ABAP Select data from SAP table FAAV_M_AANLC 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_AANLC 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_AANLC. 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_AANLC 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_AANLC TYPE STANDARD TABLE OF FAAV_M_AANLC,
      WA_FAAV_M_AANLC TYPE FAAV_M_AANLC,
      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_AANLC> TYPE FAAV_M_AANLC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FAAV_M_AANLC
*  INTO TABLE @DATA(IT_FAAV_M_AANLC2).
*--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_AANLC INDEX 1 INTO DATA(WA_FAAV_M_AANLC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FAAV_M_AANLC>-MANDT = 1.
<FAAV_M_AANLC>-BUKRS3 = 1.
<FAAV_M_AANLC>-ANLN1 = 1.
<FAAV_M_AANLC>-ANLN2 = 1.
<FAAV_M_AANLC>-ANLKL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FAAV_M_AANLC-KOSTL, sy-vline,
  WA_FAAV_M_AANLC-GSBER, sy-vline,
  WA_FAAV_M_AANLC-MCOA1, sy-vline,
  WA_FAAV_M_AANLC-BDATUZ, sy-vline,
  WA_FAAV_M_AANLC-ADATU, sy-vline,
  WA_FAAV_M_AANLC-WERKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FAAV_M_AANLC 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_AANLC 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_AANLC INTO WA_FAAV_M_AANLC.


*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_AANLC-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_M_AANLC-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_AANLC-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_M_AANLC-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_AANLC-ANLKL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_M_AANLC-ANLKL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FAAV_M_AANLC-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FAAV_M_AANLC-KOSTL.
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_AANLC_STR, 
MANDT TYPE STRING,
BUKRS3 TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
ANLKL TYPE STRING,
KOSTL TYPE STRING,
GSBER TYPE STRING,
MCOA1 TYPE STRING,
BDATUZ TYPE STRING,
ADATU TYPE STRING,
WERKS TYPE STRING,
ASSETAUTHORIZATIONCONTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FAAV_M_AANLC_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_AANLC_STR-MANDT sy-vline 
WA_FAAV_M_AANLC_STR-BUKRS3 sy-vline 
WA_FAAV_M_AANLC_STR-ANLN1 sy-vline 
WA_FAAV_M_AANLC_STR-ANLN2 sy-vline 
WA_FAAV_M_AANLC_STR-ANLKL sy-vline 
WA_FAAV_M_AANLC_STR-KOSTL sy-vline 
WA_FAAV_M_AANLC_STR-GSBER sy-vline 
WA_FAAV_M_AANLC_STR-MCOA1 sy-vline 
WA_FAAV_M_AANLC_STR-BDATUZ sy-vline 
WA_FAAV_M_AANLC_STR-ADATU sy-vline 
WA_FAAV_M_AANLC_STR-WERKS sy-vline 
WA_FAAV_M_AANLC_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.