ABAP Select data from SAP table EFG_STR_ERRORFORM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EFG_STR_ERRORFORM
*  INTO TABLE @DATA(IT_EFG_STR_ERRORFORM2).
*--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_EFG_STR_ERRORFORM INDEX 1 INTO DATA(WA_EFG_STR_ERRORFORM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EFG_STR_ERRORFORM>-CLIENT = 1.
<EFG_STR_ERRORFORM>-FORMKEY = 1.
<EFG_STR_ERRORFORM>-MSG = 1.
<EFG_STR_ERRORFORM>-MSGTY = 1.
<EFG_STR_ERRORFORM>-MSGNO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EFG_STR_ERRORFORM-MSGID, sy-vline,
  WA_EFG_STR_ERRORFORM-MSGV1, sy-vline,
  WA_EFG_STR_ERRORFORM-MSGV2, sy-vline,
  WA_EFG_STR_ERRORFORM-MSGV3, sy-vline,
  WA_EFG_STR_ERRORFORM-MSGV4, sy-vline,
  WA_EFG_STR_ERRORFORM-EXCEPTION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EFG_STR_ERRORFORM 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_EFG_STR_ERRORFORM 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_EFG_STR_ERRORFORM INTO WA_EFG_STR_ERRORFORM.


*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_EFG_STR_ERRORFORM_STR, 
CLIENT TYPE STRING,
FORMKEY TYPE STRING,
MSG TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
MSGID TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
EXCEPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EFG_STR_ERRORFORM_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_EFG_STR_ERRORFORM_STR-CLIENT sy-vline 
WA_EFG_STR_ERRORFORM_STR-FORMKEY sy-vline 
WA_EFG_STR_ERRORFORM_STR-MSG sy-vline 
WA_EFG_STR_ERRORFORM_STR-MSGTY sy-vline 
WA_EFG_STR_ERRORFORM_STR-MSGNO sy-vline 
WA_EFG_STR_ERRORFORM_STR-MSGID sy-vline 
WA_EFG_STR_ERRORFORM_STR-MSGV1 sy-vline 
WA_EFG_STR_ERRORFORM_STR-MSGV2 sy-vline 
WA_EFG_STR_ERRORFORM_STR-MSGV3 sy-vline 
WA_EFG_STR_ERRORFORM_STR-MSGV4 sy-vline 
WA_EFG_STR_ERRORFORM_STR-EXCEPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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