ABAP Select data from SAP table /SAPAPO/VM_FRES 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 /SAPAPO/VM_FRES 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 /SAPAPO/VM_FRES. 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 /SAPAPO/VM_FRES 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_/SAPAPO/VM_FRES TYPE STANDARD TABLE OF /SAPAPO/VM_FRES,
      WA_/SAPAPO/VM_FRES TYPE /SAPAPO/VM_FRES,
      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: </SAPAPO/VM_FRES> TYPE /SAPAPO/VM_FRES.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/VM_FRES
  INTO TABLE IT_/SAPAPO/VM_FRES.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/VM_FRES
*  INTO TABLE @DATA(IT_/SAPAPO/VM_FRES2).
*--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_/SAPAPO/VM_FRES INDEX 1 INTO DATA(WA_/SAPAPO/VM_FRES2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/VM_FRES ASSIGNING </SAPAPO/VM_FRES>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/VM_FRES>-MANDT = 1.
</SAPAPO/VM_FRES>-VERSNO = 1.
</SAPAPO/VM_FRES>-PLANLAYOUT = 1.
</SAPAPO/VM_FRES>-PLANVIEW = 1.
</SAPAPO/VM_FRES>-MAKRO = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/VM_FRES INTO WA_/SAPAPO/VM_FRES.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/VM_FRES-STEP, sy-vline,
  WA_/SAPAPO/VM_FRES-SUBSTEP, sy-vline,
  WA_/SAPAPO/VM_FRES-TREEPOSITION, sy-vline,
  WA_/SAPAPO/VM_FRES-FUNSTRING, sy-vline,
  WA_/SAPAPO/VM_FRES-STRINGTYPE, sy-vline,
  WA_/SAPAPO/VM_FRES-KEYFS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/VM_FRES 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_/SAPAPO/VM_FRES 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_/SAPAPO/VM_FRES INTO WA_/SAPAPO/VM_FRES.


*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 SXIDN, internal->external for field MAIL_REC_NAME
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/VM_FRES-MAIL_REC_NAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/VM_FRES-MAIL_REC_NAME.
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_/SAPAPO/VM_FRES_STR, 
MANDT TYPE STRING,
VERSNO TYPE STRING,
PLANLAYOUT TYPE STRING,
PLANVIEW TYPE STRING,
MAKRO TYPE STRING,
STEP TYPE STRING,
SUBSTEP TYPE STRING,
TREEPOSITION TYPE STRING,
FUNSTRING TYPE STRING,
STRINGTYPE TYPE STRING,
KEYFS TYPE STRING,
X_LINE TYPE STRING,
X_COLUMN TYPE STRING,
C_OFFSET TYPE STRING,
C_BORDER TYPE STRING,
NO_OVERRIDE TYPE STRING,
CALC_ERROR TYPE STRING,
FLG_INACTIVE TYPE STRING,
AREA_WRITE TYPE STRING,
AOT TYPE STRING,
AT_ID TYPE STRING,
AT_BUCKET TYPE STRING,
AT_ACTIVITY TYPE STRING,
AT_PBOOK TYPE STRING,
AT_PVIEW TYPE STRING,
