Which user/schema executed query in V$SQLAREA

Question

I am looking on one row/query in view "V$SQLAREA" and want to which user/schema was used to log in to the database when that one query was executed. How i can get that schema name?
Should i look this column maybe:
V$SQLAREA
PARSING_SCHEMA_NAME             VARCHAR2(30)      Schema name that was used to parse this child cursor( http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/dynviews_2129.htm )
I have Java software that uses different database schemas/users to make connections to my database. And i want to know for one query which schema/user was used to connect to database before running the query.
I think i need to join "V$SQLAREA" to view V$SESSION and there the column "USERNAME" tells me the connection user name for the executed query.
V$SESSION
USERNAME      VARCHAR2(30)      Oracle username
( http://download.oracle.com/docs/cd/B19306_01/server.102/b14237/dynviews_2088.htm )Seems like i fail to join "V$SQLAREA" to view V$SESSION:
select q.SQL_TEXT, q.sql_id, q.PARSING_SCHEMA_NAME, q.ADDRESS, q.last_active_time, s.USERNAME, s.SCHEMANAME from v$sqlarea q, v$session s
where q.last_active_time > sysdate - 1
and q.sql_text like 'DELETE FROM casino.lgngameoperationlog WHERE sessionCode%'
and s.sql_address=q.address
order by last_active_time desc
no rows found
select q.SQL_TEXT, q.sql_id, q.PARSING_SCHEMA_NAME, q.ADDRESS, q.last_active_time from v$sqlarea q
where q.last_active_time > sysdate - 1
and q.sql_text like 'DELETE FROM casino.lgngameoperationlog WHERE sessionCode%'
order by last_active_time desc
'DELETE FROM casino.lgngameoperationlog WHERE sessionCode = :1 and sessionType = :2';     51thfgbubkkg6;     JAVA;     0000000392523658;     28.10.2010 18:09:14;
*/

Answer 1

I have Java software that uses different database schemas/users to make connections to my database. And i want to know for one query which schema/user was used to connect to database before running the query.If the SQL-text sits inside your Java code, that is the text does not sit inside some stored pl/sql program unit, then you can use parsing_schema_id, yes.
If the SQL-text sits inside a stored procedure, then depending on how that procedure is defined (invoker rights or definer rights), you could use parsing_schema_id too (in the first case (invoker rights)).