create or replace view SQL_SHARED_CURSOR
as select * from sys.v$sql_shared_cursor;
create or replace view h$pseudo_cursor as
select Pseudo_cursor, sql_id,obj_id hex_obj_id
,obj# object_id, u.name owner, o.name object_name
,address,hash_value,SHARABLE_MEM,parse_calls,VERSION_COUNT,is_obsolete
from (select distinct
KGLNAOBJ Pseudo_cursor,kglobt03 sql_id
,KGLHDPAR address,KGLNAHSH hash_value
,KGLOBHS0+KGLOBHS1+KGLOBHS2+KGLOBHS3+KGLOBHS4+KGLOBHS5+KGLOBHS6 SHARABLE_MEM
,KGLOBT12 parse_calls
,KGLOBCCC VERSION_COUNT
,decode(kglobt33, 1, 'Y', 'N') is_obsolete
,substr(KGLNAOBJ
,instr(KGLNAOBJ,'_',1,3)+1
,instr(KGLNAOBJ,'_',1,4)-instr(KGLNAOBJ,'_',1,3)-1) obj_id
,(case when
replace(translate(substr(upper(KGLNAOBJ)
,instr(KGLNAOBJ,'_',1,3)+1
,instr(KGLNAOBJ,'_',1,4)
-instr(KGLNAOBJ,'_',1,3)-1)
,'0123456789ABCDEF','................')
,'.') is null then 'Y' else 'N' end) is_safe_to_compare
from x$kglob) k
, obj$ o, user$ u
where obj#=decode(is_safe_to_compare,'Y',to_number(obj_id,'xxxxxxxxxx'),0)
and o.owner#=u.user#;
Create or replace view H$PARAMETER
as
select a.ksppinm NAME,
a.ksppdesc DESCRIPTION,
b.ksppstvl SESSION_VALUE,
c.ksppstvl SYSTEM_VALUE
from x$ksppi a, x$ksppcv b, x$ksppsv c
where a.indx = b.indx and a.indx = c.indx;
create or replace function debug_version_rpt return DBMS_DEBUG_VC2COLL PIPELINED is
v_status number;
v_info varchar2(32767);
begin
loop
v_status := dbms_pipe.receive_message('version_rpt',0);
if v_status = 0 then
dbms_pipe.unpack_message(v_info);
pipe row (v_info);
else
return;
end if;
end loop ;
end;
/
create or replace function version_rpt(p_sql_id varchar2 default null,p_hash number default null,p_debug char default 'N') return DBMS_DEBUG_VC2COLL PIPELINED is
type vc_arr is table of varchar2(32767) index by binary_integer;
type num_arr is table of number index by binary_integer;
v_version varchar2(100);
v_instance varchar2(100);
v_colname vc_arr;
v_Ycnt num_arr;
v_count number:=-1;
v_no number;
v_all_no number:=-1;
v_query varchar2(4000);
v_sql_where varchar2(4000):='';
v_sql_where2 varchar2(4000):='';
v_sql_id varchar2(15):=p_sql_id;
v_addr varchar2(100);
V_coladdr varchar2(100);
v_hash number:=p_hash;
v_mem number;
v_parses number;
v_obs number;
v_value varchar2(100);
theCursor number;
columnValue char(1);
status number;
v_driver varchar2(1000);
TYPE cursor_ref IS REF CURSOR;
vc cursor_ref;
v_bind_dumped boolean:=false;
v_auth_dumped boolean:=false;
v_phv num_arr;
v_phvc num_arr;
procedure debugme(p_info varchar2) is
v_st number;
begin
if p_debug='Y' then
dbms_pipe.pack_message(p_info);
v_st := dbms_pipe.send_message('version_rpt',5);
if v_st=1 then dbms_pipe.purge('version_rpt'); end if;
end if;
end;
BEGIN
if p_debug='Y' then
status:=DBMS_PIPE.CREATE_PIPE ( pipename=>'version_rpt',maxpipesize=>1024*1024);
if status<>0 then pipe row ('Cannot debug'); return; end if;
end if;
debugme('instance version');
select version,'Host: '||HOST_NAME||' Instance '||INSTANCE_NUMBER||' : '||INSTANCE_NAME
into v_version , v_instance from v$instance;
debugme('build v$sqlarea query for '||v_sql_id||' '||v_hash);
/*
This aggregate query is in the cases where
1) So many versions of the same SQL that many parents have been obsoleted.
