August 1999
Intermediate to advanced
1488 pages
72h 53m
English
Content preview from Pure JavaScript
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database.connected()
NES2+Syntax
database.connected()
Description
The connected() method of the database object tells if the connection to the database is still active.
Example
Listing 8.41 creates a connection to a database. If the connection is made, any code within that section is executed. If the connection fails, the error is written to the page.
Listing 8.41 Testing a Connection with the connected() Method
<SERVER>
// Open a connection
var myConn = database.connect("ORACLE", "mySID", "myApp", "appsPWD", "myTNS");
if (myConn.connected()) {
// You are connected, so perform any tasks here
}else{
// There was an error connecting to the database
write('Error ('+myConn.majorErrorCode()+'): '+myConn.majorErrorMessage);
}
</SERVER>
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.