ABAP Select data from SAP table CCUSTDEMANDQV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCUSTDEMANDQV
*  INTO TABLE @DATA(IT_CCUSTDEMANDQV2).
*--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_CCUSTDEMANDQV INDEX 1 INTO DATA(WA_CCUSTDEMANDQV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCUSTDEMANDQV>-MANDT = 1.
<CCUSTDEMANDQV>-SALESORDER = 1.
<CCUSTDEMANDQV>-SALESORDERITEM = 1.
<CCUSTDEMANDQV>-SCHEDULELINE = 1.
<CCUSTDEMANDQV>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCUSTDEMANDQV-MRPPLANT, sy-vline,
  WA_CCUSTDEMANDQV-CUSTOMER, sy-vline,
  WA_CCUSTDEMANDQV-CUSTOMERFULLNAME, sy-vline,
  WA_CCUSTDEMANDQV-CONTACTPERSONNAME, sy-vline,
  WA_CCUSTDEMANDQV-CONTACTPERSONPHONENUMBER, sy-vline,
  WA_CCUSTDEMANDQV-CONTACTPERSONEMAILADDRESS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCUSTDEMANDQV 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_CCUSTDEMANDQV 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_CCUSTDEMANDQV INTO WA_CCUSTDEMANDQV.


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

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

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

*Conversion exit SXIDN, internal->external for field CONTACTPERSONEMAILADDRESS
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_CCUSTDEMANDQV-CONTACTPERSONEMAILADDRESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCUSTDEMANDQV-CONTACTPERSONEMAILADDRESS.
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_CCUSTDEMANDQV_STR, 
MANDT TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
SCHEDULELINE TYPE STRING,
MATERIAL TYPE STRING,
MRPPLANT TYPE STRING,
CUSTOMER TYPE STRING,
CUSTOMERFULLNAME TYPE STRING,
CONTACTPERSONNAME TYPE STRING,
CONTACTPERSONPHONENUMBER TYPE STRING,
CONTACTPERSONEMAILADDRESS TYPE STRING,
SALESORDERDATE TYPE STRING,
PRODUCTAVAILABILITYDATE TYPE STRING,
LOADINGDATE TYPE STRING,
REQUESTEDDELIVERYDATE TYPE STRING,
TOTALQUANTITY TYPE STRING,
ISSUEDQUANTITY TYPE STRING,
DELIVEREDQUANTITY TYPE STRING,
OPENQUANTITY TYPE STRING,
DELIVERYDATEQUANTITYISFIXED TYPE STRING,
CONFIRMEDQUANTITY TYPE STRING,
DELIVERYPRIORITY TYPE STRING,
DELIVERYPRIORITYDESC TYPE STRING,
PARTIALDELIVERYISALLOWEDTEXT TYPE STRING,
PARTIALDELIVERYISALLOWED TYPE STRING,
DELIVERYISBLOCKED TYPE STRING,
MATERIALBYCUSTOMER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCUSTDEMANDQV_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_CCUSTDEMANDQV_STR-MANDT sy-vline 
WA_CCUSTDEMANDQV_STR-SALESORDER sy-vline 
WA_CCUSTDEMANDQV_STR-SALESORDERITEM sy-vline 
WA_CCUSTDEMANDQV_STR-SCHEDULELINE sy-vline 
WA_CCUSTDEMANDQV_STR-MATERIAL sy-vline 
WA_CCUSTDEMANDQV_STR-MRPPLANT sy-vline 
WA_CCUSTDEMANDQV_STR-CUSTOMER sy-vline 
WA_CCUSTDEMANDQV_STR-CUSTOMERFULLNAME sy-vline 
WA_CCUSTDEMANDQV_STR-CONTACTPERSONNAME sy-vline 
WA_CCUSTDEMANDQV_STR-CONTACTPERSONPHONENUMBER sy-vline 
WA_CCUSTDEMANDQV_STR-CONTACTPERSONEMAILADDRESS sy-vline 
WA_CCUSTDEMANDQV_STR-SALESORDERDATE sy-vline 
WA_CCUSTDEMANDQV_STR-PRODUCTAVAILABILITYDATE sy-vline 
WA_CCUSTDEMANDQV_STR-LOADINGDATE sy-vline 
WA_CCUSTDEMANDQV_STR-REQUESTEDDELIVERYDATE sy-vline 
WA_CCUSTDEMANDQV_STR-TOTALQUANTITY sy-vline 
WA_CCUSTDEMANDQV_STR-ISSUEDQUANTITY sy-vline 
WA_CCUSTDEMANDQV_STR-DELIVEREDQUANTITY sy-vline 
WA_CCUSTDEMANDQV_STR-OPENQUANTITY sy-vline 
WA_CCUSTDEMANDQV_STR-DELIVERYDATEQUANTITYISFIXED sy-vline 
WA_CCUSTDEMANDQV_STR-CONFIRMEDQUANTITY sy-vline 
WA_CCUSTDEMANDQV_STR-DELIVERYPRIORITY sy-vline 
WA_CCUSTDEMANDQV_STR-DELIVERYPRIORITYDESC sy-vline 
WA_CCUSTDEMANDQV_STR-PARTIALDELIVERYISALLOWEDTEXT sy-vline 
WA_CCUSTDEMANDQV_STR-PARTIALDELIVERYISALLOWED sy-vline 
WA_CCUSTDEMANDQV_STR-DELIVERYISBLOCKED sy-vline 
WA_CCUSTDEMANDQV_STR-MATERIALBYCUSTOMER sy-vline      INTO ld_text SEPARATED BY SPACE.

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