Pretreatment of an external table - table is empty at the end

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• Facing many problems on the creation of directory and an external Table

  Question:
  
  The strange thing is that if you look at the question 10-b page 3-41, it says:
  (page 3-41 "Oracle Database 10g SQL Fund. II Vol.1")
  
  Merge the data into the EMP_DATA table that is created in the lab last in the data in the table emp_hist. assume
  EMP_DATA external table data corresponds to the EMP_HIST of table, update the email column
  table EMP_HIST to match the row in the EMP_DATA table. If a row in the EMP_DATA table is not
  match, to be inserted in the tables of EMP_HIST lines are considered as corresponding whenever his first and
  family name are the same.
  
  For me, this issue is built wrong. First of all in the last lab we have not been asked to create EMP_DATA. Secondly, EMP_DATA is empty.
  Thirdly, this question asks us to merge into the table EMP_HIST while EMP_DATA is empty.
  
  Table EMP_HIST currently copied data from the employees table. Structure EMP_HIST:
  
  FIRST NAME VARCHAR2 (20)
  LAST_NAME NOT NULL VARCHAR2 (25)
  EMAIL NOT NULL VARCHAR2 (45)
  
  Anway, I did the merger as follows:
  
  merge into e emp_hist
  with the help of emp_data d
  on (e.first_name = d.first_name)
  When matched then
  game update
  Select = d.last_name,
  e.email = d.email
  When not matched then
  Insert values (d.first_name, d.last_name, d.email);
  
  I get this error:
  
  Error report:
  SQL error: ORA-29913: error in executing ODCIEXTTABLEOPEN legend
  ORA-29400: data cartridge error
  KUP-04040: file emp.dat in EMP_DIR not found
  ORA-06512: at "SYS." ORACLE_LOADER', line 19
  29913 00000 - "error in the execution of %s legend".
  * Cause: The execution of the specified legend caused an error.
  * Action: Examine the error messages take appropriate measures.
  
  On the other hand, I said I'm going to try this:
  
  merge into emp_data d
  using e emp_hist
  on (d.first_name = e.first_name)
  When matched then
  game update
  d.last_name = select,
  d.email = e.email
  When not matched then
  Insert values (e.first_name, select, e.email);
  
  I get this error because the external table is final once its creation is as far as I know:
  
  Error report:
  SQL error: ORA-30657: operation not supported on external organized table
  30657.0000 - "operation not supported on external-organized table".
  * Cause: User attempted on the operation on an external table which is
  not supported.
  * Action: Don't do that!
  
  **********************************
  
  I don't know what to do. I did my best, please help.
  
  Published by: user11164565 on July 27, 2009 02:43

  user11164565 wrote:
  NOTE: I did my best, I've done everything I can do, but the problem persists. Help, please

  I'll mention all the steps that I made it clear...

  I gave scott the following grants:

  grant create any directory Scott;
  grant read on the directory emp_dir to scott;

  -----------------------

  1. create a directory and its been created successfully:

  create or replace directory emp_dir
  like 'F:\emp_dir ';

  Then I made just to make sure that my directory is recognized the following:

  SELECT *.
  OF dba_directories;

  I found the drive among the results...

  OWNER NOM_REPERTOIRE
  ------------------------------ ------------------------------
  DIRECTORY_PATH
  --------------------------------------------------------------------------------
  SYS EMP_DIR
  F:\emp_dir

  SYS SUBDIR
  D:\oracle\product\10.2.0\db_1\demo\schema\order_entry\/2002/Sep

  SYS XMLDIR
  D:\oracle\product\10.2.0\db_1\demo\schema\order_entry\

  ----------------------
  2. I created an external table emp_data (the script is given by the text book): successfully done

  drop table emp_data;

  CREATE TABLE emp_data
  (first name VARCHAR2 (20))
  , last_name VARCHAR2 (20)
  , email VARCHAR2 (30)
  )
  EXTERNAL ORGANIZATION
  (
  TYPE oracle_loader
  Emp_dir default DIRECTORY
  ACCESS SETTINGS
  (
  RECORDS DELIMITED BY NEWLINE CHARACTERSET US7ASCII
  NOBADFILE
  NOLOGFILE
  FIELDS
  (first name POSITION (01:20) TANK)

  
  , last_name POSITION (22:41) TANK
  CHAR POSITION (43:72) by email)
  )
  LOCATION ('emp.dat'));

  --------------------------------

  3. I went to drive F:\ to see if emp_dir file exist or not! I did not see it. I checked the files hidden, nothing. Anyway, I ignored and did step 4.

