ABAP Select data from SAP table TXW_ANLA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TXW_ANLA 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_ANLA. 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_ANLA 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_ANLA TYPE STANDARD TABLE OF TXW_ANLA,
      WA_TXW_ANLA TYPE TXW_ANLA,
      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_ANLA> TYPE TXW_ANLA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXW_ANLA
*  INTO TABLE @DATA(IT_TXW_ANLA2).
*--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_ANLA INDEX 1 INTO DATA(WA_TXW_ANLA2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXW_ANLA-AIBN1, sy-vline,
  WA_TXW_ANLA-AIBN2, sy-vline,
  WA_TXW_ANLA-AKTIV, sy-vline,
  WA_TXW_ANLA-ANLKL, sy-vline,
  WA_TXW_ANLA-EIGKZ, sy-vline,
  WA_TXW_ANLA-GDLGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXW_ANLA 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_ANLA 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_ANLA INTO WA_TXW_ANLA.


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

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

*Conversion exit ALPHA, internal->external for field AIBN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TXW_ANLA-AIBN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_ANLA-AIBN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AIBN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TXW_ANLA-AIBN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_ANLA-AIBN2.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TXW_ANLA-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_ANLA-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field POSNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_TXW_ANLA-POSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_ANLA-POSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_TXW_ANLA-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_ANLA-POSID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TXW_ANLA-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_ANLA-LIFNR.
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_ANLA_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
AIBDT TYPE STRING,
AIBN1 TYPE STRING,
AIBN2 TYPE STRING,
AKTIV TYPE STRING,
ANLKL TYPE STRING,
EIGKZ TYPE STRING,
GDLGRP TYPE STRING,
KTOGR TYPE STRING,
MEINS TYPE STRING,
MENGE TYPE STRING,
OBJNR TYPE STRING,
ORD41 TYPE STRING,
ORD42 TYPE STRING,
ORD43 TYPE STRING,
ORD44 TYPE STRING,
POSNR TYPE STRING,
POSID TYPE STRING,
TXA50 TYPE STRING,
TXT50 TYPE STRING,
TYPBZ TYPE STRING,
URJHR TYPE STRING,
URWRT TYPE STRING,
VBUND TYPE STRING,
XAFABCH TYPE STRING,
XANLGR TYPE STRING,
ZUGDT TYPE STRING,
ZUJHR TYPE STRING,
ZUPER TYPE STRING,
EAUFN TYPE STRING,
DEAKT TYPE STRING,
VMGLI TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
INVNR TYPE STRING,
LIFNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXW_ANLA_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_ANLA_STR-MANDT sy-vline 
WA_TXW_ANLA_STR-BUKRS sy-vline 
WA_TXW_ANLA_STR-ANLN1 sy-vline 
WA_TXW_ANLA_STR-ANLN2 sy-vline 
WA_TXW_ANLA_STR-AIBDT sy-vline 
WA_TXW_ANLA_STR-AIBN1 sy-vline 
WA_TXW_ANLA_STR-AIBN2 sy-vline 
WA_TXW_ANLA_STR-AKTIV sy-vline 
WA_TXW_ANLA_STR-ANLKL sy-vline 
WA_TXW_ANLA_STR-EIGKZ sy-vline 
WA_TXW_ANLA_STR-GDLGRP sy-vline 
WA_TXW_ANLA_STR-KTOGR sy-vline 
WA_TXW_ANLA_STR-MEINS sy-vline 
WA_TXW_ANLA_STR-MENGE sy-vline 
WA_TXW_ANLA_STR-OBJNR sy-vline 
WA_TXW_ANLA_STR-ORD41 sy-vline 
WA_TXW_ANLA_STR-ORD42 sy-vline 
WA_TXW_ANLA_STR-ORD43 sy-vline 
WA_TXW_ANLA_STR-ORD44 sy-vline 
WA_TXW_ANLA_STR-POSNR sy-vline 
WA_TXW_ANLA_STR-POSID sy-vline 
WA_TXW_ANLA_STR-TXA50 sy-vline 
WA_TXW_ANLA_STR-TXT50 sy-vline 
WA_TXW_ANLA_STR-TYPBZ sy-vline 
WA_TXW_ANLA_STR-URJHR sy-vline 
WA_TXW_ANLA_STR-URWRT sy-vline 
WA_TXW_ANLA_STR-VBUND sy-vline 
WA_TXW_ANLA_STR-XAFABCH sy-vline 
WA_TXW_ANLA_STR-XANLGR sy-vline 
WA_TXW_ANLA_STR-ZUGDT sy-vline 
WA_TXW_ANLA_STR-ZUJHR sy-vline 
WA_TXW_ANLA_STR-ZUPER sy-vline 
WA_TXW_ANLA_STR-EAUFN sy-vline 
WA_TXW_ANLA_STR-DEAKT sy-vline 
WA_TXW_ANLA_STR-VMGLI sy-vline 
WA_TXW_ANLA_STR-ERDAT sy-vline 
WA_TXW_ANLA_STR-ERNAM sy-vline 
WA_TXW_ANLA_STR-INVNR sy-vline 
WA_TXW_ANLA_STR-LIFNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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