Managing statistics for object collections used as table types in SQL

Hi All,
Is there a way to manage statistics for collections used as table types in SQL.
Below is my test case
Oracle Version :
SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE    11.2.0.3.0      Production
TNS for IBM/AIX RISC System/6000: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
SQL> Original Query :
SELECT
     9999,
     tbl_typ.FILE_ID,
     tf.FILE_NM ,
     tf.MIME_TYPE ,
     dbms_lob.getlength(tfd.FILE_DATA)
FROM
     TG_FILE tf,
     TG_FILE_DATA tfd,
          SELECT
          FROM
               TABLE
                    SELECT
                         CAST(TABLE_ESC_ATTACH(OBJ_ESC_ATTACH( 9999, 99991, 'file1.png', NULL, NULL, NULL),
                         OBJ_ESC_ATTACH( 9999, 99992, 'file2.png', NULL, NULL, NULL)) AS TABLE_ESC_ATTACH)
                    FROM
                         dual
     )     tbl_typ
WHERE
     tf.FILE_ID     = tfd.FILE_ID
AND tf.FILE_ID = tbl_typ.FILE_ID
AND tfd.FILE_ID = tbl_typ.FILE_ID;
Elapsed: 00:00:02.90
Execution Plan
Plan hash value: 3970072279
| Id | Operation                                | Name         | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT                         |              |     1 |   194 | 4567   (2)| 00:00:55 |
|* 1 | HASH JOIN                               |              |     1 |   194 | 4567   (2)| 00:00:55 |
|* 2 |   HASH JOIN                              |              | 8168 |   287K|   695   (3)| 00:00:09 |
|   3 |    VIEW                                  |              | 8168 |   103K|    29   (0)| 00:00:01 |
|   4 |     COLLECTION ITERATOR CONSTRUCTOR FETCH|              | 8168 | 16336 |    29   (0)| 00:00:01 |
|   5 |      FAST DUAL                           |              |     1 |       |     2   (0)| 00:00:01 |
|   6 |    TABLE ACCESS FULL                     | TG_FILE      |   565K|    12M|   659   (2)| 00:00:08 |
|   7 |   TABLE ACCESS FULL                      | TG_FILE_DATA |   852K|   128M| 3863   (1)| 00:00:47 |
Predicate Information (identified by operation id):
   1 - access("TF"."FILE_ID"="TFD"."FILE_ID" AND "TFD"."FILE_ID"="TBL_TYP"."FILE_ID")
   2 - access("TF"."FILE_ID"="TBL_TYP"."FILE_ID")
Statistics
          7 recursive calls
          0 db block gets
      16783 consistent gets
      16779 physical reads
          0 redo size
        916 bytes sent via SQL*Net to client
        524 bytes received via SQL*Net from client
          2 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
          2 rows processed Indexes are present in both the tables ( TG_FILE, TG_FILE_DATA ) on column FILE_ID.
select
     index_name,blevel,leaf_blocks,DISTINCT_KEYS,clustering_factor,num_rows,sample_size
from
     all_indexes
where table_name in ('TG_FILE','TG_FILE_DATA');
INDEX_NAME                     BLEVEL LEAF_BLOCKS DISTINCT_KEYS CLUSTERING_FACTOR     NUM_ROWS SAMPLE_SIZE
TG_FILE_PK                          2        2160        552842             21401       552842      285428
TG_FILE_DATA_PK                     2        3544        852297             61437       852297      852297 Ideally the view should have used NESTED LOOP, to use the indexes since the no. of rows coming from object collection is only 2.
But it is taking default as 8168, leading to HASH join between the tables..leading to FULL TABLE access.
So my question is, is there any way by which I can change the statistics while using collections in SQL ?
I can use hints to use indexes but planning to avoid it as of now. Currently the time shown in explain plan is not accurate
Modified query with hints :
SELECT
    /*+ index(tf TG_FILE_PK ) index(tfd TG_FILE_DATA_PK) */
    9999,
    tbl_typ.FILE_ID,
    tf.FILE_NM ,
    tf.MIME_TYPE ,
    dbms_lob.getlength(tfd.FILE_DATA)
FROM
    TG_FILE tf,
    TG_FILE_DATA tfd,
        SELECT
        FROM
            TABLE
                    SELECT
                         CAST(TABLE_ESC_ATTACH(OBJ_ESC_ATTACH( 9999, 99991, 'file1.png', NULL, NULL, NULL),
                         OBJ_ESC_ATTACH( 9999, 99992, 'file2.png', NULL, NULL, NULL)) AS TABLE_ESC_ATTACH)
                    FROM
                         dual
    tbl_typ
WHERE
    tf.FILE_ID     = tfd.FILE_ID
AND tf.FILE_ID = tbl_typ.FILE_ID
AND tfd.FILE_ID = tbl_typ.FILE_ID;
Elapsed: 00:00:00.01
Execution Plan
Plan hash value: 1670128954
| Id | Operation                                 | Name            | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT                          |                 |     1 |   194 | 29978   (1)| 00:06:00 |
|   1 | NESTED LOOPS                             |                 |       |       |            |          |
|   2 |   NESTED LOOPS                            |                 |     1 |   194 | 29978   (1)| 00:06:00 |
|   3 |    NESTED LOOPS                           |                 | 8168 | 1363K| 16379   (1)| 00:03:17 |
|   4 |     VIEW                                  |                 | 8168 |   103K|    29   (0)| 00:00:01 |
|   5 |      COLLECTION ITERATOR CONSTRUCTOR FETCH|                 | 8168 | 16336 |    29   (0)| 00:00:01 |
|   6 |       FAST DUAL                           |                 |     1 |       |     2   (0)| 00:00:01 |
|   7 |     TABLE ACCESS BY INDEX ROWID           | TG_FILE_DATA    |     1 |   158 |     2   (0)| 00:00:01 |
|* 8 |      INDEX UNIQUE SCAN                    | TG_FILE_DATA_PK |     1 |       |     1   (0)| 00:00:01 |
|* 9 |    INDEX UNIQUE SCAN                      | TG_FILE_PK      |     1 |       |     1   (0)| 00:00:01 |
| 10 |   TABLE ACCESS BY INDEX ROWID             | TG_FILE         |     1 |    23 |     2   (0)| 00:00:01 |
Predicate Information (identified by operation id):
   8 - access("TFD"."FILE_ID"="TBL_TYP"."FILE_ID")
   9 - access("TF"."FILE_ID"="TBL_TYP"."FILE_ID")
       filter("TF"."FILE_ID"="TFD"."FILE_ID")
Statistics
          0 recursive calls
          0 db block gets
         16 consistent gets
          8 physical reads
          0 redo size
        916 bytes sent via SQL*Net to client
        524 bytes received via SQL*Net from client
          2 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
          2 rows processed
Thanks,
B

