ABAP Select data from SAP table TRLO_T_AUSZ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRLO_T_AUSZ
*  INTO TABLE @DATA(IT_TRLO_T_AUSZ2).
*--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_TRLO_T_AUSZ INDEX 1 INTO DATA(WA_TRLO_T_AUSZ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRLO_T_AUSZ>-AUGBL = 1.
<TRLO_T_AUSZ>-AUGDT = 1.
<TRLO_T_AUSZ>-BELNR = 1.
<TRLO_T_AUSZ>-BUKRS = 1.
<TRLO_T_AUSZ>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRLO_T_AUSZ-BUZEI, sy-vline,
  WA_TRLO_T_AUSZ-SKNTO, sy-vline,
  WA_TRLO_T_AUSZ-WSKTO, sy-vline,
  WA_TRLO_T_AUSZ-RDIFF, sy-vline,
  WA_TRLO_T_AUSZ-SKNT2, sy-vline,
  WA_TRLO_T_AUSZ-SKNT3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRLO_T_AUSZ 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_TRLO_T_AUSZ 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_TRLO_T_AUSZ INTO WA_TRLO_T_AUSZ.


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

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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field SKNTO
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-SKNTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-SKNTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field WSKTO
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-WSKTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-WSKTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field RDIFF
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-RDIFF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-RDIFF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field SKNT2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-SKNT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-SKNT2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field SKNT3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-SKNT3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-SKNT3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field RDIF2
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-RDIF2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-RDIF2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field RDIF3
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-RDIF3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-RDIF3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field QBSHB
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-QBSHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-QBSHB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field PENLC1
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-PENLC1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-PENLC1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field PENLC2
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-PENLC2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-PENLC2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field PENLC3
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-PENLC3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-PENLC3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field PENFC
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_TRLO_T_AUSZ-PENFC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRLO_T_AUSZ-PENFC.
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_TRLO_T_AUSZ_STR, 
AUGBL TYPE STRING,
AUGDT TYPE STRING,
BELNR TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
SKNTO TYPE STRING,
WSKTO TYPE STRING,
RDIFF TYPE STRING,
SKNT2 TYPE STRING,
SKNT3 TYPE STRING,
RDIF2 TYPE STRING,
RDIF3 TYPE STRING,
QBSHB TYPE STRING,
PENLC1 TYPE STRING,
PENLC2 TYPE STRING,
PENLC3 TYPE STRING,
PENFC TYPE STRING,
PENDAYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRLO_T_AUSZ_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_TRLO_T_AUSZ_STR-AUGBL sy-vline 
WA_TRLO_T_AUSZ_STR-AUGDT sy-vline 
WA_TRLO_T_AUSZ_STR-BELNR sy-vline 
WA_TRLO_T_AUSZ_STR-BUKRS sy-vline 
WA_TRLO_T_AUSZ_STR-GJAHR sy-vline 
WA_TRLO_T_AUSZ_STR-BUZEI sy-vline 
WA_TRLO_T_AUSZ_STR-SKNTO sy-vline 
WA_TRLO_T_AUSZ_STR-WSKTO sy-vline 
WA_TRLO_T_AUSZ_STR-RDIFF sy-vline 
WA_TRLO_T_AUSZ_STR-SKNT2 sy-vline 
WA_TRLO_T_AUSZ_STR-SKNT3 sy-vline 
WA_TRLO_T_AUSZ_STR-RDIF2 sy-vline 
WA_TRLO_T_AUSZ_STR-RDIF3 sy-vline 
WA_TRLO_T_AUSZ_STR-QBSHB sy-vline 
WA_TRLO_T_AUSZ_STR-PENLC1 sy-vline 
WA_TRLO_T_AUSZ_STR-PENLC2 sy-vline 
WA_TRLO_T_AUSZ_STR-PENLC3 sy-vline 
WA_TRLO_T_AUSZ_STR-PENFC sy-vline 
WA_TRLO_T_AUSZ_STR-PENDAYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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