ABAP Select data from SAP table AVILMPEEROA 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 AVILMPEEROA 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 AVILMPEEROA. 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 AVILMPEEROA 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_AVILMPEEROA TYPE STANDARD TABLE OF AVILMPEEROA,
      WA_AVILMPEEROA TYPE AVILMPEEROA,
      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: <AVILMPEEROA> TYPE AVILMPEEROA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AVILMPEEROA
*  INTO TABLE @DATA(IT_AVILMPEEROA2).
*--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_AVILMPEEROA INDEX 1 INTO DATA(WA_AVILMPEEROA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AVILMPEEROA>-MANDT = 1.
<AVILMPEEROA>-INTRENO = 1.
<AVILMPEEROA>-PEERNO = 1.
<AVILMPEEROA>-PEERSUBNO = 1.
<AVILMPEEROA>-PEEROANO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AVILMPEEROA-OBJNRTRG, sy-vline,
  WA_AVILMPEEROA-PLEXTIDENTKEY, sy-vline,
  WA_AVILMPEEROA-PEVALIDFROM, sy-vline,
  WA_AVILMPEEROA-PEVALIDTO, sy-vline,
  WA_AVILMPEEROA-KZ, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_AVILMPEEROA 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_AVILMPEEROA 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_AVILMPEEROA INTO WA_AVILMPEEROA.


*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 REDAT, internal->external for field PEVALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_AVILMPEEROA-PEVALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVILMPEEROA-PEVALIDTO.
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_AVILMPEEROA_STR, 
MANDT TYPE STRING,
INTRENO TYPE STRING,
PEERNO TYPE STRING,
PEERSUBNO TYPE STRING,
PEEROANO TYPE STRING,
OBJNRTRG TYPE STRING,
PLEXTIDENTKEY TYPE STRING,
PEVALIDFROM TYPE STRING,
PEVALIDTO TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AVILMPEEROA_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_AVILMPEEROA_STR-MANDT sy-vline 
WA_AVILMPEEROA_STR-INTRENO sy-vline 
WA_AVILMPEEROA_STR-PEERNO sy-vline 
WA_AVILMPEEROA_STR-PEERSUBNO sy-vline 
WA_AVILMPEEROA_STR-PEEROANO sy-vline 
WA_AVILMPEEROA_STR-OBJNRTRG sy-vline 
WA_AVILMPEEROA_STR-PLEXTIDENTKEY sy-vline 
WA_AVILMPEEROA_STR-PEVALIDFROM sy-vline 
WA_AVILMPEEROA_STR-PEVALIDTO sy-vline 
WA_AVILMPEEROA_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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