Mysql Insert

For some reason Mysql Insert never works, It’s either NULL or an Syntax error

Is there a problem with this node?

No, not that I am aware of. The last time I tried it (last week) it worked fine.

Every time i´ve tried using it it either just inserts NULL or raises an syntax error, Could it be because not all value´s are populated?

Can you please post an example of what you are doing exactly. We can then have a look.