  "Anyway, I ignored him... "

  and so the rest of your problems. I do not see in the steps you told that acually you created a directory ("folder") named "\emp_dir" on your f: drive. Anything that you create the database will actually create this directory on the operating system. Uttering a directory in Oracle, uttering an external table in Oracle, don't create pointers to Oracle objects will assume just actually exists.

• Reg: question of external table-

  Hi Experts,

  I am trying to create and read from an external table, but it raises an error. Please notify.

  Scenario-

  I'm downloading a file of my APEX application that is stored in a BLOB field. Then, comes the following:

  DBMS_LOB.CREATETEMPORARY (v_clob, true);

  -/ / Convert BLOB on the CLOB type

  () DBMS_LOB.converttoclob

  v_clob, v_blob,

  DBMS_LOB. LOBMAXSIZE,

  v_dest_offset, v_src_offset,

  v_blob_csid, v_lang_context, g_msg

  );

  -/ / creating a csv file

  v_temp_filename: = 'apex_ ' | TO_CHAR (sysdate, 'yyyymmddhh24miss') |'. CSV';

  -/ / Put the csv file in the database directory 'APEX_DIR '.

  dbms_xslprocessor.clob2file (v_clob, 'APEX_DIR', v_temp_filename);

  -/ / creating an external table

  v_ext_table: = q'[create table (apex_temp_data_ext)

  C001 varchar2 (4000), c002 varchar2 (4000), c003 varchar2 (4000), c004 varchar2 (4000), c005 varchar2 (4000).

  C006 varchar2 (4000), c007 varchar2 (4000), c008 varchar2 (4000), c009 varchar2 (4000) c010 varchar2 (4000).

  C011 varchar2 (4000), c012 varchar2 (4000), c013 varchar2 (4000), c014 varchar2 (4000), c015 varchar2 (4000).

  C016 varchar2 (4000), c017 varchar2 (4000), c018 varchar2 (4000), c019 varchar2 (4000), c020 varchar2 (4000).

  C021 varchar2 (4000), c022 varchar2 (4000), c023 varchar2 (4000), c024 varchar2 (4000), see c025 varchar2 (4000).

  C026 varchar2 (4000), c027 varchar2 (4000), c028 varchar2 (4000), c029 varchar2 (4000), c030 varchar2 (4000).

  C031 varchar2 (4000), c032 varchar2 (4000), c033 varchar2 (4000), c034 varchar2 (4000), c035 varchar2 (4000).

  c037 varchar2 (4000), c038 varchar2 (4000), c039 varchar2 (4000), C036 varchar2 (4000), c040 varchar2 (4000).

  c042 varchar2 (4000), c043 varchar2 (4000), c044 varchar2 (4000), c041 varchar2 (4000), c045 varchar2 (4000).

  C046 varchar2 (4000), c047 varchar2 (4000), c048 varchar2 (4000), c049 varchar2 (4000), c050 varchar2 (4000)

  )

  (external) Organization

  type oracle_loader

  the default directory apex_dir

  (settings) access

  records delimited by newline

  fields completed by «,»

  surrounded of possibly ' "' and '"' NOTRIM

  missing field values are null

  (

  C001 varchar2 (4000), c002 varchar2 (4000), c003 varchar2 (4000), c004 varchar2 (4000), c005 varchar2 (4000).

  C006 varchar2 (4000), c007 varchar2 (4000), c008 varchar2 (4000), c009 varchar2 (4000) c010 varchar2 (4000).

  C011 varchar2 (4000), c012 varchar2 (4000), c013 varchar2 (4000), c014 varchar2 (4000), c015 varchar2 (4000).

  C016 varchar2 (4000), c017 varchar2 (4000), c018 varchar2 (4000), c019 varchar2 (4000), c020 varchar2 (4000).

  C021 varchar2 (4000), c022 varchar2 (4000), c023 varchar2 (4000), c024 varchar2 (4000), see c025 varchar2 (4000).

  C026 varchar2 (4000), c027 varchar2 (4000), c028 varchar2 (4000), c029 varchar2 (4000), c030 varchar2 (4000).

  C031 varchar2 (4000), c032 varchar2 (4000), c033 varchar2 (4000), c034 varchar2 (4000), c035 varchar2 (4000).

  c037 varchar2 (4000), c038 varchar2 (4000), c039 varchar2 (4000), C036 varchar2 (4000), c040 varchar2 (4000).

  c042 varchar2 (4000), c043 varchar2 (4000), c044 varchar2 (4000), c041 varchar2 (4000), c045 varchar2 (4000).

