ABAP Select data from SAP table ACCSTA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACCSTA
*  INTO TABLE @DATA(IT_ACCSTA2).
*--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_ACCSTA INDEX 1 INTO DATA(WA_ACCSTA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACCSTA>-ACCTNO = 1.
<ACCSTA>-RET_MATNR = 1.
<ACCSTA>-ROLEACM = 1.
<ACCSTA>-OTYPE = 1.
<ACCSTA>-OBJID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACCSTA-ACCTSTATE, sy-vline,
  WA_ACCSTA-PARNR, sy-vline,
  WA_ACCSTA-ACMAN, sy-vline,
  WA_ACCSTA-ACMANTY, sy-vline,
  WA_ACCSTA-ACHOL, sy-vline,
  WA_ACCSTA-ACHOLTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACCSTA 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_ACCSTA 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_ACCSTA INTO WA_ACCSTA.


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

*Conversion exit MATN1, internal->external for field RET_MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ACCSTA-RET_MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACCSTA-RET_MATNR.
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_ACCSTA_STR, 
ACCTNO TYPE STRING,
RET_MATNR TYPE STRING,
ROLEACM TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
ACCTSTATE TYPE STRING,
PARNR TYPE STRING,
ACMAN TYPE STRING,
ACMANTY TYPE STRING,
ACHOL TYPE STRING,
ACHOLTY TYPE STRING,
CHNGTYPE TYPE STRING,
CUSTNO_PR TYPE STRING,
SUPPNO_PR TYPE STRING,
MATCUSTNO TYPE STRING,
MATSUPPNO TYPE STRING,
MATGR TYPE STRING,
ACCTNO_S TYPE STRING,
CPSTATEHD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACCSTA_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_ACCSTA_STR-ACCTNO sy-vline 
WA_ACCSTA_STR-RET_MATNR sy-vline 
WA_ACCSTA_STR-ROLEACM sy-vline 
WA_ACCSTA_STR-OTYPE sy-vline 
WA_ACCSTA_STR-OBJID sy-vline 
WA_ACCSTA_STR-ACCTSTATE sy-vline 
WA_ACCSTA_STR-PARNR sy-vline 
WA_ACCSTA_STR-ACMAN sy-vline 
WA_ACCSTA_STR-ACMANTY sy-vline 
WA_ACCSTA_STR-ACHOL sy-vline 
WA_ACCSTA_STR-ACHOLTY sy-vline 
WA_ACCSTA_STR-CHNGTYPE sy-vline 
WA_ACCSTA_STR-CUSTNO_PR sy-vline 
WA_ACCSTA_STR-SUPPNO_PR sy-vline 
WA_ACCSTA_STR-MATCUSTNO sy-vline 
WA_ACCSTA_STR-MATSUPPNO sy-vline 
WA_ACCSTA_STR-MATGR sy-vline 
WA_ACCSTA_STR-ACCTNO_S sy-vline 
WA_ACCSTA_STR-CPSTATEHD sy-vline      INTO ld_text SEPARATED BY SPACE.

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