ABAP Select data from SAP table PUA_AVN_COUNT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PUA_AVN_COUNT
*  INTO TABLE @DATA(IT_PUA_AVN_COUNT2).
*--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_PUA_AVN_COUNT INDEX 1 INTO DATA(WA_PUA_AVN_COUNT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PUA_AVN_COUNT>-PERIOD = 1.
<PUA_AVN_COUNT>-PERNR = 1.
<PUA_AVN_COUNT>-BUKRS = 1.
<PUA_AVN_COUNT>-WERKS = 1.
<PUA_AVN_COUNT>-BTRTL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PUA_AVN_COUNT-GSBER, sy-vline,
  WA_PUA_AVN_COUNT-ORGEH, sy-vline,
  WA_PUA_AVN_COUNT-PERSG, sy-vline,
  WA_PUA_AVN_COUNT-PERSK, sy-vline,
  WA_PUA_AVN_COUNT-PLANS, sy-vline,
  WA_PUA_AVN_COUNT-STELL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PUA_AVN_COUNT 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_PUA_AVN_COUNT 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_PUA_AVN_COUNT INTO WA_PUA_AVN_COUNT.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PUA_AVN_COUNT-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PUA_AVN_COUNT-KOSTL.
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_PUA_AVN_COUNT_STR, 
PERIOD TYPE STRING,
PERNR TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
GSBER TYPE STRING,
ORGEH TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
PLANS TYPE STRING,
STELL TYPE STRING,
NBTGK TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
STAT2 TYPE STRING,
AWART TYPE STRING,
MASSN TYPE STRING,
MASSG TYPE STRING,
REPTT TYPE STRING,
GESCH TYPE STRING,
KOSTL TYPE STRING,
P_361TT TYPE STRING,
P_361TA TYPE STRING,
EMPPE TYPE STRING,
PAYROLL TYPE STRING,
AVR_PAYROLL TYPE STRING,
CONTRACT TYPE STRING,
EXTERNAL TYPE STRING,
INTERNAL TYPE STRING,
MAIN_PRODUCT TYPE STRING,
NOGROUP TYPE STRING,
P_OKVED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PUA_AVN_COUNT_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_PUA_AVN_COUNT_STR-PERIOD sy-vline 
WA_PUA_AVN_COUNT_STR-PERNR sy-vline 
WA_PUA_AVN_COUNT_STR-BUKRS sy-vline 
WA_PUA_AVN_COUNT_STR-WERKS sy-vline 
WA_PUA_AVN_COUNT_STR-BTRTL sy-vline 
WA_PUA_AVN_COUNT_STR-GSBER sy-vline 
WA_PUA_AVN_COUNT_STR-ORGEH sy-vline 
WA_PUA_AVN_COUNT_STR-PERSG sy-vline 
WA_PUA_AVN_COUNT_STR-PERSK sy-vline 
WA_PUA_AVN_COUNT_STR-PLANS sy-vline 
WA_PUA_AVN_COUNT_STR-STELL sy-vline 
WA_PUA_AVN_COUNT_STR-NBTGK sy-vline 
WA_PUA_AVN_COUNT_STR-TRFAR sy-vline 
WA_PUA_AVN_COUNT_STR-TRFGB sy-vline 
WA_PUA_AVN_COUNT_STR-TRFGR sy-vline 
WA_PUA_AVN_COUNT_STR-TRFST sy-vline 
WA_PUA_AVN_COUNT_STR-STAT2 sy-vline 
WA_PUA_AVN_COUNT_STR-AWART sy-vline 
WA_PUA_AVN_COUNT_STR-MASSN sy-vline 
WA_PUA_AVN_COUNT_STR-MASSG sy-vline 
WA_PUA_AVN_COUNT_STR-REPTT sy-vline 
WA_PUA_AVN_COUNT_STR-GESCH sy-vline 
WA_PUA_AVN_COUNT_STR-KOSTL sy-vline 
WA_PUA_AVN_COUNT_STR-P_361TT sy-vline 
WA_PUA_AVN_COUNT_STR-P_361TA sy-vline 
WA_PUA_AVN_COUNT_STR-EMPPE sy-vline 
WA_PUA_AVN_COUNT_STR-PAYROLL sy-vline 
WA_PUA_AVN_COUNT_STR-AVR_PAYROLL sy-vline 
WA_PUA_AVN_COUNT_STR-CONTRACT sy-vline 
WA_PUA_AVN_COUNT_STR-EXTERNAL sy-vline 
WA_PUA_AVN_COUNT_STR-INTERNAL sy-vline 
WA_PUA_AVN_COUNT_STR-MAIN_PRODUCT sy-vline 
WA_PUA_AVN_COUNT_STR-NOGROUP sy-vline 
WA_PUA_AVN_COUNT_STR-P_OKVED sy-vline      INTO ld_text SEPARATED BY SPACE.

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