ABAP Select data from SAP table CBOMDOWNSTRMDP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CBOMDOWNSTRMDP
*  INTO TABLE @DATA(IT_CBOMDOWNSTRMDP2).
*--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_CBOMDOWNSTRMDP INDEX 1 INTO DATA(WA_CBOMDOWNSTRMDP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CBOMDOWNSTRMDP>-MANDT = 1.
<CBOMDOWNSTRMDP>-MATERIAL = 1.
<CBOMDOWNSTRMDP>-PLANT = 1.
<CBOMDOWNSTRMDP>-MRPAREA = 1.
<CBOMDOWNSTRMDP>-BILLOFMATERIALCOMPONENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CBOMDOWNSTRMDP-BILLOFMATERIALVARIANTUSAGE, sy-vline,
  WA_CBOMDOWNSTRMDP-BILLOFMATERIALCATEGORY, sy-vline,
  WA_CBOMDOWNSTRMDP-MATERIALNAME, sy-vline,
  WA_CBOMDOWNSTRMDP-PLANTNAME, sy-vline,
  WA_CBOMDOWNSTRMDP-MRPAREATEXT, sy-vline,
  WA_CBOMDOWNSTRMDP-MRPTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CBOMDOWNSTRMDP 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_CBOMDOWNSTRMDP 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_CBOMDOWNSTRMDP INTO WA_CBOMDOWNSTRMDP.


*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 MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CBOMDOWNSTRMDP-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBOMDOWNSTRMDP-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field BILLOFMATERIALCOMPONENT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CBOMDOWNSTRMDP-BILLOFMATERIALCOMPONENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBOMDOWNSTRMDP-BILLOFMATERIALCOMPONENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MATERIALBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CBOMDOWNSTRMDP-MATERIALBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBOMDOWNSTRMDP-MATERIALBASEUNIT.
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_CBOMDOWNSTRMDP_STR, 
MANDT TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
BILLOFMATERIALCOMPONENT TYPE STRING,
BILLOFMATERIALVARIANTUSAGE TYPE STRING,
BILLOFMATERIALCATEGORY TYPE STRING,
MATERIALNAME TYPE STRING,
PLANTNAME TYPE STRING,
MRPAREATEXT TYPE STRING,
MRPTYPE TYPE STRING,
MRPTYPENAME TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
PRODUCTISBUFFERED TYPE STRING,
BUFFERSTATUSTEXT TYPE STRING,
BOMUSAGECODE TYPE STRING,
BOMUSAGEDESCRIPTION TYPE STRING,
CONSUMPTIONCODE TYPE STRING,
CONSUMPTIONDESCRIPTION TYPE STRING,
REPLENISHMENTLEADTIMECODE TYPE STRING,
REPLENISHMENTLEADTIMEDESC TYPE STRING,
VARIABILITYCODE TYPE STRING,
VARIABILITYDESCRIPTION TYPE STRING,
INDIVIDUALLEADTIME TYPE STRING,
BOMUSAGEVALUE TYPE STRING,
PRODUCTISCLASSIFIED TYPE STRING,
MRPPROCEDURE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CBOMDOWNSTRMDP_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_CBOMDOWNSTRMDP_STR-MANDT sy-vline 
WA_CBOMDOWNSTRMDP_STR-MATERIAL sy-vline 
WA_CBOMDOWNSTRMDP_STR-PLANT sy-vline 
WA_CBOMDOWNSTRMDP_STR-MRPAREA sy-vline 
WA_CBOMDOWNSTRMDP_STR-BILLOFMATERIALCOMPONENT sy-vline 
WA_CBOMDOWNSTRMDP_STR-BILLOFMATERIALVARIANTUSAGE sy-vline 
WA_CBOMDOWNSTRMDP_STR-BILLOFMATERIALCATEGORY sy-vline 
WA_CBOMDOWNSTRMDP_STR-MATERIALNAME sy-vline 
WA_CBOMDOWNSTRMDP_STR-PLANTNAME sy-vline 
WA_CBOMDOWNSTRMDP_STR-MRPAREATEXT sy-vline 
WA_CBOMDOWNSTRMDP_STR-MRPTYPE sy-vline 
WA_CBOMDOWNSTRMDP_STR-MRPTYPENAME sy-vline 
WA_CBOMDOWNSTRMDP_STR-MATERIALBASEUNIT sy-vline 
WA_CBOMDOWNSTRMDP_STR-PRODUCTISBUFFERED sy-vline 
WA_CBOMDOWNSTRMDP_STR-BUFFERSTATUSTEXT sy-vline 
WA_CBOMDOWNSTRMDP_STR-BOMUSAGECODE sy-vline 
WA_CBOMDOWNSTRMDP_STR-BOMUSAGEDESCRIPTION sy-vline 
WA_CBOMDOWNSTRMDP_STR-CONSUMPTIONCODE sy-vline 
WA_CBOMDOWNSTRMDP_STR-CONSUMPTIONDESCRIPTION sy-vline 
WA_CBOMDOWNSTRMDP_STR-REPLENISHMENTLEADTIMECODE sy-vline 
WA_CBOMDOWNSTRMDP_STR-REPLENISHMENTLEADTIMEDESC sy-vline 
WA_CBOMDOWNSTRMDP_STR-VARIABILITYCODE sy-vline 
WA_CBOMDOWNSTRMDP_STR-VARIABILITYDESCRIPTION sy-vline 
WA_CBOMDOWNSTRMDP_STR-INDIVIDUALLEADTIME sy-vline 
WA_CBOMDOWNSTRMDP_STR-BOMUSAGEVALUE sy-vline 
WA_CBOMDOWNSTRMDP_STR-PRODUCTISCLASSIFIED sy-vline 
WA_CBOMDOWNSTRMDP_STR-MRPPROCEDURE sy-vline      INTO ld_text SEPARATED BY SPACE.

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