Append data to existing tables when performing an IMPORT

Hi,
I am using oracle 10g.
I have a dump for a table employees from schema A which i need to import into a schema B.
The employees table already exists in schema B.
I want to append the data from the dump to the existing rows in schema B.
Which parameter do we need to set to do this ??
Thanks.
Edited by: Amm-K on Nov 24, 2008 12:37 PM

If your and my definition of append is the same, a normal import would fail to import the rows which already exist in target table but would import the rows which do not exist in the target table (which is APPEND). So you don't need to specify any special parameter in this case.
If you need to modify the existing rows with the data in the dump file, import does not provide such a option.

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How to import and append data on existing table ?

Hi..
I have done export data from tmp_nv2_nrm_ain table into some file using the command as below:-
exp username/password tables=TMP_NV2_NRM_AIN file=TMP_NV2_NRM_AIN log=test.log constraints=no
The question is how could i import the data from file back to database without overwrite any data on the TMP_NV2_NRM_AIN table.
And what is the query..
This is my query... please correct me if I am wrong..
imp username/passwrod tables=TMP_NV2_NRM_AIN file=/acec/nv2am/monitor/backup/test/AIN/MAR-2010/TMP_NV2_NRM_AIN.dmp log=/acec/nv2am/monitor/backup/test/test.log ignore=y
Thank you,
Baharin
Edited by: baharin on Jul 1, 2010 7:51 PM

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http://wiki.sdn.sap.com/wiki/display/ABAP/CreationofView+Cluster
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Compress all dat ain existing table

Hi,
We are using oracle 11.2.0.3 and wish to evaluate performance of compression in terms of reducing time takes for reports aganis the tables to run.
Have had a quick serach and can see alter table compress but talks about only data inserted/updated after the compress operationexecute is compressed.
Don't want to have to create separate table, compressed and replace other table with this.
Is it possible to compress all existing dat aof existing table?
Also what sort of magntitudes of performance gain coudl we expect on report performance by using compression versus identical tabel but uncompressed?
Also this is a data warehouse and the large fact table already has bitmpa indexes which by default compressed.
Tlamking about table compression here.
Thanks
Edited by: user5716448 on 05-Mar-2013 05:57

>
Trying to make reports as fast as possible.
>
Such a blanket 'fast as possible' goal is unrealistic and unattainable. Sounds like a requirement from a business user.
A goal needs to be specific to be attainable. An index that makes one report faster might make several others slower.
A report might run fast one day and slow another, or fast the first week of a new month and slow the last week. The cause might be as simple as the varying amount of monthly data at the start versus the end of the month.
I suggest you itemize your reports and identify a specific goal (SLA - service-level agreement) for each one. Base the goal on the performance you are getting now and state it explicitly: returns results in less than 30 seconds during peak-usage periods (identify a sample peak period).
>
Believe do not need to have a problem in oredr to loook for the most effcient solution.
>
You might want to read that again now that you've had a good night's sleep and a cup of coffee.
A 'solution' cannot exist without a problem: what would it be the solution for?
>
If have quick reports, but can make even quicker that is something we would wnat to do.
>
Back to that again? You need to establish an SLA for each report and only worry about it if it starts failing to meet that SLA.
In other words, for any individual report determine what is 'quick enough' and let it go at that. Things can almost always be made quicker but there can be a big price to pay. Without an SLA for a goal you will have a moving target that can never be met because you can NEVER prove that it couldn't be quicker if you just tweaked it some more.
>
In your experience, all other thinsg being indentical as is good practice with any experment, what sort of performance gains coudl we expect with comnpression and report performance compare to non-compressed data?
Also, in such star queries is it advisable just to compress the central fact table or would the dimesnions benefit from compression?
>
Yes - the benefits can be greater for indexes and dimension tables than for the fact tables themselves. Indexes benefit because fewer index blocks are needed so hot blocks are more likely to be in cache. Same thing with the small dimension (lookup) tables. Fact tables using star-schema data get an additional benefit from the compression of the multiple key values that compress more readily than arbitrary text data like addresses.
The key missing piece of information is that you haven't specified what compression options are availlable to you.
Are you only considering BASIC compression? Or have you licensed Oracle's advanced compression?
http://www.oracle.com/technetwork/database/storage/advanced-compression-whitepaper-130502.pdf

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Hello
How to append data from one table t1 to another table t2.
t1 and t2 have the same structures .
t2 contains already data so i don't want do delete it and create it as select * from t1.
If there is a mean to add t1 content without altering t2 content.
Thanks in advance

insert into t2
select * from t1

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B-rock

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SQL Loader to append data in same table but using differnet WHEN clauses

