ABAP Select data from SAP table TXW_ANLP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXW_ANLP
*  INTO TABLE @DATA(IT_TXW_ANLP2).
*--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_TXW_ANLP INDEX 1 INTO DATA(WA_TXW_ANLP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXW_ANLP>-MANDT = 1.
<TXW_ANLP>-BUKRS = 1.
<TXW_ANLP>-GJAHR = 1.
<TXW_ANLP>-PERAF = 1.
<TXW_ANLP>-AFBNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXW_ANLP-ANLN1, sy-vline,
  WA_TXW_ANLP-ANLN2, sy-vline,
  WA_TXW_ANLP-AFABER, sy-vline,
  WA_TXW_ANLP-ZUJHR, sy-vline,
  WA_TXW_ANLP-ZUCOD, sy-vline,
  WA_TXW_ANLP-AUFWP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXW_ANLP 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_TXW_ANLP 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_TXW_ANLP INTO WA_TXW_ANLP.


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

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TXW_ANLP-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_ANLP-ANLN1.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TXW_ANLP-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_ANLP-BELNR.
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_TXW_ANLP_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
PERAF TYPE STRING,
AFBNR TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
AFABER TYPE STRING,
ZUJHR TYPE STRING,
ZUCOD TYPE STRING,
AUFWP TYPE STRING,
AUFWB TYPE STRING,
AUFWZ TYPE STRING,
NAFAP TYPE STRING,
NAFAG TYPE STRING,
NAFAZ TYPE STRING,
SAFAP TYPE STRING,
SAFAG TYPE STRING,
SAFAZ TYPE STRING,
AAFAP TYPE STRING,
AAFAG TYPE STRING,
AAFAZ TYPE STRING,
MAFAP TYPE STRING,
MAFAG TYPE STRING,
MAFAZ TYPE STRING,
ZINSP TYPE STRING,
ZINSG TYPE STRING,
ZINSZ TYPE STRING,
AUFNP TYPE STRING,
AUFNG TYPE STRING,
AUFNZ TYPE STRING,
ANSWL TYPE STRING,
INVZM TYPE STRING,
KTOGR TYPE STRING,
AFASL TYPE STRING,
KOSTL TYPE STRING,
GSBER TYPE STRING,
CAUFN TYPE STRING,
XUNUL TYPE STRING,
ANUPD TYPE STRING,
FKBER TYPE STRING,
BELNR TYPE STRING,
LSTAR TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXW_ANLP_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_TXW_ANLP_STR-MANDT sy-vline 
WA_TXW_ANLP_STR-BUKRS sy-vline 
WA_TXW_ANLP_STR-GJAHR sy-vline 
WA_TXW_ANLP_STR-PERAF sy-vline 
WA_TXW_ANLP_STR-AFBNR sy-vline 
WA_TXW_ANLP_STR-ANLN1 sy-vline 
WA_TXW_ANLP_STR-ANLN2 sy-vline 
WA_TXW_ANLP_STR-AFABER sy-vline 
WA_TXW_ANLP_STR-ZUJHR sy-vline 
WA_TXW_ANLP_STR-ZUCOD sy-vline 
WA_TXW_ANLP_STR-AUFWP sy-vline 
WA_TXW_ANLP_STR-AUFWB sy-vline 
WA_TXW_ANLP_STR-AUFWZ sy-vline 
WA_TXW_ANLP_STR-NAFAP sy-vline 
WA_TXW_ANLP_STR-NAFAG sy-vline 
WA_TXW_ANLP_STR-NAFAZ sy-vline 
WA_TXW_ANLP_STR-SAFAP sy-vline 
WA_TXW_ANLP_STR-SAFAG sy-vline 
WA_TXW_ANLP_STR-SAFAZ sy-vline 
WA_TXW_ANLP_STR-AAFAP sy-vline 
WA_TXW_ANLP_STR-AAFAG sy-vline 
WA_TXW_ANLP_STR-AAFAZ sy-vline 
WA_TXW_ANLP_STR-MAFAP sy-vline 
WA_TXW_ANLP_STR-MAFAG sy-vline 
WA_TXW_ANLP_STR-MAFAZ sy-vline 
WA_TXW_ANLP_STR-ZINSP sy-vline 
WA_TXW_ANLP_STR-ZINSG sy-vline 
WA_TXW_ANLP_STR-ZINSZ sy-vline 
WA_TXW_ANLP_STR-AUFNP sy-vline 
WA_TXW_ANLP_STR-AUFNG sy-vline 
WA_TXW_ANLP_STR-AUFNZ sy-vline 
WA_TXW_ANLP_STR-ANSWL sy-vline 
WA_TXW_ANLP_STR-INVZM sy-vline 
WA_TXW_ANLP_STR-KTOGR sy-vline 
WA_TXW_ANLP_STR-AFASL sy-vline 
WA_TXW_ANLP_STR-KOSTL sy-vline 
WA_TXW_ANLP_STR-GSBER sy-vline 
WA_TXW_ANLP_STR-CAUFN sy-vline 
WA_TXW_ANLP_STR-XUNUL sy-vline 
WA_TXW_ANLP_STR-ANUPD sy-vline 
WA_TXW_ANLP_STR-FKBER sy-vline 
WA_TXW_ANLP_STR-BELNR sy-vline 
WA_TXW_ANLP_STR-LSTAR sy-vline 
WA_TXW_ANLP_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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