ABAP Select data from SAP table P0186 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P0186 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 P0186. 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 P0186 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_P0186 TYPE STANDARD TABLE OF P0186,
      WA_P0186 TYPE P0186,
      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: <P0186> TYPE P0186.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P0186.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P0186
  INTO TABLE IT_P0186.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P0186
*  INTO TABLE @DATA(IT_P01862).
*--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_P0186 INDEX 1 INTO DATA(WA_P01862).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P0186 ASSIGNING <P0186>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P0186>-PERNR = 1.
<P0186>-INFTY = 1.
<P0186>-SUBTY = 1.
<P0186>-OBJPS = 1.
<P0186>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_P0186 INTO WA_P0186.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P0186-ENDDA, sy-vline,
  WA_P0186-BEGDA, sy-vline,
  WA_P0186-SEQNR, sy-vline,
  WA_P0186-AEDTM, sy-vline,
  WA_P0186-UNAME, sy-vline,
  WA_P0186-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P0186 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_P0186 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_P0186 INTO WA_P0186.


*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_P0186_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
SIGRP TYPE STRING,
SIOFC TYPE STRING,
CPFID TYPE STRING,
CPFAC TYPE STRING,
FUNCL TYPE STRING,
CPFNA TYPE STRING,
FWTYP TYPE STRING,
FWSGR TYPE STRING,
FWLPR TYPE STRING,
SGPRD TYPE STRING,
EEPER TYPE STRING,
EEEPC TYPE STRING,
EEAMT TYPE STRING,
EEEAM TYPE STRING,
EEWAE TYPE STRING,
EECUR TYPE STRING,
EYPER TYPE STRING,
EYEPC TYPE STRING,
EYAMT TYPE STRING,
EYEAM TYPE STRING,
EYWAE TYPE STRING,
EYCUR TYPE STRING,
AWADJ TYPE STRING,
POSOV TYPE STRING,
CPFVO TYPE STRING,
SCHEM TYPE STRING,
SCH84 TYPE STRING,
SAL84 TYPE STRING,
PSCPF TYPE STRING,
RTCPF TYPE STRING,
VCLMT TYPE STRING,
APIND TYPE STRING,
PPENS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P0186_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_P0186_STR-PERNR sy-vline 
WA_P0186_STR-INFTY sy-vline 
WA_P0186_STR-SUBTY sy-vline 
WA_P0186_STR-OBJPS sy-vline 
WA_P0186_STR-SPRPS sy-vline 
WA_P0186_STR-ENDDA sy-vline 
WA_P0186_STR-BEGDA sy-vline 
WA_P0186_STR-SEQNR sy-vline 
WA_P0186_STR-AEDTM sy-vline 
WA_P0186_STR-UNAME sy-vline 
WA_P0186_STR-HISTO sy-vline 
WA_P0186_STR-ITXEX sy-vline 
WA_P0186_STR-REFEX sy-vline 
WA_P0186_STR-ORDEX sy-vline 
WA_P0186_STR-ITBLD sy-vline 
WA_P0186_STR-PREAS sy-vline 
WA_P0186_STR-FLAG1 sy-vline 
WA_P0186_STR-FLAG2 sy-vline 
WA_P0186_STR-FLAG3 sy-vline 
WA_P0186_STR-FLAG4 sy-vline 
WA_P0186_STR-RESE1 sy-vline 
WA_P0186_STR-RESE2 sy-vline 
WA_P0186_STR-GRPVL sy-vline 
WA_P0186_STR-SIGRP sy-vline 
WA_P0186_STR-SIOFC sy-vline 
WA_P0186_STR-CPFID sy-vline 
WA_P0186_STR-CPFAC sy-vline 
WA_P0186_STR-FUNCL sy-vline 
WA_P0186_STR-CPFNA sy-vline 
WA_P0186_STR-FWTYP sy-vline 
WA_P0186_STR-FWSGR sy-vline 
WA_P0186_STR-FWLPR sy-vline 
WA_P0186_STR-SGPRD sy-vline 
WA_P0186_STR-EEPER sy-vline 
WA_P0186_STR-EEEPC sy-vline 
WA_P0186_STR-EEAMT sy-vline 
WA_P0186_STR-EEEAM sy-vline 
WA_P0186_STR-EEWAE sy-vline 
WA_P0186_STR-EECUR sy-vline 
WA_P0186_STR-EYPER sy-vline 
WA_P0186_STR-EYEPC sy-vline 
WA_P0186_STR-EYAMT sy-vline 
WA_P0186_STR-EYEAM sy-vline 
WA_P0186_STR-EYWAE sy-vline 
WA_P0186_STR-EYCUR sy-vline 
WA_P0186_STR-AWADJ sy-vline 
WA_P0186_STR-POSOV sy-vline 
WA_P0186_STR-CPFVO sy-vline 
WA_P0186_STR-SCHEM sy-vline 
WA_P0186_STR-SCH84 sy-vline 
WA_P0186_STR-SAL84 sy-vline 
WA_P0186_STR-PSCPF sy-vline 
WA_P0186_STR-RTCPF sy-vline 
WA_P0186_STR-VCLMT sy-vline 
WA_P0186_STR-APIND sy-vline 
WA_P0186_STR-PPENS sy-vline      INTO ld_text SEPARATED BY SPACE.

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