Thread: calling webservice through postgresql function
<div class="Section1"><p class="MsoNormal">Hi all,<p class="MsoNormal"> <p class="MsoNormal">I want to call webservice frommy postgresql database. Please let me know if anyone has idea.<p class="MsoNormal"> <p class="MsoNormal">Thanks,<p class="MsoNormal">JyotiSeth</div>
Jyoti Seth wrote: > Hi all, > > I want to call webservice from my postgresql database. Please let me know if > anyone has idea. You can use any of the "untrusted" procedural languages to access resources outside the database (e.g. pl/perlu), or of course C. -- Richard Huxton Archonet Ltd
Thanks a lot for ur quick response. I have searched a lot on net for code to call a webservice through tcl/tk or any other scripting lang that is supported by postgresql, but couldn't find one. If u can provide me some code to call a web service through postgresql it would be a great help. Thanks, Jyoti Setj -----Original Message----- From: Richard Huxton [mailto:dev@archonet.com] Sent: Friday, July 13, 2007 12:57 PM To: Jyoti Seth Cc: pgsql-sql@postgresql.org Subject: Re: [SQL] calling webservice through postgresql function Jyoti Seth wrote: > Hi all, > > I want to call webservice from my postgresql database. Please let me know if > anyone has idea. You can use any of the "untrusted" procedural languages to access resources outside the database (e.g. pl/perlu), or of course C. -- Richard Huxton Archonet Ltd
Jyoti Seth wrote: > Thanks a lot for ur quick response. I have searched a lot on net for code to > call a webservice through tcl/tk or any other scripting lang that is > supported by postgresql, but couldn't find one. If u can provide me some > code to call a web service through postgresql it would be a great help. Just use pl/perlu (or pythonu or tclu) in whatever way you would normally "call a webservice". That side of things has nothing to do with PG (other than the fact that it will hold up your query). If you don't know how to "call a webservice" then you'll need to check with one of the developer forums for your language of choice I'm afraid. -- Richard Huxton Archonet Ltd
am Fri, dem 13.07.2007, um 13:01:30 +0530 mailte Jyoti Seth folgendes: > Thanks a lot for ur quick response. I have searched a lot on net for code to > call a webservice through tcl/tk or any other scripting lang that is > supported by postgresql, but couldn't find one. If u can provide me some > code to call a web service through postgresql it would be a great help. As Richard says, use an untrusted language like pl/perlU (U means untrusted) to call arbitrary external programs. Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header) GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net
Good day, Jyoti. JS> I want to call webservice from my postgresql database. Please let me know if anyone has idea. Idia or proper tool? If idea, I offer to append some code into source of pg. I already raised this question in topic "We all are looped on Internet", in which i read, that the most widespread transport protocol is HTTP, and the most general format for data is XML (XHTML). Idea is so: if we made create table a ( id num primary key, data float ); create table b ( id num primary key, ref num references a(id), data float ); create table c ( id num primary key, link num references b(id), data float ); insert into a values (1, 12.3); insert into b values (10, 1, 23.4); insert into b values (20, 1, 34.5); insert into b values (30, 1, 45.6); insert into c values (100,10,56.7); insert into c values (101,10,67.8); insert into c values (200,20,78.9); insert into c values (201,20,89.1); insert into c values (300,30,91.2); we need simple request 'a.b.c' to get <a id=1 data=12.3> <b id=10 data=23.4> <c id=100 data=56.7/> <c id=101 data=67.8/> </b> <b id=20 data=34.5> <c id=200 data=78.9/> <c id=201 data=89.1/> </b> <b id=30 data=45.6> <c id=200 data=91.2/> </b> </a> Request 'a.b.c' allow to avoid php,etc, that is very necessary for unskilled users! Details are on: http://sql40.chat.ru/site/sql40/en/author/introduction_eng.htm http://sql40.chat.ru/site/sql40/en/author/determination_eng.htm http://sql40.chat.ru/site/sql40/en/author/inout_eng.htm Dmitry Turin HTML6 (6.1.2) http://html60.chat.ru SQL4 (4.1.2) http://sql40.chat.ru Unicode2 (2.0.0) http://unicode2.chat.ru Computer2 (2.0.3) http://computer20.chat.ru