  C046 varchar2 (4000), c047 varchar2 (4000), c048 varchar2 (4000), c049 varchar2 (4000), c050 varchar2 (4000)

  )

  )

  location ('] ' |) v_temp_filename | " ')

  )

  3 parallel

  reject limit unlimited;] " ;

  
  

  
  

  immediately run v_ext_table;
  

  It gives me a generic mistake on the front-end server. But, when I take this external Table as well as the "v_temp_filename", that it is created, but when the SELECTION is fired triggers error:

  ORA-29913: error in executing ODCIEXTTABLEOPEN legend

  ORA-29400: data cartridge error

  KUP-00554: error occurred when parsing the access settings

  KUP-01005: syntax error: found 'distinctive sign': expected an a: "binary_double, types binary_float, comma, date, defaultif, char, decimal, double, float, integer, (, nullif, oracle_date, oracle_number, position, raw, recnum,), unsigned, varchar, varraw, varrawc, varcharc, zoned.

  KUP-01008: the bad ID was: varchar2

  KUP-01007: in column 15 of line 6

  Privilege is already provided - GRANT READ, WRITE on APEX_DIR to APEX_DEV;

  But you should check with DBA on the rwx for the generated 'v_temp_filename' permission.

  Pointers?

  Thank you and best regards,

  Nordine

  (on Oracle 11.2.0.3.0, Apex 4.2.5)

  Try this:

  . . .   E t c...

  -/ / creating an external table

  v_ext_table: = "CREATE TABLE Apex_Temp_Data_Ext

  (

  C001 VARCHAR2 (4000), C002 VARCHAR2 (4000), C003 VARCHAR2 (4000), C004 VARCHAR2 (4000), C005 VARCHAR2 (4000).

  C006 VARCHAR2 (4000), C007 VARCHAR2 (4000), C008 VARCHAR2 (4000), C009 VARCHAR2 (4000), C010 VARCHAR2 (4000).

  C011 VARCHAR2 (4000), C012 VARCHAR2 (4000), C013 VARCHAR2 (4000), C014 VARCHAR2 (4000), C015 VARCHAR2 (4000).

  C016 VARCHAR2 (4000), C017 VARCHAR2 (4000), C018 VARCHAR2 (4000), C019 VARCHAR2 (4000), C020 VARCHAR2 (4000).

  C021 VARCHAR2 (4000), C022 VARCHAR2 (4000), C023 VARCHAR2 (4000), C024 VARCHAR2 (4000), SEE C025 VARCHAR2 (4000).

  C026 VARCHAR2 (4000), C027 VARCHAR2 (4000), C028 VARCHAR2 (4000), C029 VARCHAR2 (4000), C030 VARCHAR2 (4000).

  C031 VARCHAR2 (4000), C032 VARCHAR2 (4000), C033 VARCHAR2 (4000), C034 VARCHAR2 (4000), C035 VARCHAR2 (4000).

  C036 VARCHAR2 (4000), C037 VARCHAR2 (4000), C038 VARCHAR2 (4000), C039 VARCHAR2 (4000), C040 VARCHAR2 (4000).

  C041 VARCHAR2 (4000), C042 VARCHAR2 (4000), C043 VARCHAR2 (4000), C044 VARCHAR2 (4000), C045 VARCHAR2 (4000).

  C046 VARCHAR2 (4000), C047 VARCHAR2 (4000), C048 VARCHAR2 (4000), C049 VARCHAR2 (4000), C050 VARCHAR2 (4000)

  )

  (EXTERNAL) ORGANIZATION

  TYPE Oracle_Loader

  The DEFAULT DIRECTORY Apex_Dir

  (SETTINGS) ACCESS

  RECORDS DELIMITED BY NEWLINE

  FIELDS TERMINATED BY ","

  OPTIONALLY SURROUNDED BY "" "AND" "" NOTRIM

  MISSING FIELD VALUES ARE NULL

  (

  C001 TANK (4000), C002 TANK (4000), C003 TANK (4000), C004 TANK (4000), CHAR C005 (4000),

  C006 TANK (4000), C007 TANK (4000), C008 TANK (4000), C009 TANK (4000), C010 TANK (4000).

  C011 TANK (4000), C012 TANK (4000), C013 TANK (4000), CHAR C014 (4000), C015 TANK (4000),

  C016 TANK (4000), C017 TANK (4000), CHAR C018 (4000), C019 TANK (4000), C020 TANK (4000),

  C021 TANK (4000), C022 TANK (4000), C023 TANK (4000), CHAR C024 (4000), SEE C025 TANK (4000),

  C026 TANK (4000), CHAR C027 (4000), C028 TANK (4000), C029 TANK (4000), C030 TANK (4000),

  C031 TANK (4000), C032 TANK (4000), C033 TANK (4000), C034 TANK (4000), C035 TANK (4000).

