ABAP Select data from SAP table PILOA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PILOA
*  INTO TABLE @DATA(IT_PILOA2).
*--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_PILOA INDEX 1 INTO DATA(WA_PILOA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PILOA>-MANDT = 1.
<PILOA>-ILOAN = 1.
<PILOA>-TPLNR = 1.
<PILOA>-ABCKZ = 1.
<PILOA>-ABCKZI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PILOA-EQFNR, sy-vline,
  WA_PILOA-EQFNRI, sy-vline,
  WA_PILOA-SWERK, sy-vline,
  WA_PILOA-SWERKI, sy-vline,
  WA_PILOA-STORT, sy-vline,
  WA_PILOA-STORTI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PILOA 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_PILOA 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_PILOA INTO WA_PILOA.


*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 TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_PILOA-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PILOA-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PILOA-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PILOA-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PROID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PILOA-PROID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PILOA-PROID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PILOA-ANLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PILOA-ANLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLUN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PILOA-ANLUN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PILOA-ANLUN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DAUFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PILOA-DAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PILOA-DAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PILOA-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PILOA-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PILOA-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PILOA-ADRNR.
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_PILOA_STR, 
MANDT TYPE STRING,
ILOAN TYPE STRING,
TPLNR TYPE STRING,
ABCKZ TYPE STRING,
ABCKZI TYPE STRING,
EQFNR TYPE STRING,
EQFNRI TYPE STRING,
SWERK TYPE STRING,
SWERKI TYPE STRING,
STORT TYPE STRING,
STORTI TYPE STRING,
MSGRP TYPE STRING,
MSGRPI TYPE STRING,
BEBER TYPE STRING,
BEBERI TYPE STRING,
CR_OBJTY TYPE STRING,
PPSID TYPE STRING,
PPSIDI TYPE STRING,
GSBER TYPE STRING,
GSBERI TYPE STRING,
KOKRS TYPE STRING,
KOKRSI TYPE STRING,
KOSTL TYPE STRING,
KOSTLI TYPE STRING,
PROID TYPE STRING,
PROIDI TYPE STRING,
BUKRS TYPE STRING,
BUKRSI TYPE STRING,
ANLNR TYPE STRING,
ANLNRI TYPE STRING,
ANLUN TYPE STRING,
ANLUNI TYPE STRING,
DAUFN TYPE STRING,
DAUFNI TYPE STRING,
AUFNR TYPE STRING,
AUFNRI TYPE STRING,
TPLNRI TYPE STRING,
VKORG TYPE STRING,
VKORGI TYPE STRING,
VTWEG TYPE STRING,
VTWEGI TYPE STRING,
SPART TYPE STRING,
SPARTI TYPE STRING,
ADRNR TYPE STRING,
ADRNRI TYPE STRING,
OWNER TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PILOA_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_PILOA_STR-MANDT sy-vline 
WA_PILOA_STR-ILOAN sy-vline 
WA_PILOA_STR-TPLNR sy-vline 
WA_PILOA_STR-ABCKZ sy-vline 
WA_PILOA_STR-ABCKZI sy-vline 
WA_PILOA_STR-EQFNR sy-vline 
WA_PILOA_STR-EQFNRI sy-vline 
WA_PILOA_STR-SWERK sy-vline 
WA_PILOA_STR-SWERKI sy-vline 
WA_PILOA_STR-STORT sy-vline 
WA_PILOA_STR-STORTI sy-vline 
WA_PILOA_STR-MSGRP sy-vline 
WA_PILOA_STR-MSGRPI sy-vline 
WA_PILOA_STR-BEBER sy-vline 
WA_PILOA_STR-BEBERI sy-vline 
WA_PILOA_STR-CR_OBJTY sy-vline 
WA_PILOA_STR-PPSID sy-vline 
WA_PILOA_STR-PPSIDI sy-vline 
WA_PILOA_STR-GSBER sy-vline 
WA_PILOA_STR-GSBERI sy-vline 
WA_PILOA_STR-KOKRS sy-vline 
WA_PILOA_STR-KOKRSI sy-vline 
WA_PILOA_STR-KOSTL sy-vline 
WA_PILOA_STR-KOSTLI sy-vline 
WA_PILOA_STR-PROID sy-vline 
WA_PILOA_STR-PROIDI sy-vline 
WA_PILOA_STR-BUKRS sy-vline 
WA_PILOA_STR-BUKRSI sy-vline 
WA_PILOA_STR-ANLNR sy-vline 
WA_PILOA_STR-ANLNRI sy-vline 
WA_PILOA_STR-ANLUN sy-vline 
WA_PILOA_STR-ANLUNI sy-vline 
WA_PILOA_STR-DAUFN sy-vline 
WA_PILOA_STR-DAUFNI sy-vline 
WA_PILOA_STR-AUFNR sy-vline 
WA_PILOA_STR-AUFNRI sy-vline 
WA_PILOA_STR-TPLNRI sy-vline 
WA_PILOA_STR-VKORG sy-vline 
WA_PILOA_STR-VKORGI sy-vline 
WA_PILOA_STR-VTWEG sy-vline 
WA_PILOA_STR-VTWEGI sy-vline 
WA_PILOA_STR-SPART sy-vline 
WA_PILOA_STR-SPARTI sy-vline 
WA_PILOA_STR-ADRNR sy-vline 
WA_PILOA_STR-ADRNRI sy-vline 
WA_PILOA_STR-OWNER sy-vline 
WA_PILOA_STR-VKBUR sy-vline 
WA_PILOA_STR-VKGRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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