ABAP Select data from SAP table CRMT_ISU_CALC_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMT_ISU_CALC_ITEM 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_ISU_CALC_ITEM. 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_ISU_CALC_ITEM 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_ISU_CALC_ITEM TYPE STANDARD TABLE OF CRMT_ISU_CALC_ITEM,
      WA_CRMT_ISU_CALC_ITEM TYPE CRMT_ISU_CALC_ITEM,
      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_ISU_CALC_ITEM> TYPE CRMT_ISU_CALC_ITEM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_ISU_CALC_ITEM
*  INTO TABLE @DATA(IT_CRMT_ISU_CALC_ITEM2).
*--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_ISU_CALC_ITEM INDEX 1 INTO DATA(WA_CRMT_ISU_CALC_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_ISU_CALC_ITEM>-CLIENT = 1.
<CRMT_ISU_CALC_ITEM>-GUID = 1.
<CRMT_ISU_CALC_ITEM>-CREATED_AT = 1.
<CRMT_ISU_CALC_ITEM>-CREATED_BY = 1.
<CRMT_ISU_CALC_ITEM>-CHANGED_AT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_ISU_CALC_ITEM-CHANGED_BY, sy-vline,
  WA_CRMT_ISU_CALC_ITEM-OBJECT_TYPE, sy-vline,
  WA_CRMT_ISU_CALC_ITEM-DESCRIPTION_UC, sy-vline,
  WA_CRMT_ISU_CALC_ITEM-HEADER, sy-vline,
  WA_CRMT_ISU_CALC_ITEM-PARENT, sy-vline,
  WA_CRMT_ISU_CALC_ITEM-PRODUCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_ISU_CALC_ITEM 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_ISU_CALC_ITEM 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_ISU_CALC_ITEM INTO WA_CRMT_ISU_CALC_ITEM.


*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 TSTLC, internal->external for field CREATED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ISU_CALC_ITEM-CREATED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ISU_CALC_ITEM-CREATED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ISU_CALC_ITEM-CHANGED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ISU_CALC_ITEM-CHANGED_AT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field ITM_LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ISU_CALC_ITEM-ITM_LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ISU_CALC_ITEM-ITM_LANGUAGE.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TSTPS, internal->external for field A1CALC_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ISU_CALC_ITEM-A1CALC_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ISU_CALC_ITEM-A1CALC_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field A4BPNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ISU_CALC_ITEM-A4BPNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ISU_CALC_ITEM-A4BPNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HEADER_SOLD_TO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ISU_CALC_ITEM-HEADER_SOLD_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ISU_CALC_ITEM-HEADER_SOLD_TO.
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_ISU_CALC_ITEM_STR, 
CLIENT TYPE STRING,
GUID TYPE STRING,
CREATED_AT TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_AT TYPE STRING,
CHANGED_BY TYPE STRING,
OBJECT_TYPE TYPE STRING,
DESCRIPTION_UC TYPE STRING,
HEADER TYPE STRING,
PARENT TYPE STRING,
PRODUCT TYPE STRING,
PRODUCT_SRC_SYS TYPE STRING,
ORDERED_PROD TYPE STRING,
DESCRIPTION TYPE STRING,
ITM_LANGUAGE TYPE STRING,
NUMBER_INT TYPE STRING,
NUMBER_EXT TYPE STRING,
ITM_TYPE TYPE STRING,
ORDER_DATE TYPE STRING,
PRICE_VERSION TYPE STRING,
A1VERSION TYPE STRING,
A1STATUS TYPE STRING,
A1SIM_ID TYPE STRING,
A1CALC_ON TYPE STRING,
PRICES TYPE STRING,
ISUEXT TYPE STRING,
A4VALIDTO TYPE STRING,
A4VALIDFROM TYPE STRING,
A4RELPREV TYPE STRING,
A4RELNEXT TYPE STRING,
A4RELITEM TYPE STRING,
A4QUOTATION TYPE STRING,
A4PREVITEM TYPE STRING,
A4PODGUID TYPE STRING,
A4NEXTITEM TYPE STRING,
A4ISULOGSYS TYPE STRING,
A4ISUCONTR TYPE STRING,
A4DIVISION TYPE STRING,
A4CONTSTART TYPE STRING,
A4CONTEND TYPE STRING,
A4CONTDUR TYPE STRING,
A4CANCELLED TYPE STRING,
A4BUAGGUID TYPE STRING,
A4BPNO TYPE STRING,
A4BPGUID TYPE STRING,
A4BLOCKED TYPE STRING,
A4PRICES TYPE STRING,
A4TYPE TYPE STRING,
HEADER_SOLD_TO TYPE STRING,
BP_INHERIT TYPE STRING,
DATES TYPE STRING,
PARTNER TYPE STRING,
STATUS TYPE STRING,
CONFIG TYPE STRING,
CUST_ENH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_ISU_CALC_ITEM_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_ISU_CALC_ITEM_STR-CLIENT sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-GUID sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-CREATED_AT sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-CREATED_BY sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-CHANGED_AT sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-CHANGED_BY sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-OBJECT_TYPE sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-DESCRIPTION_UC sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-HEADER sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-PARENT sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-PRODUCT sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-PRODUCT_SRC_SYS sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-ORDERED_PROD sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-DESCRIPTION sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-ITM_LANGUAGE sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-NUMBER_INT sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-NUMBER_EXT sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-ITM_TYPE sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-ORDER_DATE sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-PRICE_VERSION sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A1VERSION sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A1STATUS sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A1SIM_ID sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A1CALC_ON sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-PRICES sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-ISUEXT sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4VALIDTO sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4VALIDFROM sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4RELPREV sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4RELNEXT sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4RELITEM sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4QUOTATION sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4PREVITEM sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4PODGUID sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4NEXTITEM sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4ISULOGSYS sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4ISUCONTR sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4DIVISION sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4CONTSTART sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4CONTEND sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4CONTDUR sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4CANCELLED sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4BUAGGUID sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4BPNO sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4BPGUID sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4BLOCKED sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4PRICES sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-A4TYPE sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-HEADER_SOLD_TO sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-BP_INHERIT sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-DATES sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-PARTNER sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-STATUS sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-CONFIG sy-vline 
WA_CRMT_ISU_CALC_ITEM_STR-CUST_ENH sy-vline      INTO ld_text SEPARATED BY SPACE.

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