  C036 TANK (4000), C037 TANK (4000), C038 TANK (4000), C039 TANK (4000), C040 TANK (4000).

  C041 TANK (4000), C042 TANK (4000), C043 TANK (4000), C044 TANK (4000), C045 TANK (4000).

  C046 TANK (4000), C047 TANK (4000), C048 TANK (4000), C049 TANK (4000), C050 TANK (4000)

  )

  )

  LOCATION('''||) V_Temp_Filename | " ')

  )

  3 PARALLEL

  UNLIMITED RELEASE LIMIT ';

  . . .   E t c...

• External table to read another encoding

  Hi all
  
  I am having some problems with the external table. My database coding is currently AL32UTF8. If my external table wants to read the txt file with the ZHS16GBK, the value is displayed not correctly when the external table reads the file. Y at - it means to display the value in the file txt correctly without changing the database coding and coding in the txt file.

  You can give a character defined in the external table definition.
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  I can create a Refresh on demand, it is not a question of not having the necessary permissions to create the materialized view itself.

  No, you can't. The outer table is not modified in a transactional way and there no materialized view logs, so there is no event to hang in and no delta to apply.

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  set verify off
  
  create or replace directory 'TRACE_DIR' as '/db_home/oracle/product/diag/rdbms/test/dtms_t/trace';
  
  column id new_value os_user;
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    2                     (line varchar2(80)
    3                     )
    4       ORGANIZATION EXTERNAL
    5       (
    6         TYPE ORACLE_LOADER
    7         DEFAULT DIRECTORY trace_dir
    8         ACCESS PARAMETERS
    9         (
   10           records delimited by newline
   11           missing field values are null
   12           ( line
   13           )
   14         )
   15         LOCATION (&&tracefile)
   16       )
   17       REJECT LIMIT UNLIMITED;
         LOCATION (ddtms_t_ora_9101_JBROCK.trc)
                                              *
       
  ERROR at line 15:
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  Hello

  JimmyB wrote:

  ... jbrock@ddtms_t> CREATE TABLE trace_ext
  2                     (line varchar2(80)
  3                     )
  4       ORGANIZATION EXTERNAL
  5       (
  6         TYPE ORACLE_LOADER
  7         DEFAULT DIRECTORY trace_dir
  8         ACCESS PARAMETERS
  9         (
  10           records delimited by newline
  11           missing field values are null
  12           ( line
  13           )
  14         )
  15         LOCATION (&&tracefile)
  16       )
  17       REJECT LIMIT UNLIMITED;
  LOCATION (ddtms_t_ora_9101_JBROCK.trc)
  *
  
  ERROR at line 15:
  ORA-00905: missing keyword
  

  The location must not be single-quotes? For line 15, try

  LOCATION ('&&tracefile')
  

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  d               2010-06-21 13:25:23               2               1073807679               0               4               1               1               0               415               348                mtp       16387 ALIGN TIMER 2 EXPIRED iacSt=8 (Lnk 1)
  
  
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  64 09 09 09 32 30 31 30 2D 30 36 2D 32 31 20 31 33 3A 32 35 3A 32 33 09 09 09 32 09 09 09 31 30 37 33 38 30 37 36 37 39 09 09 09 30 09 09 09 34 09 09 09 31 09 09 09 31 09 09 09 30 09 09 09 34 31 35 09 09 09 33 34 38 09 09 09 20 6D 74 70 20 20 20 20 20 20 20 31 36 33 38 37 20 41 4C 49 47 4E 20 54 49 4D 45 52 20 32 20 45 58 50 49 52 45 44 20 69 61 63 53 74 3D 38 20 28 4C 6E 6B 20 31 29 0A 0A 0A 78 78 09 09 09 32 30 31 30 2D 30 36 2D 32 31 20 31 33 3A 32 35 3A 32 33 09 09 09 32 09 09 09 31 30 37 33 38 30 37 36 37 39 09 09 09 30 09 09 09 34 09 09 09 31 09 09 09 31 09 09 09 30 09 09 09 34 31 35 09 09 09 33 34 38 09 09 09 20 6D 74 70 20 20 20 20 20 20 20 31 36 33 38 37 20 53 65 6E 74 20 53 49 4F 53 20 28 4C 6E 6B 20 31 29 20 28 41 6C 69 67 6E 4E 50 20 69 6E 20 49 6E 69 74 69 61 6C 41 6C 69 67 6E 29 0A 0A 0A 

