ABAP Select data from SAP table FKK_CRM_PREPAID_ACCOUNT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_CRM_PREPAID_ACCOUNT
*  INTO TABLE @DATA(IT_FKK_CRM_PREPAID_ACCOUNT2).
*--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_FKK_CRM_PREPAID_ACCOUNT INDEX 1 INTO DATA(WA_FKK_CRM_PREPAID_ACCOUNT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_CRM_PREPAID_ACCOUNT>-PPACC = 1.
<FKK_CRM_PREPAID_ACCOUNT>-GPART = 1.
<FKK_CRM_PREPAID_ACCOUNT>-VKONT = 1.
<FKK_CRM_PREPAID_ACCOUNT>-BUKRS = 1.
<FKK_CRM_PREPAID_ACCOUNT>-WAERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_CRM_PREPAID_ACCOUNT-PCLDT, sy-vline,
  WA_FKK_CRM_PREPAID_ACCOUNT-CLODT, sy-vline,
  WA_FKK_CRM_PREPAID_ACCOUNT-MINAM, sy-vline,
  WA_FKK_CRM_PREPAID_ACCOUNT-LIM1A, sy-vline,
  WA_FKK_CRM_PREPAID_ACCOUNT-LIM1X, sy-vline,
  WA_FKK_CRM_PREPAID_ACCOUNT-LIM2A, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_CRM_PREPAID_ACCOUNT 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_FKK_CRM_PREPAID_ACCOUNT 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_FKK_CRM_PREPAID_ACCOUNT INTO WA_FKK_CRM_PREPAID_ACCOUNT.


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

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

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

*Conversion exit ALPHA, internal->external for field ABWRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_CRM_PREPAID_ACCOUNT-ABWRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_CRM_PREPAID_ACCOUNT-ABWRE.
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_FKK_CRM_PREPAID_ACCOUNT_STR, 
PPACC TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
BUKRS TYPE STRING,
WAERS TYPE STRING,
PCLDT TYPE STRING,
CLODT TYPE STRING,
MINAM TYPE STRING,
LIM1A TYPE STRING,
LIM1X TYPE STRING,
LIM2A TYPE STRING,
LIM2X TYPE STRING,
LIM3A TYPE STRING,
LIM3X TYPE STRING,
ABWRE TYPE STRING,
PPPTB TYPE STRING,
PY_DESCR TYPE STRING,
BNKID TYPE STRING,
CRDID TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
CCNAME TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
PPBAL TYPE STRING,
PPAST TYPE STRING,
PPASTTXT TYPE STRING,
VKBEZ TYPE STRING,
CONTRITEM_DESCR TYPE STRING,
TEL_NO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_CRM_PREPAID_ACCOUNT_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_FKK_CRM_PREPAID_ACCOUNT_STR-PPACC sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-GPART sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-VKONT sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-BUKRS sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-WAERS sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-PCLDT sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-CLODT sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-MINAM sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-LIM1A sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-LIM1X sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-LIM2A sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-LIM2X sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-LIM3A sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-LIM3X sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-ABWRE sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-PPPTB sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-PY_DESCR sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-BNKID sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-CRDID sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-CCINS sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-CCNUM sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-CCNAME sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-DATAB sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-DATBI sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-ERDAT sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-ERNAM sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-AEDAT sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-AENAM sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-PPBAL sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-PPAST sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-PPASTTXT sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-VKBEZ sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-CONTRITEM_DESCR sy-vline 
WA_FKK_CRM_PREPAID_ACCOUNT_STR-TEL_NO sy-vline      INTO ld_text SEPARATED BY SPACE.

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