ABAP Select data from SAP table DRMSISST into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DRMSISST 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 DRMSISST. 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 DRMSISST 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_DRMSISST TYPE STANDARD TABLE OF DRMSISST,
      WA_DRMSISST TYPE DRMSISST,
      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: <DRMSISST> TYPE DRMSISST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DRMSISST
*  INTO TABLE @DATA(IT_DRMSISST2).
*--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_DRMSISST INDEX 1 INTO DATA(WA_DRMSISST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DRMSISST>-SDQTAPP = 1.
<DRMSISST>-SDAMAPP = 1.
<DRMSISST>-SDQTCLM = 1.
<DRMSISST>-SDAMCLM = 1.
<DRMSISST>-PPQTCR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DRMSISST-PPAMCR, sy-vline,
  WA_DRMSISST-PPQTDB, sy-vline,
  WA_DRMSISST-PPAMDB, sy-vline,
  WA_DRMSISST-BLQTCLM, sy-vline,
  WA_DRMSISST-BLAMCLM, sy-vline,
  WA_DRMSISST-STQTNL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DRMSISST 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_DRMSISST 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_DRMSISST INTO WA_DRMSISST.


*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.

*Conversion exit CUNIT, internal->external for field BASME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DRMSISST-BASME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DRMSISST-BASME.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_DRMSISST_STR, 
SDQTAPP TYPE STRING,
SDAMAPP TYPE STRING,
SDQTCLM TYPE STRING,
SDAMCLM TYPE STRING,
PPQTCR TYPE STRING,
PPAMCR TYPE STRING,
PPQTDB TYPE STRING,
PPAMDB TYPE STRING,
BLQTCLM TYPE STRING,
BLAMCLM TYPE STRING,
STQTNL TYPE STRING,
STQTBP TYPE STRING,
STAMNL TYPE STRING,
STAMBP TYPE STRING,
ERTQTNL TYPE STRING,
ERTQTBP TYPE STRING,
ERTAMNL TYPE STRING,
RTQTBKP TYPE STRING,
RTNMQYGR TYPE STRING,
RTBPQYCM TYPE STRING,
DRTAMNL TYPE STRING,
DRTAMBP TYPE STRING,
DRTQYNAP TYPE STRING,
DRTAMBAP TYPE STRING,
SIQYNLGI TYPE STRING,
SIQYNLIV TYPE STRING,
SIAMNL TYPE STRING,
SIQYBPGI TYPE STRING,
SIQYBPIV TYPE STRING,
SIAMBP TYPE STRING,
PCRQYNL TYPE STRING,
PCRQYBP TYPE STRING,
NCRQYNL TYPE STRING,
NCRQYBP TYPE STRING,
STQYNLIV TYPE STRING,
STQYBPIV TYPE STRING,
STAMNLIV TYPE STRING,
STAMBPIV TYPE STRING,
STQYNLGI TYPE STRING,
STQYBPGI TYPE STRING,
DSQYNL TYPE STRING,
DSAMNL TYPE STRING,
DSQYBP TYPE STRING,
DSAMBP TYPE STRING,
STWAE TYPE STRING,
BASME TYPE STRING,
STDSQYNL TYPE STRING,
STDSAMNL TYPE STRING,
STDSQYBP TYPE STRING,
STDSAMBP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DRMSISST_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_DRMSISST_STR-SDQTAPP sy-vline 
WA_DRMSISST_STR-SDAMAPP sy-vline 
WA_DRMSISST_STR-SDQTCLM sy-vline 
WA_DRMSISST_STR-SDAMCLM sy-vline 
WA_DRMSISST_STR-PPQTCR sy-vline 
WA_DRMSISST_STR-PPAMCR sy-vline 
WA_DRMSISST_STR-PPQTDB sy-vline 
WA_DRMSISST_STR-PPAMDB sy-vline 
WA_DRMSISST_STR-BLQTCLM sy-vline 
WA_DRMSISST_STR-BLAMCLM sy-vline 
WA_DRMSISST_STR-STQTNL sy-vline 
WA_DRMSISST_STR-STQTBP sy-vline 
WA_DRMSISST_STR-STAMNL sy-vline 
WA_DRMSISST_STR-STAMBP sy-vline 
WA_DRMSISST_STR-ERTQTNL sy-vline 
WA_DRMSISST_STR-ERTQTBP sy-vline 
WA_DRMSISST_STR-ERTAMNL sy-vline 
WA_DRMSISST_STR-RTQTBKP sy-vline 
WA_DRMSISST_STR-RTNMQYGR sy-vline 
WA_DRMSISST_STR-RTBPQYCM sy-vline 
WA_DRMSISST_STR-DRTAMNL sy-vline 
WA_DRMSISST_STR-DRTAMBP sy-vline 
WA_DRMSISST_STR-DRTQYNAP sy-vline 
WA_DRMSISST_STR-DRTAMBAP sy-vline 
WA_DRMSISST_STR-SIQYNLGI sy-vline 
WA_DRMSISST_STR-SIQYNLIV sy-vline 
WA_DRMSISST_STR-SIAMNL sy-vline 
WA_DRMSISST_STR-SIQYBPGI sy-vline 
WA_DRMSISST_STR-SIQYBPIV sy-vline 
WA_DRMSISST_STR-SIAMBP sy-vline 
WA_DRMSISST_STR-PCRQYNL sy-vline 
WA_DRMSISST_STR-PCRQYBP sy-vline 
WA_DRMSISST_STR-NCRQYNL sy-vline 
WA_DRMSISST_STR-NCRQYBP sy-vline 
WA_DRMSISST_STR-STQYNLIV sy-vline 
WA_DRMSISST_STR-STQYBPIV sy-vline 
WA_DRMSISST_STR-STAMNLIV sy-vline 
WA_DRMSISST_STR-STAMBPIV sy-vline 
WA_DRMSISST_STR-STQYNLGI sy-vline 
WA_DRMSISST_STR-STQYBPGI sy-vline 
WA_DRMSISST_STR-DSQYNL sy-vline 
WA_DRMSISST_STR-DSAMNL sy-vline 
WA_DRMSISST_STR-DSQYBP sy-vline 
WA_DRMSISST_STR-DSAMBP sy-vline 
WA_DRMSISST_STR-STWAE sy-vline 
WA_DRMSISST_STR-BASME sy-vline 
WA_DRMSISST_STR-STDSQYNL sy-vline 
WA_DRMSISST_STR-STDSAMNL sy-vline 
WA_DRMSISST_STR-STDSQYBP sy-vline 
WA_DRMSISST_STR-STDSAMBP sy-vline      INTO ld_text SEPARATED BY SPACE.

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