ABAP Select data from SAP table CRMT_SERVICECONTREV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_SERVICECONTREV
*  INTO TABLE @DATA(IT_CRMT_SERVICECONTREV2).
*--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_CRMT_SERVICECONTREV INDEX 1 INTO DATA(WA_CRMT_SERVICECONTREV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_SERVICECONTREV>-HEADER_GUID = 1.
<CRMT_SERVICECONTREV>-OBJECT_ID = 1.
<CRMT_SERVICECONTREV>-MAIN_ITEM_GUID = 1.
<CRMT_SERVICECONTREV>-ITEM_GUID = 1.
<CRMT_SERVICECONTREV>-ITEM_NO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_SERVICECONTREV-CONTRACT_START_DATE, sy-vline,
  WA_CRMT_SERVICECONTREV-CONTRACT_START_TZ, sy-vline,
  WA_CRMT_SERVICECONTREV-CONTRACT_END_DATE, sy-vline,
  WA_CRMT_SERVICECONTREV-CONTRACT_END_TZ, sy-vline,
  WA_CRMT_SERVICECONTREV-TARGET_QUANTITY, sy-vline,
  WA_CRMT_SERVICECONTREV-TARGET_QTY_UNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_SERVICECONTREV 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_CRMT_SERVICECONTREV 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_CRMT_SERVICECONTREV INTO WA_CRMT_SERVICECONTREV.


*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 OBJECT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SERVICECONTREV-OBJECT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SERVICECONTREV-OBJECT_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CONTRACT_START_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SERVICECONTREV-CONTRACT_START_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SERVICECONTREV-CONTRACT_START_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CONTRACT_END_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SERVICECONTREV-CONTRACT_END_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SERVICECONTREV-CONTRACT_END_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CALL_OFF_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SERVICECONTREV-CALL_OFF_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SERVICECONTREV-CALL_OFF_DATE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CALL_OFF_ORDER_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_SERVICECONTREV-CALL_OFF_ORDER_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_SERVICECONTREV-CALL_OFF_ORDER_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_CRMT_SERVICECONTREV_STR, 
HEADER_GUID TYPE STRING,
OBJECT_ID TYPE STRING,
MAIN_ITEM_GUID TYPE STRING,
ITEM_GUID TYPE STRING,
ITEM_NO TYPE STRING,
CONTRACT_START_DATE TYPE STRING,
CONTRACT_START_TZ TYPE STRING,
CONTRACT_END_DATE TYPE STRING,
CONTRACT_END_TZ TYPE STRING,
TARGET_QUANTITY TYPE STRING,
TARGET_QTY_UNIT TYPE STRING,
TARGET_VALUE TYPE STRING,
TARGET_VAL_CURR TYPE STRING,
CALL_OFF_DATE TYPE STRING,
CALL_OFF_TZ TYPE STRING,
CALL_OFF_QUANTITY TYPE STRING,
CALL_OFF_QTY_UNIT TYPE STRING,
CALL_OFF_VALUE TYPE STRING,
CALL_OFF_VAL_CURR TYPE STRING,
CALL_OFF_ORDER_ID TYPE STRING,
CALL_OFF_ITEM_NO TYPE STRING,
RELEASED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_SERVICECONTREV_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_CRMT_SERVICECONTREV_STR-HEADER_GUID sy-vline 
WA_CRMT_SERVICECONTREV_STR-OBJECT_ID sy-vline 
WA_CRMT_SERVICECONTREV_STR-MAIN_ITEM_GUID sy-vline 
WA_CRMT_SERVICECONTREV_STR-ITEM_GUID sy-vline 
WA_CRMT_SERVICECONTREV_STR-ITEM_NO sy-vline 
WA_CRMT_SERVICECONTREV_STR-CONTRACT_START_DATE sy-vline 
WA_CRMT_SERVICECONTREV_STR-CONTRACT_START_TZ sy-vline 
WA_CRMT_SERVICECONTREV_STR-CONTRACT_END_DATE sy-vline 
WA_CRMT_SERVICECONTREV_STR-CONTRACT_END_TZ sy-vline 
WA_CRMT_SERVICECONTREV_STR-TARGET_QUANTITY sy-vline 
WA_CRMT_SERVICECONTREV_STR-TARGET_QTY_UNIT sy-vline 
WA_CRMT_SERVICECONTREV_STR-TARGET_VALUE sy-vline 
WA_CRMT_SERVICECONTREV_STR-TARGET_VAL_CURR sy-vline 
WA_CRMT_SERVICECONTREV_STR-CALL_OFF_DATE sy-vline 
WA_CRMT_SERVICECONTREV_STR-CALL_OFF_TZ sy-vline 
WA_CRMT_SERVICECONTREV_STR-CALL_OFF_QUANTITY sy-vline 
WA_CRMT_SERVICECONTREV_STR-CALL_OFF_QTY_UNIT sy-vline 
WA_CRMT_SERVICECONTREV_STR-CALL_OFF_VALUE sy-vline 
WA_CRMT_SERVICECONTREV_STR-CALL_OFF_VAL_CURR sy-vline 
WA_CRMT_SERVICECONTREV_STR-CALL_OFF_ORDER_ID sy-vline 
WA_CRMT_SERVICECONTREV_STR-CALL_OFF_ITEM_NO sy-vline 
WA_CRMT_SERVICECONTREV_STR-RELEASED sy-vline      INTO ld_text SEPARATED BY SPACE.

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