ABAP Select data from SAP table ML4H_MLDOCCCSHD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ML4H_MLDOCCCSHD table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to ML4H_MLDOCCCSHD. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the ML4H_MLDOCCCSHD table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_ML4H_MLDOCCCSHD TYPE STANDARD TABLE OF ML4H_MLDOCCCSHD,
      WA_ML4H_MLDOCCCSHD TYPE ML4H_MLDOCCCSHD,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <ML4H_MLDOCCCSHD> TYPE ML4H_MLDOCCCSHD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ML4H_MLDOCCCSHD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ML4H_MLDOCCCSHD
  INTO TABLE IT_ML4H_MLDOCCCSHD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ML4H_MLDOCCCSHD
*  INTO TABLE @DATA(IT_ML4H_MLDOCCCSHD2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_ML4H_MLDOCCCSHD INDEX 1 INTO DATA(WA_ML4H_MLDOCCCSHD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ML4H_MLDOCCCSHD ASSIGNING <ML4H_MLDOCCCSHD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ML4H_MLDOCCCSHD>-MANDT = 1.
<ML4H_MLDOCCCSHD>-MATNR = 1.
<ML4H_MLDOCCCSHD>-BWKEY = 1.
<ML4H_MLDOCCCSHD>-BWTAR = 1.
<ML4H_MLDOCCCSHD>-SOBKZ = 1.

ENDLOOP.

LOOP AT IT_ML4H_MLDOCCCSHD INTO WA_ML4H_MLDOCCCSHD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ML4H_MLDOCCCSHD-KZBWS, sy-vline,
  WA_ML4H_MLDOCCCSHD-XOBEW, sy-vline,
  WA_ML4H_MLDOCCCSHD-VBELN, sy-vline,
  WA_ML4H_MLDOCCCSHD-POSNR, sy-vline,
  WA_ML4H_MLDOCCCSHD-PSPNR, sy-vline,
  WA_ML4H_MLDOCCCSHD-LIFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ML4H_MLDOCCCSHD you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_ML4H_MLDOCCCSHD TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_ML4H_MLDOCCCSHD INTO WA_ML4H_MLDOCCCSHD.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field JAHRPER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-JAHRPER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-JAHRPER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field JAHRPER_WIP
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-JAHRPER_WIP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-JAHRPER_WIP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field CURRENT_PER
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-CURRENT_PER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-CURRENT_PER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field KJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-KJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-KJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WASYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-WASYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-WASYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ML4H_MLDOCCCSHD-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ML4H_MLDOCCCSHD-AWREF.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ML4H_MLDOCCCSHD_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
BWKEY TYPE STRING,
BWTAR TYPE STRING,
SOBKZ TYPE STRING,
KZBWS TYPE STRING,
XOBEW TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
PSPNR TYPE STRING,
LIFNR TYPE STRING,
MLAST TYPE STRING,
KALNR TYPE STRING,
DOCREF TYPE STRING,
CURTP TYPE STRING,
RLDNR TYPE STRING,
RUNREF TYPE STRING,
ACC_PRINCIPLE TYPE STRING,
JAHRPER TYPE STRING,
JAHRPER_WIP TYPE STRING,
CURRENT_PER TYPE STRING,
XABR TYPE STRING,
GLVOR TYPE STRING,
VGART TYPE STRING,
POSART TYPE STRING,
CATEG TYPE STRING,
PTYP TYPE STRING,
BEWARTGRP TYPE STRING,
