ABAP Select data from SAP table /IBS/TRB_SHEET into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /IBS/TRB_SHEET 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 /IBS/TRB_SHEET. 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 /IBS/TRB_SHEET 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_/IBS/TRB_SHEET TYPE STANDARD TABLE OF /IBS/TRB_SHEET,
      WA_/IBS/TRB_SHEET TYPE /IBS/TRB_SHEET,
      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: </IBS/TRB_SHEET> TYPE /IBS/TRB_SHEET.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /IBS/TRB_SHEET
  INTO TABLE IT_/IBS/TRB_SHEET.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /IBS/TRB_SHEET
*  INTO TABLE @DATA(IT_/IBS/TRB_SHEET2).
*--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_/IBS/TRB_SHEET INDEX 1 INTO DATA(WA_/IBS/TRB_SHEET2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/IBS/TRB_SHEET ASSIGNING </IBS/TRB_SHEET>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</IBS/TRB_SHEET>-MANDANT = 1.
</IBS/TRB_SHEET>-SHEETNR = 1.
</IBS/TRB_SHEET>-POSIT = 1.
</IBS/TRB_SHEET>-DUE_DATE = 1.
</IBS/TRB_SHEET>-SIGN_DEB_CRED = 1.

ENDLOOP.

LOOP AT IT_/IBS/TRB_SHEET INTO WA_/IBS/TRB_SHEET.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/IBS/TRB_SHEET-CURRENCY, sy-vline,
  WA_/IBS/TRB_SHEET-RATE, sy-vline,
  WA_/IBS/TRB_SHEET-EXPECT, sy-vline,
  WA_/IBS/TRB_SHEET-PERCENT, sy-vline,
  WA_/IBS/TRB_SHEET-PRESENT_VAL, sy-vline,
  WA_/IBS/TRB_SHEET-UNWINDING, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/IBS/TRB_SHEET 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_/IBS/TRB_SHEET 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_/IBS/TRB_SHEET INTO WA_/IBS/TRB_SHEET.


*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 SHEETNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/TRB_SHEET-SHEETNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/TRB_SHEET-SHEETNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field POSIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/IBS/TRB_SHEET-POSIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/IBS/TRB_SHEET-POSIT.
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_/IBS/TRB_SHEET_STR, 
MANDANT TYPE STRING,
SHEETNR TYPE STRING,
POSIT TYPE STRING,
DUE_DATE TYPE STRING,
SIGN_DEB_CRED TYPE STRING,
CURRENCY TYPE STRING,
RATE TYPE STRING,
EXPECT TYPE STRING,
PERCENT TYPE STRING,
PRESENT_VAL TYPE STRING,
UNWINDING TYPE STRING,
UNWINDING_MEM TYPE STRING,
CFTYP TYPE STRING,
CFCAT TYPE STRING,
ANUSR TYPE STRING,
ANDAT TYPE STRING,
ANUHR TYPE STRING,
ANHER TYPE STRING,
AEUSR TYPE STRING,
AEDAT TYPE STRING,
AEUHR TYPE STRING,
AEHER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/IBS/TRB_SHEET_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_/IBS/TRB_SHEET_STR-MANDANT sy-vline 
WA_/IBS/TRB_SHEET_STR-SHEETNR sy-vline 
WA_/IBS/TRB_SHEET_STR-POSIT sy-vline 
WA_/IBS/TRB_SHEET_STR-DUE_DATE sy-vline 
WA_/IBS/TRB_SHEET_STR-SIGN_DEB_CRED sy-vline 
WA_/IBS/TRB_SHEET_STR-CURRENCY sy-vline 
WA_/IBS/TRB_SHEET_STR-RATE sy-vline 
WA_/IBS/TRB_SHEET_STR-EXPECT sy-vline 
WA_/IBS/TRB_SHEET_STR-PERCENT sy-vline 
WA_/IBS/TRB_SHEET_STR-PRESENT_VAL sy-vline 
WA_/IBS/TRB_SHEET_STR-UNWINDING sy-vline 
WA_/IBS/TRB_SHEET_STR-UNWINDING_MEM sy-vline 
WA_/IBS/TRB_SHEET_STR-CFTYP sy-vline 
WA_/IBS/TRB_SHEET_STR-CFCAT sy-vline 
WA_/IBS/TRB_SHEET_STR-ANUSR sy-vline 
WA_/IBS/TRB_SHEET_STR-ANDAT sy-vline 
WA_/IBS/TRB_SHEET_STR-ANUHR sy-vline 
WA_/IBS/TRB_SHEET_STR-ANHER sy-vline 
WA_/IBS/TRB_SHEET_STR-AEUSR sy-vline 
WA_/IBS/TRB_SHEET_STR-AEDAT sy-vline 
WA_/IBS/TRB_SHEET_STR-AEUHR sy-vline 
WA_/IBS/TRB_SHEET_STR-AEHER sy-vline      INTO ld_text SEPARATED BY SPACE.

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