The best way to connect to a database is through the perl DBI module. This makes access to any given SQL db a cinch. Just install the DBI module, and then the DBD module for the given database. The DBD module is a driver not completely unlike a JDBC driver in Java.
Here is an example to connect to a PostgreSQL database, make a select and read the data. Also, there is data for an INSERT, DROP, or other non-returning stuff. # Use DBI for generic database access
use DBI;
# DBI connect
$dbh = DBI->connect("DBI:Pg:dbname=$DBName", "$DBUserName", "$DBPasswd
+")
or die "connectiong: $DBI::errstr";
# Make an sql SELECT
$query = "SELECT * from table1 WHERE pacos='tacos'";
# this is goofy, you prepare it, then actually execute it
# beware, this does not mean it is a prepared statement
$results = $dbh->prepare($query);
$results->execute or die "Exec err: ", $dbh->errstr;
# get the results and print them out
while ((@row) = $results->fetchrow_array) {
print join(" | ", @row), "\n";
}
# a simple insert
$sql = "INSERT into table1 (pacos) values ('tacos')";
$dbh->do($sql) or print "Error inserting...";
# Disconnect at the end
# $dbh->disconnect;
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|
