Re: SQL Command list history on Linux

From: Neil Chandler <neil_chandler_at_hotmail.com>
Date: Thu, 4 Jan 2018 15:56:38 +0000
Message-ID: <HE1PR1001MB12434E8C39FA0B4ADA994703851F0_at_HE1PR1001MB1243.EURPRD10.PROD.OUTLOOK.COM>



Jeff,

The main traction against sqlci isn't the several seconds to start rather than pretty much instant sqlplus (this becomes a factor when calling sqlplus multiple times in a loop), nor the fact it's far superior to sql*plus, but the red tape, security clearance, patching, etc, required to get new software (especially the Java component) onto the all of the DB servers. That pretty much nobody is using 12.2 in Production yet compounds it, so the red tape is required. There's nothing you can do about this that time won't cure except make the sqlci case increasingly compelling.

I use vi and sqlplus because they are guaranteed to be there. If I was a perm DBA in a company long-term, I'd probably raise the paperwork to get it onto every DB server purely for the automatic column size adjustments if nothing else. Love that.

Neil Chandler



From: Jeff Smith <jeff.d.smith_at_oracle.com> Sent: 04 January 2018 15:11
To: neil_chandler_at_hotmail.com; oracle-l_at_freelists.org; gogala.mladen_at_gmail.com Subject: RE: SQL Command list history on Linux

Slow to start? Maybe a second, or 3? If it’s taking longer than that, please let me know.

Java 8u50 or higher will be ok, which is about 2-2.5 years old?

It’s a 20mb or so download, so takes less than a minute to install if you don’t have it. Less time than it takes maybe to setup rlwrap…esp if you’re on Windows.

From: Neil Chandler [mailto:neil_chandler_at_hotmail.com] Sent: Thursday, January 04, 2018 7:59 AM To: oracle-l_at_freelists.org; gogala.mladen_at_gmail.com Subject: Re: SQL Command list history on Linux

Mladen,

What has that go to do with the original posters question?

If you are developing PL/SQL in SQL*Plus, you're probably not doing it efficiently. SQL Developer is the better (free) tool for that, regardless of platform.

SQLCI is great, but it's slow to start, requires a fairly recent Java release, and only natively available from 12.2.

If you want Windows-like editing on a Linux SQL*Plus (or dgmgrl, rman or whatever), use rlwrap.

regards

Neil Chandler.

Database Guy.


From: oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org> <oracle-l-bounce_at_freelists.org<mailto:oracle-l-bounce_at_freelists.org>> on behalf of Mladen Gogala <gogala.mladen_at_gmail.com<mailto:gogala.mladen_at_gmail.com>> Sent: 04 January 2018 10:57
To: oracle-l_at_freelists.org<mailto:oracle-l_at_freelists.org> Subject: Re: SQL Command list history on Linux

On 01/02/2018 04:51 PM, Neil Chandler wrote:

Jeff,

My preferred solution is to install "rlwrap" [ e.g. "yum install rlwrap" - check out https://github.com/hanslub42/rlwrap<https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_hanslub42_rlwrap&d=DwMFAw&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=N2hWu5HFsaIjmMkjQbnlokJ7uinNZMgPVk8rqPT9esM&m=0bds7QIoykh2KktiFwI5q5NtAunsmhvpPbDLFAGKbBY&s=cRMpNNnqbVGwt9R-SUJkdE4mCdC-1KZy0LkLX77BvUY&e=> ] it provides similar functionality to a windows CMD environment. You just call the command you want to use via rlwrap

e.g. rlwrap sqlplus, or rlwrap dgmgrl

To keep thing simple, you can alias it

alias rsql='rlwrap sqlplus'

alias rdg='rlwrap dgmgrl'

regards

Neil Chandler

Hi Neil,
Rlwrap is not an equivalent solution. The "rlwrap" trick breaks editing of PL/SQL code, which can be annoying. If you write a multi-line PL/SQL snippet and something goes wrong, "ed" will only return a part of the snippet. SQLCl will do the right thing and give you back the entire procedure. It has a primitive screen editor built into the code because arrow keys also work when editing the history commands. Also, SQLCl has "REPEAT" command which turns your SQLCl session into an instant monitor, if necessary. In addition to all that, there is Jeff Smith, who has been doing an outstanding job with the product and explaining it on this list. Jeff is extremely helpful and a very nice guy. And no, I don't work for Oracle Corp. and I don't plan on working for Oracle anytime soon. Regards

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Mladen Gogala

Oracle DBA

http://mgogala.freehostia.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__mgogala.freehostia.com&d=DwMFAw&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=N2hWu5HFsaIjmMkjQbnlokJ7uinNZMgPVk8rqPT9esM&m=0bds7QIoykh2KktiFwI5q5NtAunsmhvpPbDLFAGKbBY&s=PcMyzBvpXVEJ8OtXmrHXL-cnBgMOPb4mBf88-fufLHU&e=>

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http://www.freelists.org/webpage/oracle-l Received on Thu Jan 04 2018 - 16:56:38 CET

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