Re: generated dates from record dates - suggestions
| От | Jasen Betts |
|---|---|
| Тема | Re: generated dates from record dates - suggestions |
| Дата | |
| Msg-id | k0vqjd$obp$1@reversiblemaps.ath.cx обсуждение исходный текст |
| Ответ на | generated dates from record dates - suggestions (Gary Stainburn <gary.stainburn@ringways.co.uk>) |
| Ответы |
Re: generated dates from record dates - suggestions
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| Список | pgsql-sql |
On 2012-08-20, Gary Stainburn <gary.stainburn@ringways.co.uk> wrote: > Hi folks. > > I've got a table with three dates which are populated from an external source. > I then want to have a view with two calculated dates in it, e.g. > > if date_1 is null and date_2 is null then date_a=NULL > if date_1 is not null and date 2 is null then date_a=date_1+'90 days' > if date_1 > date3 rhen date_b=date1 else date_b=date2 > etc. > > What's the best way to do this? CASE looks good. > I know it's a quite open question but I'm interested to hear different > responses "date_b" on line three, is that a typo? if not how am i to interpret it? -- ⚂⚃ 100% natural
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