I'd suggest going to the link I provided and just following the instructions there. Here's a sample:

CREATE EVENT SESSION [QueryMetrics] ON SERVER

ADD EVENT sqlserver.rpc_completed(

WHERE ([sqlserver].[equal_i_sql_unicode_string]([sqlserver].[database_name],N'AdventureWorks2012'))),

ADD EVENT sqlserver.sql_batch_completed(

WHERE ([sqlserver].[equal_i_sql_unicode_string]([sqlserver].[database_name],N'AdventureWorks2012')))

ADD TARGET package0.event_file(SET filename=N'C:\Data\MSSQL11.RANDORI\MSSQL\Log\QueryMetrics.xel',max_file_size=(5120),max_rollover_files=(2))

GO

That captures two events, rpc_completed and sql_batch_completed. I have filters in place so I only capture information for one database. The target is output to a file that's limited to 5gb and 2 files. You can adjust as needed. That will output XML and you'll need to query that or load it into a table to be queried. Again, the link I provided has tons and tons of information on how to get all this done.