2) there are more than 1 SQL with the same hash value or sql_id (very rare)
*/
v_query:='select '|| case when v_version like '9%' then '(NULL)' else '(sql_id)' end ||' sql_id,'
|| 'max(sql_text) query,'
|| 'max(hash_value) hash,'
|| 'max(rawtohex(ADDRESS)) addr,'
|| 'sum(SHARABLE_MEM) SHARABLE_MEM,'
|| 'sum(PARSE_CALLS) PARSE_CALLS,'
|| 'sum(case IS_OBSOLETE when ''Y'' then VERSION_COUNT else 0 end) obs'
|| ' from v$sqlarea where'
|| case when v_sql_id is not null then ' sql_id=:v_sql_id' else ' hash_value=:v_hash' end
|| ' group by '|| (case when v_version like '9%' then 'NULL' else 'sql_id' end);
debugme(v_query);
if v_sql_id is not null then
open vc for v_query using v_sql_id;
else
open vc for v_query using v_hash;
end if;
debugme('Successful open cursor');
PIPE ROW('Version Count Report Version 3.2.2 -- Today''s Date '||to_char(sysdate,'dd-mon-yy hh24:mi')) ;
PIPE ROW('RDBMS Version :'||v_version||' '||v_instance);
debugme('fetch '||v_sql_id||' '||v_hash);
fetch vc into v_sql_id, v_query,v_hash,v_addr,v_mem,v_parses,v_obs;
if vc%notfound then
/* This execption could mean 2 things
1) The user gave a wrong SQLID
2) The SQLID belongs to a pseudo cursor.
if 2) then the info will not be in v$sqlarea so will try h$pseudo_cursor.
I do not query h$pseudo_cursor since the start to avoid as much as possible to access x$ views directly
due to their mutex and latch restrictions and to take advantage of any optimizations done in v$sqlarea.
*/
v_query:= replace(v_query,'v$sqlarea','H$PSEUDO_CURSOR');
v_query:= replace(v_query,'sql_text','Pseudo_cursor||''(PseudoCursor of ''||owner||''.''||object_name||'')''');
debugme(v_query);
close vc;
if v_sql_id is not null then
open vc for v_query using v_sql_id;
else
open vc for v_query using v_hash;
end if;
fetch vc into v_sql_id, v_query,v_hash,v_addr,v_mem,v_parses,v_obs;
if vc%notfound then
return; /* Sorry, really is not in the library cache. */
end if;
end if;
close vc;
debugme('Header');
v_colname.delete;
v_Ycnt.delete;
v_count:=-1;
v_no:=0;
v_all_no:=-1;
PIPE ROW('==================================================================');
PIPE ROW('Addr: '||case when v_obs>0 then '*** MULTIPLE!!! ***' else v_addr end||' Hash_Value: '||v_hash||' SQL_ID '||v_sql_id);
PIPE ROW('Sharable_Mem: '||v_mem||' bytes Parses: '||v_parses);
PIPE ROW('Stmt: ');
for i in 0 .. trunc(length(v_query)/64)+1 loop
debugme('Print query line '||i);
PIPE ROW(i||' '||substr(v_query,1+i*64,64));
end loop;
debugme('Fetch SQL_SHARED_CURSOR columns');
SELECT COLUMN_NAME,0 bulk collect into v_colname,v_Ycnt
from cols
where table_name='SQL_SHARED_CURSOR'
and CHAR_LENGTH=1
order by column_id;
v_query:='';
debugme('Build Select List');
for i in 1 .. v_colname.count loop
v_query:= v_query ||','|| v_colname(i);
end loop;
debugme('Build Where');
if v_version like '9%' then
v_sql_where:=' WHERE ADDRESS=HEXTORAW('''||V_ADDR||''')';
v_sql_where2:=' WHERE KGLHDPAR=HEXTORAW('''||V_ADDR||''')';
elsif v_sql_id is not null then
v_sql_where:=' WHERE SQL_ID='''||v_sql_id||'''';
v_sql_where2:=v_sql_where;
else
v_sql_where:=' WHERE ADDRESS=HEXTORAW('''||V_ADDR||''')';
