How to create table in Dynamics 365?

Now, in dynamics 365 no customization from AOT directly, but you must develop from the visual studio

Ax 2012, if you need to create a table, just open AOT and go to data dictionary/tables /right click /new table.

Now, in dynamics 365 as the same but from visual studio as the following
go to visual studio and create new project

select Dynamics 365 templates  and assign the name and location

right click on the new project and click add the new item

select data model from dynamics 365 items and click on table, and assign the name for this table

now your table added to your project

now add your fields 

and if this table related to another, you can create the relation 

don't forget indexes to enhance performance  

if  you need to be a professional, you can create fields group to organize your work and use this groups in the design of forms and reports,...etc

Finally, build your solution 

thanks.