ABAP Select data from SAP table RINTER_ADD_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RINTER_ADD_HEADER
*  INTO TABLE @DATA(IT_RINTER_ADD_HEADER2).
*--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_RINTER_ADD_HEADER INDEX 1 INTO DATA(WA_RINTER_ADD_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RINTER_ADD_HEADER>-INCLUSIV = 1.
<RINTER_ADD_HEADER>-INDICATOR_REQUIRED = 1.
<RINTER_ADD_HEADER>-MMAXNORISKMS = 1.
<RINTER_ADD_HEADER>-MNUMRTS = 1.
<RINTER_ADD_HEADER>-SUNTGRN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RINTER_ADD_HEADER-APT_BTR_BIS, sy-vline,
  WA_RINTER_ADD_HEADER-ITEM_DEBIT_AMT, sy-vline,
  WA_RINTER_ADD_HEADER-ITEM_CREDIT_AMT, sy-vline,
  WA_RINTER_ADD_HEADER-NOTICE_LOCK_PERIOD, sy-vline,
  WA_RINTER_ADD_HEADER-NOTICE_PERIOD, sy-vline,
  WA_RINTER_ADD_HEADER-ROLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RINTER_ADD_HEADER 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_RINTER_ADD_HEADER 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_RINTER_ADD_HEADER INTO WA_RINTER_ADD_HEADER.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RINTER_ADD_HEADER_STR, 
INCLUSIV TYPE STRING,
INDICATOR_REQUIRED TYPE STRING,
MMAXNORISKMS TYPE STRING,
MNUMRTS TYPE STRING,
SUNTGRN TYPE STRING,
APT_BTR_BIS TYPE STRING,
ITEM_DEBIT_AMT TYPE STRING,
ITEM_CREDIT_AMT TYPE STRING,
NOTICE_LOCK_PERIOD TYPE STRING,
NOTICE_PERIOD TYPE STRING,
ROLE TYPE STRING,
ROLE_CORR TYPE STRING,
REPAY_DELAY TYPE STRING,
ITEM_MIN_REPAY TYPE STRING,
NMAXDEFPAYM TYPE STRING,
NMAXCAPPAYM TYPE STRING,
NMAXDEFMONTHS TYPE STRING,
TERM_MIN_VALUE TYPE STRING,
TERM_MIN_UNIT TYPE STRING,
TERM_MAX_VALUE TYPE STRING,
TERM_MAX_UNIT TYPE STRING,
TERM_MAX_VALUE_ALT TYPE STRING,
TERM_MAX_UNIT_ALT TYPE STRING,
AMT_REQU_CUR TYPE STRING,
AMT_REQU_MIN TYPE STRING,
AMT_REQU_MAX TYPE STRING,
AMT_REQU_SUP TYPE STRING,
BP_AGE_MIN TYPE STRING,
BP_AGE_MAX TYPE STRING,
CNCLTERM TYPE STRING,
CNCLTERM_ZE TYPE STRING,
SRHYEKA TYPE STRING,
PERIOD_4_CREATION TYPE STRING,
PERIOD_4_DISPLAY TYPE STRING,
LOCK_PERIOD TYPE STRING,
SCHEME_ID TYPE STRING,
DISB_CHNG_WARN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RINTER_ADD_HEADER_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_RINTER_ADD_HEADER_STR-INCLUSIV sy-vline 
WA_RINTER_ADD_HEADER_STR-INDICATOR_REQUIRED sy-vline 
WA_RINTER_ADD_HEADER_STR-MMAXNORISKMS sy-vline 
WA_RINTER_ADD_HEADER_STR-MNUMRTS sy-vline 
WA_RINTER_ADD_HEADER_STR-SUNTGRN sy-vline 
WA_RINTER_ADD_HEADER_STR-APT_BTR_BIS sy-vline 
WA_RINTER_ADD_HEADER_STR-ITEM_DEBIT_AMT sy-vline 
WA_RINTER_ADD_HEADER_STR-ITEM_CREDIT_AMT sy-vline 
WA_RINTER_ADD_HEADER_STR-NOTICE_LOCK_PERIOD sy-vline 
WA_RINTER_ADD_HEADER_STR-NOTICE_PERIOD sy-vline 
WA_RINTER_ADD_HEADER_STR-ROLE sy-vline 
WA_RINTER_ADD_HEADER_STR-ROLE_CORR sy-vline 
WA_RINTER_ADD_HEADER_STR-REPAY_DELAY sy-vline 
WA_RINTER_ADD_HEADER_STR-ITEM_MIN_REPAY sy-vline 
WA_RINTER_ADD_HEADER_STR-NMAXDEFPAYM sy-vline 
WA_RINTER_ADD_HEADER_STR-NMAXCAPPAYM sy-vline 
WA_RINTER_ADD_HEADER_STR-NMAXDEFMONTHS sy-vline 
WA_RINTER_ADD_HEADER_STR-TERM_MIN_VALUE sy-vline 
WA_RINTER_ADD_HEADER_STR-TERM_MIN_UNIT sy-vline 
WA_RINTER_ADD_HEADER_STR-TERM_MAX_VALUE sy-vline 
WA_RINTER_ADD_HEADER_STR-TERM_MAX_UNIT sy-vline 
WA_RINTER_ADD_HEADER_STR-TERM_MAX_VALUE_ALT sy-vline 
WA_RINTER_ADD_HEADER_STR-TERM_MAX_UNIT_ALT sy-vline 
WA_RINTER_ADD_HEADER_STR-AMT_REQU_CUR sy-vline 
WA_RINTER_ADD_HEADER_STR-AMT_REQU_MIN sy-vline 
WA_RINTER_ADD_HEADER_STR-AMT_REQU_MAX sy-vline 
WA_RINTER_ADD_HEADER_STR-AMT_REQU_SUP sy-vline 
WA_RINTER_ADD_HEADER_STR-BP_AGE_MIN sy-vline 
WA_RINTER_ADD_HEADER_STR-BP_AGE_MAX sy-vline 
WA_RINTER_ADD_HEADER_STR-CNCLTERM sy-vline 
WA_RINTER_ADD_HEADER_STR-CNCLTERM_ZE sy-vline 
WA_RINTER_ADD_HEADER_STR-SRHYEKA sy-vline 
WA_RINTER_ADD_HEADER_STR-PERIOD_4_CREATION sy-vline 
WA_RINTER_ADD_HEADER_STR-PERIOD_4_DISPLAY sy-vline 
WA_RINTER_ADD_HEADER_STR-LOCK_PERIOD sy-vline 
WA_RINTER_ADD_HEADER_STR-SCHEME_ID sy-vline 
WA_RINTER_ADD_HEADER_STR-DISB_CHNG_WARN sy-vline      INTO ld_text SEPARATED BY SPACE.

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