v_sql_where2:=v_sql_where;
end if;
debugme('Build Query');
v_query:= 'SELECT '||substr(v_query,2) || ' FROM SQL_SHARED_CURSOR ';
v_query:=v_query||v_sql_where2;
debugme(substr(v_sql_where2,-80));
debugme('Open Query');
begin
theCursor := dbms_sql.open_cursor;
sys.dbms_sys_sql.parse_as_user( theCursor, v_Query, dbms_sql.native );
for i in 1 .. v_colname.count loop
dbms_sql.define_column( theCursor, i, columnValue, 8000 );
end loop;
status := dbms_sql.execute(theCursor);
debugme('Initiate Fetch');
while (dbms_sql.fetch_rows(theCursor) >0) loop
v_no:=0;
v_count:=v_count+1;
debugme('Fetch row '||v_count);
for i in 1..v_colname.count loop
dbms_sql.column_value(theCursor, i, columnValue);
-- debugme('Decode row '||v_count||' column '||i);
if columnValue='Y' then
v_Ycnt(i):=v_Ycnt(i)+1;
else
v_no:=v_no+1;
end if;
end loop;
if v_no=v_colname.count then
v_all_no:=v_all_no+1;
end if;
end loop;
dbms_sql.close_cursor(theCursor);
end;
debugme('Version summary');
PIPE ROW('');
PIPE ROW('Versions Summary');
PIPE ROW('----------------');
for i in 1 .. v_colname.count loop
if v_Ycnt(i)>0 then
PIPE ROW(v_colname(i)||' :'||v_Ycnt(i));
end if;
end loop;
If v_all_no>1 then
PIPE ROW('Versions with ALL Columns as "N" :'||v_all_no);
end if;
PIPE ROW(' ');
PIPE ROW('Total Versions:'||v_count);
PIPE ROW(' ');
PIPE ROW('~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ');
V_value:=NULL;
v_query:='select max(SYSTEM_VALUE) into :v_value from h$parameter where name=''cursor_sharing'' ';
execute immediate v_query into v_value;
if v_value is not null then
PIPE ROW('cursor_sharing = '||v_value);
end if;
if v_obs>0 then
PIPE ROW(' ');
PIPE ROW('Total Obsolete Versions :'||v_obs);
PIPE ROW('Total Non-Obsolete Versions :'||abs(v_count-v_obs));
V_NO:=NULL;
v_query:='select max(SYSTEM_VALUE) into :v_no from h$parameter where name=''_cursor_obsolete_threshold'' ';
execute immediate v_query into v_no;
if v_no is not null then
PIPE ROW('(See Note:10187168.8) _cursor_obsolete_threshold = '||v_no);
end if;
end if;
PIPE ROW('~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ');
PIPE ROW(' ');
v_phv.delete;
v_phvc.delete;
debugme('PHV');
v_query:='select plan_hash_value,count(*) from v$sql '||v_sql_where||' group by plan_hash_value';
execute immediate v_query bulk collect into v_phv,v_phvc;
PIPE ROW('Plan Hash Value Summary');
PIPE ROW('-----------------------');
PIPE ROW('Plan Hash Value Count');
PIPE ROW('=============== =====');
for i in 1 .. v_phv.count loop
PIPE ROW(to_char(v_phv(i),'99999999999999')||' '||to_char(v_phvc(i)));
end loop;
PIPE ROW(' ');
for i in 1 .. v_colname.count loop
debugme('Diag for '||v_colname(i)||' Ycnt:'||v_Ycnt(i));
if v_Ycnt(i)>0 then
PIPE ROW('~~~~~~~~~~~~~~'||rpad('~',length(v_colname(i)),'~'));
PIPE ROW('Details for '||v_colname(i)||' :');
PIPE ROW('');
if ( v_colname(i) in ('BIND_MISMATCH','USER_BIND_PEEK_MISMATCH','BIND_EQUIV_FAILURE','BIND_UACS_DIFF')
or (v_version like '11.1%' and v_colname(i)='ROW_LEVEL_SEC_MISMATCH')) then
if v_bind_dumped=true then -- Dump only once
PIPE ROW('Details shown already.');
