ABAP Select data from SAP table CCPOS_ALERT_STORAGE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCPOS_ALERT_STORAGE
*  INTO TABLE @DATA(IT_CCPOS_ALERT_STORAGE2).
*--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_CCPOS_ALERT_STORAGE INDEX 1 INTO DATA(WA_CCPOS_ALERT_STORAGE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCPOS_ALERT_STORAGE>-UNAME = 1.
<CCPOS_ALERT_STORAGE>-RULE_ID = 1.
<CCPOS_ALERT_STORAGE>-RULE_INVALID = 1.
<CCPOS_ALERT_STORAGE>-VALUE1 = 1.
<CCPOS_ALERT_STORAGE>-WAERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCPOS_ALERT_STORAGE-KOKRS, sy-vline,
  WA_CCPOS_ALERT_STORAGE-BELNR, sy-vline,
  WA_CCPOS_ALERT_STORAGE-BUZEI, sy-vline,
  WA_CCPOS_ALERT_STORAGE-BUDAT, sy-vline,
  WA_CCPOS_ALERT_STORAGE-BUTXT, sy-vline,
  WA_CCPOS_ALERT_STORAGE-USNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCPOS_ALERT_STORAGE 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_CCPOS_ALERT_STORAGE 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_CCPOS_ALERT_STORAGE INTO WA_CCPOS_ALERT_STORAGE.


*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 AC152, internal->external for field VALUE1
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CCPOS_ALERT_STORAGE-VALUE1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCPOS_ALERT_STORAGE-VALUE1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCPOS_ALERT_STORAGE-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCPOS_ALERT_STORAGE-BELNR.
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_CCPOS_ALERT_STORAGE_STR, 
UNAME TYPE STRING,
RULE_ID TYPE STRING,
RULE_INVALID TYPE STRING,
VALUE1 TYPE STRING,
WAERS TYPE STRING,
KOKRS TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
BUDAT TYPE STRING,
BUTXT TYPE STRING,
USNAM TYPE STRING,
TIMESTMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCPOS_ALERT_STORAGE_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_CCPOS_ALERT_STORAGE_STR-UNAME sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-RULE_ID sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-RULE_INVALID sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-VALUE1 sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-WAERS sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-KOKRS sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-BELNR sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-BUZEI sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-BUDAT sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-BUTXT sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-USNAM sy-vline 
WA_CCPOS_ALERT_STORAGE_STR-TIMESTMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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