ABAP Select data from SAP table ANLB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ANLB
*  INTO TABLE @DATA(IT_ANLB2).
*--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_ANLB INDEX 1 INTO DATA(WA_ANLB2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ANLB-BDATU, sy-vline,
  WA_ANLB-ADATU, sy-vline,
  WA_ANLB-ERNAM, sy-vline,
  WA_ANLB-ERDAT, sy-vline,
  WA_ANLB-AENAM, sy-vline,
  WA_ANLB-AEDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ANLB 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_ANLB 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_ANLB INTO WA_ANLB.


*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_ANLB-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ANLB-ANLN1.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field UMJAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ANLB-UMJAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ANLB-UMJAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field SCHRW
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_ANLB-SCHRW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ANLB-SCHRW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field LGJAN
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ANLB-LGJAN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ANLB-LGJAN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ANLGR2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ANLB-ANLGR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ANLB-ANLGR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field VYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ANLB-VYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ANLB-VYEAR.
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_ANLB_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
AFABE TYPE STRING,
BDATU TYPE STRING,
ADATU TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
XLOEV TYPE STRING,
XSPEB TYPE STRING,
FELEI TYPE STRING,
XNEGA TYPE STRING,
XGWGK TYPE STRING,
XUNTA TYPE STRING,
AFABG TYPE STRING,
ZINBG TYPE STRING,
SAFBG TYPE STRING,
INVSL TYPE STRING,
AFASL TYPE STRING,
NDJAR TYPE STRING,
NDPER TYPE STRING,
NAPRZ TYPE STRING,
SAPRZ TYPE STRING,
WBIND TYPE STRING,
ALIND TYPE STRING,
APROP TYPE STRING,
UMJAR TYPE STRING,
NDURJ TYPE STRING,
NDURP TYPE STRING,
SCHRW TYPE STRING,
LGJAN TYPE STRING,
PERFY TYPE STRING,
ANUPD TYPE STRING,
AUFWTG TYPE STRING,
XAFBE TYPE STRING,
ANLGR TYPE STRING,
ANLGR2 TYPE STRING,
VYEAR TYPE STRING,
VMNTH TYPE STRING,
INBDA TYPE STRING,
ABGDAT_B TYPE STRING,
DEAKT_B TYPE STRING,
J_1AARVKEY TYPE STRING,
J_1AALTDAT TYPE STRING,
J_1AALTIDX TYPE STRING,
SCHRW_PROZ TYPE STRING,
UMPER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ANLB_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_ANLB_STR-MANDT sy-vline 
WA_ANLB_STR-BUKRS sy-vline 
WA_ANLB_STR-ANLN1 sy-vline 
WA_ANLB_STR-ANLN2 sy-vline 
WA_ANLB_STR-AFABE sy-vline 
WA_ANLB_STR-BDATU sy-vline 
WA_ANLB_STR-ADATU sy-vline 
WA_ANLB_STR-ERNAM sy-vline 
WA_ANLB_STR-ERDAT sy-vline 
WA_ANLB_STR-AENAM sy-vline 
WA_ANLB_STR-AEDAT sy-vline 
WA_ANLB_STR-XLOEV sy-vline 
WA_ANLB_STR-XSPEB sy-vline 
WA_ANLB_STR-FELEI sy-vline 
WA_ANLB_STR-XNEGA sy-vline 
WA_ANLB_STR-XGWGK sy-vline 
WA_ANLB_STR-XUNTA sy-vline 
WA_ANLB_STR-AFABG sy-vline 
WA_ANLB_STR-ZINBG sy-vline 
WA_ANLB_STR-SAFBG sy-vline 
WA_ANLB_STR-INVSL sy-vline 
WA_ANLB_STR-AFASL sy-vline 
WA_ANLB_STR-NDJAR sy-vline 
WA_ANLB_STR-NDPER sy-vline 
WA_ANLB_STR-NAPRZ sy-vline 
WA_ANLB_STR-SAPRZ sy-vline 
WA_ANLB_STR-WBIND sy-vline 
WA_ANLB_STR-ALIND sy-vline 
WA_ANLB_STR-APROP sy-vline 
WA_ANLB_STR-UMJAR sy-vline 
WA_ANLB_STR-NDURJ sy-vline 
WA_ANLB_STR-NDURP sy-vline 
WA_ANLB_STR-SCHRW sy-vline 
WA_ANLB_STR-LGJAN sy-vline 
WA_ANLB_STR-PERFY sy-vline 
WA_ANLB_STR-ANUPD sy-vline 
WA_ANLB_STR-AUFWTG sy-vline 
WA_ANLB_STR-XAFBE sy-vline 
WA_ANLB_STR-ANLGR sy-vline 
WA_ANLB_STR-ANLGR2 sy-vline 
WA_ANLB_STR-VYEAR sy-vline 
WA_ANLB_STR-VMNTH sy-vline 
WA_ANLB_STR-INBDA sy-vline 
WA_ANLB_STR-ABGDAT_B sy-vline 
WA_ANLB_STR-DEAKT_B sy-vline 
WA_ANLB_STR-J_1AARVKEY sy-vline 
WA_ANLB_STR-J_1AALTDAT sy-vline 
WA_ANLB_STR-J_1AALTIDX sy-vline 
WA_ANLB_STR-SCHRW_PROZ sy-vline 
WA_ANLB_STR-UMPER sy-vline      INTO ld_text SEPARATED BY SPACE.

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