ABAP Select data from SAP table RJMSST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJMSST
*  INTO TABLE @DATA(IT_RJMSST2).
*--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_RJMSST INDEX 1 INTO DATA(WA_RJMSST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJMSST>-TEXT001 = 1.
<RJMSST>-TEXT002 = 1.
<RJMSST>-TEXT003 = 1.
<RJMSST>-TEXT004 = 1.
<RJMSST>-TEXT005 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJMSST-TEXT006, sy-vline,
  WA_RJMSST-TEXT007, sy-vline,
  WA_RJMSST-TEXT008, sy-vline,
  WA_RJMSST-TEXT009, sy-vline,
  WA_RJMSST-TEXT010, sy-vline,
  WA_RJMSST-TEXT011, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJMSST 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_RJMSST 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_RJMSST INTO WA_RJMSST.


*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_RJMSST_STR, 
TEXT001 TYPE STRING,
TEXT002 TYPE STRING,
TEXT003 TYPE STRING,
TEXT004 TYPE STRING,
TEXT005 TYPE STRING,
TEXT006 TYPE STRING,
TEXT007 TYPE STRING,
TEXT008 TYPE STRING,
TEXT009 TYPE STRING,
TEXT010 TYPE STRING,
TEXT011 TYPE STRING,
TEXT012 TYPE STRING,
TEXT013 TYPE STRING,
TEXT014 TYPE STRING,
TEXT015 TYPE STRING,
TEXT016 TYPE STRING,
TEXT017 TYPE STRING,
TEXT030 TYPE STRING,
TEXT031 TYPE STRING,
TEXT032 TYPE STRING,
TEXT050 TYPE STRING,
TEXT051 TYPE STRING,
TEXT052 TYPE STRING,
TEXT053 TYPE STRING,
TEXT054 TYPE STRING,
TEXT055 TYPE STRING,
EINTRAG TYPE STRING,
EINTRAEGE TYPE STRING,
BEZ_OBJTYP TYPE STRING,
BEZ_OBJEKT TYPE STRING,
BEARBEITET TYPE STRING,
BEZ_KNOT1 TYPE STRING,
BEZ_KNOT2 TYPE STRING,
KEY_ZUORDN TYPE STRING,
BEZ_ZUORDN TYPE STRING,
X_BEZIRK TYPE STRING,
X_GEOEINH TYPE STRING,
X_LAND TYPE STRING,
X_ORT TYPE STRING,
X_PLZ TYPE STRING,
X_STRASSE TYPE STRING,
X_ROUTE TYPE STRING,
X_ABLADST TYPE STRING,
X_AUFBAU TYPE STRING,
MACO_FELD TYPE STRING,
X_TG_ROUTE TYPE STRING,
MINUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJMSST_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_RJMSST_STR-TEXT001 sy-vline 
WA_RJMSST_STR-TEXT002 sy-vline 
WA_RJMSST_STR-TEXT003 sy-vline 
WA_RJMSST_STR-TEXT004 sy-vline 
WA_RJMSST_STR-TEXT005 sy-vline 
WA_RJMSST_STR-TEXT006 sy-vline 
WA_RJMSST_STR-TEXT007 sy-vline 
WA_RJMSST_STR-TEXT008 sy-vline 
WA_RJMSST_STR-TEXT009 sy-vline 
WA_RJMSST_STR-TEXT010 sy-vline 
WA_RJMSST_STR-TEXT011 sy-vline 
WA_RJMSST_STR-TEXT012 sy-vline 
WA_RJMSST_STR-TEXT013 sy-vline 
WA_RJMSST_STR-TEXT014 sy-vline 
WA_RJMSST_STR-TEXT015 sy-vline 
WA_RJMSST_STR-TEXT016 sy-vline 
WA_RJMSST_STR-TEXT017 sy-vline 
WA_RJMSST_STR-TEXT030 sy-vline 
WA_RJMSST_STR-TEXT031 sy-vline 
WA_RJMSST_STR-TEXT032 sy-vline 
WA_RJMSST_STR-TEXT050 sy-vline 
WA_RJMSST_STR-TEXT051 sy-vline 
WA_RJMSST_STR-TEXT052 sy-vline 
WA_RJMSST_STR-TEXT053 sy-vline 
WA_RJMSST_STR-TEXT054 sy-vline 
WA_RJMSST_STR-TEXT055 sy-vline 
WA_RJMSST_STR-EINTRAG sy-vline 
WA_RJMSST_STR-EINTRAEGE sy-vline 
WA_RJMSST_STR-BEZ_OBJTYP sy-vline 
WA_RJMSST_STR-BEZ_OBJEKT sy-vline 
WA_RJMSST_STR-BEARBEITET sy-vline 
WA_RJMSST_STR-BEZ_KNOT1 sy-vline 
WA_RJMSST_STR-BEZ_KNOT2 sy-vline 
WA_RJMSST_STR-KEY_ZUORDN sy-vline 
WA_RJMSST_STR-BEZ_ZUORDN sy-vline 
WA_RJMSST_STR-X_BEZIRK sy-vline 
WA_RJMSST_STR-X_GEOEINH sy-vline 
WA_RJMSST_STR-X_LAND sy-vline 
WA_RJMSST_STR-X_ORT sy-vline 
WA_RJMSST_STR-X_PLZ sy-vline 
WA_RJMSST_STR-X_STRASSE sy-vline 
WA_RJMSST_STR-X_ROUTE sy-vline 
WA_RJMSST_STR-X_ABLADST sy-vline 
WA_RJMSST_STR-X_AUFBAU sy-vline 
WA_RJMSST_STR-MACO_FELD sy-vline 
WA_RJMSST_STR-X_TG_ROUTE sy-vline 
WA_RJMSST_STR-MINUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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