ABAP Select data from SAP table T77WWW_TEATO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T77WWW_TEATO 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 T77WWW_TEATO. 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 T77WWW_TEATO 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_T77WWW_TEATO TYPE STANDARD TABLE OF T77WWW_TEATO,
      WA_T77WWW_TEATO TYPE T77WWW_TEATO,
      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: <T77WWW_TEATO> TYPE T77WWW_TEATO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T77WWW_TEATO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T77WWW_TEATO
  INTO TABLE IT_T77WWW_TEATO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T77WWW_TEATO
*  INTO TABLE @DATA(IT_T77WWW_TEATO2).
*--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_T77WWW_TEATO INDEX 1 INTO DATA(WA_T77WWW_TEATO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T77WWW_TEATO ASSIGNING <T77WWW_TEATO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T77WWW_TEATO>-MANDT = 1.
<T77WWW_TEATO>-EARQN = 1.
<T77WWW_TEATO>-EASQN = 1.
<T77WWW_TEATO>-EAIBR = 1.
<T77WWW_TEATO>-EAIBU = 1.

ENDLOOP.

LOOP AT IT_T77WWW_TEATO INTO WA_T77WWW_TEATO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T77WWW_TEATO-EAIOD, sy-vline,
  WA_T77WWW_TEATO-EAIOT, sy-vline,
  WA_T77WWW_TEATO-EALBU, sy-vline,
  WA_T77WWW_TEATO-EALOD, sy-vline,
  WA_T77WWW_TEATO-EALOT, sy-vline,
  WA_T77WWW_TEATO-EATLV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T77WWW_TEATO 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_T77WWW_TEATO 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_T77WWW_TEATO INTO WA_T77WWW_TEATO.


*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 CUNIT, internal->external for field EAUNT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_T77WWW_TEATO-EAUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T77WWW_TEATO-EAUNT.
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_T77WWW_TEATO_STR, 
MANDT TYPE STRING,
EARQN TYPE STRING,
EASQN TYPE STRING,
EAIBR TYPE STRING,
EAIBU TYPE STRING,
EAIOD TYPE STRING,
EAIOT TYPE STRING,
EALBU TYPE STRING,
EALOD TYPE STRING,
EALOT TYPE STRING,
EATLV TYPE STRING,
EAITG TYPE STRING,
EATID TYPE STRING,
EATAN TYPE STRING,
EAPEC TYPE STRING,
EE_EAVIS TYPE STRING,
EATSD TYPE STRING,
EAOID TYPE STRING,
EAQTY TYPE STRING,
EAUNT TYPE STRING,
EAPPA TYPE STRING,
WEPPA TYPE STRING,
EAAPA TYPE STRING,
WEAPA TYPE STRING,
EAATS TYPE STRING,
EATOW TYPE STRING,
EADEP TYPE STRING,
EATST TYPE STRING,
EAWID TYPE STRING,
EATFN TYPE STRING,
EAFRZ TYPE STRING,
EAWFC TYPE STRING,
EAISQ TYPE STRING,
EAOSQ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T77WWW_TEATO_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_T77WWW_TEATO_STR-MANDT sy-vline 
WA_T77WWW_TEATO_STR-EARQN sy-vline 
WA_T77WWW_TEATO_STR-EASQN sy-vline 
WA_T77WWW_TEATO_STR-EAIBR sy-vline 
WA_T77WWW_TEATO_STR-EAIBU sy-vline 
WA_T77WWW_TEATO_STR-EAIOD sy-vline 
WA_T77WWW_TEATO_STR-EAIOT sy-vline 
WA_T77WWW_TEATO_STR-EALBU sy-vline 
WA_T77WWW_TEATO_STR-EALOD sy-vline 
WA_T77WWW_TEATO_STR-EALOT sy-vline 
WA_T77WWW_TEATO_STR-EATLV sy-vline 
WA_T77WWW_TEATO_STR-EAITG sy-vline 
WA_T77WWW_TEATO_STR-EATID sy-vline 
WA_T77WWW_TEATO_STR-EATAN sy-vline 
WA_T77WWW_TEATO_STR-EAPEC sy-vline 
WA_T77WWW_TEATO_STR-EE_EAVIS sy-vline 
WA_T77WWW_TEATO_STR-EATSD sy-vline 
WA_T77WWW_TEATO_STR-EAOID sy-vline 
WA_T77WWW_TEATO_STR-EAQTY sy-vline 
WA_T77WWW_TEATO_STR-EAUNT sy-vline 
WA_T77WWW_TEATO_STR-EAPPA sy-vline 
WA_T77WWW_TEATO_STR-WEPPA sy-vline 
WA_T77WWW_TEATO_STR-EAAPA sy-vline 
WA_T77WWW_TEATO_STR-WEAPA sy-vline 
WA_T77WWW_TEATO_STR-EAATS sy-vline 
WA_T77WWW_TEATO_STR-EATOW sy-vline 
WA_T77WWW_TEATO_STR-EADEP sy-vline 
WA_T77WWW_TEATO_STR-EATST sy-vline 
WA_T77WWW_TEATO_STR-EAWID sy-vline 
WA_T77WWW_TEATO_STR-EATFN sy-vline 
WA_T77WWW_TEATO_STR-EAFRZ sy-vline 
WA_T77WWW_TEATO_STR-EAWFC sy-vline 
WA_T77WWW_TEATO_STR-EAISQ sy-vline 
WA_T77WWW_TEATO_STR-EAOSQ sy-vline      INTO ld_text SEPARATED BY SPACE.

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