there are some simple steps to learn that how to create database and tables in sql server.
Step 1:- Open SQL Server management Studio,
then a new popup window will display as below image:
Select Authentication Type Windows/Sql Authentication, and click on connect button.
Step 2:- below image shows the Sql server main window, Click on New Query and write the query to create the new database and click on Execute
Step 3:- If there are more than one database and you want to create a new table in a database then you have the need to execute the below query first to select the appropriate database as below image.
After the use databaseName query you can execute the create, insert/Update/Delete table query.