根据薪酬表 获取 12个月应发工资,没有则用0补充
SELECT a.calcmonthlist 年月, nvl(b.totalsalary, 0) 应发工资
FROM (SELECT TO_CHAR(ADD_MONTHS(TO_DATE('2019-01', 'yyyy-MM'), ROWNUM - 1),
'yyyyMM') AS calcmonthlist
FROM DUAL
CONNECT BY ROWNUM <=
months_between(to_date('201912', 'yyyyMM'),
to_date('201901', 'yyyyMM')) + 1) a
left join (select c.calcmonth, c.totalsalary
from prpssalary c
where c.usercode = '175527767') b
on a.calcmonthlist = b.calcmonth
order by a.calcmonthlist;
效果图如下: