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Single row tables - Mailing list pgsql-sql

From	KÖPFERL Robert
Subject	Single row tables
Date	January 11, 2005 17:45:52
Msg-id	ED4E30DD9C43D5118DFB00508BBBA76EB1653A@neptun.sonorys.at Whole thread Raw
Responses	Re: Single row tables
List	pgsql-sql

Hi,

with what constraint or how can I ensure that one of my tables has exact one
record or 0..1 records?

From: Kieran Ashley
Date: 11 January 2005, 17:44:45
Subject: Re: Parsing a Calculation from a field

From: "Jeff Eckermann"
Date: 11 January 2005, 17:50:08
Subject: Re: Parsing a Calculation from a field