ABAP Select data from SAP table TRR_AAO_PJ 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_PJ 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_PJ. 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_PJ 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_PJ TYPE STANDARD TABLE OF TRR_AAO_PJ,
      WA_TRR_AAO_PJ TYPE TRR_AAO_PJ,
      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_PJ> TYPE TRR_AAO_PJ.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRR_AAO_PJ
*  INTO TABLE @DATA(IT_TRR_AAO_PJ2).
*--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_PJ INDEX 1 INTO DATA(WA_TRR_AAO_PJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRR_AAO_PJ>-MANDT = 1.
<TRR_AAO_PJ>-COST_OBJECT = 1.
<TRR_AAO_PJ>-VTKEY = 1.
<TRR_AAO_PJ>-VTCAT = 1.
<TRR_AAO_PJ>-CHARGE_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRR_AAO_PJ-GPART, sy-vline,
  WA_TRR_AAO_PJ-VKONT, sy-vline,
  WA_TRR_AAO_PJ-VKORG, sy-vline,
  WA_TRR_AAO_PJ-BUKRS, sy-vline,
  WA_TRR_AAO_PJ-KOKRS, sy-vline,
  WA_TRR_AAO_PJ-VTPOS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRR_AAO_PJ 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_PJ 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_PJ INTO WA_TRR_AAO_PJ.


*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_PJ-COST_OBJECT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRR_AAO_PJ-COST_OBJECT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit MATN1, internal->external for field MATNR_COPA
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_TRR_AAO_PJ-MATNR_COPA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRR_AAO_PJ-MATNR_COPA.
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_PJ-SOLUTION_ORDER_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRR_AAO_PJ-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_PJ_STR, 
MANDT TYPE STRING,
COST_OBJECT TYPE STRING,
VTKEY TYPE STRING,
VTCAT TYPE STRING,
CHARGE_TYPE TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
VKORG TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
VTPOS TYPE STRING,
PRCTR TYPE STRING,
ABGSL TYPE STRING,
MATNR TYPE STRING,
MATNR_COPA TYPE STRING,
VTITT TYPE STRING,
SOLUTION_ORDER_ID TYPE STRING,
BILL_PLAN_EXISTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRR_AAO_PJ_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_PJ_STR-MANDT sy-vline 
WA_TRR_AAO_PJ_STR-COST_OBJECT sy-vline 
WA_TRR_AAO_PJ_STR-VTKEY sy-vline 
WA_TRR_AAO_PJ_STR-VTCAT sy-vline 
WA_TRR_AAO_PJ_STR-CHARGE_TYPE sy-vline 
WA_TRR_AAO_PJ_STR-GPART sy-vline 
WA_TRR_AAO_PJ_STR-VKONT sy-vline 
WA_TRR_AAO_PJ_STR-VKORG sy-vline 
WA_TRR_AAO_PJ_STR-BUKRS sy-vline 
WA_TRR_AAO_PJ_STR-KOKRS sy-vline 
WA_TRR_AAO_PJ_STR-VTPOS sy-vline 
WA_TRR_AAO_PJ_STR-PRCTR sy-vline 
WA_TRR_AAO_PJ_STR-ABGSL sy-vline 
WA_TRR_AAO_PJ_STR-MATNR sy-vline 
WA_TRR_AAO_PJ_STR-MATNR_COPA sy-vline 
WA_TRR_AAO_PJ_STR-VTITT sy-vline 
WA_TRR_AAO_PJ_STR-SOLUTION_ORDER_ID sy-vline 
WA_TRR_AAO_PJ_STR-BILL_PLAN_EXISTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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