic Report具有自己的[[breaking功能。
analytical function
:SELECT CASE WHEN RN = 1 THEN Province_or_State END AS Province_or_State,
CASE WHEN RN = 1 THEN Country_or_Region END AS Country_or_Region,
CASE WHEN RN = 1 THEN Lat END AS Lat,
CASE WHEN RN = 1 THEN Longt END AS Longt,
vDate, infection, dead, recovered
FROM
(select c.Province_or_State, c.Country_or_Region, c.Lat, c.Longt, v.vDate, v.infection, v.dead, v.recovered
,ROW_NUMBER() OVER (PARTITION BY c.Province_or_State, c.Country_or_Region, c.Lat, c.Longt ORDER BY V.VDATE) AS RN
from countries c, table(c.virus) v)
ORDER BY RN
/