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* Tutorial: chapter 5
@ 2000-12-12 15:33 itdcgb <itdcgb@its.hants.gov.uk>
2000-12-12 16:47 ` Re: Tutorial: chapter 5 Bruce Momjian <pgman@candle.pha.pa.us>
0 siblings, 1 reply; 2+ messages in thread
From: itdcgb @ 2000-12-12 15:33 UTC (permalink / raw)
To: pgsql-docs
In 'Joins between classes' in Section 5 of the tutorial we have, in
the first paragraph:
As an example, say we wish to find all the records that
are in the temperature range of other records. In
effect, we need to compare the temp_lo and temp_hi
attributes of each EMP instance to the temp_lo and
temp_hi attributes of all other EMP instances.
I believe that EMP should read WEATHER, as the example query that
follows joins WEATHER to itself.
EMP is often used in Oracle examples.
Regards,
Graham
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* Re: Tutorial: chapter 5
2000-12-12 15:33 Tutorial: chapter 5 itdcgb <itdcgb@its.hants.gov.uk>
@ 2000-12-12 16:47 ` Bruce Momjian <pgman@candle.pha.pa.us>
0 siblings, 0 replies; 2+ messages in thread
From: Bruce Momjian @ 2000-12-12 16:47 UTC (permalink / raw)
To: itdcgb <itdcgb@its.hants.gov.uk>; +Cc: pgsql-docs
Applied. Thanks.
[ Charset ISO-8859-1 unsupported, converting... ]
> In 'Joins between classes' in Section 5 of the tutorial we have, in
> the first paragraph:
>
> As an example, say we wish to find all the records that
> are in the temperature range of other records. In
> effect, we need to compare the temp_lo and temp_hi
> attributes of each EMP instance to the temp_lo and
> temp_hi attributes of all other EMP instances.
>
> I believe that EMP should read WEATHER, as the example query that
> follows joins WEATHER to itself.
>
> EMP is often used in Oracle examples.
>
> Regards,
> Graham
>
>
--
Bruce Momjian | http://candle.pha.pa.us
pgman@candle.pha.pa.us | (610) 853-3000
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+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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