ABAP Select data from SAP table EFGSTTXTOLINES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EFGSTTXTOLINES
*  INTO TABLE @DATA(IT_EFGSTTXTOLINES2).
*--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_EFGSTTXTOLINES INDEX 1 INTO DATA(WA_EFGSTTXTOLINES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EFGSTTXTOLINES>-MANDT = 1.
<EFGSTTXTOLINES>-TDID = 1.
<EFGSTTXTOLINES>-TEXT_NAME = 1.
<EFGSTTXTOLINES>-LANGU = 1.
<EFGSTTXTOLINES>-EFGLINENO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EFGSTTXTOLINES-TDFORMAT, sy-vline,
  WA_EFGSTTXTOLINES-TDLINE, sy-vline,
  WA_EFGSTTXTOLINES-OLANGU, sy-vline,
  WA_EFGSTTXTOLINES-ORIGID, sy-vline,
  WA_EFGSTTXTOLINES-AENAM, sy-vline,
  WA_EFGSTTXTOLINES-AEDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EFGSTTXTOLINES 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_EFGSTTXTOLINES 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_EFGSTTXTOLINES INTO WA_EFGSTTXTOLINES.


*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 LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_EFGSTTXTOLINES-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFGSTTXTOLINES-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field OLANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_EFGSTTXTOLINES-OLANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EFGSTTXTOLINES-OLANGU.
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_EFGSTTXTOLINES_STR, 
MANDT TYPE STRING,
TDID TYPE STRING,
TEXT_NAME TYPE STRING,
LANGU TYPE STRING,
EFGLINENO TYPE STRING,
TDFORMAT TYPE STRING,
TDLINE TYPE STRING,
OLANGU TYPE STRING,
ORIGID TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
RELDAT TYPE STRING,
RELNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EFGSTTXTOLINES_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_EFGSTTXTOLINES_STR-MANDT sy-vline 
WA_EFGSTTXTOLINES_STR-TDID sy-vline 
WA_EFGSTTXTOLINES_STR-TEXT_NAME sy-vline 
WA_EFGSTTXTOLINES_STR-LANGU sy-vline 
WA_EFGSTTXTOLINES_STR-EFGLINENO sy-vline 
WA_EFGSTTXTOLINES_STR-TDFORMAT sy-vline 
WA_EFGSTTXTOLINES_STR-TDLINE sy-vline 
WA_EFGSTTXTOLINES_STR-OLANGU sy-vline 
WA_EFGSTTXTOLINES_STR-ORIGID sy-vline 
WA_EFGSTTXTOLINES_STR-AENAM sy-vline 
WA_EFGSTTXTOLINES_STR-AEDAT sy-vline 
WA_EFGSTTXTOLINES_STR-RELDAT sy-vline 
WA_EFGSTTXTOLINES_STR-RELNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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