ABAP Select data from SAP table CRMS4_SUBSCRIPTION_ORDER_REQ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMS4_SUBSCRIPTION_ORDER_REQ 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 CRMS4_SUBSCRIPTION_ORDER_REQ. 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 CRMS4_SUBSCRIPTION_ORDER_REQ 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_CRMS4_SUBSCRIPTION_ORDER_REQ TYPE STANDARD TABLE OF CRMS4_SUBSCRIPTION_ORDER_REQ,
      WA_CRMS4_SUBSCRIPTION_ORDER_REQ TYPE CRMS4_SUBSCRIPTION_ORDER_REQ,
      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: <CRMS4_SUBSCRIPTION_ORDER_REQ> TYPE CRMS4_SUBSCRIPTION_ORDER_REQ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMS4_SUBSCRIPTION_ORDER_REQ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMS4_SUBSCRIPTION_ORDER_REQ
  INTO TABLE IT_CRMS4_SUBSCRIPTION_ORDER_REQ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS4_SUBSCRIPTION_ORDER_REQ
*  INTO TABLE @DATA(IT_CRMS4_SUBSCRIPTION_ORDER_REQ2).
*--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_CRMS4_SUBSCRIPTION_ORDER_REQ INDEX 1 INTO DATA(WA_CRMS4_SUBSCRIPTION_ORDER_REQ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMS4_SUBSCRIPTION_ORDER_REQ ASSIGNING <CRMS4_SUBSCRIPTION_ORDER_REQ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS4_SUBSCRIPTION_ORDER_REQ>-ORDER_DATA = 1.
<CRMS4_SUBSCRIPTION_ORDER_REQ>-GEN_DATA = 1.
<CRMS4_SUBSCRIPTION_ORDER_REQ>-SOLD_TO_PARTY = 1.
<CRMS4_SUBSCRIPTION_ORDER_REQ>-PARTNER_NO = 1.
<CRMS4_SUBSCRIPTION_ORDER_REQ>-ADDR_NR = 1.

ENDLOOP.

LOOP AT IT_CRMS4_SUBSCRIPTION_ORDER_REQ INTO WA_CRMS4_SUBSCRIPTION_ORDER_REQ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS4_SUBSCRIPTION_ORDER_REQ-EMPLOYEE, sy-vline,
  WA_CRMS4_SUBSCRIPTION_ORDER_REQ-ORGMAN, sy-vline,
  WA_CRMS4_SUBSCRIPTION_ORDER_REQ-SALES_ORG, sy-vline,
  WA_CRMS4_SUBSCRIPTION_ORDER_REQ-SALES_OFFICE, sy-vline,
  WA_CRMS4_SUBSCRIPTION_ORDER_REQ-SALES_GROUP, sy-vline,
  WA_CRMS4_SUBSCRIPTION_ORDER_REQ-DIS_CHANNEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS4_SUBSCRIPTION_ORDER_REQ 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_CRMS4_SUBSCRIPTION_ORDER_REQ 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_CRMS4_SUBSCRIPTION_ORDER_REQ INTO WA_CRMS4_SUBSCRIPTION_ORDER_REQ.


*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 ALPHA, internal->external for field PARTNER_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4_SUBSCRIPTION_ORDER_REQ-PARTNER_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4_SUBSCRIPTION_ORDER_REQ-PARTNER_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDR_NR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4_SUBSCRIPTION_ORDER_REQ-ADDR_NR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4_SUBSCRIPTION_ORDER_REQ-ADDR_NR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EMPLOYEE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMS4_SUBSCRIPTION_ORDER_REQ-EMPLOYEE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS4_SUBSCRIPTION_ORDER_REQ-EMPLOYEE.
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_CRMS4_SUBSCRIPTION_ORDER_REQ_STR, 
ORDER_DATA TYPE STRING,
GEN_DATA TYPE STRING,
SOLD_TO_PARTY TYPE STRING,
PARTNER_NO TYPE STRING,
ADDR_NR TYPE STRING,
EMPLOYEE TYPE STRING,
ORGMAN TYPE STRING,
SALES_ORG TYPE STRING,
SALES_OFFICE TYPE STRING,
SALES_GROUP TYPE STRING,
DIS_CHANNEL TYPE STRING,
DIVISION TYPE STRING,
PROCESS_TYPE TYPE STRING,
SERV_H_DUMMY_PS TYPE STRING,
ITEMS TYPE STRING,
ALT_PARTNERS TYPE STRING,
AC_ASSIGN TYPE STRING,
CONTROL_DATA TYPE STRING,
EXPLODE_SUBITEMS TYPE STRING,
SUBMIT_ORDER TYPE STRING,
SAVE_ORDER TYPE STRING,
COMMIT_AFTER_SAVE TYPE STRING,
SAVE_WITH_ERRORS TYPE STRING,
NO_BDOC_SEND TYPE STRING,
DEACTIVATE_INTERFACE_CHECKS TYPE STRING,
NO_TERMINATION_WHEN_ERROR TYPE STRING,
CHECK_CONFIG TYPE STRING,
NO_INIT TYPE STRING,
DETERMINE_RATING_AREA TYPE STRING,
USE_TEMPLATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS4_SUBSCRIPTION_ORDER_REQ_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_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-ORDER_DATA sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-GEN_DATA sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-SOLD_TO_PARTY sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-PARTNER_NO sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-ADDR_NR sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-EMPLOYEE sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-ORGMAN sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-SALES_ORG sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-SALES_OFFICE sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-SALES_GROUP sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-DIS_CHANNEL sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-DIVISION sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-PROCESS_TYPE sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-SERV_H_DUMMY_PS sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-ITEMS sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-ALT_PARTNERS sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-AC_ASSIGN sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-CONTROL_DATA sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-EXPLODE_SUBITEMS sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-SUBMIT_ORDER sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-SAVE_ORDER sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-COMMIT_AFTER_SAVE sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-SAVE_WITH_ERRORS sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-NO_BDOC_SEND sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-DEACTIVATE_INTERFACE_CHECKS sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-NO_TERMINATION_WHEN_ERROR sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-CHECK_CONFIG sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-NO_INIT sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-DETERMINE_RATING_AREA sy-vline 
WA_CRMS4_SUBSCRIPTION_ORDER_REQ_STR-USE_TEMPLATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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