ABAP Select data from SAP table E1KEVA6 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1KEVA6 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 E1KEVA6. 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 E1KEVA6 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_E1KEVA6 TYPE STANDARD TABLE OF E1KEVA6,
      WA_E1KEVA6 TYPE E1KEVA6,
      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: <E1KEVA6> TYPE E1KEVA6.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1KEVA6.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1KEVA6
  INTO TABLE IT_E1KEVA6.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1KEVA6
*  INTO TABLE @DATA(IT_E1KEVA62).
*--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_E1KEVA6 INDEX 1 INTO DATA(WA_E1KEVA62).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1KEVA6 ASSIGNING <E1KEVA6>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1KEVA6>-VAL251 = 1.
<E1KEVA6>-VAL252 = 1.
<E1KEVA6>-VAL253 = 1.
<E1KEVA6>-VAL254 = 1.
<E1KEVA6>-VAL255 = 1.

ENDLOOP.

LOOP AT IT_E1KEVA6 INTO WA_E1KEVA6.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1KEVA6-VAL256, sy-vline,
  WA_E1KEVA6-VAL257, sy-vline,
  WA_E1KEVA6-VAL258, sy-vline,
  WA_E1KEVA6-VAL259, sy-vline,
  WA_E1KEVA6-VAL260, sy-vline,
  WA_E1KEVA6-VAL261, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1KEVA6 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_E1KEVA6 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_E1KEVA6 INTO WA_E1KEVA6.


*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_E1KEVA6_STR, 
VAL251 TYPE STRING,
VAL252 TYPE STRING,
VAL253 TYPE STRING,
VAL254 TYPE STRING,
VAL255 TYPE STRING,
VAL256 TYPE STRING,
VAL257 TYPE STRING,
VAL258 TYPE STRING,
VAL259 TYPE STRING,
VAL260 TYPE STRING,
VAL261 TYPE STRING,
VAL262 TYPE STRING,
VAL263 TYPE STRING,
VAL264 TYPE STRING,
VAL265 TYPE STRING,
VAL266 TYPE STRING,
VAL267 TYPE STRING,
VAL268 TYPE STRING,
VAL269 TYPE STRING,
VAL270 TYPE STRING,
VAL271 TYPE STRING,
VAL272 TYPE STRING,
VAL273 TYPE STRING,
VAL274 TYPE STRING,
VAL275 TYPE STRING,
VAL276 TYPE STRING,
VAL277 TYPE STRING,
VAL278 TYPE STRING,
VAL279 TYPE STRING,
VAL280 TYPE STRING,
VAL281 TYPE STRING,
VAL282 TYPE STRING,
VAL283 TYPE STRING,
VAL284 TYPE STRING,
VAL285 TYPE STRING,
VAL286 TYPE STRING,
VAL287 TYPE STRING,
VAL288 TYPE STRING,
VAL289 TYPE STRING,
VAL290 TYPE STRING,
VAL291 TYPE STRING,
VAL292 TYPE STRING,
VAL293 TYPE STRING,
VAL294 TYPE STRING,
VAL295 TYPE STRING,
VAL296 TYPE STRING,
VAL297 TYPE STRING,
VAL298 TYPE STRING,
VAL299 TYPE STRING,
VAL300 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1KEVA6_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_E1KEVA6_STR-VAL251 sy-vline 
WA_E1KEVA6_STR-VAL252 sy-vline 
WA_E1KEVA6_STR-VAL253 sy-vline 
WA_E1KEVA6_STR-VAL254 sy-vline 
WA_E1KEVA6_STR-VAL255 sy-vline 
WA_E1KEVA6_STR-VAL256 sy-vline 
WA_E1KEVA6_STR-VAL257 sy-vline 
WA_E1KEVA6_STR-VAL258 sy-vline 
WA_E1KEVA6_STR-VAL259 sy-vline 
WA_E1KEVA6_STR-VAL260 sy-vline 
WA_E1KEVA6_STR-VAL261 sy-vline 
WA_E1KEVA6_STR-VAL262 sy-vline 
WA_E1KEVA6_STR-VAL263 sy-vline 
WA_E1KEVA6_STR-VAL264 sy-vline 
WA_E1KEVA6_STR-VAL265 sy-vline 
WA_E1KEVA6_STR-VAL266 sy-vline 
WA_E1KEVA6_STR-VAL267 sy-vline 
WA_E1KEVA6_STR-VAL268 sy-vline 
WA_E1KEVA6_STR-VAL269 sy-vline 
WA_E1KEVA6_STR-VAL270 sy-vline 
WA_E1KEVA6_STR-VAL271 sy-vline 
WA_E1KEVA6_STR-VAL272 sy-vline 
WA_E1KEVA6_STR-VAL273 sy-vline 
WA_E1KEVA6_STR-VAL274 sy-vline 
WA_E1KEVA6_STR-VAL275 sy-vline 
WA_E1KEVA6_STR-VAL276 sy-vline 
WA_E1KEVA6_STR-VAL277 sy-vline 
WA_E1KEVA6_STR-VAL278 sy-vline 
WA_E1KEVA6_STR-VAL279 sy-vline 
WA_E1KEVA6_STR-VAL280 sy-vline 
WA_E1KEVA6_STR-VAL281 sy-vline 
WA_E1KEVA6_STR-VAL282 sy-vline 
WA_E1KEVA6_STR-VAL283 sy-vline 
WA_E1KEVA6_STR-VAL284 sy-vline 
WA_E1KEVA6_STR-VAL285 sy-vline 
WA_E1KEVA6_STR-VAL286 sy-vline 
WA_E1KEVA6_STR-VAL287 sy-vline 
WA_E1KEVA6_STR-VAL288 sy-vline 
WA_E1KEVA6_STR-VAL289 sy-vline 
WA_E1KEVA6_STR-VAL290 sy-vline 
WA_E1KEVA6_STR-VAL291 sy-vline 
WA_E1KEVA6_STR-VAL292 sy-vline 
WA_E1KEVA6_STR-VAL293 sy-vline 
WA_E1KEVA6_STR-VAL294 sy-vline 
WA_E1KEVA6_STR-VAL295 sy-vline 
WA_E1KEVA6_STR-VAL296 sy-vline 
WA_E1KEVA6_STR-VAL297 sy-vline 
WA_E1KEVA6_STR-VAL298 sy-vline 
WA_E1KEVA6_STR-VAL299 sy-vline 
WA_E1KEVA6_STR-VAL300 sy-vline      INTO ld_text SEPARATED BY SPACE.

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