ABAP Select data from SAP table P15_LIBROUNICO_RT 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 P15_LIBROUNICO_RT 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 P15_LIBROUNICO_RT. 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 P15_LIBROUNICO_RT 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_P15_LIBROUNICO_RT TYPE STANDARD TABLE OF P15_LIBROUNICO_RT,
      WA_P15_LIBROUNICO_RT TYPE P15_LIBROUNICO_RT,
      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: <P15_LIBROUNICO_RT> TYPE P15_LIBROUNICO_RT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P15_LIBROUNICO_RT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P15_LIBROUNICO_RT
  INTO TABLE IT_P15_LIBROUNICO_RT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P15_LIBROUNICO_RT
*  INTO TABLE @DATA(IT_P15_LIBROUNICO_RT2).
*--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_P15_LIBROUNICO_RT INDEX 1 INTO DATA(WA_P15_LIBROUNICO_RT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P15_LIBROUNICO_RT ASSIGNING <P15_LIBROUNICO_RT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P15_LIBROUNICO_RT>-FAPER = 1.
<P15_LIBROUNICO_RT>-INPER = 1.
<P15_LIBROUNICO_RT>-RETRO = 1.
<P15_LIBROUNICO_RT>-FPBEG = 1.
<P15_LIBROUNICO_RT>-FPEND = 1.

ENDLOOP.

LOOP AT IT_P15_LIBROUNICO_RT INTO WA_P15_LIBROUNICO_RT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P15_LIBROUNICO_RT-RT, sy-vline,
  WA_P15_LIBROUNICO_RT-ABART, sy-vline,
  WA_P15_LIBROUNICO_RT-LGART, sy-vline,
  WA_P15_LIBROUNICO_RT-APZNR, sy-vline,
  WA_P15_LIBROUNICO_RT-CNTR1, sy-vline,
  WA_P15_LIBROUNICO_RT-CNTR2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P15_LIBROUNICO_RT 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_P15_LIBROUNICO_RT 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_P15_LIBROUNICO_RT INTO WA_P15_LIBROUNICO_RT.


*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_P15_LIBROUNICO_RT_STR, 
FAPER TYPE STRING,
INPER TYPE STRING,
RETRO TYPE STRING,
FPBEG TYPE STRING,
FPEND TYPE STRING,
RT TYPE STRING,
ABART TYPE STRING,
LGART TYPE STRING,
APZNR TYPE STRING,
CNTR1 TYPE STRING,
CNTR2 TYPE STRING,
CNTR3 TYPE STRING,
ALZNR TYPE STRING,
C1ZNR TYPE STRING,
BTZNR TYPE STRING,
ABZNR TYPE STRING,
V0TYP TYPE STRING,
V0ZNR TYPE STRING,
ZEINH TYPE STRING,
BETPE TYPE STRING,
ANZHL TYPE STRING,
BETRG TYPE STRING,
RTE_CURR TYPE STRING,
AMT_CURR TYPE STRING,
EVALCLASS02 TYPE STRING,
CONT1 TYPE STRING,
CONT2 TYPE STRING,
CTASS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P15_LIBROUNICO_RT_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_P15_LIBROUNICO_RT_STR-FAPER sy-vline 
WA_P15_LIBROUNICO_RT_STR-INPER sy-vline 
WA_P15_LIBROUNICO_RT_STR-RETRO sy-vline 
WA_P15_LIBROUNICO_RT_STR-FPBEG sy-vline 
WA_P15_LIBROUNICO_RT_STR-FPEND sy-vline 
WA_P15_LIBROUNICO_RT_STR-RT sy-vline 
WA_P15_LIBROUNICO_RT_STR-ABART sy-vline 
WA_P15_LIBROUNICO_RT_STR-LGART sy-vline 
WA_P15_LIBROUNICO_RT_STR-APZNR sy-vline 
WA_P15_LIBROUNICO_RT_STR-CNTR1 sy-vline 
WA_P15_LIBROUNICO_RT_STR-CNTR2 sy-vline 
WA_P15_LIBROUNICO_RT_STR-CNTR3 sy-vline 
WA_P15_LIBROUNICO_RT_STR-ALZNR sy-vline 
WA_P15_LIBROUNICO_RT_STR-C1ZNR sy-vline 
WA_P15_LIBROUNICO_RT_STR-BTZNR sy-vline 
WA_P15_LIBROUNICO_RT_STR-ABZNR sy-vline 
WA_P15_LIBROUNICO_RT_STR-V0TYP sy-vline 
WA_P15_LIBROUNICO_RT_STR-V0ZNR sy-vline 
WA_P15_LIBROUNICO_RT_STR-ZEINH sy-vline 
WA_P15_LIBROUNICO_RT_STR-BETPE sy-vline 
WA_P15_LIBROUNICO_RT_STR-ANZHL sy-vline 
WA_P15_LIBROUNICO_RT_STR-BETRG sy-vline 
WA_P15_LIBROUNICO_RT_STR-RTE_CURR sy-vline 
WA_P15_LIBROUNICO_RT_STR-AMT_CURR sy-vline 
WA_P15_LIBROUNICO_RT_STR-EVALCLASS02 sy-vline 
WA_P15_LIBROUNICO_RT_STR-CONT1 sy-vline 
WA_P15_LIBROUNICO_RT_STR-CONT2 sy-vline 
WA_P15_LIBROUNICO_RT_STR-CTASS sy-vline      INTO ld_text SEPARATED BY SPACE.

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