ABAP Select data from SAP table /ISDFPS/E1DIWPS_RV_CR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/E1DIWPS_RV_CR 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 /ISDFPS/E1DIWPS_RV_CR. 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 /ISDFPS/E1DIWPS_RV_CR 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_/ISDFPS/E1DIWPS_RV_CR TYPE STANDARD TABLE OF /ISDFPS/E1DIWPS_RV_CR,
      WA_/ISDFPS/E1DIWPS_RV_CR TYPE /ISDFPS/E1DIWPS_RV_CR,
      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: </ISDFPS/E1DIWPS_RV_CR> TYPE /ISDFPS/E1DIWPS_RV_CR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/ISDFPS/E1DIWPS_RV_CR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/E1DIWPS_RV_CR
  INTO TABLE IT_/ISDFPS/E1DIWPS_RV_CR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/E1DIWPS_RV_CR
*  INTO TABLE @DATA(IT_/ISDFPS/E1DIWPS_RV_CR2).
*--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_/ISDFPS/E1DIWPS_RV_CR INDEX 1 INTO DATA(WA_/ISDFPS/E1DIWPS_RV_CR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/E1DIWPS_RV_CR ASSIGNING </ISDFPS/E1DIWPS_RV_CR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/E1DIWPS_RV_CR>-MANDT = 1.
</ISDFPS/E1DIWPS_RV_CR>-IWERK = 1.
</ISDFPS/E1DIWPS_RV_CR>-WPID = 1.
</ISDFPS/E1DIWPS_RV_CR>-NOTIFID = 1.
</ISDFPS/E1DIWPS_RV_CR>-TL_COUNTER = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/E1DIWPS_RV_CR INTO WA_/ISDFPS/E1DIWPS_RV_CR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/E1DIWPS_RV_CR-PLNTY, sy-vline,
  WA_/ISDFPS/E1DIWPS_RV_CR-PLNNR, sy-vline,
  WA_/ISDFPS/E1DIWPS_RV_CR-PLNAL, sy-vline,
  WA_/ISDFPS/E1DIWPS_RV_CR-ZAEHL, sy-vline,
  WA_/ISDFPS/E1DIWPS_RV_CR-PARENT_PLNTY, sy-vline,
  WA_/ISDFPS/E1DIWPS_RV_CR-PARENT_PLNNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/E1DIWPS_RV_CR 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_/ISDFPS/E1DIWPS_RV_CR 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_/ISDFPS/E1DIWPS_RV_CR INTO WA_/ISDFPS/E1DIWPS_RV_CR.


*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_/ISDFPS/E1DIWPS_RV_CR_STR, 
MANDT TYPE STRING,
IWERK TYPE STRING,
WPID TYPE STRING,
NOTIFID TYPE STRING,
TL_COUNTER TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
ZAEHL TYPE STRING,
PARENT_PLNTY TYPE STRING,
PARENT_PLNNR TYPE STRING,
PARENT_PLNAL TYPE STRING,
PARENT_ZAEHL TYPE STRING,
NID_SUPTL TYPE STRING,
NID_CURTL TYPE STRING,
FET_FLG TYPE STRING,
EXPLOSION_NO TYPE STRING,
ORDER_NO TYPE STRING,
QMEL_ORDER_FLG TYPE STRING,
ORDER_STATUS_FLG TYPE STRING,
QMART TYPE STRING,
EXCL_FLG TYPE STRING,
NO_EXEC_FLG TYPE STRING,
ELIMSUBTR_FLG TYPE STRING,
DEL_FLG TYPE STRING,
AENAM TYPE STRING,
TMSTMP TYPE STRING,
AEDAT TYPE STRING,
REF_OBJECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/E1DIWPS_RV_CR_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_/ISDFPS/E1DIWPS_RV_CR_STR-MANDT sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-IWERK sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-WPID sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-NOTIFID sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-TL_COUNTER sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-PLNTY sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-PLNNR sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-PLNAL sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-ZAEHL sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-PARENT_PLNTY sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-PARENT_PLNNR sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-PARENT_PLNAL sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-PARENT_ZAEHL sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-NID_SUPTL sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-NID_CURTL sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-FET_FLG sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-EXPLOSION_NO sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-ORDER_NO sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-QMEL_ORDER_FLG sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-ORDER_STATUS_FLG sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-QMART sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-EXCL_FLG sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-NO_EXEC_FLG sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-ELIMSUBTR_FLG sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-DEL_FLG sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-AENAM sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-TMSTMP sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-AEDAT sy-vline 
WA_/ISDFPS/E1DIWPS_RV_CR_STR-REF_OBJECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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