ABAP Select data from SAP table PC26I into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC26I 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 PC26I. 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 PC26I 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_PC26I TYPE STANDARD TABLE OF PC26I,
      WA_PC26I TYPE PC26I,
      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: <PC26I> TYPE PC26I.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC26I.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC26I
  INTO TABLE IT_PC26I.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC26I
*  INTO TABLE @DATA(IT_PC26I2).
*--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_PC26I INDEX 1 INTO DATA(WA_PC26I2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC26I ASSIGNING <PC26I>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC26I>-BEGDA = 1.
<PC26I>-ENDDA = 1.
<PC26I>-KENN1 = 1.
<PC26I>-TPEVE = 1.
<PC26I>-INDIN = 1.

ENDLOOP.

LOOP AT IT_PC26I INTO WA_PC26I.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC26I-INTAZ, sy-vline,
  WA_PC26I-GING1, sy-vline,
  WA_PC26I-GUSC1, sy-vline,
  WA_PC26I-GIND1, sy-vline,
  WA_PC26I-GNIN1, sy-vline,
  WA_PC26I-PEIN1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC26I 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_PC26I 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_PC26I INTO WA_PC26I.


*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_PC26I_STR, 
BEGDA TYPE STRING,
ENDDA TYPE STRING,
KENN1 TYPE STRING,
TPEVE TYPE STRING,
INDIN TYPE STRING,
INTAZ TYPE STRING,
GING1 TYPE STRING,
GUSC1 TYPE STRING,
GIND1 TYPE STRING,
GNIN1 TYPE STRING,
PEIN1 TYPE STRING,
GISR1 TYPE STRING,
INDR1 TYPE STRING,
GING2 TYPE STRING,
GUSC2 TYPE STRING,
GIND2 TYPE STRING,
GNIN2 TYPE STRING,
PEIN2 TYPE STRING,
GISR2 TYPE STRING,
INDR2 TYPE STRING,
GING3 TYPE STRING,
GUSC3 TYPE STRING,
GIND3 TYPE STRING,
GNIN3 TYPE STRING,
PEIN3 TYPE STRING,
GISR3 TYPE STRING,
INDR3 TYPE STRING,
GING4 TYPE STRING,
GUSC4 TYPE STRING,
GIND4 TYPE STRING,
GNIN4 TYPE STRING,
PEIN4 TYPE STRING,
GISR4 TYPE STRING,
INDR4 TYPE STRING,
GING5 TYPE STRING,
GUSC5 TYPE STRING,
GIND5 TYPE STRING,
GNIN5 TYPE STRING,
PEIN5 TYPE STRING,
GISR5 TYPE STRING,
INDR5 TYPE STRING,
ORAZ1 TYPE STRING,
PEAZ1 TYPE STRING,
OAZF1 TYPE STRING,
INAZ1 TYPE STRING,
GGUA1 TYPE STRING,
GGUP1 TYPE STRING,
ORAZ2 TYPE STRING,
PEAZ2 TYPE STRING,
OAZF2 TYPE STRING,
INAZ2 TYPE STRING,
GGUA2 TYPE STRING,
GGUP2 TYPE STRING,
ORAZ3 TYPE STRING,
PEAZ3 TYPE STRING,
OAZF3 TYPE STRING,
INAZ3 TYPE STRING,
GGUA3 TYPE STRING,
GGUP3 TYPE STRING,
ORAZ4 TYPE STRING,
PEAZ4 TYPE STRING,
OAZF4 TYPE STRING,
INAZ4 TYPE STRING,
GGUA4 TYPE STRING,
GGUP4 TYPE STRING,
ORAZ5 TYPE STRING,
PEAZ5 TYPE STRING,
OAZF5 TYPE STRING,
INAZ5 TYPE STRING,
