ABAP Select data from SAP table RCPS_SES_REQ_ATTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCPS_SES_REQ_ATTR
*  INTO TABLE @DATA(IT_RCPS_SES_REQ_ATTR2).
*--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_RCPS_SES_REQ_ATTR INDEX 1 INTO DATA(WA_RCPS_SES_REQ_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCPS_SES_REQ_ATTR>-EXTERNAL_KEY = 1.
<RCPS_SES_REQ_ATTR>-PVGUID = 1.
<RCPS_SES_REQ_ATTR>-PNTYPE = 1.
<RCPS_SES_REQ_ATTR>-EHS_RECN = 1.
<RCPS_SES_REQ_ATTR>-SUBCAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCPS_SES_REQ_ATTR-AENNR, sy-vline,
  WA_RCPS_SES_REQ_ATTR-STATUS, sy-vline,
  WA_RCPS_SES_REQ_ATTR-OTYPE_ORGID, sy-vline,
  WA_RCPS_SES_REQ_ATTR-REALO, sy-vline,
  WA_RCPS_SES_REQ_ATTR-PS_POSID, sy-vline,
  WA_RCPS_SES_REQ_ATTR-RCP_CREABY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCPS_SES_REQ_ATTR 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_RCPS_SES_REQ_ATTR 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_RCPS_SES_REQ_ATTR INTO WA_RCPS_SES_REQ_ATTR.


*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_RCPS_SES_REQ_ATTR_STR, 
EXTERNAL_KEY TYPE STRING,
PVGUID TYPE STRING,
PNTYPE TYPE STRING,
EHS_RECN TYPE STRING,
SUBCAT TYPE STRING,
AENNR TYPE STRING,
STATUS TYPE STRING,
OTYPE_ORGID TYPE STRING,
REALO TYPE STRING,
PS_POSID TYPE STRING,
RCP_CREABY TYPE STRING,
RCP_CHNGBY TYPE STRING,
PREF_RCP_FLG TYPE STRING,
CONS_FLG TYPE STRING,
GRP_CLASS TYPE STRING,
GRP_IDENT TYPE STRING,
GRP_DOCUMENT TYPE STRING,
GRP_ASCOPE TYPE STRING,
GRP_PROPARAM TYPE STRING,
GRP_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCPS_SES_REQ_ATTR_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_RCPS_SES_REQ_ATTR_STR-EXTERNAL_KEY sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-PVGUID sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-PNTYPE sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-EHS_RECN sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-SUBCAT sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-AENNR sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-STATUS sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-OTYPE_ORGID sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-REALO sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-PS_POSID sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-RCP_CREABY sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-RCP_CHNGBY sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-PREF_RCP_FLG sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-CONS_FLG sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-GRP_CLASS sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-GRP_IDENT sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-GRP_DOCUMENT sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-GRP_ASCOPE sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-GRP_PROPARAM sy-vline 
WA_RCPS_SES_REQ_ATTR_STR-GRP_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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