Thanks Tubby,
While searching I had found out that we can use CARDINALITY hint to set statistics for TABLE funtion.
But I preferred not to say, as it is currently undocumented hint. I now think I should have mentioned it while posting for the first time
http://www.oracle-developer.net/display.php?id=427
If we go across the document, it has mentioned in total 3 hints to set statistics :
1) CARDINALITY (Undocumented)
2) OPT_ESTIMATE ( Undocumented )
3) DYNAMIC_SAMPLING ( Documented )
4) Extensible Optimiser
Tried it out with different hints and it is working as expected.
i.e. cardinality and opt_estimate are taking the default set value
But using dynamic_sampling hint provides the most correct estimate of the rows ( which is 2 in this particular case )
With CARDINALITY hint
SELECT
    /*+ cardinality( e, 5) */*
FROM
     TABLE
          SELECT
               CAST(TABLE_ESC_ATTACH(OBJ_ESC_ATTACH( 9999, 99991, 'file1.png', NULL, NULL, NULL),
               OBJ_ESC_ATTACH( 9999, 99992, 'file2.png', NULL, NULL, NULL)) AS TABLE_ESC_ATTACH)
          FROM
               dual
     ) e ;
Elapsed: 00:00:00.00
Execution Plan
Plan hash value: 1467416936
| Id | Operation                             | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT                      |      |     5 |    10 |    29   (0)| 00:00:01 |
|   1 | COLLECTION ITERATOR CONSTRUCTOR FETCH|      |     5 |    10 |    29   (0)| 00:00:01 |
|   2 |   FAST DUAL                           |      |     1 |       |     2   (0)| 00:00:01 |
With OPT_ESTIMATE hint
SELECT
     /*+ opt_estimate(table, e, scale_rows=0.0006) */*
FROM
     TABLE
          SELECT
               CAST(TABLE_ESC_ATTACH(OBJ_ESC_ATTACH( 9999, 99991, 'file1.png', NULL, NULL, NULL),
               OBJ_ESC_ATTACH( 9999, 99992, 'file2.png', NULL, NULL, NULL)) AS TABLE_ESC_ATTACH)
          FROM
               dual
     ) e ;
Execution Plan
Plan hash value: 4043204977
| Id | Operation                              | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT                       |      |     5 |   485 |    29   (0)| 00:00:01 |
|   1 | VIEW                                  |      |     5 |   485 |    29   (0)| 00:00:01 |
|   2 |   COLLECTION ITERATOR CONSTRUCTOR FETCH|      |     5 |    10 |    29   (0)| 00:00:01 |
|   3 |    FAST DUAL                           |      |     1 |       |     2   (0)| 00:00:01 |
With DYNAMIC_SAMPLING hint
SELECT
    /*+ dynamic_sampling( e, 5) */*
FROM
     TABLE
          SELECT
               CAST(TABLE_ESC_ATTACH(OBJ_ESC_ATTACH( 9999, 99991, 'file1.png', NULL, NULL, NULL),
               OBJ_ESC_ATTACH( 9999, 99992, 'file2.png', NULL, NULL, NULL)) AS TABLE_ESC_ATTACH)
          FROM
               dual
     ) e ;
Elapsed: 00:00:00.00
Execution Plan
Plan hash value: 1467416936
| Id | Operation                             | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT                      |      |     2 |     4 |    11   (0)| 00:00:01 |
|   1 | COLLECTION ITERATOR CONSTRUCTOR FETCH|      |     2 |     4 |    11   (0)| 00:00:01 |
|   2 |   FAST DUAL                           |      |     1 |       |     2   (0)| 00:00:01 |
Note
   - dynamic sampling used for this statement (level=2)I will be testing the last option "Extensible Optimizer" and put my findings here .
I hope oracle in future releases, improve the statistics gathering for collections which can be used in DML and not just use the default block size.
By the way, are you aware why it uses the default block size ? Is it because it is the smallest granular unit which oracle provides ?
Regards,
B

