ABAP Select data from SAP table T77WWW_GACDPV into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP T77WWW_GACDPV 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_GACDPV. 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_GACDPV 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_GACDPV TYPE STANDARD TABLE OF T77WWW_GACDPV,
      WA_T77WWW_GACDPV TYPE T77WWW_GACDPV,
      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_GACDPV> TYPE T77WWW_GACDPV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T77WWW_GACDPV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T77WWW_GACDPV
  INTO TABLE IT_T77WWW_GACDPV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T77WWW_GACDPV
*  INTO TABLE @DATA(IT_T77WWW_GACDPV2).
*--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_GACDPV INDEX 1 INTO DATA(WA_T77WWW_GACDPV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T77WWW_GACDPV ASSIGNING <T77WWW_GACDPV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T77WWW_GACDPV>-MANDT = 1.
<T77WWW_GACDPV>-APPNO = 1.
<T77WWW_GACDPV>-GATYP = 1.
<T77WWW_GACDPV>-TSR01 = 1.
<T77WWW_GACDPV>-TSR02 = 1.

ENDLOOP.

LOOP AT IT_T77WWW_GACDPV INTO WA_T77WWW_GACDPV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T77WWW_GACDPV-ENDDA, sy-vline,
  WA_T77WWW_GACDPV-BEGDA, sy-vline,
  WA_T77WWW_GACDPV-E_ISSEL, sy-vline,
  WA_T77WWW_GACDPV-E_ISCLD, sy-vline,
  WA_T77WWW_GACDPV-E_FAMSA, sy-vline,
  WA_T77WWW_GACDPV-E_FAMTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T77WWW_GACDPV 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_GACDPV 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_GACDPV INTO WA_T77WWW_GACDPV.