AT_MAKRO TYPE STRING,
AT_SDP_BOOK TYPE STRING,
AT_SDP_VIEW TYPE STRING,
MSG_TYPE TYPE STRING,
DOC_VAR_ID TYPE STRING,
DOC_VER_NO TYPE STRING,
DOC_ID TYPE STRING,
MAIL_EXPRESS TYPE STRING,
MAIL_ATTACH TYPE STRING,
MAIL_SENDER TYPE STRING,
MAIL_ZAV TYPE STRING,
MAIL_REC_NAME TYPE STRING,
MAIL_REC_TYPID TYPE STRING,
MAIL_HEADER TYPE STRING,
PRIORITY TYPE STRING,
V_DURATION TYPE STRING,
ATTRIBUTES TYPE STRING,
KEYF_CHANGE_MODE TYPE STRING,
GRIDNR TYPE STRING,
DEBUG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/VM_FRES_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_/SAPAPO/VM_FRES_STR-MANDT sy-vline 
WA_/SAPAPO/VM_FRES_STR-VERSNO sy-vline 
WA_/SAPAPO/VM_FRES_STR-PLANLAYOUT sy-vline 
WA_/SAPAPO/VM_FRES_STR-PLANVIEW sy-vline 
WA_/SAPAPO/VM_FRES_STR-MAKRO sy-vline 
WA_/SAPAPO/VM_FRES_STR-STEP sy-vline 
WA_/SAPAPO/VM_FRES_STR-SUBSTEP sy-vline 
WA_/SAPAPO/VM_FRES_STR-TREEPOSITION sy-vline 
WA_/SAPAPO/VM_FRES_STR-FUNSTRING sy-vline 
WA_/SAPAPO/VM_FRES_STR-STRINGTYPE sy-vline 
WA_/SAPAPO/VM_FRES_STR-KEYFS sy-vline 
WA_/SAPAPO/VM_FRES_STR-X_LINE sy-vline 
WA_/SAPAPO/VM_FRES_STR-X_COLUMN sy-vline 
WA_/SAPAPO/VM_FRES_STR-C_OFFSET sy-vline 
WA_/SAPAPO/VM_FRES_STR-C_BORDER sy-vline 
WA_/SAPAPO/VM_FRES_STR-NO_OVERRIDE sy-vline 
WA_/SAPAPO/VM_FRES_STR-CALC_ERROR sy-vline 
WA_/SAPAPO/VM_FRES_STR-FLG_INACTIVE sy-vline 
WA_/SAPAPO/VM_FRES_STR-AREA_WRITE sy-vline 
WA_/SAPAPO/VM_FRES_STR-AOT sy-vline 
WA_/SAPAPO/VM_FRES_STR-AT_ID sy-vline 
WA_/SAPAPO/VM_FRES_STR-AT_BUCKET sy-vline 
WA_/SAPAPO/VM_FRES_STR-AT_ACTIVITY sy-vline 
WA_/SAPAPO/VM_FRES_STR-AT_PBOOK sy-vline 
WA_/SAPAPO/VM_FRES_STR-AT_PVIEW sy-vline 
WA_/SAPAPO/VM_FRES_STR-AT_MAKRO sy-vline 
WA_/SAPAPO/VM_FRES_STR-AT_SDP_BOOK sy-vline 
WA_/SAPAPO/VM_FRES_STR-AT_SDP_VIEW sy-vline 
WA_/SAPAPO/VM_FRES_STR-MSG_TYPE sy-vline 
WA_/SAPAPO/VM_FRES_STR-DOC_VAR_ID sy-vline 
WA_/SAPAPO/VM_FRES_STR-DOC_VER_NO sy-vline 
WA_/SAPAPO/VM_FRES_STR-DOC_ID sy-vline 
WA_/SAPAPO/VM_FRES_STR-MAIL_EXPRESS sy-vline 
WA_/SAPAPO/VM_FRES_STR-MAIL_ATTACH sy-vline 
WA_/SAPAPO/VM_FRES_STR-MAIL_SENDER sy-vline 
WA_/SAPAPO/VM_FRES_STR-MAIL_ZAV sy-vline 
WA_/SAPAPO/VM_FRES_STR-MAIL_REC_NAME sy-vline 
WA_/SAPAPO/VM_FRES_STR-MAIL_REC_TYPID sy-vline 
WA_/SAPAPO/VM_FRES_STR-MAIL_HEADER sy-vline 
WA_/SAPAPO/VM_FRES_STR-PRIORITY sy-vline 
WA_/SAPAPO/VM_FRES_STR-V_DURATION sy-vline 
WA_/SAPAPO/VM_FRES_STR-ATTRIBUTES sy-vline 
WA_/SAPAPO/VM_FRES_STR-KEYF_CHANGE_MODE sy-vline 
WA_/SAPAPO/VM_FRES_STR-GRIDNR sy-vline 
WA_/SAPAPO/VM_FRES_STR-DEBUG sy-vline      INTO ld_text SEPARATED BY SPACE.

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