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http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/b0b25093-b548-2e10-0cba-fcac7890585f?QuickLink=index&overridelayout=true
Customer exit for text variables
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes/sdn_oss_bw_bex/~form/handler%7b5f4150503d3030323030363832353030303030303031393732265f4556454e543d444953504c4159265f4e4e554d3d343131313235%7d
http://help.sap.com/saphelp_nw04/helpdata/en/61/579b3c494d8e15e10000000a114084/content.htm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes/sdn_oss_bw_bex/~form/handler%7b5f4150503d3030323030363832353030303030303031393732265f4556454e543d444953504c4159265f4e4e554d3d313535373530%7d
Thanks and regards
Kiran

Write in table type pl sql

Hi,
i want to read/write from/to a table type in pl sql procedure.
I have this:
in the declaration of package I have:
......more code more code...
type type1 is record ( field1 varchar2(4000), field2 varchar2(4000), filed3 number);
rec type1;
type table_example is table of rec%type index by binary_integer;
...more code more code...
In the body of my package i have a procedure in which i want to write/read into/from table_ex (table_ex is a variable of type table_example;)
How could i do?
Could you all post some code of example (in particular i want to update fields of table_ex)?
Please help.
Thanks

Hi,
I think you need some package for manage simple task againts your table. It's called package API. I created a package API for example for you (this package it's only a little example):
Example table:
-- Create table
create table TEST
AD_TEST NUMBER(10) not null,
NM_TEST VARCHAR2(30) not null
-- Create/Recreate primary, unique and foreign key constraints
alter table TEST
add constraint PK_TEST_1 primary key (AD_TEST)
using index;Sequence...
-- Create sequence
create sequence SEQ_TEST
minvalue 1
maxvalue 99999999999999999999
start with 1
increment by 1
cache 20;Package API for table test
CREATE OR REPLACE PACKAGE pack_api_test IS
   TYPE t_ref_cur IS REF CURSOR;
   PROCEDURE proc_ins_test(p_ad_test OUT test.ad_test%TYPE,
                           p_nm_test IN test.nm_test%TYPE,
                           p_return OUT NUMBER,
                           p_message OUT VARCHAR2);
   PROCEDURE proc_upd_test(p_ad_test IN test.ad_test%TYPE,
                           p_nm_test IN test.nm_test%TYPE,
                           p_return OUT NUMBER,
                           p_message OUT VARCHAR2);
   PROCEDURE proc_sch_test(p_rec_test OUT test%ROWTYPE,
                           p_ad_test IN test.ad_test%TYPE,
                           p_return   OUT NUMBER,
                           p_message OUT VARCHAR2);
   PROCEDURE proc_lis_test(p_ad_test IN test.ad_test%TYPE,
                           p_nm_test IN test.nm_test%TYPE,
                           p_query   OUT t_ref_cur,
                           p_return OUT NUMBER,
                           p_message OUT VARCHAR2);
END pack_api_test;
CREATE OR REPLACE PACKAGE BODY pack_api_test IS
   -- Package constants
   P_RETURN_SUCCESFUL CONSTANT NUMBER(4) := 0;
   P_RETURN_ERROR      CONSTANT NUMBER(4) := 1;
   P_MESSAGE_SUCCESFUL CONSTANT VARCHAR2(100) := 'Succesful';
   PROCEDURE proc_ins_test(p_ad_test OUT test.ad_test%TYPE,
                           p_nm_test IN test.nm_test%TYPE,
