ABAP Select data from SAP table CRMD_SERVICE_I into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMD_SERVICE_I
*  INTO TABLE @DATA(IT_CRMD_SERVICE_I2).
*--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_CRMD_SERVICE_I INDEX 1 INTO DATA(WA_CRMD_SERVICE_I2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMD_SERVICE_I>-CLIENT = 1.
<CRMD_SERVICE_I>-GUID = 1.
<CRMD_SERVICE_I>-SERVICE_I_INT = 1.
<CRMD_SERVICE_I>-DISPO_FLG = 1.
<CRMD_SERVICE_I>-CONFIRM_RELEVANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMD_SERVICE_I-INSPEC_RELEVANT, sy-vline,
  WA_CRMD_SERVICE_I-ITEM_PRIORITY, sy-vline,
  WA_CRMD_SERVICE_I-SRV_CONF_TIME, sy-vline,
  WA_CRMD_SERVICE_I-SRV_CONF_TUNIT, sy-vline,
  WA_CRMD_SERVICE_I-ASSIGNMENT_GUID, sy-vline,
  WA_CRMD_SERVICE_I-OVERTIME_CAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMD_SERVICE_I 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_CRMD_SERVICE_I 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_CRMD_SERVICE_I INTO WA_CRMD_SERVICE_I.


*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 SRV_CONF_TUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRMD_SERVICE_I-SRV_CONF_TUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMD_SERVICE_I-SRV_CONF_TUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WARRANTY_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMD_SERVICE_I-WARRANTY_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMD_SERVICE_I-WARRANTY_ID.
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_CRMD_SERVICE_I_STR, 
CLIENT TYPE STRING,
GUID TYPE STRING,
SERVICE_I_INT TYPE STRING,
DISPO_FLG TYPE STRING,
CONFIRM_RELEVANT TYPE STRING,
INSPEC_RELEVANT TYPE STRING,
ITEM_PRIORITY TYPE STRING,
SRV_CONF_TIME TYPE STRING,
SRV_CONF_TUNIT TYPE STRING,
ASSIGNMENT_GUID TYPE STRING,
OVERTIME_CAT TYPE STRING,
SRV_RENDERED_DATE TYPE STRING,
SERVICE_TYPE TYPE STRING,
VALUATION_TYPE TYPE STRING,
SRV_ESCAL TYPE STRING,
SRV_SERWI TYPE STRING,
SRV_RULE_ID TYPE STRING,
SRCL_SERVICE_PROFILE TYPE STRING,
SRCL_RESPONSE_PROFILE TYPE STRING,
SRV_ESCAL_CHANGED TYPE STRING,
SRV_SERWI_CHANGED TYPE STRING,
WARRANTY TYPE STRING,
WARRANTY_ID TYPE STRING,
CMPL_ITM_IS_COMPLETE TYPE STRING,
CMPL_ITM_IS_ENT TYPE STRING,
CMPL_ITM_IS_ACC TYPE STRING,
CMPL_ITM_IS_FOC TYPE STRING,
CMPL_ITM_IS_GOW TYPE STRING,
SERVICE_I_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMD_SERVICE_I_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_CRMD_SERVICE_I_STR-CLIENT sy-vline 
WA_CRMD_SERVICE_I_STR-GUID sy-vline 
WA_CRMD_SERVICE_I_STR-SERVICE_I_INT sy-vline 
WA_CRMD_SERVICE_I_STR-DISPO_FLG sy-vline 
WA_CRMD_SERVICE_I_STR-CONFIRM_RELEVANT sy-vline 
WA_CRMD_SERVICE_I_STR-INSPEC_RELEVANT sy-vline 
WA_CRMD_SERVICE_I_STR-ITEM_PRIORITY sy-vline 
WA_CRMD_SERVICE_I_STR-SRV_CONF_TIME sy-vline 
WA_CRMD_SERVICE_I_STR-SRV_CONF_TUNIT sy-vline 
WA_CRMD_SERVICE_I_STR-ASSIGNMENT_GUID sy-vline 
WA_CRMD_SERVICE_I_STR-OVERTIME_CAT sy-vline 
WA_CRMD_SERVICE_I_STR-SRV_RENDERED_DATE sy-vline 
WA_CRMD_SERVICE_I_STR-SERVICE_TYPE sy-vline 
WA_CRMD_SERVICE_I_STR-VALUATION_TYPE sy-vline 
WA_CRMD_SERVICE_I_STR-SRV_ESCAL sy-vline 
WA_CRMD_SERVICE_I_STR-SRV_SERWI sy-vline 
WA_CRMD_SERVICE_I_STR-SRV_RULE_ID sy-vline 
WA_CRMD_SERVICE_I_STR-SRCL_SERVICE_PROFILE sy-vline 
WA_CRMD_SERVICE_I_STR-SRCL_RESPONSE_PROFILE sy-vline 
WA_CRMD_SERVICE_I_STR-SRV_ESCAL_CHANGED sy-vline 
WA_CRMD_SERVICE_I_STR-SRV_SERWI_CHANGED sy-vline 
WA_CRMD_SERVICE_I_STR-WARRANTY sy-vline 
WA_CRMD_SERVICE_I_STR-WARRANTY_ID sy-vline 
WA_CRMD_SERVICE_I_STR-CMPL_ITM_IS_COMPLETE sy-vline 
WA_CRMD_SERVICE_I_STR-CMPL_ITM_IS_ENT sy-vline 
WA_CRMD_SERVICE_I_STR-CMPL_ITM_IS_ACC sy-vline 
WA_CRMD_SERVICE_I_STR-CMPL_ITM_IS_FOC sy-vline 
WA_CRMD_SERVICE_I_STR-CMPL_ITM_IS_GOW sy-vline 
WA_CRMD_SERVICE_I_STR-SERVICE_I_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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