how to get historical data?

Started by 黎维 王over 22 years ago2 messagesgeneral
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#1黎维 王
davilisa@yahoo.com.cn

hi,
now, i don't know how to ask a historical query? which command?

thanks!

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#2Peter Eisentraut
peter_e@gmx.net
In reply to: 黎维 王 (#1)
Re: how to get historical data?

ᅵᅵά ᅵᅵ writes:

now, i don't know how to ask a historical query? which command?

There is none. You need to maintain historical data yourself using
triggers.

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Peter Eisentraut peter_e@gmx.net