ABAP Select data from SAP table P24_HSAPEST0_ALVC into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP P24_HSAPEST0_ALVC 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 P24_HSAPEST0_ALVC. 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 P24_HSAPEST0_ALVC 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_P24_HSAPEST0_ALVC TYPE STANDARD TABLE OF P24_HSAPEST0_ALVC,
      WA_P24_HSAPEST0_ALVC TYPE P24_HSAPEST0_ALVC,
      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: <P24_HSAPEST0_ALVC> TYPE P24_HSAPEST0_ALVC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P24_HSAPEST0_ALVC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P24_HSAPEST0_ALVC
  INTO TABLE IT_P24_HSAPEST0_ALVC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P24_HSAPEST0_ALVC
*  INTO TABLE @DATA(IT_P24_HSAPEST0_ALVC2).
*--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_P24_HSAPEST0_ALVC INDEX 1 INTO DATA(WA_P24_HSAPEST0_ALVC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P24_HSAPEST0_ALVC ASSIGNING <P24_HSAPEST0_ALVC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P24_HSAPEST0_ALVC>-PERNR = 1.
<P24_HSAPEST0_ALVC>-FNAME = 1.
<P24_HSAPEST0_ALVC>-BUKNO = 1.
<P24_HSAPEST0_ALVC>-BUKRS = 1.
<P24_HSAPEST0_ALVC>-BUTXT = 1.

ENDLOOP.

LOOP AT IT_P24_HSAPEST0_ALVC INTO WA_P24_HSAPEST0_ALVC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P24_HSAPEST0_ALVC-LABOO, sy-vline,
  WA_P24_HSAPEST0_ALVC-LABOT, sy-vline,
  WA_P24_HSAPEST0_ALVC-IQNBR, sy-vline,
  WA_P24_HSAPEST0_ALVC-CRNUM, sy-vline,
  WA_P24_HSAPEST0_ALVC-IQOCR, sy-vline,
  WA_P24_HSAPEST0_ALVC-PANBR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P24_HSAPEST0_ALVC 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_P24_HSAPEST0_ALVC 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_P24_HSAPEST0_ALVC INTO WA_P24_HSAPEST0_ALVC.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P24_HSAPEST0_ALVC_STR, 
PERNR TYPE STRING,
FNAME TYPE STRING,
BUKNO TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
LABOO TYPE STRING,
LABOT TYPE STRING,
IQNBR TYPE STRING,
CRNUM TYPE STRING,
IQOCR TYPE STRING,
PANBR TYPE STRING,
EENBR TYPE STRING,
NEWST TYPE STRING,
PROFN TYPE STRING,
SCDAT TYPE STRING,
OFFIC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P24_HSAPEST0_ALVC_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_P24_HSAPEST0_ALVC_STR-PERNR sy-vline 
WA_P24_HSAPEST0_ALVC_STR-FNAME sy-vline 
WA_P24_HSAPEST0_ALVC_STR-BUKNO sy-vline 
WA_P24_HSAPEST0_ALVC_STR-BUKRS sy-vline 
WA_P24_HSAPEST0_ALVC_STR-BUTXT sy-vline 
WA_P24_HSAPEST0_ALVC_STR-LABOO sy-vline 
WA_P24_HSAPEST0_ALVC_STR-LABOT sy-vline 
WA_P24_HSAPEST0_ALVC_STR-IQNBR sy-vline 
WA_P24_HSAPEST0_ALVC_STR-CRNUM sy-vline 
WA_P24_HSAPEST0_ALVC_STR-IQOCR sy-vline 
WA_P24_HSAPEST0_ALVC_STR-PANBR sy-vline 
WA_P24_HSAPEST0_ALVC_STR-EENBR sy-vline 
WA_P24_HSAPEST0_ALVC_STR-NEWST sy-vline 
WA_P24_HSAPEST0_ALVC_STR-PROFN sy-vline 
WA_P24_HSAPEST0_ALVC_STR-SCDAT sy-vline 
WA_P24_HSAPEST0_ALVC_STR-OFFIC sy-vline      INTO ld_text SEPARATED BY SPACE.

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