ABAP Select data from SAP table ANLVX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ANLVX
*  INTO TABLE @DATA(IT_ANLVX2).
*--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_ANLVX INDEX 1 INTO DATA(WA_ANLVX2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ANLVX-VSART, sy-vline,
  WA_ANLVX-VSIND, sy-vline,
  WA_ANLVX-VRSBA, sy-vline,
  WA_ANLVX-VSBAJ, sy-vline,
  WA_ANLVX-VSGES, sy-vline,
  WA_ANLVX-VSMAN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ANLVX 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_ANLVX 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_ANLVX INTO WA_ANLVX.


*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_ANLVX_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
VRSLFD TYPE STRING,
VSART TYPE STRING,
VSIND TYPE STRING,
VRSBA TYPE STRING,
VSBAJ TYPE STRING,
VSGES TYPE STRING,
VSMAN TYPE STRING,
VRSMA TYPE STRING,
VRSJH TYPE STRING,
VRSJA TYPE STRING,
VRSBG TYPE STRING,
VSTAR TYPE STRING,
VSSTX TYPE STRING,
SPRAS TYPE STRING,
XVRSID TYPE STRING,
VSZTX TYPE STRING,
ANUPD TYPE STRING,
LNRAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ANLVX_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_ANLVX_STR-MANDT sy-vline 
WA_ANLVX_STR-BUKRS sy-vline 
WA_ANLVX_STR-ANLN1 sy-vline 
WA_ANLVX_STR-ANLN2 sy-vline 
WA_ANLVX_STR-VRSLFD sy-vline 
WA_ANLVX_STR-VSART sy-vline 
WA_ANLVX_STR-VSIND sy-vline 
WA_ANLVX_STR-VRSBA sy-vline 
WA_ANLVX_STR-VSBAJ sy-vline 
WA_ANLVX_STR-VSGES sy-vline 
WA_ANLVX_STR-VSMAN sy-vline 
WA_ANLVX_STR-VRSMA sy-vline 
WA_ANLVX_STR-VRSJH sy-vline 
WA_ANLVX_STR-VRSJA sy-vline 
WA_ANLVX_STR-VRSBG sy-vline 
WA_ANLVX_STR-VSTAR sy-vline 
WA_ANLVX_STR-VSSTX sy-vline 
WA_ANLVX_STR-SPRAS sy-vline 
WA_ANLVX_STR-XVRSID sy-vline 
WA_ANLVX_STR-VSZTX sy-vline 
WA_ANLVX_STR-ANUPD sy-vline 
WA_ANLVX_STR-LNRAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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