ABAP Select data from SAP table SJCO_AS4RMR into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP SJCO_AS4RMR 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 SJCO_AS4RMR. 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 SJCO_AS4RMR 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_SJCO_AS4RMR TYPE STANDARD TABLE OF SJCO_AS4RMR,
      WA_SJCO_AS4RMR TYPE SJCO_AS4RMR,
      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: <SJCO_AS4RMR> TYPE SJCO_AS4RMR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SJCO_AS4RMR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SJCO_AS4RMR
  INTO TABLE IT_SJCO_AS4RMR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SJCO_AS4RMR
*  INTO TABLE @DATA(IT_SJCO_AS4RMR2).
*--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_SJCO_AS4RMR INDEX 1 INTO DATA(WA_SJCO_AS4RMR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SJCO_AS4RMR ASSIGNING <SJCO_AS4RMR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SJCO_AS4RMR>-RMACTSPACE = 1.
<SJCO_AS4RMR>-USERMGMT = 1.
<SJCO_AS4RMR>-CURRSIZE = 1.
<SJCO_AS4RMR>-PEAKSIZE = 1.
<SJCO_AS4RMR>-ROLLMGMT = 1.

ENDLOOP.

LOOP AT IT_SJCO_AS4RMR INTO WA_SJCO_AS4RMR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SJCO_AS4RMR-CURRSIZE, sy-vline,
  WA_SJCO_AS4RMR-PEAKSIZE, sy-vline,
  WA_SJCO_AS4RMR-RMFREELIST, sy-vline,
  WA_SJCO_AS4RMR-MAXELEM, sy-vline,
  WA_SJCO_AS4RMR-CURREL, sy-vline,
  WA_SJCO_AS4RMR-PEAKELEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SJCO_AS4RMR 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_SJCO_AS4RMR 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_SJCO_AS4RMR INTO WA_SJCO_AS4RMR.


*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_SJCO_AS4RMR_STR, 
RMACTSPACE TYPE STRING,
USERMGMT TYPE STRING,
CURRSIZE TYPE STRING,
PEAKSIZE TYPE STRING,
ROLLMGMT TYPE STRING,
CURRSIZE TYPE STRING,
PEAKSIZE TYPE STRING,
RMFREELIST TYPE STRING,
MAXELEM TYPE STRING,
CURREL TYPE STRING,
PEAKELEM TYPE STRING,
MAXBIGEL TYPE STRING,
CURBIGEL TYPE STRING,
CURTOTSP TYPE STRING,
RMFROLAREA TYPE STRING,
MAXELEM TYPE STRING,
CURREL TYPE STRING,
PEAKELEM TYPE STRING,
MAXBIGEL TYPE STRING,
CURBIGEL TYPE STRING,
CURTOTSP TYPE STRING,
ROLMGMTINT TYPE STRING,
SHMSEGSIZE TYPE STRING,
RACREASIZE TYPE STRING,
RAEXTSIZE TYPE STRING,
SHMSEGKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SJCO_AS4RMR_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_SJCO_AS4RMR_STR-RMACTSPACE sy-vline 
WA_SJCO_AS4RMR_STR-USERMGMT sy-vline 
WA_SJCO_AS4RMR_STR-CURRSIZE sy-vline 
WA_SJCO_AS4RMR_STR-PEAKSIZE sy-vline 
WA_SJCO_AS4RMR_STR-ROLLMGMT sy-vline 
WA_SJCO_AS4RMR_STR-CURRSIZE sy-vline 
WA_SJCO_AS4RMR_STR-PEAKSIZE sy-vline 
WA_SJCO_AS4RMR_STR-RMFREELIST sy-vline 
WA_SJCO_AS4RMR_STR-MAXELEM sy-vline 
WA_SJCO_AS4RMR_STR-CURREL sy-vline 
WA_SJCO_AS4RMR_STR-PEAKELEM sy-vline 
WA_SJCO_AS4RMR_STR-MAXBIGEL sy-vline 
WA_SJCO_AS4RMR_STR-CURBIGEL sy-vline 
WA_SJCO_AS4RMR_STR-CURTOTSP sy-vline 
WA_SJCO_AS4RMR_STR-RMFROLAREA sy-vline 
WA_SJCO_AS4RMR_STR-MAXELEM sy-vline 
WA_SJCO_AS4RMR_STR-CURREL sy-vline 
WA_SJCO_AS4RMR_STR-PEAKELEM sy-vline 
WA_SJCO_AS4RMR_STR-MAXBIGEL sy-vline 
WA_SJCO_AS4RMR_STR-CURBIGEL sy-vline 
WA_SJCO_AS4RMR_STR-CURTOTSP sy-vline 
WA_SJCO_AS4RMR_STR-ROLMGMTINT sy-vline 
WA_SJCO_AS4RMR_STR-SHMSEGSIZE sy-vline 
WA_SJCO_AS4RMR_STR-RACREASIZE sy-vline 
WA_SJCO_AS4RMR_STR-RAEXTSIZE sy-vline 
WA_SJCO_AS4RMR_STR-SHMSEGKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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