I want to be able to list the field names and their
description (varchar, number, date, etc) using Perl DBI.
But I cant do it! Is there a way to do it?
This is what I am trying to do right now:
$dbh = Call our algorithm that connects us to the DB.
if (!$dbh)
{
print "Cannot connect to database: $DBI::errstr\n";
}
$sth = $dbh->prepare(q{desc userinfo});
$sth->execute();
$dbh->disconnect;
exit(1);
This is what I get:
DBD::Oracle::db prepare failed: ORA-00900: invalid SQL statement (DBD: error possibly near <*> indicator at char 1 in '<*>desc userinfo') at ./get-userinfo-fields.pl line 38.
Can't call method "execute" on an undefined value at ./get-userinfo-fields.pl line 39.
Is there also a way in which I can get the field names in
a SELECT clause? Is there a reserved word like, for example, if I wanted to search for all the tables in a DB, I would do "select table_name from all_tables"?
Thanks!
Robert
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.