ABAP Select data from SAP table CRMS_REVACC_MAINITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS_REVACC_MAINITEM
*  INTO TABLE @DATA(IT_CRMS_REVACC_MAINITEM2).
*--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_CRMS_REVACC_MAINITEM INDEX 1 INTO DATA(WA_CRMS_REVACC_MAINITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS_REVACC_MAINITEM>-SRCDOC_COMP = 1.
<CRMS_REVACC_MAINITEM>-SRCDOC_LOGSYS = 1.
<CRMS_REVACC_MAINITEM>-SRCDOC_TYPE = 1.
<CRMS_REVACC_MAINITEM>-SRCDOC_ID = 1.
<CRMS_REVACC_MAINITEM>-TIMESTAMP_UTC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS_REVACC_MAINITEM-HEADER_ID, sy-vline,
  WA_CRMS_REVACC_MAINITEM-ITEM_ID, sy-vline,
  WA_CRMS_REVACC_MAINITEM-REFERENCE_TYPE, sy-vline,
  WA_CRMS_REVACC_MAINITEM-REFERENCE_ID, sy-vline,
  WA_CRMS_REVACC_MAINITEM-KUNNR, sy-vline,
  WA_CRMS_REVACC_MAINITEM-PARTNER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS_REVACC_MAINITEM 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_CRMS_REVACC_MAINITEM 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_CRMS_REVACC_MAINITEM INTO WA_CRMS_REVACC_MAINITEM.


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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CRMS_REVACC_MAINITEM-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS_REVACC_MAINITEM-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PS_POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_CRMS_REVACC_MAINITEM-PS_POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS_REVACC_MAINITEM-PS_POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PRID1, internal->external for field CRM_PRODUCT_ID
CALL FUNCTION 'CONVERSION_EXIT_PRID1_OUTPUT'
  EXPORTING
    input =                      WA_CRMS_REVACC_MAINITEM-CRM_PRODUCT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMS_REVACC_MAINITEM-CRM_PRODUCT_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_CRMS_REVACC_MAINITEM_STR, 
SRCDOC_COMP TYPE STRING,
SRCDOC_LOGSYS TYPE STRING,
SRCDOC_TYPE TYPE STRING,
SRCDOC_ID TYPE STRING,
TIMESTAMP_UTC TYPE STRING,
HEADER_ID TYPE STRING,
ITEM_ID TYPE STRING,
REFERENCE_TYPE TYPE STRING,
REFERENCE_ID TYPE STRING,
KUNNR TYPE STRING,
PARTNER TYPE STRING,
BUKRS TYPE STRING,
WAERS TYPE STRING,
HWAER TYPE STRING,
QUANTITY TYPE STRING,
QUANTITY_UNIT TYPE STRING,
BILREL TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
SEGMENT TYPE STRING,
FKBER TYPE STRING,
START_DATE TYPE STRING,
END_DATE TYPE STRING,
PREDOC_COMP TYPE STRING,
PREDOC_LOGSYS TYPE STRING,
PREDOC_TYPE TYPE STRING,
PREDOC_ID TYPE STRING,
HILDOC_COMP TYPE STRING,
HILDOC_ID TYPE STRING,
HILDOC_LOGSYS TYPE STRING,
HILDOC_TYPE TYPE STRING,
DELREL TYPE STRING,
BILL_PLAN_TYPE TYPE STRING,
SALES_ORG TYPE STRING,
DELETION_IND TYPE STRING,
RECEIV_ACCOUNT TYPE STRING,
INCEPTION_DATE TYPE STRING,
VALUE_RELEVANT TYPE STRING,
BILLING_PLAN_INV TYPE STRING,
X_ESTIMATED_QUAN TYPE STRING,
MIG_PACKAGE TYPE STRING,
XRECACC_DET TYPE STRING,
XACCASS_DET TYPE STRING,
XNEGATIVE_ITEM TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
NPLNR TYPE STRING,
VORNR TYPE STRING,
PS_POSID TYPE STRING,
FINAL_DATE TYPE STRING,
CRM_CATEGORY_ID TYPE STRING,
CRM_ITEM_TYPE TYPE STRING,
CRM_OBJECT_TYPE TYPE STRING,
CRM_PROCESS_TYPE TYPE STRING,
CRM_PRODUCT_ID TYPE STRING,
CRM_SERVICE_ORG TYPE STRING,
KDGRP TYPE STRING,
SPART TYPE STRING,
VTWEG TYPE STRING,
ENTERPRISE_SERVICE_ORG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS_REVACC_MAINITEM_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_CRMS_REVACC_MAINITEM_STR-SRCDOC_COMP sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-SRCDOC_LOGSYS sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-SRCDOC_TYPE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-SRCDOC_ID sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-TIMESTAMP_UTC sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-HEADER_ID sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-ITEM_ID sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-REFERENCE_TYPE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-REFERENCE_ID sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-KUNNR sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-PARTNER sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-BUKRS sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-WAERS sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-HWAER sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-QUANTITY sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-QUANTITY_UNIT sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-BILREL sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-GSBER sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-PRCTR sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-SEGMENT sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-FKBER sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-START_DATE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-END_DATE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-PREDOC_COMP sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-PREDOC_LOGSYS sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-PREDOC_TYPE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-PREDOC_ID sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-HILDOC_COMP sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-HILDOC_ID sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-HILDOC_LOGSYS sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-HILDOC_TYPE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-DELREL sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-BILL_PLAN_TYPE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-SALES_ORG sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-DELETION_IND sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-RECEIV_ACCOUNT sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-INCEPTION_DATE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-VALUE_RELEVANT sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-BILLING_PLAN_INV sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-X_ESTIMATED_QUAN sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-MIG_PACKAGE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-XRECACC_DET sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-XACCASS_DET sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-XNEGATIVE_ITEM sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-KOSTL sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-AUFNR sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-NPLNR sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-VORNR sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-PS_POSID sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-FINAL_DATE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-CRM_CATEGORY_ID sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-CRM_ITEM_TYPE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-CRM_OBJECT_TYPE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-CRM_PROCESS_TYPE sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-CRM_PRODUCT_ID sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-CRM_SERVICE_ORG sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-KDGRP sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-SPART sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-VTWEG sy-vline 
WA_CRMS_REVACC_MAINITEM_STR-ENTERPRISE_SERVICE_ORG sy-vline      INTO ld_text SEPARATED BY SPACE.

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