ABAP Select data from SAP table FAAV_M_AANL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAAV_M_AANL
*  INTO TABLE @DATA(IT_FAAV_M_AANL2).
*--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_FAAV_M_AANL INDEX 1 INTO DATA(WA_FAAV_M_AANL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAAV_M_AANL>-MANDT = 1.
<FAAV_M_AANL>-BUKRS = 1.
<FAAV_M_AANL>-ANLN1 = 1.
<FAAV_M_AANL>-ANLN2 = 1.
<FAAV_M_AANL>-ANLKL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAAV_M_AANL-MCOA1, sy-vline,
  WA_FAAV_M_AANL-INVNR, sy-vline,
  WA_FAAV_M_AANL-KTOGR, sy-vline,
  WA_FAAV_M_AANL-XANLGR, sy-vline,
  WA_FAAV_M_AANL-EAUFN, sy-vline,
  WA_FAAV_M_AANL-POSNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAAV_M_AANL 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_FAAV_M_AANL 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_FAAV_M_AANL INTO WA_FAAV_M_AANL.


*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 ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_M_AANL-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_M_AANL-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_M_AANL-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_M_AANL-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLKL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_M_AANL-ANLKL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_M_AANL-ANLKL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KTOGR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_M_AANL-KTOGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_M_AANL-KTOGR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EAUFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_M_AANL-EAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_M_AANL-EAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_M_AANL-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_M_AANL-POSNR.
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_FAAV_M_AANL_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
ANLKL TYPE STRING,
MCOA1 TYPE STRING,
INVNR TYPE STRING,
KTOGR TYPE STRING,
XANLGR TYPE STRING,
EAUFN TYPE STRING,
POSNR TYPE STRING,
GRUND TYPE STRING,
ASSETAUTHORIZATIONCONTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAAV_M_AANL_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_FAAV_M_AANL_STR-MANDT sy-vline 
WA_FAAV_M_AANL_STR-BUKRS sy-vline 
WA_FAAV_M_AANL_STR-ANLN1 sy-vline 
WA_FAAV_M_AANL_STR-ANLN2 sy-vline 
WA_FAAV_M_AANL_STR-ANLKL sy-vline 
WA_FAAV_M_AANL_STR-MCOA1 sy-vline 
WA_FAAV_M_AANL_STR-INVNR sy-vline 
WA_FAAV_M_AANL_STR-KTOGR sy-vline 
WA_FAAV_M_AANL_STR-XANLGR sy-vline 
WA_FAAV_M_AANL_STR-EAUFN sy-vline 
WA_FAAV_M_AANL_STR-POSNR sy-vline 
WA_FAAV_M_AANL_STR-GRUND sy-vline 
WA_FAAV_M_AANL_STR-ASSETAUTHORIZATIONCONTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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