else
v_bind_dumped:=true;
if v_version like '9%' then
PIPE ROW('No details for '||v_version);
else
PIPE ROW('Consolidated details for :');
PIPE ROW('BIND_MISMATCH,USER_BIND_PEEK_MISMATCH,BIND_UACS_DIFF and');
PIPE ROW('BIND_EQUIV_FAILURE (Mislabled as ROW_LEVEL_SEC_MISMATCH BY bug 6964441 in 11gR1)');
PIPE ROW('');
declare
v_position num_arr;
v_maxlen num_arr;
v_minlen num_arr;
v_dtype num_arr;
v_prec num_arr;
v_scale num_arr;
v_n num_arr;
begin
v_query:='select position,min(max_length),max(max_length),datatype,precision,scale,count(*) n'
||' from v$sql_bind_capture where sql_id=:v_sql_id'
||' group by sql_id,position,datatype,precision,scale'
||' order by sql_id,position,datatype,precision,scale';
EXECUTE IMMEDIATE v_query
bulk collect into v_position, v_minlen, v_maxlen , v_dtype ,v_prec ,v_scale , v_n
using v_sql_id;
PIPE ROW('from v$sql_bind_capture');
PIPE ROW('COUNT(*) POSITION MIN(MAX_LENGTH) MAX(MAX_LENGTH) DATATYPE (PRECISION,SCALE)');
PIPE ROW('======== ======== =============== =============== ======== ================');
for c in 1 .. v_position.count loop
PIPE ROW( to_char(v_n(c),'9999999')||' '||to_char(v_position(c),'9999999')||' '|| to_char(v_minlen(c),'99999999999999')
||' '|| to_char(v_maxlen(c),'99999999999999')
||' '|| to_char(v_dtype(c),'9999999')||' ('|| v_prec(c)||','||v_scale(c)||')' );
end loop;
if v_version like '11%' then
v_query:='select sum(decode(IS_OBSOLETE,''Y'', 1, 0)),sum(decode(IS_BIND_SENSITIVE ,''Y'',1, 0))'
||',sum(decode(IS_BIND_AWARE,''Y'',1,0)),sum(decode(IS_SHAREABLE,''Y'',1,0))'
||' from v$sql where sql_id = :v_sql_id';
EXECUTE IMMEDIATE v_query
bulk collect into v_position, v_minlen, v_maxlen , v_dtype
using v_sql_id;
PIPE ROW('');
PIPE ROW('SUM(DECODE(column,Y, 1, 0) FROM V$SQL');
PIPE ROW('IS_OBSOLETE IS_BIND_SENSITIVE IS_BIND_AWARE IS_SHAREABLE');
PIPE ROW('=========== ================= ============= ============');
for c in 1 .. v_position.count loop
PIPE ROW(to_char(v_position(c),'9999999999')||' '|| to_char(v_minlen(c),'9999999999999999')
||' '|| to_char(v_maxlen(c),'999999999999')
||' '|| to_char(v_dtype(c),'99999999999'));
end loop;
end if;
end;
end if;
end if;
elsif v_colname(i) ='OPTIMIZER_MODE_MISMATCH' then
for c in (select OPTIMIZER_MODE,count(*) n from v$sql where hash_value=v_hash group by OPTIMIZER_MODE) loop
PIPE ROW(c.n||' versions with '||c.OPTIMIZER_MODE);
end loop;
elsif v_colname(i) ='OPTIMIZER_MISMATCH' then
if v_version like '9%' then
PIPE ROW('No details available for '||v_version);
else
declare
v_param vc_arr;
v_value vc_arr;
v_n num_arr;
begin
v_query:='select o.NAME,o.VALUE ,count(*) n '
||'from V$SQL_OPTIMIZER_ENV o,sql_shared_cursor s '
||'where ISDEFAULT=''NO'' '
||' and OPTIMIZER_MISMATCH=''Y'' '
||' and s.sql_id=:v_sql_id '
||' and o.sql_id=s.sql_id '
||' and o.CHILD_ADDRESS=s.CHILD_ADDRESS '
||' group by o.NAME,o.VALUE ';
EXECUTE IMMEDIATE v_query
bulk collect into v_param,v_value,v_n using v_sql_id ;
for c in 1 .. v_n.count loop
PIPE ROW(v_n(c)||' versions with '||v_param(c)||' = '||v_value(c));
end loop;
end;
end if;
elsif v_colname(i) ='AUTH_CHECK_MISMATCH' then
