ABAP Select data from SAP table PCO_LOA_PER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCO_LOA_PER
*  INTO TABLE @DATA(IT_PCO_LOA_PER2).
*--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_PCO_LOA_PER INDEX 1 INTO DATA(WA_PCO_LOA_PER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCO_LOA_PER>-PERNR = 1.
<PCO_LOA_PER>-NAME = 1.
<PCO_LOA_PER>-DLART = 1.
<PCO_LOA_PER>-OBJPS = 1.
<PCO_LOA_PER>-STEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCO_LOA_PER-FPPER, sy-vline,
  WA_PCO_LOA_PER-FPBEG, sy-vline,
  WA_PCO_LOA_PER-FPEND, sy-vline,
  WA_PCO_LOA_PER-ZSOLL, sy-vline,
  WA_PCO_LOA_PER-NRDYS, sy-vline,
  WA_PCO_LOA_PER-LOLOP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCO_LOA_PER 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_PCO_LOA_PER 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_PCO_LOA_PER INTO WA_PCO_LOA_PER.


*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_PCO_LOA_PER_STR, 
PERNR TYPE STRING,
NAME TYPE STRING,
DLART TYPE STRING,
OBJPS TYPE STRING,
STEXT TYPE STRING,
FPPER TYPE STRING,
FPBEG TYPE STRING,
FPEND TYPE STRING,
ZSOLL TYPE STRING,
NRDYS TYPE STRING,
LOLOP TYPE STRING,
LOLOE TYPE STRING,
LOLTE TYPE STRING,
INTMA TYPE STRING,
LOLID TYPE STRING,
LOLCI TYPE STRING,
LOLEP TYPE STRING,
LOLRP TYPE STRING,
LOLEE TYPE STRING,
LOLEX TYPE STRING,
LOLIM TYPE STRING,
TOTCU TYPE STRING,
LOLLB TYPE STRING,
LOLIC TYPE STRING,
TOTSA TYPE STRING,
LOLER TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
DKOND TYPE STRING,
ZREFR TYPE STRING,
PERMO TYPE STRING,
TILBT TYPE STRING,
ANRTE TYPE STRING,
TILCU TYPE STRING,
ANRCU TYPE STRING,
BUKRS TYPE STRING,
ABKRS TYPE STRING,
DARBT TYPE STRING,
EXTDL TYPE STRING,
DATBW TYPE STRING,
DBTCU TYPE STRING,
INDIN TYPE STRING,
TILBG TYPE STRING,
DLEND TYPE STRING,
EFFIN TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCO_LOA_PER_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_PCO_LOA_PER_STR-PERNR sy-vline 
WA_PCO_LOA_PER_STR-NAME sy-vline 
WA_PCO_LOA_PER_STR-DLART sy-vline 
WA_PCO_LOA_PER_STR-OBJPS sy-vline 
WA_PCO_LOA_PER_STR-STEXT sy-vline 
WA_PCO_LOA_PER_STR-FPPER sy-vline 
WA_PCO_LOA_PER_STR-FPBEG sy-vline 
WA_PCO_LOA_PER_STR-FPEND sy-vline 
WA_PCO_LOA_PER_STR-ZSOLL sy-vline 
WA_PCO_LOA_PER_STR-NRDYS sy-vline 
WA_PCO_LOA_PER_STR-LOLOP sy-vline 
WA_PCO_LOA_PER_STR-LOLOE sy-vline 
WA_PCO_LOA_PER_STR-LOLTE sy-vline 
WA_PCO_LOA_PER_STR-INTMA sy-vline 
WA_PCO_LOA_PER_STR-LOLID sy-vline 
WA_PCO_LOA_PER_STR-LOLCI sy-vline 
WA_PCO_LOA_PER_STR-LOLEP sy-vline 
WA_PCO_LOA_PER_STR-LOLRP sy-vline 
WA_PCO_LOA_PER_STR-LOLEE sy-vline 
WA_PCO_LOA_PER_STR-LOLEX sy-vline 
WA_PCO_LOA_PER_STR-LOLIM sy-vline 
WA_PCO_LOA_PER_STR-TOTCU sy-vline 
WA_PCO_LOA_PER_STR-LOLLB sy-vline 
WA_PCO_LOA_PER_STR-LOLIC sy-vline 
WA_PCO_LOA_PER_STR-TOTSA sy-vline 
WA_PCO_LOA_PER_STR-LOLER sy-vline 
WA_PCO_LOA_PER_STR-BEGDA sy-vline 
WA_PCO_LOA_PER_STR-ENDDA sy-vline 
WA_PCO_LOA_PER_STR-DKOND sy-vline 
WA_PCO_LOA_PER_STR-ZREFR sy-vline 
WA_PCO_LOA_PER_STR-PERMO sy-vline 
WA_PCO_LOA_PER_STR-TILBT sy-vline 
WA_PCO_LOA_PER_STR-ANRTE sy-vline 
WA_PCO_LOA_PER_STR-TILCU sy-vline 
WA_PCO_LOA_PER_STR-ANRCU sy-vline 
WA_PCO_LOA_PER_STR-BUKRS sy-vline 
WA_PCO_LOA_PER_STR-ABKRS sy-vline 
WA_PCO_LOA_PER_STR-DARBT sy-vline 
WA_PCO_LOA_PER_STR-EXTDL sy-vline 
WA_PCO_LOA_PER_STR-DATBW sy-vline 
WA_PCO_LOA_PER_STR-DBTCU sy-vline 
WA_PCO_LOA_PER_STR-INDIN sy-vline 
WA_PCO_LOA_PER_STR-TILBG sy-vline 
WA_PCO_LOA_PER_STR-DLEND sy-vline 
WA_PCO_LOA_PER_STR-EFFIN sy-vline 
WA_PCO_LOA_PER_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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