ABAP Select data from SAP table AEDTB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AEDTB
*  INTO TABLE @DATA(IT_AEDTB2).
*--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_AEDTB INDEX 1 INTO DATA(WA_AEDTB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AEDTB>-MANDT = 1.
<AEDTB>-AENNR = 1.
<AEDTB>-AEDTZ = 1.
<AEDTB>-DATUV = 1.
<AEDTB>-ANDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AEDTB-ANNAM, sy-vline,
  WA_AEDTB-AEDAT, sy-vline,
  WA_AEDTB-AENAM, sy-vline,
  WA_AEDTB-AEDTN, sy-vline,
  WA_AEDTB-AEDTO, sy-vline,
  WA_AEDTB-DBDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AEDTB 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_AEDTB 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_AEDTB INTO WA_AEDTB.


*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 ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AEDTB-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AEDTB-AENNR.
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_AEDTB_STR, 
MANDT TYPE STRING,
AENNR TYPE STRING,
AEDTZ TYPE STRING,
DATUV TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
AEDTN TYPE STRING,
AEDTO TYPE STRING,
DBDAT TYPE STRING,
SELKZ TYPE STRING,
AEANZ TYPE STRING,
VBKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AEDTB_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_AEDTB_STR-MANDT sy-vline 
WA_AEDTB_STR-AENNR sy-vline 
WA_AEDTB_STR-AEDTZ sy-vline 
WA_AEDTB_STR-DATUV sy-vline 
WA_AEDTB_STR-ANDAT sy-vline 
WA_AEDTB_STR-ANNAM sy-vline 
WA_AEDTB_STR-AEDAT sy-vline 
WA_AEDTB_STR-AENAM sy-vline 
WA_AEDTB_STR-AEDTN sy-vline 
WA_AEDTB_STR-AEDTO sy-vline 
WA_AEDTB_STR-DBDAT sy-vline 
WA_AEDTB_STR-SELKZ sy-vline 
WA_AEDTB_STR-AEANZ sy-vline 
WA_AEDTB_STR-VBKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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