In my data file i have a header record and a detail record identified by Record_type = 1 and 2 respectively.
The Database table has all the columns to capture detail records but i want to capture jus one column of header record now also in my existing table. So i have added that column (DATA_DATE)in my table but how to capture that value ?
im writing my control file using two WHEN clauses, something like -
load data
into table t_bdn
append
when RECORD_TYPE = '2'
FIELDS TERMINATED BY "|" TRAILING NULLCOLS
SEQUENCE_NO
, RECORD_TYPE
, DISTRIBUTOR_CODE
, SUPPLIER_CODE
, SUPPLIER_DISTRIBUTOR_CODE
, DISTRIBUTOR_SKU
, SUPPLIER_SKU
when RECORD_TYPE = '1'
FIELDS TERMINATED BY "|" TRAILING NULLCOLS
SEQUENCE_NO FILLER
, RECORD_TYPE FILLER
, CREATE_DATE FILLER
, DATA_DATE "NVL(to_date(:DATA_DATE, 'YYYY/MM/DD'),to_date('9999/12/31', 'YYYY/MM/DD'))"
im getting error " expecting INTO and foung WHEN RECORD_TYPE = '1' "
if i give iNTO second time it will append a new row altogether in my table but i want the same row to be updated with this DATA_DATE value coming from RECORD_TYPE =1 and header record has 4 delimited data text fields only and i am interested in fetching just the 4th column..
KIndly suggest what to do ?

Ravneek, I could be wrong but sqlldr is a 'load' program, that is, it inserts data. I am unaware of any ability to update existing rows as you seem to want. What you appear to want to do is more the job of a merge statement.
I would look at writing a pro* language, a .net, or a java program to perform inserts where some or all of the newly inserted rows are also to be updated.
From the manual: (Oracle® Database Utilities 10g Release 2 (10.2) Part Number B14215-01)
Updating Existing Rows
The REPLACE method is a table replacement, not a replacement of individual rows. SQL*Loader does not update existing records, even if they have null columns. To update existing rows, use the following procedure:
1. Load your data into a work table.
2. Use the SQL language UPDATE statement with correlated subqueries.
3. Drop the work table.
HTH -- Mark D Powell --

Urgent - Append data to internal table from Application server

Hi All,
I encountered the problem while read the input file from Application server...then append it to internal table. I manage to read the input file from presentation and append the data to internal table.
Below are my coding which cause me not able the append data from Application server. Please kindly help me to solving/correct my coding. Thanks in advance .
PARAMETERS : p_inpfl LIKE rlgrap-filename. "Material Input File
SELECTION-SCREEN BEGIN OF LINE.
Application Server
SELECTION-SCREEN COMMENT 1(19) text-002 FOR FIELD rb_ux.
SELECTION-SCREEN POSITION 33.
PARAMETERS: rb_ux RADIOBUTTON GROUP g1.
Presentation Server
SELECTION-SCREEN COMMENT 40(21) text-003 FOR FIELD rb_pc.
SELECTION-SCREEN POSITION 65.
PARAMETERS: rb_pc RADIOBUTTON GROUP g1 DEFAULT 'X'.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN SKIP.
SELECTION-SCREEN END OF BLOCK b01.
FORM f_Input_file.
CLEAR: v_f_exists.
CHECK NOT p_inpfl IS INITIAL. "input file exist
IF NOT rb_pc IS INITIAL. " Pc check
    PERFORM f_read_tab_delimited_file TABLES i_input
                           USING    c_09
                                    p_inpfl
                                    rb_ux
                           CHANGING v_ifile_str_with_tab
                                    v_f_exists
                                    v_ifile_record_count
                                    v_message.
    IF v_f_exists EQ '1' .
UPLOAD FILE could not be read
      MESSAGE e546 .
    ENDIF .
    IF v_ifile_record_count EQ 0 .
Zero records in upload file
      MESSAGE e547 .
    ENDIF.
ELSE.
    OPEN DATASET p_inpfl FOR INPUT IN TEXT MODE.
    DO.
      READ DATASET p_inpfl INTO i_input.
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        APPEND i_input.
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        EXIT.
      ENDIF.
    ENDDO.
    CLOSE DATASET p_inpfl.
ENDIF.

