SP2-0734: unknown command beginning “sys_contex…” – rest of line ignored

All we need is an easy explanation of the problem, so here it is.

I Googled how to get the username of the current user and was told to use:

SQL> sys_context('userenv', 'session_user')

But when I type that command in, I get the error:

SP2-0734: unknown command beginning "sys_contex…" – rest of line ignored

What am I missing? The Oracle version is Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production

How to solve :

I know you bored from this bug, So we are here to help you! Take a deep breath and look at the explanation of your problem. We have many solutions to this problem, But we recommend you to use the first method because it is tested & true method that will 100% work for you.

Method 1

Use dual table part of select

SQL> SELECT sys_context('userenv', 'session_user') FROM dual;

Documentation:

SYS_CONTEXT

Note: Use and implement method 1 because this method fully tested our system.
Thank you 🙂

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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