ABAP Select data from SAP table EHPRCS_USEAPI_ROW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHPRCS_USEAPI_ROW
*  INTO TABLE @DATA(IT_EHPRCS_USEAPI_ROW2).
*--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_EHPRCS_USEAPI_ROW INDEX 1 INTO DATA(WA_EHPRCS_USEAPI_ROW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHPRCS_USEAPI_ROW>-ROW = 1.
<EHPRCS_USEAPI_ROW>-MODE = 1.
<EHPRCS_USEAPI_ROW>-LOCKMOD = 1.
<EHPRCS_USEAPI_ROW>-RECN = 1.
<EHPRCS_USEAPI_ROW>-RECNVA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHPRCS_USEAPI_ROW-RECNVH, sy-vline,
  WA_EHPRCS_USEAPI_ROW-REF, sy-vline,
  WA_EHPRCS_USEAPI_ROW-ORD, sy-vline,
  WA_EHPRCS_USEAPI_ROW-SHORTTITLE, sy-vline,
  WA_EHPRCS_USEAPI_ROW-MAINUSERGRP, sy-vline,
  WA_EHPRCS_USEAPI_ROW-SECTOROFUSE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHPRCS_USEAPI_ROW 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_EHPRCS_USEAPI_ROW 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_EHPRCS_USEAPI_ROW INTO WA_EHPRCS_USEAPI_ROW.


*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 RECN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_USEAPI_ROW-RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_USEAPI_ROW-RECN.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field DOKNRUSE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHPRCS_USEAPI_ROW-DOKNRUSE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHPRCS_USEAPI_ROW-DOKNRUSE.
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_EHPRCS_USEAPI_ROW_STR, 
ROW TYPE STRING,
MODE TYPE STRING,
LOCKMOD TYPE STRING,
RECN TYPE STRING,
RECNVA TYPE STRING,
RECNVH TYPE STRING,
REF TYPE STRING,
ORD TYPE STRING,
SHORTTITLE TYPE STRING,
MAINUSERGRP TYPE STRING,
SECTOROFUSE TYPE STRING,
PRODUCTCAT TYPE STRING,
PROCESSCAT TYPE STRING,
ARTICLECAT TYPE STRING,
ENVRELEASE TYPE STRING,
ACTIVITIES TYPE STRING,
REGSTATUS TYPE STRING,
REGSTATUS_ICON TYPE STRING,
STATUSJUST TYPE STRING,
OWNUSE TYPE STRING,
STANDARDUSE TYPE STRING,
EXPOSURETEXT TYPE STRING,
REMARKS TYPE STRING,
CUSTOMERNR TYPE STRING,
MATERIALNR TYPE STRING,
DOKARUSE TYPE STRING,
DOKNRUSE TYPE STRING,
DOKVRUSE TYPE STRING,
DOKTLUSE TYPE STRING,
USEDASINTERMEDIATE TYPE STRING,
EVALSTATUS TYPE STRING,
LINKTOUSE TYPE STRING,
LINKTOUSE_CBX TYPE STRING,
LINKTOUSE_REMARK TYPE STRING,
ADD_CHAR_TAB TYPE STRING,
LINKGROUP_ICON TYPE STRING,
REF_INH_CODE TYPE STRING,
INPUT_CHECK_VALID TYPE STRING,
FLG_DATA_CHANGED TYPE STRING,
INPUT_CHECK_MSGS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHPRCS_USEAPI_ROW_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_EHPRCS_USEAPI_ROW_STR-ROW sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-MODE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-LOCKMOD sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-RECN sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-RECNVA sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-RECNVH sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-REF sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-ORD sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-SHORTTITLE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-MAINUSERGRP sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-SECTOROFUSE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-PRODUCTCAT sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-PROCESSCAT sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-ARTICLECAT sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-ENVRELEASE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-ACTIVITIES sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-REGSTATUS sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-REGSTATUS_ICON sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-STATUSJUST sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-OWNUSE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-STANDARDUSE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-EXPOSURETEXT sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-REMARKS sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-CUSTOMERNR sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-MATERIALNR sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-DOKARUSE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-DOKNRUSE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-DOKVRUSE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-DOKTLUSE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-USEDASINTERMEDIATE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-EVALSTATUS sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-LINKTOUSE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-LINKTOUSE_CBX sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-LINKTOUSE_REMARK sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-ADD_CHAR_TAB sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-LINKGROUP_ICON sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-REF_INH_CODE sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-INPUT_CHECK_VALID sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-FLG_DATA_CHANGED sy-vline 
WA_EHPRCS_USEAPI_ROW_STR-INPUT_CHECK_MSGS sy-vline      INTO ld_text SEPARATED BY SPACE.

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