Обсуждение: converting string value to integer

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converting string value to integer

От
Ken Guest
Дата:
How do I cast/convert a string value to an integer in 7.1.3?
I've tried using cast but it doesn't seem to work.

k.


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Re: converting string value to integer

От
Manfred Koizar
Дата:
On Wed, 18 Dec 2002 11:13:50 +0000, Ken Guest <kguest@stockbyte.com>
wrote:
>How do I cast/convert a string value to an integer in 7.1.3?
>I've tried using cast but it doesn't seem to work.

fred=# SELECT version();
                           version
--------------------------------------------------------------
 PostgreSQL 7.1.3 on i686-pc-cygwin, compiled by GCC 2.95.3-5
(1 row)

fred=# SELECT '123'::INT;
 ?column?
----------
      123
(1 row)

fred=# SELECT CAST('123' AS INT);
 ?column?
----------
      123
(1 row)

Does this answer your question?  If not, show us an example of what
you have tried.

Servus
 Manfred

Re: converting string value to integer

От
Ken Guest
Дата:
Manfred Koizar wrote:

>On Wed, 18 Dec 2002 11:13:50 +0000, Ken Guest <kguest@stockbyte.com>
>wrote:
>
>
>>How do I cast/convert a string value to an integer in 7.1.3?
>>I've tried using cast but it doesn't seem to work.
>>
>>
>
><snip>
>
>
>Does this answer your question?  If not, show us an example of what
>you have tried.
>
It does indeed. There were some trailing spaces which I was unaware of,
so I'm now using something akin to
SELECT CAST(TRIM('123 ') AS INT);

which works perfectly.

Thank you Manfred,

ken







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