ABAP Select data from SAP table J_1UF_HD_ACT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1UF_HD_ACT 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 J_1UF_HD_ACT. 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 J_1UF_HD_ACT 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_J_1UF_HD_ACT TYPE STANDARD TABLE OF J_1UF_HD_ACT,
      WA_J_1UF_HD_ACT TYPE J_1UF_HD_ACT,
      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: <J_1UF_HD_ACT> TYPE J_1UF_HD_ACT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1UF_HD_ACT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1UF_HD_ACT
  INTO TABLE IT_J_1UF_HD_ACT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1UF_HD_ACT
*  INTO TABLE @DATA(IT_J_1UF_HD_ACT2).
*--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_J_1UF_HD_ACT INDEX 1 INTO DATA(WA_J_1UF_HD_ACT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1UF_HD_ACT ASSIGNING <J_1UF_HD_ACT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1UF_HD_ACT>-BUKRS = 1.
<J_1UF_HD_ACT>-BELNR = 1.
<J_1UF_HD_ACT>-VBELN = 1.
<J_1UF_HD_ACT>-AUDAT = 1.
<J_1UF_HD_ACT>-NAME1 = 1.

ENDLOOP.

LOOP AT IT_J_1UF_HD_ACT INTO WA_J_1UF_HD_ACT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1UF_HD_ACT-NAME2, sy-vline,
  WA_J_1UF_HD_ACT-POST_CODE1, sy-vline,
  WA_J_1UF_HD_ACT-CITY1, sy-vline,
  WA_J_1UF_HD_ACT-CITY2, sy-vline,
  WA_J_1UF_HD_ACT-STREET, sy-vline,
  WA_J_1UF_HD_ACT-HOUSE_NUM1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1UF_HD_ACT 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_J_1UF_HD_ACT 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_J_1UF_HD_ACT INTO WA_J_1UF_HD_ACT.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_HD_ACT-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_HD_ACT-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_HD_ACT-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_HD_ACT-VBELN.
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_J_1UF_HD_ACT_STR, 
BUKRS TYPE STRING,
BELNR TYPE STRING,
VBELN TYPE STRING,
AUDAT TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
POST_CODE1 TYPE STRING,
CITY1 TYPE STRING,
CITY2 TYPE STRING,
STREET TYPE STRING,
HOUSE_NUM1 TYPE STRING,
CODE_U03 TYPE STRING,
OWNBANK_BANKN TYPE STRING,
BANKA TYPE STRING,
ORT01 TYPE STRING,
BNKLZ TYPE STRING,
NAME_BOSS TYPE STRING,
CL_NAME1 TYPE STRING,
CL_NAME2 TYPE STRING,
CL_POST_CODE1 TYPE STRING,
CL_CITY1 TYPE STRING,
CL_CITY2 TYPE STRING,
CL_STREET TYPE STRING,
CL_HOUSE_NUM1 TYPE STRING,
CL_CODE_U03 TYPE STRING,
CL_BANKN TYPE STRING,
CL_BANKA TYPE STRING,
CL_ORT01 TYPE STRING,
CL_BNKLZ TYPE STRING,
CL_NAME_BOSS TYPE STRING,
NAME_SERVICES TYPE STRING,
SUPOS TYPE STRING,
SUM_PDV TYPE STRING,
TOTAL_SUM TYPE STRING,
WAERK TYPE STRING,
CURR TYPE STRING,
CURR_2 TYPE STRING,
OWNBANK_IBAN TYPE STRING,
CL_IBAN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1UF_HD_ACT_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_J_1UF_HD_ACT_STR-BUKRS sy-vline 
WA_J_1UF_HD_ACT_STR-BELNR sy-vline 
WA_J_1UF_HD_ACT_STR-VBELN sy-vline 
WA_J_1UF_HD_ACT_STR-AUDAT sy-vline 
WA_J_1UF_HD_ACT_STR-NAME1 sy-vline 
WA_J_1UF_HD_ACT_STR-NAME2 sy-vline 
WA_J_1UF_HD_ACT_STR-POST_CODE1 sy-vline 
WA_J_1UF_HD_ACT_STR-CITY1 sy-vline 
WA_J_1UF_HD_ACT_STR-CITY2 sy-vline 
WA_J_1UF_HD_ACT_STR-STREET sy-vline 
WA_J_1UF_HD_ACT_STR-HOUSE_NUM1 sy-vline 
WA_J_1UF_HD_ACT_STR-CODE_U03 sy-vline 
WA_J_1UF_HD_ACT_STR-OWNBANK_BANKN sy-vline 
WA_J_1UF_HD_ACT_STR-BANKA sy-vline 
WA_J_1UF_HD_ACT_STR-ORT01 sy-vline 
WA_J_1UF_HD_ACT_STR-BNKLZ sy-vline 
WA_J_1UF_HD_ACT_STR-NAME_BOSS sy-vline 
WA_J_1UF_HD_ACT_STR-CL_NAME1 sy-vline 
WA_J_1UF_HD_ACT_STR-CL_NAME2 sy-vline 
WA_J_1UF_HD_ACT_STR-CL_POST_CODE1 sy-vline 
WA_J_1UF_HD_ACT_STR-CL_CITY1 sy-vline 
WA_J_1UF_HD_ACT_STR-CL_CITY2 sy-vline 
WA_J_1UF_HD_ACT_STR-CL_STREET sy-vline 
WA_J_1UF_HD_ACT_STR-CL_HOUSE_NUM1 sy-vline 
WA_J_1UF_HD_ACT_STR-CL_CODE_U03 sy-vline 
WA_J_1UF_HD_ACT_STR-CL_BANKN sy-vline 
WA_J_1UF_HD_ACT_STR-CL_BANKA sy-vline 
WA_J_1UF_HD_ACT_STR-CL_ORT01 sy-vline 
WA_J_1UF_HD_ACT_STR-CL_BNKLZ sy-vline 
WA_J_1UF_HD_ACT_STR-CL_NAME_BOSS sy-vline 
WA_J_1UF_HD_ACT_STR-NAME_SERVICES sy-vline 
WA_J_1UF_HD_ACT_STR-SUPOS sy-vline 
WA_J_1UF_HD_ACT_STR-SUM_PDV sy-vline 
WA_J_1UF_HD_ACT_STR-TOTAL_SUM sy-vline 
WA_J_1UF_HD_ACT_STR-WAERK sy-vline 
WA_J_1UF_HD_ACT_STR-CURR sy-vline 
WA_J_1UF_HD_ACT_STR-CURR_2 sy-vline 
WA_J_1UF_HD_ACT_STR-OWNBANK_IBAN sy-vline 
WA_J_1UF_HD_ACT_STR-CL_IBAN sy-vline      INTO ld_text SEPARATED BY SPACE.

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