Inserting oracle objects / collection using JDBC

Hi people,
I want to insert objects with collections(nested tables) into oracle database using my java JDBC. I believe there are two ways, one using strong types and the other as weak. I am using the weak types.
This is what I have got so far:
create or replace type town_ty as object(
name varchar2(20)
create or replace type country as object (
name varchar2(20),
towns town_ty
create table country_tab of country_ty;
Can any one kindly give or show me an example how to insert data into the above table using weak typed JDBC?
Thanks very much

Hi
You should find what you are looking for in the samples provided here http://www.oracle.com/technology/sample_code/tech/java/sqlj_jdbc/files/advanced/advanced.html.
HTH
Chris

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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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user4898687 wrote:
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THE SOLUTION
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: Hi Tina,
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I
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site.
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: : : Oracle Technology Network
: : : http://technet.oracle.com
: Oracle Technology Network
: http://technet.oracle.com
Oracle Technology Network
http://technet.oracle.com
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Hi,
Suppose, I have to send 5 records and from R/3
(using client Proxy) using XI and insert/update all these records in a database.
In case I want to update all the 5 records else mark it as fail and return the response synchronously to R/3, what should be my approach?
Can we do it using native sql querries, if yes could you plese tell me how to do so.
I have never used native sql queries.
Thanks in advance.
Regards
Pushkar

hi,
>>>>Can we do it using native sql querries, if yes could you plese tell me how to do so.
why don't use use standard jdbc adapter and standard jdbc document formats?
the sync jdbc call will return the number of affected /deleted rows
Regards,
michal

Inserting into two tables using JDBC Receiver Adapter

I've defined following type for Receiver JDBC to save data in two different tables
Name          Category     Type          Occurrence
ReceiverDB_DT     Complex Type
STATEMENT     Element                    1..unbounded
TABLE_NAME     Element                    1
ACTION          Attribute     xsd:string     required
TABLE          Element          xsd:string     1
ACCESS          Element          Table1_DT     1
STATEMENT2     Element                    1..unbounded
TABLE_NAME     Element                    1
ACTION          Attribute     xsd:string     required
TABLE          Element          xsd:string     1
ACCESS          Element          Table2_DT     1
When I send data of two tables, it is showing data for both the two tables in MONI of PI System, but ultimately it shows only one table's data in message monitoring payload.
what could be the problem?
Thanks,
-Haresh

It solved!!!
by just changing Occurrence only as rightly pointed by Ankesh
Name          Category     Type          Occurrence
ReceiverDB_DT     Complex Type
STATEMENT     Element                    1..unbounded
TABLE_NAME     Element                    1
ACTION          Attribute     xsd:string     required
TABLE          Element          xsd:string     1
ACCESS          Element          Table1_DT     1
STATEMENT2     Element                    1..unbounded
TABLE_NAME     Element                    1
ACTION          Attribute     xsd:string     required
TABLE          Element          xsd:string     1
ACCESS          Element          Table2_DT     1
Name          Category     Type          Occurrence
ReceiverDB_DT     Complex Type
STATEMENT     Element                    1
TABLE_NAME     Element                    1
ACTION          Attribute     xsd:string     required
TABLE          Element          xsd:string     1
ACCESS          Element          Table1_DT     1..unbounded
STATEMENT2     Element                    1
TABLE_NAME     Element                    1
ACTION          Attribute     xsd:string     required
TABLE          Element          xsd:string     1
ACCESS          Element          Table2_DT     1..unbounded
Thanks a lot ankesh

Empty CLOB field value from Oracle database using JDBC Sender

Hi All,
I am selecting a CLOB field from Oracle database table using JDBC Sender adapter and getting error "NullPointerException"
Seen SAP note 1283089 but its not applicable for my support pack PI 7.0 SP 12 and client dont want to upgrdate SP 17 right now.
I tried rpad(1,0)Column_Name funciton in JDBC select query but it selcting blank value for every record even those having some value for this CLOB field so not useful
Could anybody suggest possible way? client dont want to change anything at database side.
Thanks,
Dharamveer

What is the Oracle driver version installed? You might need to install 10.x driver if not already using it.

Inserting oracle objects / collection using JDBC

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