BVALT TYPE STRING,
PROCESS TYPE STRING,
PKALNR TYPE STRING,
MEINS TYPE STRING,
XEKREL TYPE STRING,
TIMESTAMP TYPE STRING,
BUDAT TYPE STRING,
CYCLENR TYPE STRING,
AUFNR TYPE STRING,
AUFPS TYPE STRING,
BELNR TYPE STRING,
KJAHR TYPE STRING,
POSNR_DOC TYPE STRING,
AWTYP TYPE STRING,
WASYS TYPE STRING,
AWORG TYPE STRING,
AWREF TYPE STRING,
AWITEM TYPE STRING,
AWITGRP TYPE STRING,
USNAM TYPE STRING,
TCODE TYPE STRING,
ELESMHK TYPE STRING,
ELEMENT TYPE STRING,
PATNR TYPE STRING,
DIPA TYPE STRING,
SVREL TYPE STRING,
MLCCT TYPE STRING,
KEART TYPE STRING,
WAERS TYPE STRING,
TOT TYPE STRING,
FIX TYPE STRING,
TOLL TYPE STRING,
FIXLL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ML4H_MLDOCCCSHD_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_ML4H_MLDOCCCSHD_STR-MANDT sy-vline 
WA_ML4H_MLDOCCCSHD_STR-MATNR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-BWKEY sy-vline 
WA_ML4H_MLDOCCCSHD_STR-BWTAR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-SOBKZ sy-vline 
WA_ML4H_MLDOCCCSHD_STR-KZBWS sy-vline 
WA_ML4H_MLDOCCCSHD_STR-XOBEW sy-vline 
WA_ML4H_MLDOCCCSHD_STR-VBELN sy-vline 
WA_ML4H_MLDOCCCSHD_STR-POSNR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-PSPNR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-LIFNR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-MLAST sy-vline 
WA_ML4H_MLDOCCCSHD_STR-KALNR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-DOCREF sy-vline 
WA_ML4H_MLDOCCCSHD_STR-CURTP sy-vline 
WA_ML4H_MLDOCCCSHD_STR-RLDNR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-RUNREF sy-vline 
WA_ML4H_MLDOCCCSHD_STR-ACC_PRINCIPLE sy-vline 
WA_ML4H_MLDOCCCSHD_STR-JAHRPER sy-vline 
WA_ML4H_MLDOCCCSHD_STR-JAHRPER_WIP sy-vline 
WA_ML4H_MLDOCCCSHD_STR-CURRENT_PER sy-vline 
WA_ML4H_MLDOCCCSHD_STR-XABR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-GLVOR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-VGART sy-vline 
WA_ML4H_MLDOCCCSHD_STR-POSART sy-vline 
WA_ML4H_MLDOCCCSHD_STR-CATEG sy-vline 
WA_ML4H_MLDOCCCSHD_STR-PTYP sy-vline 
WA_ML4H_MLDOCCCSHD_STR-BEWARTGRP sy-vline 
WA_ML4H_MLDOCCCSHD_STR-BVALT sy-vline 
WA_ML4H_MLDOCCCSHD_STR-PROCESS sy-vline 
WA_ML4H_MLDOCCCSHD_STR-PKALNR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-MEINS sy-vline 
WA_ML4H_MLDOCCCSHD_STR-XEKREL sy-vline 
WA_ML4H_MLDOCCCSHD_STR-TIMESTAMP sy-vline 
WA_ML4H_MLDOCCCSHD_STR-BUDAT sy-vline 
WA_ML4H_MLDOCCCSHD_STR-CYCLENR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-AUFNR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-AUFPS sy-vline 
WA_ML4H_MLDOCCCSHD_STR-BELNR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-KJAHR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-POSNR_DOC sy-vline 
WA_ML4H_MLDOCCCSHD_STR-AWTYP sy-vline 
WA_ML4H_MLDOCCCSHD_STR-WASYS sy-vline 
WA_ML4H_MLDOCCCSHD_STR-AWORG sy-vline 
WA_ML4H_MLDOCCCSHD_STR-AWREF sy-vline 
WA_ML4H_MLDOCCCSHD_STR-AWITEM sy-vline 
WA_ML4H_MLDOCCCSHD_STR-AWITGRP sy-vline 
WA_ML4H_MLDOCCCSHD_STR-USNAM sy-vline 
WA_ML4H_MLDOCCCSHD_STR-TCODE sy-vline 
WA_ML4H_MLDOCCCSHD_STR-ELESMHK sy-vline 
WA_ML4H_MLDOCCCSHD_STR-ELEMENT sy-vline 
WA_ML4H_MLDOCCCSHD_STR-PATNR sy-vline 
WA_ML4H_MLDOCCCSHD_STR-DIPA sy-vline 
WA_ML4H_MLDOCCCSHD_STR-SVREL sy-vline 
WA_ML4H_MLDOCCCSHD_STR-MLCCT sy-vline 
WA_ML4H_MLDOCCCSHD_STR-KEART sy-vline 
WA_ML4H_MLDOCCCSHD_STR-WAERS sy-vline 
WA_ML4H_MLDOCCCSHD_STR-TOT sy-vline 
WA_ML4H_MLDOCCCSHD_STR-FIX sy-vline 
WA_ML4H_MLDOCCCSHD_STR-TOLL sy-vline 
WA_ML4H_MLDOCCCSHD_STR-FIXLL sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.