ABAP Select data from SAP table DELDYNPS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DELDYNPS
*  INTO TABLE @DATA(IT_DELDYNPS2).
*--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_DELDYNPS INDEX 1 INTO DATA(WA_DELDYNPS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DELDYNPS>-PROG = 1.
<DELDYNPS>-DNUM = 1.
<DELDYNPS>-TABNAME = 1.
<DELDYNPS>-D020SFLAG = 1.
<DELDYNPS>-TRDIRFLAG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DELDYNPS-DD02LFLAG, sy-vline,
  WA_DELDYNPS-MAINTFLAG, sy-vline,
  WA_DELDYNPS-CONTFLAG, sy-vline,
  WA_DELDYNPS-TVDIRFLAG, sy-vline,
  WA_DELDYNPS-TTABDEVC, sy-vline,
  WA_DELDYNPS-PTABDEVC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DELDYNPS 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_DELDYNPS 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_DELDYNPS INTO WA_DELDYNPS.


*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_DELDYNPS_STR, 
PROG TYPE STRING,
DNUM TYPE STRING,
TABNAME TYPE STRING,
D020SFLAG TYPE STRING,
TRDIRFLAG TYPE STRING,
DD02LFLAG TYPE STRING,
MAINTFLAG TYPE STRING,
CONTFLAG TYPE STRING,
TVDIRFLAG TYPE STRING,
TTABDEVC TYPE STRING,
PTABDEVC TYPE STRING,
PROGDEVC TYPE STRING,
LINES TYPE STRING,
EXCEPTFLAG TYPE STRING,
DELETED TYPE STRING,
AUTHOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DELDYNPS_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_DELDYNPS_STR-PROG sy-vline 
WA_DELDYNPS_STR-DNUM sy-vline 
WA_DELDYNPS_STR-TABNAME sy-vline 
WA_DELDYNPS_STR-D020SFLAG sy-vline 
WA_DELDYNPS_STR-TRDIRFLAG sy-vline 
WA_DELDYNPS_STR-DD02LFLAG sy-vline 
WA_DELDYNPS_STR-MAINTFLAG sy-vline 
WA_DELDYNPS_STR-CONTFLAG sy-vline 
WA_DELDYNPS_STR-TVDIRFLAG sy-vline 
WA_DELDYNPS_STR-TTABDEVC sy-vline 
WA_DELDYNPS_STR-PTABDEVC sy-vline 
WA_DELDYNPS_STR-PROGDEVC sy-vline 
WA_DELDYNPS_STR-LINES sy-vline 
WA_DELDYNPS_STR-EXCEPTFLAG sy-vline 
WA_DELDYNPS_STR-DELETED sy-vline 
WA_DELDYNPS_STR-AUTHOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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