ABAP Select data from SAP table RCAPITAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCAPITAL
*  INTO TABLE @DATA(IT_RCAPITAL2).
*--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_RCAPITAL INDEX 1 INTO DATA(WA_RCAPITAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCAPITAL>-ICAPMANUPROC = 1.
<RCAPITAL>-MCAPREASON = 1.
<RCAPITAL>-ACAPITALI = 1.
<RCAPITAL>-DCAPKYDTE = 1.
<RCAPITAL>-DENDPROPO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCAPITAL-AINSTPROPO, sy-vline,
  WA_RCAPITAL-PKAPEFFINTRT, sy-vline,
  WA_RCAPITAL-MKAPEFFINTMT, sy-vline,
  WA_RCAPITAL-DENDWOCAP, sy-vline,
  WA_RCAPITAL-AINSTWOCAP, sy-vline,
  WA_RCAPITAL-IENDPROPO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCAPITAL 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_RCAPITAL 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_RCAPITAL INTO WA_RCAPITAL.


*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_RCAPITAL_STR, 
ICAPMANUPROC TYPE STRING,
MCAPREASON TYPE STRING,
ACAPITALI TYPE STRING,
DCAPKYDTE TYPE STRING,
DENDPROPO TYPE STRING,
AINSTPROPO TYPE STRING,
PKAPEFFINTRT TYPE STRING,
MKAPEFFINTMT TYPE STRING,
DENDWOCAP TYPE STRING,
AINSTWOCAP TYPE STRING,
IENDPROPO TYPE STRING,
IINSTPROPO TYPE STRING,
NINSTPROPO TYPE STRING,
NINSTWOCAP TYPE STRING,
NOVRTWOCAP TYPE STRING,
NOVRTPROPO TYPE STRING,
DSTARTREP TYPE STRING,
DFIRST_DISB TYPE STRING,
DOEFFINTPYMNP TYPE STRING,
OEFFINTPYMNP TYPE STRING,
NMAXTERM TYPE STRING,
AREIMBURSEMENT TYPE STRING,
AINSURANCE_CONTR TYPE STRING,
ADIFFERENCE TYPE STRING,
ICONSIDER TYPE STRING,
CALCULATION_DATE TYPE STRING,
UCLICURR TYPE STRING,
CLI_FLOW_SBEWART TYPE STRING,
CLI_CHANGED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCAPITAL_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_RCAPITAL_STR-ICAPMANUPROC sy-vline 
WA_RCAPITAL_STR-MCAPREASON sy-vline 
WA_RCAPITAL_STR-ACAPITALI sy-vline 
WA_RCAPITAL_STR-DCAPKYDTE sy-vline 
WA_RCAPITAL_STR-DENDPROPO sy-vline 
WA_RCAPITAL_STR-AINSTPROPO sy-vline 
WA_RCAPITAL_STR-PKAPEFFINTRT sy-vline 
WA_RCAPITAL_STR-MKAPEFFINTMT sy-vline 
WA_RCAPITAL_STR-DENDWOCAP sy-vline 
WA_RCAPITAL_STR-AINSTWOCAP sy-vline 
WA_RCAPITAL_STR-IENDPROPO sy-vline 
WA_RCAPITAL_STR-IINSTPROPO sy-vline 
WA_RCAPITAL_STR-NINSTPROPO sy-vline 
WA_RCAPITAL_STR-NINSTWOCAP sy-vline 
WA_RCAPITAL_STR-NOVRTWOCAP sy-vline 
WA_RCAPITAL_STR-NOVRTPROPO sy-vline 
WA_RCAPITAL_STR-DSTARTREP sy-vline 
WA_RCAPITAL_STR-DFIRST_DISB sy-vline 
WA_RCAPITAL_STR-DOEFFINTPYMNP sy-vline 
WA_RCAPITAL_STR-OEFFINTPYMNP sy-vline 
WA_RCAPITAL_STR-NMAXTERM sy-vline 
WA_RCAPITAL_STR-AREIMBURSEMENT sy-vline 
WA_RCAPITAL_STR-AINSURANCE_CONTR sy-vline 
WA_RCAPITAL_STR-ADIFFERENCE sy-vline 
WA_RCAPITAL_STR-ICONSIDER sy-vline 
WA_RCAPITAL_STR-CALCULATION_DATE sy-vline 
WA_RCAPITAL_STR-UCLICURR sy-vline 
WA_RCAPITAL_STR-CLI_FLOW_SBEWART sy-vline 
WA_RCAPITAL_STR-CLI_CHANGED sy-vline      INTO ld_text SEPARATED BY SPACE.

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