我对MySQL很陌生，想要求帮助，非常感谢！
让我们像opp_history表一样（加上它的pk）：
opp_id date_created stage
00658000009Pa0gAAC 2016-11-05 Qualification
00658000009Pa0gAAC 2016-11-06 Validating benefits
00658000009Pa0gAAC 2016-11-09 Offer
00658000009Pa0gAAC 2016-11-09 Validating benefits
00658000009Pa0gAAC 2016-11-10 Offer
00658000009Pa0gAAC 2016-11-15 Closed Lost
00658000009PIZHAA4 2016-11-04 Validating benefits
00658000009PIZHAA4 2016-11-04 Offer
00658000009PIZHAA4 2016-11-04 Qualification
00658000009PIZHAA4 2016-11-04 Offer
00658000009PIZHAA4 2016-11-10 Closed Lost
我想做的是填补每个阶段与前一阶段值之间的日期差距，所以：
opp_id date_created stage
00658000009Pa0gAAC 2016-11-05 Qualification
00658000009Pa0gAAC 2016-11-06 Validating benefits
00658000009Pa0gAAC 2016-11-07 Validating benefits
00658000009Pa0gAAC 2016-11-08 Validating benefits
00658000009Pa0gAAC 2016-11-09 Offer
00658000009Pa0gAAC 2016-11-09 Validating benefits
00658000009Pa0gAAC 2016-11-10 Offer
00658000009Pa0gAAC 2016-11-11 Offer
00658000009Pa0gAAC 2016-11-12 Offer
00658000009Pa0gAAC 2016-11-13 Offer
00658000009Pa0gAAC 2016-11-14 Offer
00658000009Pa0gAAC 2016-11-15 Closed Lost
00658000009PIZHAA4 2016-11-04 Validating benefits
00658000009PIZHAA4 2016-11-04 Offer
00658000009PIZHAA4 2016-11-04 Qualification
00658000009PIZHAA4 2016-11-05 Offer
00658000009PIZHAA4 2016-11-06 Offer
00658000009PIZHAA4 2016-11-07 Offer
00658000009PIZHAA4 2016-11-08 Offer
00658000009PIZHAA4 2016-11-09 Offer
00658000009PIZHAA4 2016-11-10 Closed Lost
但即使我读过这篇文章：MySQL Fill in missing dates between two dates for a given status 我仍然在努力应用相同的逻辑导致opp_id，其中最大日期必须是每个opp_id的最大创建日期。
我已按照那里的建议创建了日历虚拟表和视图。
非常感谢您的建议！ 随意问什么，Z。