How good are VBA, Macro and SQL in using Visual Basic for applications?

First of all: We can use VBA  (Visual Basic for applications) to create simple programs in Excel or Access.

Macro: is a group of actions somebody wants to repeate several times >> so you can save all the group of actions in a macro then when the macro runs all the actions will run one after the other.

SQL:  is a language to manage database. ( it is used in all of access, Oracle and SQl sever)