ABAP Select data from SAP table DMEBRLHH3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DMEBRLHH3 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 DMEBRLHH3. 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 DMEBRLHH3 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_DMEBRLHH3 TYPE STANDARD TABLE OF DMEBRLHH3,
      WA_DMEBRLHH3 TYPE DMEBRLHH3,
      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: <DMEBRLHH3> TYPE DMEBRLHH3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DMEBRLHH3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DMEBRLHH3
  INTO TABLE IT_DMEBRLHH3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DMEBRLHH3
*  INTO TABLE @DATA(IT_DMEBRLHH32).
*--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_DMEBRLHH3 INDEX 1 INTO DATA(WA_DMEBRLHH32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DMEBRLHH3 ASSIGNING <DMEBRLHH3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DMEBRLHH3>-H301 = 1.
<DMEBRLHH3>-H302 = 1.
<DMEBRLHH3>-H303 = 1.
<DMEBRLHH3>-H304 = 1.
<DMEBRLHH3>-H305 = 1.

ENDLOOP.

LOOP AT IT_DMEBRLHH3 INTO WA_DMEBRLHH3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DMEBRLHH3-H306, sy-vline,
  WA_DMEBRLHH3-H307, sy-vline,
  WA_DMEBRLHH3-H308, sy-vline,
  WA_DMEBRLHH3-H309, sy-vline,
  WA_DMEBRLHH3-H310, sy-vline,
  WA_DMEBRLHH3-H311, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DMEBRLHH3 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_DMEBRLHH3 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_DMEBRLHH3 INTO WA_DMEBRLHH3.


*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.
ENDFORM. 

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

TYPES: BEGIN OF T_DMEBRLHH3_STR, 
H301 TYPE STRING,
H302 TYPE STRING,
H303 TYPE STRING,
H304 TYPE STRING,
H305 TYPE STRING,
H306 TYPE STRING,
H307 TYPE STRING,
H308 TYPE STRING,
H309 TYPE STRING,
H310 TYPE STRING,
H311 TYPE STRING,
H312 TYPE STRING,
H313 TYPE STRING,
H314 TYPE STRING,
H315 TYPE STRING,
H316 TYPE STRING,
H317 TYPE STRING,
H318 TYPE STRING,
H319 TYPE STRING,
H320 TYPE STRING,
H321 TYPE STRING,
H322 TYPE STRING,
H323 TYPE STRING,
UP_CRLF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DMEBRLHH3_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_DMEBRLHH3_STR-H301 sy-vline 
WA_DMEBRLHH3_STR-H302 sy-vline 
WA_DMEBRLHH3_STR-H303 sy-vline 
WA_DMEBRLHH3_STR-H304 sy-vline 
WA_DMEBRLHH3_STR-H305 sy-vline 
WA_DMEBRLHH3_STR-H306 sy-vline 
WA_DMEBRLHH3_STR-H307 sy-vline 
WA_DMEBRLHH3_STR-H308 sy-vline 
WA_DMEBRLHH3_STR-H309 sy-vline 
WA_DMEBRLHH3_STR-H310 sy-vline 
WA_DMEBRLHH3_STR-H311 sy-vline 
WA_DMEBRLHH3_STR-H312 sy-vline 
WA_DMEBRLHH3_STR-H313 sy-vline 
WA_DMEBRLHH3_STR-H314 sy-vline 
WA_DMEBRLHH3_STR-H315 sy-vline 
WA_DMEBRLHH3_STR-H316 sy-vline 
WA_DMEBRLHH3_STR-H317 sy-vline 
WA_DMEBRLHH3_STR-H318 sy-vline 
WA_DMEBRLHH3_STR-H319 sy-vline 
WA_DMEBRLHH3_STR-H320 sy-vline 
WA_DMEBRLHH3_STR-H321 sy-vline 
WA_DMEBRLHH3_STR-H322 sy-vline 
WA_DMEBRLHH3_STR-H323 sy-vline 
WA_DMEBRLHH3_STR-UP_CRLF sy-vline      INTO ld_text SEPARATED BY SPACE.

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