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Re: Conversion from Sybase ASA
3+ messages / 3 participants
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* Re: Conversion from Sybase ASA
@ 2003-09-09 07:06  Viorel Dragomir <bc@vio.ro>
  parent: Richard Sydney-Smith <richard@ibisaustralia.com>
  1 sibling, 0 replies; 3+ messages in thread

From: Viorel Dragomir @ 2003-09-09 07:06 UTC (permalink / raw)
  To: Richard Sydney-Smith <richard@ibisaustralia.com>; pgsql-sql

select 'T' as src,(if tbon is null or tbon < '1900/12/12' or tbon > '1900/9/30' then 'U' else 'P' endif) as pres from ftrans

select 'T' as src,(CASE WHEN tbon is null or tbon < '1900/12/12' or tbon > '1900/9/30' THEN  'U' ELSE  'P' END) as pres from ftrans

I think it works in Oracle too :)
Pay attention at tbon < '1900/12/12'. Try to use conversion on date formats like to_date() or to_timestamp().

Good luck
  ----- Original Message ----- 
  From: Richard Sydney-Smith 
  To: pgsql-sql@postgresql.org 
  Sent: Tuesday, September 09, 2003 10:06 AM
  Subject: [SQL] Conversion from Sybase ASA


  In sybase I can use the following syntax:

  select 'T' as src,(if tbon is null or tbon < '1900/12/12' or tbon > '1900/9/30' then 'U' else 'P' endif) as pres from ftrans

  this returns two columns: src = 'T' and pres which has either the value 'U' or 'P'

  how would I express this in postgresql?

  thanks

  Richard

^ permalink  raw  reply  [nested|flat] 3+ messages in thread

* Conversion from Sybase ASA
@ 2003-09-09 07:06  Richard Sydney-Smith <richard@ibisaustralia.com>
  0 siblings, 2 replies; 3+ messages in thread

From: Richard Sydney-Smith @ 2003-09-09 07:06 UTC (permalink / raw)
  To: pgsql-sql

In sybase I can use the following syntax:

select 'T' as src,(if tbon is null or tbon < '1900/12/12' or tbon > '1900/9/30' then 'U' else 'P' endif) as pres from ftrans

this returns two columns: src = 'T' and pres which has either the value 'U' or 'P'

how would I express this in postgresql?

thanks

Richard

^ permalink  raw  reply  [nested|flat] 3+ messages in thread

* Re: Conversion from Sybase ASA
@ 2003-09-09 07:17  Ian Barwick <barwick@gmx.net>
  parent: Richard Sydney-Smith <richard@ibisaustralia.com>
  1 sibling, 0 replies; 3+ messages in thread

From: Ian Barwick @ 2003-09-09 07:17 UTC (permalink / raw)
  To: Richard Sydney-Smith <richard@ibisaustralia.com>; pgsql-sql

On Tuesday 09 September 2003 09:06, Richard Sydney-Smith wrote:
> In sybase I can use the following syntax:
>
> select 'T' as src,(if tbon is null or tbon < '1900/12/12' or tbon >
> '1900/9/30' then 'U' else 'P' endif) as pres from ftrans
>
> this returns two columns: src = 'T' and pres which has either the value 'U'
> or 'P'
>
> how would I express this in postgresql?

"CASE":

http://www.postgresql.org/docs/7.3/static/functions-conditional.html

Ian Barwick
barwick@gmx.net




^ permalink  raw  reply  [nested|flat] 3+ messages in thread

end of thread, other threads:[~2003-09-09 07:17 UTC | newest]

Thread overview: 3+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2003-09-09 07:06 Conversion from Sybase ASA Richard Sydney-Smith <richard@ibisaustralia.com>
2003-09-09 07:06 ` Viorel Dragomir <bc@vio.ro>
2003-09-09 07:17 ` Ian Barwick <barwick@gmx.net>

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