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Viewing before and after trigger change

Yoni SadeSep 21 2008 — edited Sep 21 2008
I remember there is a way to show in SQLPLUS the before and after image of an UPDATE statement going through a trigger.
Can someone tell me what's the SQLPLUS syntax to enable this output ?

Comments

Regarding writing to Oracle, start by reading the https://oracle.github.io/node-oracledb/doc/api.html
Consuming "a web service" can be done with the http module which is part of Node.js. Check out the manual and doc like https://nodejs.org/en/knowledge/HTTP/clients/how-to-create-a-HTTP-request/

Billy Verreynne

Why nodejs and not use only PL/SQL? Far fewer moving parts.

Arif2018

i am not sure on how pl/sql works , Appreciate if you can post some links. All i want is to read the url and insert data into Oracle table.

Billy Verreynne

Oracle has the UTL_HTTP package API and the HttpUriType advance datatype (oo class).
Sample code provided in manual and you can also look at https://community.oracle.com/tech/developers/discussion/comment/10450611/#Comment_10450611 and as for the oo class:

SQL> select httpuritype( 'http://google.com' ).getClob() as "HTML" from dual;

HTML
-------------------------------------------------------------------------------
<!doctype html><html itemscope="" itemtype="http://schema.org/WebPage" lang="en
-ZA"><head><meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
..snipped..

In PL/SQL use:

clobVariable := new HttpUriType(urlVariable).getClob();
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Locked on Oct 19 2008
Added on Sep 21 2008
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