ABAP Select data from SAP table HUM_HDR_PROPOSAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HUM_HDR_PROPOSAL
*  INTO TABLE @DATA(IT_HUM_HDR_PROPOSAL2).
*--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_HUM_HDR_PROPOSAL INDEX 1 INTO DATA(WA_HUM_HDR_PROPOSAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HUM_HDR_PROPOSAL>-EXIDV = 1.
<HUM_HDR_PROPOSAL>-EXIDA = 1.
<HUM_HDR_PROPOSAL>-VHILM = 1.
<HUM_HDR_PROPOSAL>-VHILM_KU = 1.
<HUM_HDR_PROPOSAL>-HU_STATUS_INIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HUM_HDR_PROPOSAL-HANDLE, sy-vline,
  WA_HUM_HDR_PROPOSAL-LOGSYS, sy-vline,
  WA_HUM_HDR_PROPOSAL-SPE_LOGPOS, sy-vline,
  WA_HUM_HDR_PROPOSAL-SPE_CHK_COUNTER, sy-vline,
  WA_HUM_HDR_PROPOSAL-SPE_IDART_01, sy-vline,
  WA_HUM_HDR_PROPOSAL-SPE_IDENT_01, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HUM_HDR_PROPOSAL 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_HUM_HDR_PROPOSAL 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_HUM_HDR_PROPOSAL INTO WA_HUM_HDR_PROPOSAL.


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

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

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

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

*Conversion exit ALPHA, internal->external for field TM_DOC_ITEM_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_HUM_HDR_PROPOSAL-TM_DOC_ITEM_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_HUM_HDR_PROPOSAL-TM_DOC_ITEM_ID.
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_HUM_HDR_PROPOSAL_STR, 
EXIDV TYPE STRING,
EXIDA TYPE STRING,
VHILM TYPE STRING,
VHILM_KU TYPE STRING,
HU_STATUS_INIT TYPE STRING,
HANDLE TYPE STRING,
LOGSYS TYPE STRING,
SPE_LOGPOS TYPE STRING,
SPE_CHK_COUNTER TYPE STRING,
SPE_IDART_01 TYPE STRING,
SPE_IDENT_01 TYPE STRING,
SPE_IDART_02 TYPE STRING,
SPE_IDENT_02 TYPE STRING,
SPE_IDART_03 TYPE STRING,
SPE_IDENT_03 TYPE STRING,
SPE_IDART_04 TYPE STRING,
SPE_IDENT_04 TYPE STRING,
TM_DOC_ID TYPE STRING,
TM_DOC_TCO TYPE STRING,
TM_DOC_ITEM_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HUM_HDR_PROPOSAL_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_HUM_HDR_PROPOSAL_STR-EXIDV sy-vline 
WA_HUM_HDR_PROPOSAL_STR-EXIDA sy-vline 
WA_HUM_HDR_PROPOSAL_STR-VHILM sy-vline 
WA_HUM_HDR_PROPOSAL_STR-VHILM_KU sy-vline 
WA_HUM_HDR_PROPOSAL_STR-HU_STATUS_INIT sy-vline 
WA_HUM_HDR_PROPOSAL_STR-HANDLE sy-vline 
WA_HUM_HDR_PROPOSAL_STR-LOGSYS sy-vline 
WA_HUM_HDR_PROPOSAL_STR-SPE_LOGPOS sy-vline 
WA_HUM_HDR_PROPOSAL_STR-SPE_CHK_COUNTER sy-vline 
WA_HUM_HDR_PROPOSAL_STR-SPE_IDART_01 sy-vline 
WA_HUM_HDR_PROPOSAL_STR-SPE_IDENT_01 sy-vline 
WA_HUM_HDR_PROPOSAL_STR-SPE_IDART_02 sy-vline 
WA_HUM_HDR_PROPOSAL_STR-SPE_IDENT_02 sy-vline 
WA_HUM_HDR_PROPOSAL_STR-SPE_IDART_03 sy-vline 
WA_HUM_HDR_PROPOSAL_STR-SPE_IDENT_03 sy-vline 
WA_HUM_HDR_PROPOSAL_STR-SPE_IDART_04 sy-vline 
WA_HUM_HDR_PROPOSAL_STR-SPE_IDENT_04 sy-vline 
WA_HUM_HDR_PROPOSAL_STR-TM_DOC_ID sy-vline 
WA_HUM_HDR_PROPOSAL_STR-TM_DOC_TCO sy-vline 
WA_HUM_HDR_PROPOSAL_STR-TM_DOC_ITEM_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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