Hi,
Refere the following code for the poulating internal from the application server.
PARAMETERS : pr_sfile TYPE filename-fileintern,
Here give the logical file name from the application serevr.
data :        w_param_1 LIKE filename-fileintern,
               x_file(500),
               w_move_file LIKE epsf-epsfilnam,
               w_from_dir LIKE epsf-epsdirnam,
               w_path LIKE rlgrap-filename,
              input_line(1000),
              w_path LIKE rlgrap-filename,
              w_file LIKE rlgrap-filename,
              w_dir LIKE rlgrap-filename,
              w_dir1 LIKE epsf-epsdirnam,
              w_file1 LIKE epsf-epsfilnam,
**************Start of the code***************
MOVE '*' TO w_param_1.
PERFORM get_file_name USING pr_sfile w_param_1.
    LOOP AT it_file WHERE name CP w_file1.
      CLEAR : x_file, w_path,
              w_move_file, w_from_dir.
      REFRESH : it_input,
                it_input_err.
   IF w_flag IS INITIAL.
      CONCATENATE w_dir it_file-name INTO x_file.
      CONDENSE x_file.
TO Move file from sever for backup storing the file name and path
      w_path = x_file.
      CALL FUNCTION 'TRINT_SPLIT_FILE_AND_PATH'
        EXPORTING
          full_name     = x_file
        IMPORTING
          stripped_name = w_move_file
          file_path     = w_from_dir
        EXCEPTIONS
          x_error       = 1
          OTHERS        = 2.
      IF sy-subrc <> 0.
        MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
                WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
      ENDIF.
********here it_input will be the structure of the file present on the application server
      PERFORM read_file TABLES it_input
                        USING x_file.
      CLEAR it_input_err.
      REFRESH it_input.
    ENDLOOP.
*******************end of the code****************
*&      Form read_file
      text
     -->P_X_FILE text
FORM read_file TABLES it_tab
                USING x_file.
OPEN DATASET x_file FOR INPUT IN TEXT MODE ENCODING DEFAULT.
IF sy-subrc NE 0.
    WRITE : / text-006.
ELSE.
    DO.
      READ DATASET x_file INTO input_line.
      IF sy-subrc = 0.
        CLEAR: it_input, count.
        DO.
          ADD 1 TO count.
          ASSIGN COMPONENT count OF STRUCTURE it_tab TO <fs>.
          IF sy-subrc = 0.
            SPLIT input_line AT separator INTO <fs> input_line.
          ELSE.
            EXIT.
          ENDIF.
        ENDDO.
        APPEND it_tab.
      ELSE.
        EXIT.
      ENDIF.
    ENDDO.
ENDIF.
CLOSE DATASET x_file.
*&      Form get_file_name
      text
     -->P_P_SFILE text
     -->P_W_PARAM_1 text
FORM get_file_name USING    p_sfile
                            w_param_1.
                           CHANGING x_file.
CALL FUNCTION 'FILE_GET_NAME'
    EXPORTING
      client           = sy-mandt
      logical_filename = p_sfile
      parameter_1      = w_param_1
    IMPORTING
      file_name        = x_file
    EXCEPTIONS
      file_not_found   = 1
      OTHERS           = 2.
IF sy-subrc <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
w_path = x_file.
CALL FUNCTION 'TRINT_SPLIT_FILE_AND_PATH'
    EXPORTING
      full_name     = w_path
    IMPORTING
      stripped_name = w_file
      file_path     = w_dir
    EXCEPTIONS
      x_error       = 1
      OTHERS        = 2.
IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
w_dir1 = w_dir.
w_file1 = w_file.
CALL FUNCTION 'EPS_GET_DIRECTORY_LISTING'
    EXPORTING
      dir_name               = w_dir1
      file_mask              = w_file1
    TABLES
      dir_list               = it_file
    EXCEPTIONS
      invalid_eps_subdir     = 1
      sapgparam_failed       = 2
      build_directory_failed = 3
      no_authorization       = 4
      read_directory_failed = 5
      too_many_read_errors   = 6
      empty_directory_list   = 7
      OTHERS                 = 8.
IF sy-subrc <> 0.
    WRITE : / text-006.
ENDIF.
Hope this will help you.

Want to copy/append data in one table to another

Hi,
I have two similar tables Alo_table and Alo_table_test with different indexes, partitions etc.
Alo_table has some data. I want to copy/append this data in to Alo_table_test for further testing. How to copy/append data without changing the other settings from Alo_table to Alo_table_test?
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May be you are Looking for MERGE statement
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MERGE INTO bonuses B
USING (
SELECT employee_id, salary
FROM employee
WHERE dept_no =20) E
ON (B.employee_id = E.employee_id)
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UPDATE SET B.bonus = E.salary * 0.1
WHEN NOT MATCHED THEN
INSERT (B.employee_id, B.bonus)
VALUES (E.employee_id, E.salary * 0.05);

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Append data from one table to another.

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Append data to internal table

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Hi Lucky,
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Hi gurus,
Recently i've been working with SEM-BPS and now i have an issue,
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Hello All,
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Append data to existing tables when performing an IMPORT

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