ABAP Select data from SAP table EFRMTRLST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EFRMTRLST
*  INTO TABLE @DATA(IT_EFRMTRLST2).
*--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_EFRMTRLST INDEX 1 INTO DATA(WA_EFRMTRLST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EFRMTRLST>-CLIENT = 1.
<EFRMTRLST>-EDATE = 1.
<EFRMTRLST>-IDENTIFIER = 1.
<EFRMTRLST>-ERDAT = 1.
<EFRMTRLST>-ERNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EFRMTRLST-ERSAP, sy-vline,
  WA_EFRMTRLST-AEDAT, sy-vline,
  WA_EFRMTRLST-AENAM, sy-vline,
  WA_EFRMTRLST-AEUZEIT, sy-vline,
  WA_EFRMTRLST-AESAP, sy-vline,
  WA_EFRMTRLST-STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EFRMTRLST 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_EFRMTRLST 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_EFRMTRLST INTO WA_EFRMTRLST.


*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 TRLST, internal->external for field STATUS
CALL FUNCTION 'CONVERSION_EXIT_TRLST_OUTPUT'
  EXPORTING
    input =                      WA_EFRMTRLST-STATUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFRMTRLST-STATUS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field TLANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_EFRMTRLST-TLANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFRMTRLST-TLANGU.
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_EFRMTRLST_STR, 
CLIENT TYPE STRING,
EDATE TYPE STRING,
IDENTIFIER TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
ERSAP TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
AEUZEIT TYPE STRING,
AESAP TYPE STRING,
STATUS TYPE STRING,
OLANGU TYPE STRING,
TLANGU TYPE STRING,
DESCRIPT TYPE STRING,
RESPONSIBLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EFRMTRLST_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_EFRMTRLST_STR-CLIENT sy-vline 
WA_EFRMTRLST_STR-EDATE sy-vline 
WA_EFRMTRLST_STR-IDENTIFIER sy-vline 
WA_EFRMTRLST_STR-ERDAT sy-vline 
WA_EFRMTRLST_STR-ERNAM sy-vline 
WA_EFRMTRLST_STR-ERSAP sy-vline 
WA_EFRMTRLST_STR-AEDAT sy-vline 
WA_EFRMTRLST_STR-AENAM sy-vline 
WA_EFRMTRLST_STR-AEUZEIT sy-vline 
WA_EFRMTRLST_STR-AESAP sy-vline 
WA_EFRMTRLST_STR-STATUS sy-vline 
WA_EFRMTRLST_STR-OLANGU sy-vline 
WA_EFRMTRLST_STR-TLANGU sy-vline 
WA_EFRMTRLST_STR-DESCRIPT sy-vline 
WA_EFRMTRLST_STR-RESPONSIBLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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