ABAP Select data from SAP table ACARTRVL01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ACARTRVL01 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 ACARTRVL01. 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 ACARTRVL01 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_ACARTRVL01 TYPE STANDARD TABLE OF ACARTRVL01,
      WA_ACARTRVL01 TYPE ACARTRVL01,
      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: <ACARTRVL01> TYPE ACARTRVL01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ACARTRVL01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ACARTRVL01
  INTO TABLE IT_ACARTRVL01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACARTRVL01
*  INTO TABLE @DATA(IT_ACARTRVL012).
*--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_ACARTRVL01 INDEX 1 INTO DATA(WA_ACARTRVL012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ACARTRVL01 ASSIGNING <ACARTRVL01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACARTRVL01>-ITEMNO_ACC = 1.
<ACARTRVL01>-CUSTOMER = 1.
<ACARTRVL01>-REF_KEY_1 = 1.
<ACARTRVL01>-REF_KEY_2 = 1.
<ACARTRVL01>-REF_KEY_3 = 1.

ENDLOOP.

LOOP AT IT_ACARTRVL01 INTO WA_ACARTRVL01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACARTRVL01-BLINE_DATE, sy-vline,
  WA_ACARTRVL01-PYMT_METH, sy-vline,
  WA_ACARTRVL01-VAT_REG_NO, sy-vline,
  WA_ACARTRVL01-ALLOC_NMBR, sy-vline,
  WA_ACARTRVL01-ITEM_TEXT, sy-vline,
  WA_ACARTRVL01-PARTNER_BK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACARTRVL01 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_ACARTRVL01 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_ACARTRVL01 INTO WA_ACARTRVL01.


*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 CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACARTRVL01-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACARTRVL01-CUSTOMER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GL_ACCOUNT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACARTRVL01-GL_ACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACARTRVL01-GL_ACCOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFIT_CTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACARTRVL01-PROFIT_CTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACARTRVL01-PROFIT_CTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PART_PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACARTRVL01-PART_PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACARTRVL01-PART_PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACARTRVL01-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACARTRVL01-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACARTRVL01-PARTNER_SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACARTRVL01-PARTNER_SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACARTRVL01-GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACARTRVL01-GRANT_NBR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACARTRVL01-PARTNER_GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACARTRVL01-PARTNER_GRANT_NBR.
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_ACARTRVL01_STR, 
ITEMNO_ACC TYPE STRING,
CUSTOMER TYPE STRING,
REF_KEY_1 TYPE STRING,
REF_KEY_2 TYPE STRING,
REF_KEY_3 TYPE STRING,
BLINE_DATE TYPE STRING,
PYMT_METH TYPE STRING,
VAT_REG_NO TYPE STRING,
ALLOC_NMBR TYPE STRING,
ITEM_TEXT TYPE STRING,
PARTNER_BK TYPE STRING,
ACCT_KEY TYPE STRING,
GL_ACCOUNT TYPE STRING,
SCBANK_IND TYPE STRING,
PYMT_AMT TYPE STRING,
PYMT_CUR TYPE STRING,
PYMT_CUR_ISO TYPE STRING,
PROFIT_CTR TYPE STRING,
PART_PRCTR TYPE STRING,
SEGMENT TYPE STRING,
PARTNER_SEGMENT TYPE STRING,
FUND TYPE STRING,
PARTNER_FUND TYPE STRING,
GRANT_NBR TYPE STRING,
PARTNER_GRANT_NBR TYPE STRING,
BUS_AREA TYPE STRING,
TR_PART_BA TYPE STRING,
NEG_POSTNG TYPE STRING,
FUND_LONG TYPE STRING,
PARTNER_FUND_LONG TYPE STRING,
FUNC_AREA TYPE STRING,
PARTNER_FUNC_AREA TYPE STRING,
BUDGET_PERIOD TYPE STRING,
PARTNER_BUDGET_PERIOD TYPE STRING,
PYMT_AMT_LONG TYPE STRING,
SP_GL_IND TYPE STRING,
SUPCOUNTRY TYPE STRING,
BUSINESSPLACE TYPE STRING,
SECTIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACARTRVL01_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_ACARTRVL01_STR-ITEMNO_ACC sy-vline 
WA_ACARTRVL01_STR-CUSTOMER sy-vline 
WA_ACARTRVL01_STR-REF_KEY_1 sy-vline 
WA_ACARTRVL01_STR-REF_KEY_2 sy-vline 
WA_ACARTRVL01_STR-REF_KEY_3 sy-vline 
WA_ACARTRVL01_STR-BLINE_DATE sy-vline 
WA_ACARTRVL01_STR-PYMT_METH sy-vline 
WA_ACARTRVL01_STR-VAT_REG_NO sy-vline 
WA_ACARTRVL01_STR-ALLOC_NMBR sy-vline 
WA_ACARTRVL01_STR-ITEM_TEXT sy-vline 
WA_ACARTRVL01_STR-PARTNER_BK sy-vline 
WA_ACARTRVL01_STR-ACCT_KEY sy-vline 
WA_ACARTRVL01_STR-GL_ACCOUNT sy-vline 
WA_ACARTRVL01_STR-SCBANK_IND sy-vline 
WA_ACARTRVL01_STR-PYMT_AMT sy-vline 
WA_ACARTRVL01_STR-PYMT_CUR sy-vline 
WA_ACARTRVL01_STR-PYMT_CUR_ISO sy-vline 
WA_ACARTRVL01_STR-PROFIT_CTR sy-vline 
WA_ACARTRVL01_STR-PART_PRCTR sy-vline 
WA_ACARTRVL01_STR-SEGMENT sy-vline 
WA_ACARTRVL01_STR-PARTNER_SEGMENT sy-vline 
WA_ACARTRVL01_STR-FUND sy-vline 
WA_ACARTRVL01_STR-PARTNER_FUND sy-vline 
WA_ACARTRVL01_STR-GRANT_NBR sy-vline 
WA_ACARTRVL01_STR-PARTNER_GRANT_NBR sy-vline 
WA_ACARTRVL01_STR-BUS_AREA sy-vline 
WA_ACARTRVL01_STR-TR_PART_BA sy-vline 
WA_ACARTRVL01_STR-NEG_POSTNG sy-vline 
WA_ACARTRVL01_STR-FUND_LONG sy-vline 
WA_ACARTRVL01_STR-PARTNER_FUND_LONG sy-vline 
WA_ACARTRVL01_STR-FUNC_AREA sy-vline 
WA_ACARTRVL01_STR-PARTNER_FUNC_AREA sy-vline 
WA_ACARTRVL01_STR-BUDGET_PERIOD sy-vline 
WA_ACARTRVL01_STR-PARTNER_BUDGET_PERIOD sy-vline 
WA_ACARTRVL01_STR-PYMT_AMT_LONG sy-vline 
WA_ACARTRVL01_STR-SP_GL_IND sy-vline 
WA_ACARTRVL01_STR-SUPCOUNTRY sy-vline 
WA_ACARTRVL01_STR-BUSINESSPLACE sy-vline 
WA_ACARTRVL01_STR-SECTIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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