Re: SQL-plus

From: Shakespeare <>
Date: Mon, 02 Mar 2009 21:01:53 +0100
Message-ID: <49ac3b2e$0$198$>

Tim schreef:

> Tim wrote:
>> ddf wrote:
>>> On Mar 2, 9:31 am, Tim <> wrote:
>>>> ddf wrote:

[Quoted] >>>>> On Mar 2, 8:02 am, Tim <> wrote:
>>>>>> Robert Klemme wrote:
>>>>>>> On 02.03.2009 13:49, Tim wrote:
>>>>>>>> Robert Klemme wrote:
>>>>>>>>> ... but be aware that SQL Developer has issues of its own.  I
>>>>>>>>> recently hit a bug when it flagged a warning about a type issue 
>>>>>>>>> in a
>>>>>>>>> trigger - which was utter nonsense.  Also, with SQL Developer you
>>>>>>>>> still need to do the typing (although I'd concede that the auto
>>>>>>>>> completion usually works).  The best thing that can be probably 
>>>>>>>>> said
>>>>>>>>> about it is that you easily get an overview of all your database
>>>>>>>>> objects.
>>>>>>>> Exactly. If I  want to look at the various tables and how they are
>>>>>>>> defined, I would rather click a few times than repeatedly type out
>>>>>>>> some command, regardless of how simple it is.
>>>>>>> Funny thing is, I am not a DBA either and although I do not work 
>>>>>>> with
>>>>>>> Oracle very day I find using SQL Plus quite convenient.  To see a
>>>>>>> description of a table's layout you just need "desc <table 
>>>>>>> name>".  With
>>>>>>> "ed" you can quite conveniently edit your SQL statement in your
>>>>>>> preferred text editor.  And if you want to do some script based 
>>>>>>> testing
>>>>>>> with time measurements and output saved, SQL Plus is unbeatable.

>>>>> Comments embedded
>>>>>>> Now, this is enough advertising. ;-)
>>>>>>> Kind regards
>>>>>>>     robert
>>>>>> OK, here is another question. What is the difference, from a 
>>>>>> developer's
>>>>>> point of view, between Oracle 8i, Oracle 9i and Oracle 10g?

>>>>> Legion. The optimizer changed dramatically between 8i and 10g, and
>>>>> other enhancements have also been provided. See here for 9i
>>>>> improvements:

>>>>> and here for 10g enhancements:

>>>>> You should also peruse "Cost-Based Oracle Fundamentals", by Jonathan
>>>>> Lewis, to understand the changes in the optimizer which can affect
>>>>> you.
>>>>>> If I am just writing SQL statements does it really matter what 
>>>>>> version I
>>>>>> use?

>>>>> It can, depending upon what you're doing. New syntax, such as the
>>>>> WITH clause (for subquery factoring), may provide improved performance
[Quoted] >>>>> over in-line views.
>>>> Is that non-standard SQL then?
>>>>>> Is there any added functionality that would change the actual SQL
>>>>>> statements?

>>>>> Yes, as noted above. Check the documentation for other query
>>>>> enhancements provided by a specific release.
>>>>> - Hide quoted text -
>>>>>> - Show quoted text -

>>>>> David Fitzjarrell- Hide quoted text -
>>>> - Show quoted text -- Hide quoted text -
>>>> - Show quoted text -
>>> 'Non-standard SQL'?
>>> David Fitzjarrell
>> Yes. Do they meet the SQL standards? There are standards to SQL, like 
>> SQL99.
>> Not sure what the most recent version of that is called.
> So I removed 10g and tried to re-install 9i. I double click on the 
> install.exe file and absolutely nothing happens.
> Is there a date limit as to when I can install this product or can I not 
> go back a version?
> Any ideas?

It depends on the way you removed it.
IIRC, the installer CD has a subdirectory (install?) which has also an install.exe; if so, use that one.

Shakespeare Received on Mon Mar 02 2009 - 21:01:53 CET

Original text of this message