ABAP Select data from SAP table HCMFAB_S_ENRO_COREQUISITE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HCMFAB_S_ENRO_COREQUISITE
*  INTO TABLE @DATA(IT_HCMFAB_S_ENRO_COREQUISITE2).
*--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_HCMFAB_S_ENRO_COREQUISITE INDEX 1 INTO DATA(WA_HCMFAB_S_ENRO_COREQUISITE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HCMFAB_S_ENRO_COREQUISITE>-PERNR = 1.
<HCMFAB_S_ENRO_COREQUISITE>-DATUM = 1.
<HCMFAB_S_ENRO_COREQUISITE>-BEGDA = 1.
<HCMFAB_S_ENRO_COREQUISITE>-ENDDA = 1.
<HCMFAB_S_ENRO_COREQUISITE>-SPRPS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HCMFAB_S_ENRO_COREQUISITE-BAREA, sy-vline,
  WA_HCMFAB_S_ENRO_COREQUISITE-BPCAT, sy-vline,
  WA_HCMFAB_S_ENRO_COREQUISITE-PLTYP, sy-vline,
  WA_HCMFAB_S_ENRO_COREQUISITE-EVENT, sy-vline,
  WA_HCMFAB_S_ENRO_COREQUISITE-ENRTY, sy-vline,
  WA_HCMFAB_S_ENRO_COREQUISITE-BPLAN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HCMFAB_S_ENRO_COREQUISITE 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_HCMFAB_S_ENRO_COREQUISITE 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_HCMFAB_S_ENRO_COREQUISITE INTO WA_HCMFAB_S_ENRO_COREQUISITE.


*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_HCMFAB_S_ENRO_COREQUISITE_STR, 
PERNR TYPE STRING,
DATUM TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SPRPS TYPE STRING,
BAREA TYPE STRING,
BPCAT TYPE STRING,
PLTYP TYPE STRING,
EVENT TYPE STRING,
ENRTY TYPE STRING,
BPLAN TYPE STRING,
COPLN TYPE STRING,
COCAT TYPE STRING,
COTYP TYPE STRING,
ALLPL TYPE STRING,
TXT_COPLN TYPE STRING,
DUMMY_COREQ_INCL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HCMFAB_S_ENRO_COREQUISITE_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_HCMFAB_S_ENRO_COREQUISITE_STR-PERNR sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-DATUM sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-BEGDA sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-ENDDA sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-SPRPS sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-BAREA sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-BPCAT sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-PLTYP sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-EVENT sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-ENRTY sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-BPLAN sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-COPLN sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-COCAT sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-COTYP sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-ALLPL sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-TXT_COPLN sy-vline 
WA_HCMFAB_S_ENRO_COREQUISITE_STR-DUMMY_COREQ_INCL sy-vline      INTO ld_text SEPARATED BY SPACE.

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