| From: | Michelle Konzack <linux4michelle(at)gmail(dot)com> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | COL unique (CustomerID) plus COL unique (COUNT) inside CustomerID |
| Date: | 2016-09-01 09:28:57 |
| Message-ID: | 20160901092857.GC28079@cq58.hosts.tdnet.eu |
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| Lists: | pgsql-general |
Hello to all,
after a period of silence from Debian, Courier, PHP and PostgreSQL I am
half back and running into a problem... :-/
I need a table with an UNIQUE CustomerID which is working fine...
...BUT I need also a second column with a count, which must be UNIQUE
inside the CustomerID.
In clear this:
CustID Count
1 1
1 2
1 3
2 1
2 2
3 1
3 2
3 3
...
How to do this?
Thanks in avance
--
Michelle Konzack ITSystems
GNU/Linux Developer 0033-6-61925193
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