ABAP Select data from SAP table A_RAP_SHDR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM A_RAP_SHDR
*  INTO TABLE @DATA(IT_A_RAP_SHDR2).
*--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_A_RAP_SHDR INDEX 1 INTO DATA(WA_A_RAP_SHDR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<A_RAP_SHDR>-MANDT = 1.
<A_RAP_SHDR>-HEADERID = 1.
<A_RAP_SHDR>-TESTTYPE = 1.
<A_RAP_SHDR>-TESTSIZE = 1.
<A_RAP_SHDR>-TOTALTASKS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_A_RAP_SHDR-MAXTASKS, sy-vline,
  WA_A_RAP_SHDR-STARTTIME, sy-vline,
  WA_A_RAP_SHDR-ENDTIME, sy-vline,
  WA_A_RAP_SHDR-CREATEDBY, sy-vline,
  WA_A_RAP_SHDR-STATUS, sy-vline,
  WA_A_RAP_SHDR-STATUSCRIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_A_RAP_SHDR 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_A_RAP_SHDR 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_A_RAP_SHDR INTO WA_A_RAP_SHDR.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_A_RAP_SHDR_STR, 
MANDT TYPE STRING,
HEADERID TYPE STRING,
TESTTYPE TYPE STRING,
TESTSIZE TYPE STRING,
TOTALTASKS TYPE STRING,
MAXTASKS TYPE STRING,
STARTTIME TYPE STRING,
ENDTIME TYPE STRING,
CREATEDBY TYPE STRING,
STATUS TYPE STRING,
STATUSCRIT TYPE STRING,
DURATIONMINS TYPE STRING,
DURATIONSECS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_A_RAP_SHDR_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_A_RAP_SHDR_STR-MANDT sy-vline 
WA_A_RAP_SHDR_STR-HEADERID sy-vline 
WA_A_RAP_SHDR_STR-TESTTYPE sy-vline 
WA_A_RAP_SHDR_STR-TESTSIZE sy-vline 
WA_A_RAP_SHDR_STR-TOTALTASKS sy-vline 
WA_A_RAP_SHDR_STR-MAXTASKS sy-vline 
WA_A_RAP_SHDR_STR-STARTTIME sy-vline 
WA_A_RAP_SHDR_STR-ENDTIME sy-vline 
WA_A_RAP_SHDR_STR-CREATEDBY sy-vline 
WA_A_RAP_SHDR_STR-STATUS sy-vline 
WA_A_RAP_SHDR_STR-STATUSCRIT sy-vline 
WA_A_RAP_SHDR_STR-DURATIONMINS sy-vline 
WA_A_RAP_SHDR_STR-DURATIONSECS sy-vline      INTO ld_text SEPARATED BY SPACE.

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