*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_T77WWW_GACDPV_STR, 
MANDT TYPE STRING,
APPNO TYPE STRING,
GATYP TYPE STRING,
TSR01 TYPE STRING,
TSR02 TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
E_ISSEL TYPE STRING,
E_ISCLD TYPE STRING,
E_FAMSA TYPE STRING,
E_FAMTX TYPE STRING,
E_OBJPS TYPE STRING,
E_FAOBJ TYPE STRING,
E_FGBDT TYPE STRING,
E_FGBLD TYPE STRING,
E_FGBTX TYPE STRING,
E_FANAT TYPE STRING,
E_FANTX TYPE STRING,
E_FASEX TYPE STRING,
E_FAVOR TYPE STRING,
E_FANAM TYPE STRING,
E_FCNAM TYPE STRING,
E_AGE_Y TYPE STRING,
E_AGE_M TYPE STRING,
E_AGE_D TYPE STRING,
E_DISAB TYPE STRING,
E_FAMST TYPE STRING,
E_FAMTE TYPE STRING,
E_AINCD TYPE STRING,
E_DWAER TYPE STRING,
A_ISSEL TYPE STRING,
A_ISCLD TYPE STRING,
A_FAMSA TYPE STRING,
A_FAMTX TYPE STRING,
A_OBJPS TYPE STRING,
A_FAOBJ TYPE STRING,
A_FGBDT TYPE STRING,
A_FGBLD TYPE STRING,
A_FGBTX TYPE STRING,
A_FANAT TYPE STRING,
A_FANTX TYPE STRING,
A_FASEX TYPE STRING,
A_FAVOR TYPE STRING,
A_FANAM TYPE STRING,
A_FCNAM TYPE STRING,
A_AGE_Y TYPE STRING,
A_AGE_M TYPE STRING,
A_AGE_D TYPE STRING,
A_DISAB TYPE STRING,
A_FAMST TYPE STRING,
A_FAMTE TYPE STRING,
A_AINCD TYPE STRING,
A_DWAER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T77WWW_GACDPV_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_GACDPV_STR-MANDT sy-vline 
WA_T77WWW_GACDPV_STR-APPNO sy-vline 
WA_T77WWW_GACDPV_STR-GATYP sy-vline 
WA_T77WWW_GACDPV_STR-TSR01 sy-vline 
WA_T77WWW_GACDPV_STR-TSR02 sy-vline 
WA_T77WWW_GACDPV_STR-ENDDA sy-vline 
WA_T77WWW_GACDPV_STR-BEGDA sy-vline 
WA_T77WWW_GACDPV_STR-E_ISSEL sy-vline 
WA_T77WWW_GACDPV_STR-E_ISCLD sy-vline 
WA_T77WWW_GACDPV_STR-E_FAMSA sy-vline 
WA_T77WWW_GACDPV_STR-E_FAMTX sy-vline 
WA_T77WWW_GACDPV_STR-E_OBJPS sy-vline 
WA_T77WWW_GACDPV_STR-E_FAOBJ sy-vline 
WA_T77WWW_GACDPV_STR-E_FGBDT sy-vline 
WA_T77WWW_GACDPV_STR-E_FGBLD sy-vline 
WA_T77WWW_GACDPV_STR-E_FGBTX sy-vline 
WA_T77WWW_GACDPV_STR-E_FANAT sy-vline 
WA_T77WWW_GACDPV_STR-E_FANTX sy-vline 
WA_T77WWW_GACDPV_STR-E_FASEX sy-vline 
WA_T77WWW_GACDPV_STR-E_FAVOR sy-vline 
WA_T77WWW_GACDPV_STR-E_FANAM sy-vline 
WA_T77WWW_GACDPV_STR-E_FCNAM sy-vline 
WA_T77WWW_GACDPV_STR-E_AGE_Y sy-vline 
WA_T77WWW_GACDPV_STR-E_AGE_M sy-vline 
WA_T77WWW_GACDPV_STR-E_AGE_D sy-vline 
WA_T77WWW_GACDPV_STR-E_DISAB sy-vline 
WA_T77WWW_GACDPV_STR-E_FAMST sy-vline 
WA_T77WWW_GACDPV_STR-E_FAMTE sy-vline 
WA_T77WWW_GACDPV_STR-E_AINCD sy-vline 
WA_T77WWW_GACDPV_STR-E_DWAER sy-vline 
WA_T77WWW_GACDPV_STR-A_ISSEL sy-vline 
WA_T77WWW_GACDPV_STR-A_ISCLD sy-vline 
WA_T77WWW_GACDPV_STR-A_FAMSA sy-vline 
WA_T77WWW_GACDPV_STR-A_FAMTX sy-vline 
WA_T77WWW_GACDPV_STR-A_OBJPS sy-vline 
WA_T77WWW_GACDPV_STR-A_FAOBJ sy-vline 
WA_T77WWW_GACDPV_STR-A_FGBDT sy-vline 
WA_T77WWW_GACDPV_STR-A_FGBLD sy-vline 
WA_T77WWW_GACDPV_STR-A_FGBTX sy-vline 
WA_T77WWW_GACDPV_STR-A_FANAT sy-vline 
WA_T77WWW_GACDPV_STR-A_FANTX sy-vline 
WA_T77WWW_GACDPV_STR-A_FASEX sy-vline 
WA_T77WWW_GACDPV_STR-A_FAVOR sy-vline 
WA_T77WWW_GACDPV_STR-A_FANAM sy-vline 
WA_T77WWW_GACDPV_STR-A_FCNAM sy-vline 
WA_T77WWW_GACDPV_STR-A_AGE_Y sy-vline 
WA_T77WWW_GACDPV_STR-A_AGE_M sy-vline 
WA_T77WWW_GACDPV_STR-A_AGE_D sy-vline 
WA_T77WWW_GACDPV_STR-A_DISAB sy-vline 
WA_T77WWW_GACDPV_STR-A_FAMST sy-vline 
WA_T77WWW_GACDPV_STR-A_FAMTE sy-vline 
WA_T77WWW_GACDPV_STR-A_AINCD sy-vline 
WA_T77WWW_GACDPV_STR-A_DWAER sy-vline      INTO ld_text SEPARATED BY SPACE.

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