  You can see that there is a total of 6 '0 a' or 6 new lines. However, I get the following results:

  select regexp_count(outputrow,'[[:cntrl:]]') control,regexp_count(outputrow,'[[:space:]]') space, regexp_count(outputrow,'[\n]') backslash_n, regexp_count(outputrow,'[\x0A]') x0A  
  from BULK_BAD_FILE_EXTERNAL b;
     CONTROL      SPACE BACKSLASH_N        X0A
  ---------- ---------- ----------- ----------
          72        104           9         22

  what I am doing wrong?

  11g is not yet I'd

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    from bulk_bad_file_external
  

  Concerning

  Etbin

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  I want to create an external table and add a sysdate with the YYMMDD format in the column of the table for an update. Thank you.
  
  entry would look like this:
  
  [email protected]
  
  
  create table ext_ID_REQ_table)
  account varchar2 (5).
  email varchar (85).
  date of date_update
  )
  
  (external) Organization
  type oracle_loader
  default directory user_dir
  (settings) access
  records delimited by newline
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  logfile ID_REQ_log_dir:'ACT_EMAIL%a_%p.log'
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  account position(1:5) char (5),
  e-mail position(6:90) tank (85),
  date_update char date_format date mask "YYMMDD") / I'm not sure of the syntax of date_update.
  )
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  location ("test.txt")
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  reject limit unlimited;

  mlojan wrote:
  It lies in the part parameters access and what the SYSDATE part?

  I misread your question. External tables do not support the built-in functions. And there is no need for this. Just use them to select in the external table. So get rid of the date_update column in the external table:

  create table ext_ID_REQ_table (
  account varchar2(5),
  email varchar(85)
  )
  
  organization external (
  type oracle_loader
  default directory user_dir
  access parameters (
  records delimited by newline
  badfile ID_REQ_bad_dir:'ACCT_EMAIL%a_%p.bad'
  logfile ID_REQ_log_dir:'ACT_EMAIL%a_%p.log'
  fields (
  account position(1:5) char(5),
  email position(6:90) char(85)
  )
  )
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  )
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  Assume that the test.txt file is:

  A    [email protected]
  B    [email protected]
  C    [email protected]
  

  In select now use sysdate right:

  SQL> select  account,
    2          email,
    3          sysdate date_update
    4    from  ext_ID_REQ_table
    5  /
  
  ACCOU EMAIL                                                                                 DATE_UPDA
  ----- ------------------------------------------------------------------------------------- ---------
  A     [email protected]                                                                               15-JUN-10
  B     [email protected]                                                                               15-JUN-10
  C     [email protected]                                                                               15-JUN-10
  
  SQL> 
  

  SY.

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  Im trying to create a table of externla for the comma-delimited file
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  example of record
  

  1,one,first
  2,two,second
  3,three,third
  4,four,"4,fourth"

  Example of table
  

  create table ext_table_csv (
    i   Number,
    n   Varchar2(20),
    m   Varchar2(20)
  )
  organization external (
    type              oracle_loader
    default directory ext_dir
    access parameters (
      records delimited  by newline
      fields  terminated by ','
      missing field values are null
    )
    location ('file.csv')
  )
  reject limit unlimited;

  So when I question this record 4 table of Externla will be read as
  
  M/2
  

  i           n                      m
  4         four     "4
  {code}
  Above Ext table is just an example, Im adding bad file and log file in real table.
  
  Please help me if there is a way this can be resolved with external table.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

  Change the definition of:

  FIELDS TERMINATED BY ', '.

  TO:

  FIELDS ENDED BY ',' POSSIBLY FRAMED BY "" "

• -Order of the lines of external tables

  Hi all
  
  I have a request that copies of the user DB files and then system file it opens as external table... The following data flow is to copy the data from this external table and perform actions on this issue.
  My question is that I have to report line number, where an error has occurred and this line number must match the number of physical lines in the file... Can I rely on the fact that if I do something like

  SELECT rownum, t.* FROM ext_table t

  the ROWNUM will correspond to the line number in the file. I'm just a question because it is not documented anywhere.
  
  I'm under Oracle XE, but we will probably move to 11g (or something never) in the future.
  
  Thank you
  Adam

  You can add a column in the external table and use the RECNUM parameter to fill. Then use ORDER BY this column for lines in the same order that they are in the source file.

  SY.