ABAP Select data from SAP table TRR_AAO_PR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRR_AAO_PR
*  INTO TABLE @DATA(IT_TRR_AAO_PR2).
*--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_TRR_AAO_PR INDEX 1 INTO DATA(WA_TRR_AAO_PR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRR_AAO_PR>-MANDT = 1.
<TRR_AAO_PR>-COST_OBJECT = 1.
<TRR_AAO_PR>-PSPID = 1.
<TRR_AAO_PR>-VERNR = 1.
<TRR_AAO_PR>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRR_AAO_PR-KOKRS, sy-vline,
  WA_TRR_AAO_PR-WERKS, sy-vline,
  WA_TRR_AAO_PR-PRCTR, sy-vline,
  WA_TRR_AAO_PR-EMPLOYEEFULLNAME, sy-vline,
  WA_TRR_AAO_PR-ABGSL, sy-vline,
  WA_TRR_AAO_PR-FAKKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRR_AAO_PR 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_TRR_AAO_PR 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_TRR_AAO_PR INTO WA_TRR_AAO_PR.


*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 FTRAO, internal->external for field COST_OBJECT
CALL FUNCTION 'CONVERSION_EXIT_FTRAO_OUTPUT'
  EXPORTING
    input =                      WA_TRR_AAO_PR-COST_OBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRR_AAO_PR-COST_OBJECT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PSPID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_TRR_AAO_PR-PSPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRR_AAO_PR-PSPID.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field SOLUTION_ORDER_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRR_AAO_PR-SOLUTION_ORDER_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRR_AAO_PR-SOLUTION_ORDER_ID.
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_TRR_AAO_PR_STR, 
MANDT TYPE STRING,
COST_OBJECT TYPE STRING,
PSPID TYPE STRING,
VERNR TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
WERKS TYPE STRING,
PRCTR TYPE STRING,
EMPLOYEEFULLNAME TYPE STRING,
ABGSL TYPE STRING,
FAKKZ TYPE STRING,
CPCURR TYPE STRING,
KTEXT TYPE STRING,
VBELN TYPE STRING,
SOLUTION_ORDER_ID TYPE STRING,
ZWEIG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRR_AAO_PR_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_TRR_AAO_PR_STR-MANDT sy-vline 
WA_TRR_AAO_PR_STR-COST_OBJECT sy-vline 
WA_TRR_AAO_PR_STR-PSPID sy-vline 
WA_TRR_AAO_PR_STR-VERNR sy-vline 
WA_TRR_AAO_PR_STR-BUKRS sy-vline 
WA_TRR_AAO_PR_STR-KOKRS sy-vline 
WA_TRR_AAO_PR_STR-WERKS sy-vline 
WA_TRR_AAO_PR_STR-PRCTR sy-vline 
WA_TRR_AAO_PR_STR-EMPLOYEEFULLNAME sy-vline 
WA_TRR_AAO_PR_STR-ABGSL sy-vline 
WA_TRR_AAO_PR_STR-FAKKZ sy-vline 
WA_TRR_AAO_PR_STR-CPCURR sy-vline 
WA_TRR_AAO_PR_STR-KTEXT sy-vline 
WA_TRR_AAO_PR_STR-VBELN sy-vline 
WA_TRR_AAO_PR_STR-SOLUTION_ORDER_ID sy-vline 
WA_TRR_AAO_PR_STR-ZWEIG sy-vline      INTO ld_text SEPARATED BY SPACE.

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