Hello Dmity, As suggested by Richard Huxton in this forum we can use any of the "untrusted" procedural languages to access resources outside the database (e.g. pl/perlu). You can get the code to call the webservice from the postgresql function from this url. http://www.pgsql.cz/index.php/PL/Perlu_-_Untrusted_Perl_(en) Thanks, Jyoti -----Original Message----- From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql-owner@postgresql.org] On Behalf Of Dmitry Turin Sent: Monday, July 16, 2007 6:49 PM To: pgsql-sql@postgresql.org Subject: Re: [OBORONA-SPAM] [SQL] calling webservice through postgresql function Good day, Jyoti. JS> I want to call webservice from my postgresql database. Please let me know if anyone has idea. Idia or proper tool? If idea, I offer to append some code into source of pg. I already raised this question in topic "We all are looped on Internet", in which i read, that the most widespread transport protocol is HTTP, and the most general format for data is XML (XHTML). Idea is so: if we made create table a ( id num primary key, data float ); create table b ( id num primary key, ref num references a(id), data float ); create table c ( id num primary key, link num references b(id), data float ); insert into a values (1, 12.3); insert into b values (10, 1, 23.4); insert into b values (20, 1, 34.5); insert into b values (30, 1, 45.6); insert into c values (100,10,56.7); insert into c values (101,10,67.8); insert into c values (200,20,78.9); insert into c values (201,20,89.1); insert into c values (300,30,91.2); we need simple request 'a.b.c' to get <a id=1 data=12.3> <b id=10 data=23.4> <c id=100 data=56.7/> <c id=101 data=67.8/> </b> <b id=20 data=34.5> <c id=200 data=78.9/> <c id=201 data=89.1/> </b> <b id=30 data=45.6> <c id=200 data=91.2/> </b> </a> Request 'a.b.c' allow to avoid php,etc, that is very necessary for unskilled users! Details are on: http://sql40.chat.ru/site/sql40/en/author/introduction_eng.htm http://sql40.chat.ru/site/sql40/en/author/determination_eng.htm http://sql40.chat.ru/site/sql40/en/author/inout_eng.htm Dmitry Turin HTML6 (6.1.2) http://html60.chat.ru SQL4 (4.1.2) http://sql40.chat.ru Unicode2 (2.0.0) http://unicode2.chat.ru Computer2 (2.0.3) http://computer20.chat.ru ---------------------------(end of broadcast)--------------------------- TIP 2: Don't 'kill -9' the postmaster
Good day, Jyoti. JS> we can use any of the "untrusted" procedural languages JS> http://www.pgsql.cz/index.php/PL/Perlu_-_Untrusted_Perl_(en) What !! There is no need to have CREATE OR REPLACE FUNCTION open FILE, $_[0]; my @cntn = (); while (<FILE>) { } __Youas man (by hands) convert__ tree of data into database tables by procedural language once again. You are wrong: all, which is necessary, is to have __a.b.c__ in language for JS> create table a ( JS> id num primary key, JS> data float JS> ); JS> create table b ( JS> id num primary key, JS> ref num references a(id), JS> data float JS> ); JS> create table c ( JS> id num primary key, JS> link num references b(id), JS> data float JS> ); JS> to access resources outside the database JS> (e.g. pl/perlu). There is no need to have CREATE OR REPLACE FUNCTION use DBI; my $dbh = DBI->connect('dbi:mysql:'.$_[0],$_[1],$_[2], { RaiseError => 1, AutoCommit = > }); __You as man (by hands) install connect__ between DBMS and external world by procedural language once again. You are wrong once again: advantage is to __refuse__ from procedural language (to install connect) instead of put it from outside of DBMS into inside of DBMS. All, which is necessary, is DBMS itself listen some port/protocol. Dmitry Turin SQL4 (4.1.3) http://sql40.chat.ru HTML6 (6.3.0) http://html6.by.ru Unicode2 (2.0.0) http://unicode2.chat.ru Computer2 (2.0.3) http://computer20.chat.ru
Good day, Jyoti.
JS>> (e.g. pl/perlu).
DT> __You as man (by hands) install connect__ between DBMS and external world
DT> by procedural language once again.
DT> You are wrong once again:
DT> advantage is to __refuse__ from procedural language (to install connect)
DT> instead of put it from outside of DBMS into inside of DBMS.
DT> All, which is necessary, is DBMS itself listen some port/protocol.
My version:
(1.1)
User send to remote database (HTTP will ask login):
c:/dir> xml2http.exe database.my.com username password a.xml
for example
c:/dir> dbf2xml.exe a.dbf | xml2http.exe database.my.com username password
(1.2)
User send to local database (at transformation data between DBMS-s):
c:/dir> xml2http.exe 127.0.0.1 username password a.xml
for example
c:/dir> dbf2xml.exe a.dbf | xml2http.exe 127.0.0.1 username password
(2.1)
Database send to local file (at transformation data between DBMS-s):
pg> copy a.b.c to filename.xml;
(2.2)
Database send to remote database
(if 'sys.username' and 'sys.password' are equal null,
then database sends as anonymous):
pg> update sys set
pg> ral="database.remote.com",
pg> username=
pg> password= ;
pg> a.b.c ->;
or
pg> update sys set
pg> ran="101.102.103.104",
pg> username=
pg> password= ;
pg> a.b.c ->;
or if you prefer to export per table
pg> update sys set ral="database.remote.com";
pg> create view av as select * from a where ...
pg> create view bv as select * from b where ...
pg> create view cv as select * from c where ...
pg> av ->;
pg> bv ->;
pg> cv ->;
Once again: users need simple instruments, instead of your (in you link)
JS>> CREATE OR REPLACE FUNCTION
JS>> use DBI;
JS>> my $dbh = DBI->connect('dbi:mysql:'.$_[0],$_[1],$_[2],
JS>> { RaiseError => 1, AutoCommit = > });
Do you understand me ?
Dmitry Turin
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