ABAP Select data from SAP table ACEPS_ACE_DOC_EXTENDED into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACEPS_ACE_DOC_EXTENDED
*  INTO TABLE @DATA(IT_ACEPS_ACE_DOC_EXTENDED2).
*--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_ACEPS_ACE_DOC_EXTENDED INDEX 1 INTO DATA(WA_ACEPS_ACE_DOC_EXTENDED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACEPS_ACE_DOC_EXTENDED>-MANDT = 1.
<ACEPS_ACE_DOC_EXTENDED>-COMP = 1.
<ACEPS_ACE_DOC_EXTENDED>-BUKRS = 1.
<ACEPS_ACE_DOC_EXTENDED>-GJAHR = 1.
<ACEPS_ACE_DOC_EXTENDED>-OBJID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACEPS_ACE_DOC_EXTENDED-SUBID, sy-vline,
  WA_ACEPS_ACE_DOC_EXTENDED-ACRTYPE, sy-vline,
  WA_ACEPS_ACE_DOC_EXTENDED-ACCRULE, sy-vline,
  WA_ACEPS_ACE_DOC_EXTENDED-DOCNR, sy-vline,
  WA_ACEPS_ACE_DOC_EXTENDED-VALCUM, sy-vline,
  WA_ACEPS_ACE_DOC_EXTENDED-VALTBP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACEPS_ACE_DOC_EXTENDED 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_ACEPS_ACE_DOC_EXTENDED 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_ACEPS_ACE_DOC_EXTENDED INTO WA_ACEPS_ACE_DOC_EXTENDED.


*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_ACEPS_ACE_DOC_EXTENDED-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACEPS_ACE_DOC_EXTENDED-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AU152, internal->external for field VALCUM
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_ACEPS_ACE_DOC_EXTENDED-VALCUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACEPS_ACE_DOC_EXTENDED-VALCUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field VALTBP
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_ACEPS_ACE_DOC_EXTENDED-VALTBP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACEPS_ACE_DOC_EXTENDED-VALTBP.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit AU152, internal->external for field AMT_INV_SUM
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_ACEPS_ACE_DOC_EXTENDED-AMT_INV_SUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACEPS_ACE_DOC_EXTENDED-AMT_INV_SUM.
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_ACEPS_ACE_DOC_EXTENDED_STR, 
MANDT TYPE STRING,
COMP TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
OBJID TYPE STRING,
SUBID TYPE STRING,
ACRTYPE TYPE STRING,
ACCRULE TYPE STRING,
DOCNR TYPE STRING,
VALCUM TYPE STRING,
VALTBP TYPE STRING,
CURRENCY TYPE STRING,
TRANSTYPE TYPE STRING,
EFFDATE TYPE STRING,
PODATE TYPE STRING,
POPER TYPE STRING,
POYEAR TYPE STRING,
RUNID TYPE STRING,
AWTYP TYPE STRING,
AWKEY TYPE STRING,
AWSYS TYPE STRING,
TIMESTMP TYPE STRING,
REVERSAL_DOC TYPE STRING,
REVERSED_DOC TYPE STRING,
ERROR_FLAG TYPE STRING,
ACC_ERROR_FLAG TYPE STRING,
SIMULATE TYPE STRING,
FIND_OPEN_PERIOD TYPE STRING,
AMT_INV_SUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACEPS_ACE_DOC_EXTENDED_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_ACEPS_ACE_DOC_EXTENDED_STR-MANDT sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-COMP sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-BUKRS sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-GJAHR sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-OBJID sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-SUBID sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-ACRTYPE sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-ACCRULE sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-DOCNR sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-VALCUM sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-VALTBP sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-CURRENCY sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-TRANSTYPE sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-EFFDATE sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-PODATE sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-POPER sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-POYEAR sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-RUNID sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-AWTYP sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-AWKEY sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-AWSYS sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-TIMESTMP sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-REVERSAL_DOC sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-REVERSED_DOC sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-ERROR_FLAG sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-ACC_ERROR_FLAG sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-SIMULATE sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-FIND_OPEN_PERIOD sy-vline 
WA_ACEPS_ACE_DOC_EXTENDED_STR-AMT_INV_SUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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