How to handle LOB datatypes in ODI 11.1.1.6 or Later

Hi All,
I'm getting "table or view doesn't exist" at load step when trying to read data from Oracle table which has CLOB data. I have tried both “LKM SQL TO SQL” and “LKM SQL TO ORACLE” but it’s giving same error at load step.
Is there any specific KM’s for LOB data types in ODI 11g ?If yes, How can I get those KM’s.We are using licensed version of ODI 11g
Appreciate if anybody share their ideas regarding this issue.
Thanks in Advance!!
ODI-1228: Task SrcSet0 (Loading) fails on the target ORACLE connection EDW_SERVER.
Caused By: java.sql.SQLSyntaxErrorException: ORA-00942: table or view does not exist

From the message it seems that the problem is in the target side statement rather then while reading source data. Can you check if the target query is correct in the failing task?
What is the source and target query for the failing task?

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제품 : PRECOMPILERS
작성날짜 : 2001-07-12
PRO*C에서 EMBEDDED SQL STATEMENTS를 사용해서 LOB DATATYPES에 접근하는 예제
==========================================================================
Pro*C에서 LOB를 사용하는 방법에는 다음 3가지가 있습니다.
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(3) Embedded SQL statements을 이용하는 방법
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INTO :dst [AT :dst_offset];
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INTO :buffer [WITH LENGTH :buffer];
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:amt FROM :buffer [WITH LENGTH :buflen] INTO :dst [AT :dst_offset];
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EXEC SQL LOB DESCRIBE :src GET attribute1 [{, attributeN}]
INTO :hv1 [[INDICATOR] :hv_ind1] [{, :hvN [[INDICATOR] :hv_indN] }];
Attributes can be any of the following:
CHUNKSIZE: chunk size used to store the LOB value
DIRECTORY: name of the DIRECTORY alias for BFILE
FILEEXISTS: whether BFILE exists or not
FILENAME: BFILE name
ISOPEN: whether BFILE with this locate is OPEN or not
ISTEMPORARY: whether specified LOB is temporary or not
LENGTH: Length of BLOBs and BFILE in bytes, CLOBs and NCLOBs
in characters.
다음은 LOB를 사용하는 sample을 실행하는 방법입니다.
1. 먼저 scott user에서 다음을 실행합니다. (create directory를 할 수 있는 권한이
있어야 하며, directory는 사용하시는 환경에 맞도록 수정해 주십시요.)
drop table lob_table;
create table lob_table (key number, a_blob BLOB, a_clob CLOB);
drop table lobdemo;
create table lobdemo (key number, a_blob BLOB, a_bfile BFILE);
drop directory dir_alias;
create directory dir_alias as '/users/app/oracle/product/8.1.7/precomp/demo/proc';
insert into lob_table values(1, utl_raw.cast_to_raw('1111111111'), 'aaaaaaaa');
commit;
2. 다음 코드는 out.gif 파일을 위에서 지정한 directory에 만들고 lob_table의
내용에 들어있는 BLOB의 내용을 저장하는 sample입니다.
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sqlda.h>
#include <sqlcpr.h>
/* Define constants for VARCHAR lengths. */
#define UNAME_LEN 20
#define PWD_LEN 40
/* Declare variables. No declare section is
needed if MODE=ORACLE. */
VARCHAR username[UNAME_LEN]; /* VARCHAR is an Oracle-supplied struct */
varchar password[PWD_LEN]; /* varchar can be in lower case also. */
/* The following 3 lines avoid inclusion of oci.h during precompilation
oci.h is needed only during compilation to resolve calls generated by
the precompiler
#ifndef ORA_PROC
#include <oci.h>
#endif
#include <sqlca.h>
OCIBlobLocator *blob;
OCIClobLocator *clob;
FILE *fp;
unsigned int amt, offset = 1;
#define MAXBUFLEN 5000
unsigned char buffer[MAXBUFLEN];
EXEC SQL VAR buffer IS RAW(MAXBUFLEN);
/* Declare error handling function. */
void sql_error(msg)
char *msg;
char err_msg[128];
size_t buf_len, msg_len;
EXEC SQL WHENEVER SQLERROR CONTINUE;
printf("\n%s\n", msg);
buf_len = sizeof (err_msg);
sqlglm(err_msg, &buf_len, &msg_len);
printf("%.*s\n", msg_len, err_msg);
EXEC SQL ROLLBACK RELEASE;
exit(EXIT_FAILURE);
void main()
/* Connect to ORACLE--
* Copy the username into the VARCHAR.
strncpy((char *) username.arr, "SCOTT", UNAME_LEN);
/* Set the length component of the VARCHAR. */
username.len =
