ABAP Select data from SAP table E2CRHDL into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E2CRHDL 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 E2CRHDL. 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 E2CRHDL 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_E2CRHDL TYPE STANDARD TABLE OF E2CRHDL,
      WA_E2CRHDL TYPE E2CRHDL,
      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: <E2CRHDL> TYPE E2CRHDL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E2CRHDL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E2CRHDL
  INTO TABLE IT_E2CRHDL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E2CRHDL
*  INTO TABLE @DATA(IT_E2CRHDL2).
*--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_E2CRHDL INDEX 1 INTO DATA(WA_E2CRHDL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E2CRHDL ASSIGNING <E2CRHDL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E2CRHDL>-MSGFN = 1.
<E2CRHDL>-OBJID = 1.
<E2CRHDL>-ARBPL = 1.
<E2CRHDL>-FORT1 = 1.
<E2CRHDL>-FORT2 = 1.

ENDLOOP.

LOOP AT IT_E2CRHDL INTO WA_E2CRHDL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E2CRHDL-FORT3, sy-vline,
  WA_E2CRHDL-FORTN, sy-vline,
  WA_E2CRHDL-KAPID, sy-vline,
  WA_E2CRHDL-ORTGR, sy-vline,
  WA_E2CRHDL-PAR01, sy-vline,
  WA_E2CRHDL-PAR02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E2CRHDL 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_E2CRHDL 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_E2CRHDL INTO WA_E2CRHDL.


*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_E2CRHDL_STR, 
MSGFN TYPE STRING,
OBJID TYPE STRING,
ARBPL TYPE STRING,
FORT1 TYPE STRING,
FORT2 TYPE STRING,
FORT3 TYPE STRING,
FORTN TYPE STRING,
KAPID TYPE STRING,
ORTGR TYPE STRING,
PAR01 TYPE STRING,
PAR02 TYPE STRING,
PAR03 TYPE STRING,
PAR04 TYPE STRING,
PAR05 TYPE STRING,
PAR06 TYPE STRING,
PARU1 TYPE STRING,
PARU2 TYPE STRING,
PARU3 TYPE STRING,
PARU4 TYPE STRING,
PARU5 TYPE STRING,
PARU6 TYPE STRING,
PARV1 TYPE STRING,
PARV2 TYPE STRING,
PARV3 TYPE STRING,
PARV4 TYPE STRING,
PARV5 TYPE STRING,
PARV6 TYPE STRING,
PLANV TYPE STRING,
STAND TYPE STRING,
VERAN TYPE STRING,
VGM01 TYPE STRING,
VGM02 TYPE STRING,
VGM03 TYPE STRING,
VGM04 TYPE STRING,
VGM05 TYPE STRING,
VGM06 TYPE STRING,
VGWTS TYPE STRING,
WERKS TYPE STRING,
ZGR01 TYPE STRING,
ZGR02 TYPE STRING,
ZGR03 TYPE STRING,
ZGR04 TYPE STRING,
ZGR05 TYPE STRING,
ZGR06 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E2CRHDL_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_E2CRHDL_STR-MSGFN sy-vline 
WA_E2CRHDL_STR-OBJID sy-vline 
WA_E2CRHDL_STR-ARBPL sy-vline 
WA_E2CRHDL_STR-FORT1 sy-vline 
WA_E2CRHDL_STR-FORT2 sy-vline 
WA_E2CRHDL_STR-FORT3 sy-vline 
WA_E2CRHDL_STR-FORTN sy-vline 
WA_E2CRHDL_STR-KAPID sy-vline 
WA_E2CRHDL_STR-ORTGR sy-vline 
WA_E2CRHDL_STR-PAR01 sy-vline 
WA_E2CRHDL_STR-PAR02 sy-vline 
WA_E2CRHDL_STR-PAR03 sy-vline 
WA_E2CRHDL_STR-PAR04 sy-vline 
WA_E2CRHDL_STR-PAR05 sy-vline 
WA_E2CRHDL_STR-PAR06 sy-vline 
WA_E2CRHDL_STR-PARU1 sy-vline 
WA_E2CRHDL_STR-PARU2 sy-vline 
WA_E2CRHDL_STR-PARU3 sy-vline 
WA_E2CRHDL_STR-PARU4 sy-vline 
WA_E2CRHDL_STR-PARU5 sy-vline 
WA_E2CRHDL_STR-PARU6 sy-vline 
WA_E2CRHDL_STR-PARV1 sy-vline 
WA_E2CRHDL_STR-PARV2 sy-vline 
WA_E2CRHDL_STR-PARV3 sy-vline 
WA_E2CRHDL_STR-PARV4 sy-vline 
WA_E2CRHDL_STR-PARV5 sy-vline 
WA_E2CRHDL_STR-PARV6 sy-vline 
WA_E2CRHDL_STR-PLANV sy-vline 
WA_E2CRHDL_STR-STAND sy-vline 
WA_E2CRHDL_STR-VERAN sy-vline 
WA_E2CRHDL_STR-VGM01 sy-vline 
WA_E2CRHDL_STR-VGM02 sy-vline 
WA_E2CRHDL_STR-VGM03 sy-vline 
WA_E2CRHDL_STR-VGM04 sy-vline 
WA_E2CRHDL_STR-VGM05 sy-vline 
WA_E2CRHDL_STR-VGM06 sy-vline 
WA_E2CRHDL_STR-VGWTS sy-vline 
WA_E2CRHDL_STR-WERKS sy-vline 
WA_E2CRHDL_STR-ZGR01 sy-vline 
WA_E2CRHDL_STR-ZGR02 sy-vline 
WA_E2CRHDL_STR-ZGR03 sy-vline 
WA_E2CRHDL_STR-ZGR04 sy-vline 
WA_E2CRHDL_STR-ZGR05 sy-vline 
WA_E2CRHDL_STR-ZGR06 sy-vline      INTO ld_text SEPARATED BY SPACE.

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