ABAP Select data from SAP table H_EPROFHEAD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM H_EPROFHEAD
*  INTO TABLE @DATA(IT_H_EPROFHEAD2).
*--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_H_EPROFHEAD INDEX 1 INTO DATA(WA_H_EPROFHEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<H_EPROFHEAD>-MANDT = 1.
<H_EPROFHEAD>-PROFILE = 1.
<H_EPROFHEAD>-SPRAS = 1.
<H_EPROFHEAD>-PROFTEXT = 1.
<H_EPROFHEAD>-SPARTE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_H_EPROFHEAD-PROFTYPE, sy-vline,
  WA_H_EPROFHEAD-PROFVALCAT, sy-vline,
  WA_H_EPROFHEAD-INTSIZEID, sy-vline,
  WA_H_EPROFHEAD-MASS, sy-vline,
  WA_H_EPROFHEAD-PROFCAT, sy-vline,
  WA_H_EPROFHEAD-DAY_OFFSET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_H_EPROFHEAD 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_H_EPROFHEAD 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_H_EPROFHEAD INTO WA_H_EPROFHEAD.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_H_EPROFHEAD-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_H_EPROFHEAD-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MASS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_H_EPROFHEAD-MASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_H_EPROFHEAD-MASS.
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_H_EPROFHEAD_STR, 
MANDT TYPE STRING,
PROFILE TYPE STRING,
SPRAS TYPE STRING,
PROFTEXT TYPE STRING,
SPARTE TYPE STRING,
PROFTYPE TYPE STRING,
PROFVALCAT TYPE STRING,
INTSIZEID TYPE STRING,
MASS TYPE STRING,
PROFCAT TYPE STRING,
DAY_OFFSET TYPE STRING,
TIME_ZONE TYPE STRING,
MDUS_LOCATED TYPE STRING,
TOU_BILLABLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_H_EPROFHEAD_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_H_EPROFHEAD_STR-MANDT sy-vline 
WA_H_EPROFHEAD_STR-PROFILE sy-vline 
WA_H_EPROFHEAD_STR-SPRAS sy-vline 
WA_H_EPROFHEAD_STR-PROFTEXT sy-vline 
WA_H_EPROFHEAD_STR-SPARTE sy-vline 
WA_H_EPROFHEAD_STR-PROFTYPE sy-vline 
WA_H_EPROFHEAD_STR-PROFVALCAT sy-vline 
WA_H_EPROFHEAD_STR-INTSIZEID sy-vline 
WA_H_EPROFHEAD_STR-MASS sy-vline 
WA_H_EPROFHEAD_STR-PROFCAT sy-vline 
WA_H_EPROFHEAD_STR-DAY_OFFSET sy-vline 
WA_H_EPROFHEAD_STR-TIME_ZONE sy-vline 
WA_H_EPROFHEAD_STR-MDUS_LOCATED sy-vline 
WA_H_EPROFHEAD_STR-TOU_BILLABLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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