declare
v_pusr num_arr;
v_pschid num_arr;
v_pschname vc_arr;
v_n num_arr;
begin
if v_version like '9%' then
v_query:='select PARSING_USER_ID, PARSING_SCHEMA_ID, ''n/a'' ,count(*) n from v$sql '
||v_sql_where
||' group by PARSING_USER_ID, PARSING_SCHEMA_ID,''n/a''';
else
v_query:='select PARSING_USER_ID, PARSING_SCHEMA_ID, PARSING_SCHEMA_NAME ,count(*) n from v$sql '
||v_sql_where
||' group by PARSING_USER_ID, PARSING_SCHEMA_ID, PARSING_SCHEMA_NAME';
end if;
EXECUTE IMMEDIATE v_query
bulk collect into v_pusr,v_pschid,v_pschname,v_n;
PIPE ROW(' # of Ver PARSING_USER_ID PARSING_SCHEMA_ID PARSING_SCHEMA_NAME');
PIPE ROW('========== =============== ================= ===================');
for c in 1 .. v_n.count loop
PIPE ROW(to_char(v_n(c),'999999999')|| TO_CHAR(v_pusr(c),'9999999999999999')|| to_char(v_pschid(c),'99999999999999999')||' '||v_pschname(c));
end loop;
end;
elsif v_colname(i) = 'TRANSLATION_MISMATCH' then
declare
v_objn num_arr;
v_objow vc_arr;
v_objnm vc_arr;
begin
v_query:='select distinct p.OBJECT#,p.OBJECT_OWNER,p.OBJECT_NAME'
||' from (select OBJECT_NAME ,count(distinct object#) n from v$sql_plan '
||v_sql_where
||' and object_name is not null group by OBJECT_NAME ) d'
||' ,v$sql_plan p where d.object_name=p.object_name and d.n>1';
EXECUTE IMMEDIATE v_query
bulk collect into v_objn,v_objow,v_objnm;
If v_objn.count>0 then
PIPE ROW('Summary of objects probably causing TRANSLATION_MISMATCH');
PIPE ROW(' ');
PIPE ROW(' Object# Owner.Object_Name');
PIPE ROW('========= =================');
for c in 1 .. v_objn.count loop
PIPE ROW(to_char(v_objn(c),'99999999')||' '||v_objow(c)||'.'||v_objnm(c));
end loop;
else
PIPE ROW('No objects in the plans with same name and different owner were found.');
end if;
end;
else
PIPE ROW('No details available');
end if;
end if;
end loop;
debugme('cursortrace');
IF v_version not like '9%' then
PIPE ROW('####');
PIPE ROW('To further debug Ask Oracle Support for the appropiate level LLL.');
if v_version in ('10.2.0.1.0','10.2.0.2.0','10.2.0.3.0') THEN
PIPE ROW('and read note:457225.1 Cannot turn off Trace after setting CURSORTRACE EVENT');
end if;
PIPE ROW('alter session set events ');
PIPE ROW(' ''immediate trace name cursortrace address '||v_hash||', level LLL'';');
PIPE ROW('To turn it off do use address 1, level 2147483648');
end if;
PIPE ROW('================================================================');
debugme('End of version_rpt');
return;
exception
when others then
PIPE ROW('Error :'||sqlerrm);
PIPE ROW('for Addr: '||v_addr||' Hash_Value: '||v_hash||' SQL_ID '||v_sql_id);
for i in 0 .. trunc(length(v_query)/64) loop
PIPE ROW(i||' '||substr(v_query,1+i*64,64));
end loop;
return;
end;
/
rem select b.* from v$sqlarea a ,table(version_rpt(a.sql_id,null,'Y')) b where loaded_versions >=100;
rem select * from table(debug_version_rpt);
Generate reports for all cursors with more than 100 versions using SQL_ID (10g and up)
SELECT b.*
FROM v$sqlarea a ,
TABLE(version_rpt(a.sql_id)) b
WHERE loaded_versions >=100;
Generate reports for all cursors with more than 100 versions using HASH_VALUE
