摘要:
https://www.postgresql.org/docs/9.3/functions-json.html https://www.cnblogs.com/VicLiu/p/11940524.html https://www.runoob.com/manual/PostgreSQL/index. 阅读全文
摘要:
计算time1+time2<=3000的总个数 select countIf(time1+time2<=3000) from table 计算求a*b大于等于0的和 select sumIf(a*b,a*b>=0) from table 查找列表中包含某个id的数据 ['aa','bb'] sele 阅读全文