ABAP Select data from SAP table PNO_ADT_PARAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PNO_ADT_PARAM
*  INTO TABLE @DATA(IT_PNO_ADT_PARAM2).
*--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_PNO_ADT_PARAM INDEX 1 INTO DATA(WA_PNO_ADT_PARAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PNO_ADT_PARAM>-MOABW = 1.
<PNO_ADT_PARAM>-AWART = 1.
<PNO_ADT_PARAM>-FROM_ACTTO = 1.
<PNO_ADT_PARAM>-ACTTO = 1.
<PNO_ADT_PARAM>-FROM_BEGDA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PNO_ADT_PARAM-TO_DATTO, sy-vline,
  WA_PNO_ADT_PARAM-DATTO, sy-vline,
  WA_PNO_ADT_PARAM-TO_ENDDA, sy-vline,
  WA_PNO_ADT_PARAM-HRS_PROPO, sy-vline,
  WA_PNO_ADT_PARAM-HRS_PRCCI, sy-vline,
  WA_PNO_ADT_PARAM-HRS_PRCVL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PNO_ADT_PARAM 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_PNO_ADT_PARAM 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_PNO_ADT_PARAM INTO WA_PNO_ADT_PARAM.


*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_PNO_ADT_PARAM_STR, 
MOABW TYPE STRING,
AWART TYPE STRING,
FROM_ACTTO TYPE STRING,
ACTTO TYPE STRING,
FROM_BEGDA TYPE STRING,
TO_DATTO TYPE STRING,
DATTO TYPE STRING,
TO_ENDDA TYPE STRING,
HRS_PROPO TYPE STRING,
HRS_PRCCI TYPE STRING,
HRS_PRCVL TYPE STRING,
HRS_FIXED TYPE STRING,
HRS_VALUE TYPE STRING,
HRS_PATRX TYPE STRING,
HRS_PATRN_ID TYPE STRING,
HRS_PATRN TYPE STRING,
HRS_SREST TYPE STRING,
HRS_PATRP TYPE STRING,
DIR_F TYPE STRING,
DIR_B TYPE STRING,
DIR_C TYPE STRING,
BREAK_F TYPE STRING,
BREAK_B TYPE STRING,
BREAK_N TYPE STRING,
BREAK_A TYPE STRING,
DEL_ACTTO TYPE STRING,
DEL_FRMMR TYPE STRING,
DIR TYPE STRING,
MR_BEGDA TYPE STRING,
MR_ENDDA TYPE STRING,
MOLGA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PNO_ADT_PARAM_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_PNO_ADT_PARAM_STR-MOABW sy-vline 
WA_PNO_ADT_PARAM_STR-AWART sy-vline 
WA_PNO_ADT_PARAM_STR-FROM_ACTTO sy-vline 
WA_PNO_ADT_PARAM_STR-ACTTO sy-vline 
WA_PNO_ADT_PARAM_STR-FROM_BEGDA sy-vline 
WA_PNO_ADT_PARAM_STR-TO_DATTO sy-vline 
WA_PNO_ADT_PARAM_STR-DATTO sy-vline 
WA_PNO_ADT_PARAM_STR-TO_ENDDA sy-vline 
WA_PNO_ADT_PARAM_STR-HRS_PROPO sy-vline 
WA_PNO_ADT_PARAM_STR-HRS_PRCCI sy-vline 
WA_PNO_ADT_PARAM_STR-HRS_PRCVL sy-vline 
WA_PNO_ADT_PARAM_STR-HRS_FIXED sy-vline 
WA_PNO_ADT_PARAM_STR-HRS_VALUE sy-vline 
WA_PNO_ADT_PARAM_STR-HRS_PATRX sy-vline 
WA_PNO_ADT_PARAM_STR-HRS_PATRN_ID sy-vline 
WA_PNO_ADT_PARAM_STR-HRS_PATRN sy-vline 
WA_PNO_ADT_PARAM_STR-HRS_SREST sy-vline 
WA_PNO_ADT_PARAM_STR-HRS_PATRP sy-vline 
WA_PNO_ADT_PARAM_STR-DIR_F sy-vline 
WA_PNO_ADT_PARAM_STR-DIR_B sy-vline 
WA_PNO_ADT_PARAM_STR-DIR_C sy-vline 
WA_PNO_ADT_PARAM_STR-BREAK_F sy-vline 
WA_PNO_ADT_PARAM_STR-BREAK_B sy-vline 
WA_PNO_ADT_PARAM_STR-BREAK_N sy-vline 
WA_PNO_ADT_PARAM_STR-BREAK_A sy-vline 
WA_PNO_ADT_PARAM_STR-DEL_ACTTO sy-vline 
WA_PNO_ADT_PARAM_STR-DEL_FRMMR sy-vline 
WA_PNO_ADT_PARAM_STR-DIR sy-vline 
WA_PNO_ADT_PARAM_STR-MR_BEGDA sy-vline 
WA_PNO_ADT_PARAM_STR-MR_ENDDA sy-vline 
WA_PNO_ADT_PARAM_STR-MOLGA sy-vline      INTO ld_text SEPARATED BY SPACE.

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