Ask the Expert

PL/SQL ignores ASCII null characters

I am trying to send an escape sequence to a dot matrix printer. But the sequence has embedded ASCII null characters (i.e., chr(0)), and PL/SQL seems to ignore the first null and all sequence bytes after. Why is this and what is the workaround?

    Requires Free Membership to View

Try using chr(32). Chr(32) equals a space.

For example:

select 'ABC' ||chr(32)||chr(32)||'DEF' from dual

Result: 'ABC DEF'

This was first published in August 2006

There are Comments. Add yours.

 
TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: