why column name carries _ at the end

[logicallimit]

I am developing a custom application like explorer for a client. I need to create many new tables in the database to fulfill requirement. I was looking at the existing activiti tables and found that each column name ends with an underscore "_". Is there any particular reason this is done so. Is any business logic dependent on this naming convention?

And secondly, do I need to follow any particular naming convention while naming tables and columns for my customization?

[jbarrez]

The reason is to avoid any conflict with any database and reserved keywords.

"And secondly, do I need to follow any particular naming convention while naming tables and columns for my customization?"

No, you don't. That's all up to you.

[logicallimit]

Ah Ok! Got it.

Thank you so much for this information.