                           p_return OUT NUMBER,
                           p_message OUT VARCHAR2) IS
   BEGIN
      p_return := P_RETURN_SUCCESFUL;
      p_message := P_MESSAGE_SUCCESFUL;
      INSERT INTO test a
         (a.ad_test,
          a.nm_test)
      VALUES
         (seq_test.NEXTVAL,
          p_nm_test)
      RETURNING ad_test INTO p_ad_test;
   EXCEPTION
      WHEN DUP_VAL_ON_INDEX THEN
         p_return := P_RETURN_ERROR;
         p_message := 'Record already exists';
      WHEN OTHERS THEN
         p_return := P_RETURN_ERROR;
         p_message := SQLERRM;
   END proc_ins_test;
   PROCEDURE proc_upd_test(p_ad_test IN test.ad_test%TYPE,
                           p_nm_test IN test.nm_test%TYPE,
                           p_return OUT NUMBER,
                           p_message OUT VARCHAR2) IS
      generic_error EXCEPTION;
      data_not_updated_error EXCEPTION;
      v_rec_test test%ROWTYPE;
   BEGIN
      p_return := P_RETURN_SUCCESFUL;
      p_message := P_MESSAGE_SUCCESFUL;
      proc_sch_test(p_rec_test => v_rec_test,
                    p_ad_test => p_ad_test,
                    p_return   => p_return,
                    p_message => p_message);
      IF p_return <> 0 THEN
         RAISE generic_error;
      END IF;
      UPDATE test a SET a.nm_test = p_nm_test WHERE ad_test = p_ad_test;
      IF (SQL%ROWCOUNT = 0) THEN
         RAISE data_not_updated_error;
      END IF;
   EXCEPTION
      WHEN generic_error THEN
         NULL;
      WHEN data_not_updated_error THEN
         p_return := P_RETURN_ERROR;
         p_message := 'Data not updated';
      WHEN OTHERS THEN
         p_return := P_RETURN_ERROR;
         p_message := SQLERRM;
   END proc_upd_test;
   PROCEDURE proc_sch_test(p_rec_test OUT test%ROWTYPE,
                           p_ad_test IN test.ad_test%TYPE,
                           p_return   OUT NUMBER,
                           p_message OUT VARCHAR2) IS
   BEGIN
      p_return := P_RETURN_SUCCESFUL;
      p_message := P_MESSAGE_SUCCESFUL;
      SELECT * INTO p_rec_test FROM test a WHERE a.ad_test = p_ad_test;
   EXCEPTION
      WHEN NO_DATA_FOUND THEN
         p_return := P_RETURN_ERROR;
         p_message := 'Record doesn''t exist';
      WHEN OTHERS THEN
         p_return := P_RETURN_ERROR;
         p_message := SQLERRM;
   END proc_sch_test;
   PROCEDURE proc_lis_test(p_ad_test IN test.ad_test%TYPE,
                           p_nm_test IN test.nm_test%TYPE,
                           p_query   OUT t_ref_cur,
                           p_return OUT NUMBER,
                           p_message OUT VARCHAR2) IS
      v_ds_sql VARCHAR2(4000);
   BEGIN
      p_return := P_RETURN_SUCCESFUL;
      p_message := P_MESSAGE_SUCCESFUL;
      v_ds_sql := v_ds_sql || 'SELECT * ';
      v_ds_sql := v_ds_sql || 'FROM test ';
      v_ds_sql := v_ds_sql || 'WHERE 1 = 1 ';
      IF (p_ad_test IS NOT NULL) THEN
         v_ds_sql := v_ds_sql || 'AND ad_test = ' || p_ad_test || ' ';
      END IF;
      IF (p_nm_test IS NOT NULL) THEN
         v_ds_sql := v_ds_sql || 'AND nm_test like ''' || p_nm_test || ''' ';
      END IF;
      OPEN p_query FOR v_ds_sql;
   EXCEPTION
      WHEN OTHERS THEN
         p_return := P_RETURN_ERROR;
         p_message := SQLERRM;
   END proc_lis_test;
END pack_api_test;
/Regards,

