ABAP Select data from SAP table T7ROA1 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7ROA1 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 T7ROA1. 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 T7ROA1 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_T7ROA1 TYPE STANDARD TABLE OF T7ROA1,
      WA_T7ROA1 TYPE T7ROA1,
      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: <T7ROA1> TYPE T7ROA1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7ROA1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7ROA1
  INTO TABLE IT_T7ROA1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7ROA1
*  INTO TABLE @DATA(IT_T7ROA12).
*--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_T7ROA1 INDEX 1 INTO DATA(WA_T7ROA12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7ROA1 ASSIGNING <T7ROA1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7ROA1>-MANDT = 1.
<T7ROA1>-LAUFD = 1.
<T7ROA1>-LAUFI = 1.
<T7ROA1>-VBLNR = 1.
<T7ROA1>-ZBUKR = 1.

ENDLOOP.

LOOP AT IT_T7ROA1 INTO WA_T7ROA1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7ROA1-HBKID, sy-vline,
  WA_T7ROA1-HKTID, sy-vline,
  WA_T7ROA1-UBNKL, sy-vline,
  WA_T7ROA1-UBKNT, sy-vline,
  WA_T7ROA1-EMFSL, sy-vline,
  WA_T7ROA1-BANKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7ROA1 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_T7ROA1 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_T7ROA1 INTO WA_T7ROA1.


*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 VBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7ROA1-VBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7ROA1-VBLNR.
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_T7ROA1_STR, 
MANDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
VBLNR TYPE STRING,
ZBUKR TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
UBNKL TYPE STRING,
UBKNT TYPE STRING,
EMFSL TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BKONT TYPE STRING,
BKREF TYPE STRING,
PSKTO TYPE STRING,
ZLSCH TYPE STRING,
LGART TYPE STRING,
PERNR TYPE STRING,
BETRG TYPE STRING,
LWAER TYPE STRING,
FBETR TYPE STRING,
WAERS TYPE STRING,
PTEXT TYPE STRING,
EMFTX TYPE STRING,
STRAS TYPE STRING,
BKPLZ TYPE STRING,
BKORT TYPE STRING,
ZIBAN TYPE STRING,
ZSWIF TYPE STRING,
FCODE TYPE STRING,
SEQNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7ROA1_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_T7ROA1_STR-MANDT sy-vline 
WA_T7ROA1_STR-LAUFD sy-vline 
WA_T7ROA1_STR-LAUFI sy-vline 
WA_T7ROA1_STR-VBLNR sy-vline 
WA_T7ROA1_STR-ZBUKR sy-vline 
WA_T7ROA1_STR-HBKID sy-vline 
WA_T7ROA1_STR-HKTID sy-vline 
WA_T7ROA1_STR-UBNKL sy-vline 
WA_T7ROA1_STR-UBKNT sy-vline 
WA_T7ROA1_STR-EMFSL sy-vline 
WA_T7ROA1_STR-BANKS sy-vline 
WA_T7ROA1_STR-BANKL sy-vline 
WA_T7ROA1_STR-BANKN sy-vline 
WA_T7ROA1_STR-BKONT sy-vline 
WA_T7ROA1_STR-BKREF sy-vline 
WA_T7ROA1_STR-PSKTO sy-vline 
WA_T7ROA1_STR-ZLSCH sy-vline 
WA_T7ROA1_STR-LGART sy-vline 
WA_T7ROA1_STR-PERNR sy-vline 
WA_T7ROA1_STR-BETRG sy-vline 
WA_T7ROA1_STR-LWAER sy-vline 
WA_T7ROA1_STR-FBETR sy-vline 
WA_T7ROA1_STR-WAERS sy-vline 
WA_T7ROA1_STR-PTEXT sy-vline 
WA_T7ROA1_STR-EMFTX sy-vline 
WA_T7ROA1_STR-STRAS sy-vline 
WA_T7ROA1_STR-BKPLZ sy-vline 
WA_T7ROA1_STR-BKORT sy-vline 
WA_T7ROA1_STR-ZIBAN sy-vline 
WA_T7ROA1_STR-ZSWIF sy-vline 
WA_T7ROA1_STR-FCODE sy-vline 
WA_T7ROA1_STR-SEQNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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