Oracle execute and call

--execute和call的区别

-------------------------2014/01/14

EXEC is a sqlplus command that put its argument as an anonymous pl/sql block: 'EXEC xxx' is transformed to 'BEGIN xxx; END;' 

So you can use it to call a procedure, or do any pl/sql 

It is documented here: 
http://download.oracle.com/docs/cd/B19306_01/server.102/b14357/ch12022.htm#i2697931 

CALL is a SQL statement that calls a stored procedure 
It is the 'standard' way to call a procedure without doing pl/sql. 
For example if you call a procedure from JDBC it uses CALL to call the procedure and return parameters. 

It is documented here: 
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_4008.htm#BABDEHHG 

Now about v$sql, I can see both: 

SQL> call dbms_output.put_line('called'); 
Call completed. 
SQL> select sql_text from v$session join v$mystat using(sid) join v$sql on(v$sql.sql_id=v$session.prev_sql_id)where rownum=1; 
SQL_TEXT 
------------------------------------------------------------------------------------------------------------------------------------ 
call dbms_output.put_line('called') 

SQL> exec dbms_output.put_line('executed'); 
PL/SQL procedure successfully completed. 
SQL> select sql_text from v$session join v$mystat using(sid) join v$sql on(v$sql.sql_id=v$session.prev_sql_id)where rownum=1; 
SQL_TEXT 
------------------------------------------------------------------------------------------------------------------------------------ 
BEGIN dbms_output.put_line('executed'); END;