ABAP Select data from SAP table BAPIPACVAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPIPACVAL
*  INTO TABLE @DATA(IT_BAPIPACVAL2).
*--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_BAPIPACVAL INDEX 1 INTO DATA(WA_BAPIPACVAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPIPACVAL>-ALRELEVVAL = 1.
<BAPIPACVAL>-ALRELVALDT = 1.
<BAPIPACVAL>-ALRELVALTI = 1.
<BAPIPACVAL>-LASTALSTAT = 1.
<BAPIPACVAL>-LASTPERVAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPIPACVAL-AVG01PVAL, sy-vline,
  WA_BAPIPACVAL-AVG05PVAL, sy-vline,
  WA_BAPIPACVAL-AVG15PVAL, sy-vline,
  WA_BAPIPACVAL-AVG01SVAL, sy-vline,
  WA_BAPIPACVAL-AVG05SVAL, sy-vline,
  WA_BAPIPACVAL-AVG15SVAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPIPACVAL 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_BAPIPACVAL 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_BAPIPACVAL INTO WA_BAPIPACVAL.


*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_BAPIPACVAL_STR, 
ALRELEVVAL TYPE STRING,
ALRELVALDT TYPE STRING,
ALRELVALTI TYPE STRING,
LASTALSTAT TYPE STRING,
LASTPERVAL TYPE STRING,
AVG01PVAL TYPE STRING,
AVG05PVAL TYPE STRING,
AVG15PVAL TYPE STRING,
AVG01SVAL TYPE STRING,
AVG05SVAL TYPE STRING,
AVG15SVAL TYPE STRING,
AVG01CVAL TYPE STRING,
AVG05CVAL TYPE STRING,
AVG15CVAL TYPE STRING,
MAXPFVALUE TYPE STRING,
MAXPFDATE TYPE STRING,
MAXPFTIME TYPE STRING,
MINPFVALUE TYPE STRING,
MINPFDATE TYPE STRING,
MINPFTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPIPACVAL_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_BAPIPACVAL_STR-ALRELEVVAL sy-vline 
WA_BAPIPACVAL_STR-ALRELVALDT sy-vline 
WA_BAPIPACVAL_STR-ALRELVALTI sy-vline 
WA_BAPIPACVAL_STR-LASTALSTAT sy-vline 
WA_BAPIPACVAL_STR-LASTPERVAL sy-vline 
WA_BAPIPACVAL_STR-AVG01PVAL sy-vline 
WA_BAPIPACVAL_STR-AVG05PVAL sy-vline 
WA_BAPIPACVAL_STR-AVG15PVAL sy-vline 
WA_BAPIPACVAL_STR-AVG01SVAL sy-vline 
WA_BAPIPACVAL_STR-AVG05SVAL sy-vline 
WA_BAPIPACVAL_STR-AVG15SVAL sy-vline 
WA_BAPIPACVAL_STR-AVG01CVAL sy-vline 
WA_BAPIPACVAL_STR-AVG05CVAL sy-vline 
WA_BAPIPACVAL_STR-AVG15CVAL sy-vline 
WA_BAPIPACVAL_STR-MAXPFVALUE sy-vline 
WA_BAPIPACVAL_STR-MAXPFDATE sy-vline 
WA_BAPIPACVAL_STR-MAXPFTIME sy-vline 
WA_BAPIPACVAL_STR-MINPFVALUE sy-vline 
WA_BAPIPACVAL_STR-MINPFDATE sy-vline 
WA_BAPIPACVAL_STR-MINPFTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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