(unsigned short) strlen((char *) username.arr);
/* Copy the password. */
strncpy((char *) password.arr, "TIGER", PWD_LEN);
password.len =
(unsigned short) strlen((char *) password.arr);
/* Register sql_error() as the error handler. */
EXEC SQL WHENEVER SQLERROR DO sql_error("ORACLE error--\n");
/* Connect to ORACLE. Program will call sql_error()
* if an error occurs when connecting to the default database.
EXEC SQL CONNECT :username IDENTIFIED BY :password;
printf("\nConnected to ORACLE as user: %s\n", username.arr);
/* Allocate the LOB host variables and select the BLOB value */
EXEC SQL ALLOCATE :blob;
EXEC SQL ALLOCATE :clob;
EXEC SQL SELECT a_blob INTO :blob FROM lob_table WHERE key=1;
/* Open external file to which BLOB value should be written */
fp = fopen("out.gif", "w");
EXEC SQL WHENEVER NOT FOUND GOTO end_of_lob;
amt = 5000;
EXEC SQL LOB READ :amt FROM :blob AT :offset INTO :buffer;
fwrite(buffer, MAXBUFLEN, 1, fp);
EXEC SQL WHENEVER NOT FOUND DO break;
/* Use polling method to continue reading the next pieces */
while (TRUE)
EXEC SQL LOB READ :amt FROM :blob INTO :buffer;
fwrite(buffer, MAXBUFLEN, 1, fp);
end_of_lob:
fwrite(buffer, amt, 1, fp);
printf("\nG'day.\n\n\n");
/* Disconnect from ORACLE. */
EXEC SQL ROLLBACK WORK RELEASE;
exit(EXIT_SUCCESS);
3. 다음 코드는 위에서 만든 out.gif file을 lobdemo에 저장하는 sample입니다.
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sqlda.h>
#include <sqlcpr.h>
/* Define constants for VARCHAR lengths. */
#define UNAME_LEN 20
#define PWD_LEN 40
/* Declare variables. No declare section is
needed if MODE=ORACLE. */
VARCHAR username[UNAME_LEN]; /* VARCHAR is an Oracle-supplied struct */
varchar password[PWD_LEN]; /* varchar can be in lower case also. */
/* The following 3 lines avoid inclusion of oci.h during precompilation
oci.h is needed only during compilation to resolve call generated by
the precompiler
#ifndef ORA_PROC
#include <oci.h>
#endif
#include <sqlca.h>
OCIBlobLocator *blob;
OCIBFileLocator *bfile;
char *alias = "DIR_ALIAS";
char *filename = "out.gif";
unsigned int amt = 50;
unsigned int filelen;
/* Declare error handling function. */
void sql_error(msg)
char *msg;
char err_msg[128];
size_t buf_len, msg_len;
EXEC SQL WHENEVER SQLERROR CONTINUE;
printf("\n%s\n", msg);
buf_len = sizeof (err_msg);
sqlglm(err_msg, &buf_len, &msg_len);
printf("%.*s\n", msg_len, err_msg);
EXEC SQL ROLLBACK RELEASE;
exit(EXIT_FAILURE);
void main()
/* Connect to ORACLE--
* Copy the username into the VARCHAR.
strncpy((char *) username.arr, "SCOTT", UNAME_LEN);
/* Set the length component of the VARCHAR. */
username.len =
(unsigned short) strlen((char *) username.arr);
/* Copy the password. */
strncpy((char *) password.arr, "TIGER", PWD_LEN);
password.len =
(unsigned short) strlen((char *) password.arr);
/* Register sql_error() as the error handler. */
EXEC SQL WHENEVER SQLERROR DO sql_error("ORACLE error--\n");
/* Connect to ORACLE. Program will call sql_error()
* if an error occurs when connecting to the default database.
EXEC SQL CONNECT :username IDENTIFIED BY :password;
printf("\nConnected to ORACLE as user: %s\n", username.arr);
/* Allocate the LOB locator */
EXEC SQL ALLOCATE :blob;
EXEC SQL ALLOCATE :bfile;
/* Initialize the DIRECTORY alias of the BFILE and FILENAME */
EXEC SQL LOB FILE SET :bfile
DIRECTORY = :alias, FILENAME = :filename;
EXEC SQL INSERT INTO lobdemo values (1, EMPTY_BLOB(), :bfile);
EXEC SQL SELECT a_blob, a_bfile INTO :blob, :bfile FROM lobdemo
WHERE key = 1;
EXEC SQL LOB OPEN :bfile;
/* Get the BFILE length */
EXEC SQL LOB DESCRIBE :bfile
GET LENGTH INTO :filelen;
printf("File length is: %d\n", filelen);
amt = filelen;
/* Read BFILE and write to BLOB */
EXEC SQL LOB LOAD :amt FROM FILE :bfile INTO :blob;
EXEC SQL LOB CLOSE :bfile;
printf("\nG'day.\n\n\n");
/* Disconnect from ORACLE. */
EXEC SQL COMMIT WORK RELEASE;
exit(EXIT_SUCCESS);
4. 다음은 실행한 결과 입니다.
첫번째 sample :
Connected to ORACLE as user: SCOTT
G'day.
두번째 sample :
Connected to ORACLE as user: SCOTT
File length is: 10
G'day.

