在10g/11g中如何查看SQL Profiles的信息？  

在Oracle 10g中，可以查询以下的数据字段表来获取信息：  
SQLPROF$ATTR、SQLPROF$、SQLPROF$DESC  

在Oracle 11g中，上面的数据字典表被取而代之，可以访问下面的数据字段表来获取信息：  
SQLOBJ$、SQLOBJ$AUXDATA、SQLOBJ$DATA  

示例如下：  
Oracle 10g中：  
SQL> select attr_val from dba_sql_profiles a, sys.sqlprof$attr b   
  2  where a.signature = b.signature   
  3  and a.name='SYS_SQLPROF_0158d954d210000';   

ATTR_VAL  
----------------------------------------------------------------------------------------------------  
FULL(@"SEL$1" "T1"@"SEL$1")  
INDEX(@"SEL$1" "T2"@"SEL$1" ("T2"."OBJECT_ID"))  
LEADING(@"SEL$1" "T1"@"SEL$1" "T2"@"SEL$1")  
USE_NL(@"SEL$1" "T2"@"SEL$1")  

SQL> select object_name,object_type from dba_objects where object_Name like 'SQLPROF%';  

OBJECT_NAME                    OBJECT_TYPE  
------------------------------ -------------------  
SQLPROF$                       TABLE  
SQLPROF$ATTR                   TABLE  
SQLPROF$DESC                   TABLE  
SQLPROF_ATTR                   TYPE  
SQLPROF_ATTR                   SYNONYM  

这些表的创建语句可以从sql.bsq中获取。  

Oracle 11g中：  
SQL> select name from dba_sql_profiles;  

NAME  
------------------------------  
SYS_SQLPROF_0141d9f2f2a60001  
SYS_SQLPROF_0141d9e54d180000  

SQL> set autotrace on  
SQL> SELECT extractValue(value(h),'.') AS hint  
  2  FROM sys.sqlobj$data od, sys.sqlobj$ so,  
  3  table(xmlsequence(extract(xmltype(od.comp_data),'/outline_data/hint'))) h  
  4  WHERE so.name = 'SYS_SQLPROF_0141d9e54d180000'  
  5  AND so.signature = od.signature  
  6  AND so.category = od.category  
  7  AND so.obj_type = od.obj_type  
  8  AND so.plan_id = od.plan_id;  
   
HINT  
----------------------------------------------------------------------  
OPT_ESTIMATE(@"SEL$1", TABLE, "T1"@"SEL$1", SCALE_ROWS=0.01440028801)  
OPTIMIZER_FEATURES_ENABLE(default)  

SQL> select object_name,object_type from dba_objects where object_name like 'SQLOBJ%';  

OBJECT_NAME                    OBJECT_TYPE  
------------------------------ -------------------  
SQLOBJ$                        TABLE  
SQLOBJ$AUXDATA                 TABLE  
SQLOBJ$DATA                    TABLE  
SQLOBJ$DATA_PKEY               INDEX  
SQLOBJ$_PKEY                   INDEX  

在Oracle 11g中，这些创建表的语句被从sql.bsq中剥离了出来，在11g中，被剥离到了dmanage.bsq中，并通过sql.bsq中调用来进行表的创建。  
$cat $ORACLE_HOME/rdbms/admin/sql.bsq  
........  
rem !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! IMPORTANT !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!  
rem Whenever new column is created to store internal, user or kernel column  
rem number, be sure to update the structure adtDT in atb.c so that those  
rem columns will be updated properly during drop column.  
rem !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!  
rem  
dcore.bsq  
dsqlddl.bsq  
dmanage.bsq  
dplsql.bsq  
dtxnspc.bsq  
dfmap.bsq  
denv.bsq  
drac.bsq  
dsec.bsq  
doptim.bsq  
dobj.bsq  
djava.bsq  
dpart.bsq  
drep.bsq  
daw.bsq  
dsummgt.bsq  
dtools.bsq  
dexttab.bsq  
ddm.bsq  
dlmnr.bsq  
ddst.bsq