Yet another example on how to create and populate an STS

Here is how to create an STS and populate it with SQL statements matching a particular SQL ID:

exec dbms_sqltune.create_sqlset(sqlset_name=>'mysts');

DECLARE
  my_cur  dbms_sqltune.sqlset_cursor;
BEGIN
  OPEN my_cur FOR
     SELECT VALUE(x)
     FROM   TABLE( dbms_sqltune.select_cursor_cache(basic_filter=>'sql_id = ''45wmakdh9ak9s''')) x;

     dbms_sqltune.load_sqlset(sqlset_name => 'mysts', populate_cursor => my_cur);
END;
/

Check the contents of the STS:

set lines 200

col name format a20
col owner format a20
col created format a30
col statement_count format 999999999999
select name,owner,created,statement_count
from dba_sqlset
where name = 'mysts';

And check the details of the statements packed in the STS, like this:

select sql_id,plan_timestamp,parsing_schema_name,plan_hash_value,round(elapsed_time/1000000) "duration in seconds",cpu_time,buffer_gets,disk_reads,executions
from   dba_sqlset_statements
where  sqlset_name = 'mysts'
fetch first 3 rows only;

SQL_ID	PLAN_TIMESTAMP	PARSING_SCHEMA_NAME	PLAN_HASH_VALUE	duration in seconds	CPU_TIME	BUFFER_GETS	DISK_READS	EXECUTIONS
45wmakdh9ak9s	18.09.2018 23:48:21	SCOTT	4026264003	7718	1331447472	336095417	828189	40286996