Authorisation check for Object F_BL_BANK using transaction F110

Hi
Can you help me with transaction F110. The object F_BL_BANK has been linked on SU24 to transaction F110. It has also been set for Check/maintain.
There is no authorisation check for this object using F110.
How can we resolve the issue.

Hi
We are on 4.6
I linked the object but the program is not doing an authority check The F_BL_BANK object has the following linked to it
. .     . Check          F_BKPF_BUP Accounting Document: Authorization for Posting Periods
. . .     Check/maintain F_BL_BANK Authorization for House Banks and Payment Methods
. .     . Check          F_KNA1_APP Customer: Application Authorization
. .     . Check          F_KNA1_BED Customer: Account Authorization
. .     . Check          F_KNA1_BUK Customer: Authorization for Company Codes
. .     . Check          F_KNA1_GEN Customer: Central Data
. .     . Check          F_KNA1_GRP Customer: Account Group Authorization
. .     . Check          F_LFA1_APP Vendor: Application Authorization
. .     . Check          F_LFA1_BEK Vendor: Account Authorization
. .     . Check          F_LFA1_BUK Vendor: Authorization for Company Codes
. .     . Check          F_LFA1_GEN Vendor: Central Data
. .     . Check          F_LFA1_GRP Vendor: Account Group Authorization
. .     . Check          F_PAYR_BUK Check Management: Action Authorization for Company Codes
. . .     Check/maintain F_REGU_BUK Automatic Payment: Activity Authorization for Company Code
. . .     Check/maintain F_REGU_KOA Automatic Payment: Activity Authorization for Account Type
. .     . Check          PLOG       Personnel Planning
. .     . Check          P_ABAP     HR: Reporting
Ther are more objects but these are the key ones The object also has a custom object in that was build by SAP called ZLSCH      Payment method We want the system to do a check on the payment method

Error while saving for Objective setting using tcode phap_catalog_pa.

while executing tcode phap_catalog_pa, i get the error "Table HRPAD605 is not part of customizing Object PDST T.
However, when I proceeded further to use the catalog, I am not able to make any changes and the error message i get is "Data was not saved Message no. HRHAP00_TEMPLATE003".
I also executed the solution mentioned in previous threads on the same problem i.e. run the program "RHSOBJCH" and executed the adjusting entries but to no avail.
I have SAP_ALL authorization profile assigned to me.
Would be really helpful if someone could share their insights on solutions to rectify this problem.
Regards,
Kalpana

Hi Kalpana,
Check the configuration whether you have done it correctly or not.
And try to upload one template which is existing on the system. Download it and upload it as a template.
If the problem is still there then it will be some configuration issues.
Thanks & Regards,
Ganesh R K

Managing statistics for object collections used as table types in SQL

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