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CREATE OR REPLACE FUNCTION Get_RateALl(
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RETURN NUMBER
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     IF V_test is not null THEN
               RETURN V_test;
     ELSIF V_Client_Rate (NO_DATA_FOUND) THEN
-- when there is no row return, I need to go step2.
--Step2 Get the next level of rate
          select rate into V_test2
          from table2
          where AA = V_CBR_NO;
          RETURN V_test2;
     END IF;
EXCEPTION
WHEN NO_DATA_FOUND THEN
V_test2:= null;
          RETURN V_test2;
WHEN OTHERS THEN
     --If there is an error, return it
RETURN SQLERRM;
END Get_RateAll ;

I might do something like:
create or replace function get_rateall
(v_cbr_no in table1.aa%type)
return table1.rate%type
is
v_rate table1.rate%type;
begin
begin
    select rate into v_rate
      from table1
     where aa = v_cbr_no;
exception
    when no_data_found then
      select rate into v_rate
        from table2
       where aa = v_cbr_no;
end;
return v_rate;
exception
when others then
    raise;
end get_rateall;You would not be able to return SQLERRM because the return datatype of the function is number. I would not recommend returning SQLCODE because you will have no way of knowing the difference between a rate and an error code.

How To Handle Stale Stats Scenario.

hi ,
I am using Release 10.2.0.1.0 of Oracle. I am having a scenario in which i am getting poor execution plans due to stale stats , and how should i tackle the scenario. below is the part of my main query which deviates the execution path due to wrong cardinality estimation.
      My column c1 of table tab1 holds javatimestamp values i.e. its NUMBER datatype which points to a date and time component only. And we gather stats each weekend on this table tab1.
      below is my query:
      select /*+gather_plan_statistics*/* from tab1
      where c1 BETWEEN 1346300090668 AND 1346325539486    ;
Plan hash value: 3167980259
| Id | Operation                   | Name                    | Starts | E-Rows | A-Rows |   A-Time   | Buffers | Reads |
|   1 | TABLE ACCESS BY INDEX ROWID| tab1                    |      1 |   1    |    167K|00:01:13.72 |     158K| 12390 |
|* 2 |   INDEX RANGE SCAN          | IDX_N1                  |      1 |   1    |    167K|00:00:13.27 |   13880 |   1736 |
     Above shows a big gap in actual and estimated cardinality estimation, and its due to the fact that the HIGH_VALUE (1346203206173 points to 8/29/2012 1:20:06 AM) in DBA_TAB_COLUMN for     column C1 is well below the STARTRANGE(1346300090668 points to 8/30/2012 4:14:51 AM) and ENDRANGE(1346325539486 points to 8/30/2012 11:18:59 AM) of the BETWEEN clause.
     So even gathering stats daily on the table wont help me as because, in morning again it will require updated maxvalue for the column C1 for estimating proper, So how to handle this situation? Dont want to go with 'hint' , want to make the stats proper so that optimizer will automatically pick the right path.Edited by: 930254 on Aug 30, 2012 4:41 AM

930254 wrote:
hi ,
I am using Release 10.2.0.1.0 of Oracle. I am having a scenario in which i am getting poor execution plans due to stale stats , and how should i tackle the scenario. below is the part of my main query which deviates the execution path due to wrong cardinality estimation.
      My column c1 of table tab1 holds javatimestamp values i.e. its NUMBER datatype which points to a date and time component only. And we gather stats each weekend on this table tab1.
      below is my query:
      select /*+gather_plan_statistics*/* from tab1
      where c1 BETWEEN 1346300090668 AND 1346325539486    ;
Plan hash value: 3167980259
| Id | Operation                   | Name                    | Starts | E-Rows | A-Rows |   A-Time   | Buffers | Reads |
|   1 | TABLE ACCESS BY INDEX ROWID| tab1                    |      1 |   1    |    167K|00:01:13.72 |     158K| 12390 |
|* 2 |   INDEX RANGE SCAN          | IDX_N1                  |      1 |   1    |    167K|00:00:13.27 |   13880 |   1736 |
     Above shows a big gap in actual and estimated cardinality estimation, and its due to the fact that the HIGH_VALUE (1346203206173 points to 8/29/2012 1:20:06 AM) in DBA_TAB_COLUMN for     column C1 is well below the STARTRANGE(1346300090668 points to 8/30/2012 4:14:51 AM) and ENDRANGE(1346325539486 points to 8/30/2012 11:18:59 AM) of the BETWEEN clause.
     So even gathering stats daily on the table wont help me as because, in morning again it will require updated maxvalue for the column C1 for estimating proper, So how to handle this situation? Dont want to go with 'hint' , want to make the stats proper so that optimizer will automatically pick the right path.Edited by: 930254 on Aug 30, 2012 4:41 AMUm, refresh the stats on a regular basis?
Oracle 10 and later has a default job to do that. Runs at 2200 daily.
If you need an 'on demand' refresh, that's easy enough to set up.

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