SELECT b.*
FROM v$sqlarea a ,
TABLE(version_rpt(NULL,a.hash_value)) b
WHERE loaded_versions>=100;
Generate the report for cursor with sql_id cyzznbykb509s
SELECT * FROM TABLE(version_rpt('cyzznbykb509s'));
SAMPLE OUTPUT
Version Count Report Version 3.2.2 -- Today's Date 25-jul-13 11:50
RDBMS Version :11.2.0.3.0 Host: XXXXXXXXXXXXXXXXXXXX Instance 1 : XXXXXXXXXX
==================================================================
Addr: 00000003D8B6A570 Hash_Value: 3993603298 SQL_ID 8swypbbr0m372
Sharable_Mem: 208913 bytes Parses: 477
Stmt:
0 select order#,columns,types from access$ where d_obj#=:1
1
Versions Summary
----------------
OPTIMIZER_MISMATCH :10
BIND_MISMATCH :1
LANGUAGE_MISMATCH :1
OPTIMIZER_MODE_MISMATCH :3
PX_MISMATCH :2
Total Versions:10
~
Plan Hash Value Summary
-----------------------
Plan Hash Value Count
=============== =====
872636971 11
0 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Details for OPTIMIZER_MISMATCH :
1 versions with is_recur_flags = 167
2 versions with is_recur_flags = 161
9 versions with _pga_max_size = 614400 KB
7 versions with optimizer_mode = choose
3 versions with is_recur_flags = 35
7 versions with hash_area_size = 10485760
1 versions with optimizer_mode = rule
2 versions with advanced_queuing_internal_cursor = 1
2 versions with is_recur_flags = 163
1 versions with parallel_execution_enabled = false
1 versions with _pga_max_size = 204800 KB
10 versions with _optimizer_order_by_elimination_enabled = false
2 versions with is_recur_flags = 39
1 versions with hash_area_size = 2000000
1 versions with sort_area_size = 1000000
8 versions with _db_file_optimizer_read_count = 128
10 versions with _optimizer_cost_based_transformation = on
1 versions with parallel_threads_per_cpu = 4
1 versions with parallel_max_degree = 16
1 versions with _parallel_syspls_obey_force = false
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Details for BIND_MISMATCH :
Consolidated details for :
BIND_MISMATCH,USER_BIND_PEEK_MISMATCH,BIND_UACS_DIFF and
BIND_EQUIV_FAILURE (Mislabled as ROW_LEVEL_SEC_MISMATCH BY bug 6964441 in 11gR1)
from v$sql_bind_capture
COUNT(*) POSITION MIN(MAX_LENGTH) MAX(MAX_LENGTH) DATATYPE (PRECISION,SCALE)
======== ======== =============== =============== ======== ================
11 1 22 22 2 (,)
SUM(DECODE(column,Y, 1, 0) FROM V$SQL
IS_OBSOLETE IS_BIND_SENSITIVE IS_BIND_AWARE IS_SHAREABLE
=========== ================= ============= ============
0 0 0 9
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Details for LANGUAGE_MISMATCH :
No details available
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Details for OPTIMIZER_MODE_MISMATCH :
1 versions with RULE
9 versions with CHOOSE
2 versions with ALL_ROWS
~~~~~~~~~~~~~~~~~~~~~~~~~
Details for PX_MISMATCH :
No details available
####
To further debug Ask Oracle Support for the appropiate level LLL.
alter session set events 'immediate trace name cursortrace address 3993603298, level LLL';
To turn it off do use address 1, level 2147483648
================================================================
84 rows selected.