GGUA5 TYPE STRING,
GGUP5 TYPE STRING,
GGTOT TYPE STRING,
PROLU TYPE STRING,
PAGOR TYPE STRING,
GGLAV TYPE STRING,
GGFES TYPE STRING,
GGFER TYPE STRING,
GGPRE TYPE STRING,
GGARE TYPE STRING,
SESGG TYPE STRING,
GGNRE TYPE STRING,
RATE1 TYPE STRING,
RATE2 TYPE STRING,
RATE3 TYPE STRING,
RATE4 TYPE STRING,
GGCRA TYPE STRING,
RELPR TYPE STRING,
RELPG TYPE STRING,
RATEG TYPE STRING,
QGGEX TYPE STRING,
REBAS TYPE STRING,
VARTR TYPE STRING,
VARCO TYPE STRING,
TRNAS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC26I_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_PC26I_STR-BEGDA sy-vline 
WA_PC26I_STR-ENDDA sy-vline 
WA_PC26I_STR-KENN1 sy-vline 
WA_PC26I_STR-TPEVE sy-vline 
WA_PC26I_STR-INDIN sy-vline 
WA_PC26I_STR-INTAZ sy-vline 
WA_PC26I_STR-GING1 sy-vline 
WA_PC26I_STR-GUSC1 sy-vline 
WA_PC26I_STR-GIND1 sy-vline 
WA_PC26I_STR-GNIN1 sy-vline 
WA_PC26I_STR-PEIN1 sy-vline 
WA_PC26I_STR-GISR1 sy-vline 
WA_PC26I_STR-INDR1 sy-vline 
WA_PC26I_STR-GING2 sy-vline 
WA_PC26I_STR-GUSC2 sy-vline 
WA_PC26I_STR-GIND2 sy-vline 
WA_PC26I_STR-GNIN2 sy-vline 
WA_PC26I_STR-PEIN2 sy-vline 
WA_PC26I_STR-GISR2 sy-vline 
WA_PC26I_STR-INDR2 sy-vline 
WA_PC26I_STR-GING3 sy-vline 
WA_PC26I_STR-GUSC3 sy-vline 
WA_PC26I_STR-GIND3 sy-vline 
WA_PC26I_STR-GNIN3 sy-vline 
WA_PC26I_STR-PEIN3 sy-vline 
WA_PC26I_STR-GISR3 sy-vline 
WA_PC26I_STR-INDR3 sy-vline 
WA_PC26I_STR-GING4 sy-vline 
WA_PC26I_STR-GUSC4 sy-vline 
WA_PC26I_STR-GIND4 sy-vline 
WA_PC26I_STR-GNIN4 sy-vline 
WA_PC26I_STR-PEIN4 sy-vline 
WA_PC26I_STR-GISR4 sy-vline 
WA_PC26I_STR-INDR4 sy-vline 
WA_PC26I_STR-GING5 sy-vline 
WA_PC26I_STR-GUSC5 sy-vline 
WA_PC26I_STR-GIND5 sy-vline 
WA_PC26I_STR-GNIN5 sy-vline 
WA_PC26I_STR-PEIN5 sy-vline 
WA_PC26I_STR-GISR5 sy-vline 
WA_PC26I_STR-INDR5 sy-vline 
WA_PC26I_STR-ORAZ1 sy-vline 
WA_PC26I_STR-PEAZ1 sy-vline 
WA_PC26I_STR-OAZF1 sy-vline 
WA_PC26I_STR-INAZ1 sy-vline 
WA_PC26I_STR-GGUA1 sy-vline 
WA_PC26I_STR-GGUP1 sy-vline 
WA_PC26I_STR-ORAZ2 sy-vline 
WA_PC26I_STR-PEAZ2 sy-vline 
WA_PC26I_STR-OAZF2 sy-vline 
WA_PC26I_STR-INAZ2 sy-vline 
WA_PC26I_STR-GGUA2 sy-vline 
WA_PC26I_STR-GGUP2 sy-vline 
WA_PC26I_STR-ORAZ3 sy-vline 
WA_PC26I_STR-PEAZ3 sy-vline 
WA_PC26I_STR-OAZF3 sy-vline 
WA_PC26I_STR-INAZ3 sy-vline 
WA_PC26I_STR-GGUA3 sy-vline 
WA_PC26I_STR-GGUP3 sy-vline 
WA_PC26I_STR-ORAZ4 sy-vline 
WA_PC26I_STR-PEAZ4 sy-vline 
WA_PC26I_STR-OAZF4 sy-vline 
WA_PC26I_STR-INAZ4 sy-vline 
WA_PC26I_STR-GGUA4 sy-vline 
WA_PC26I_STR-GGUP4 sy-vline 
WA_PC26I_STR-ORAZ5 sy-vline 
WA_PC26I_STR-PEAZ5 sy-vline 
WA_PC26I_STR-OAZF5 sy-vline 
WA_PC26I_STR-INAZ5 sy-vline 
WA_PC26I_STR-GGUA5 sy-vline 
WA_PC26I_STR-GGUP5 sy-vline 
WA_PC26I_STR-GGTOT sy-vline 
WA_PC26I_STR-PROLU sy-vline 
WA_PC26I_STR-PAGOR sy-vline 
WA_PC26I_STR-GGLAV sy-vline 
WA_PC26I_STR-GGFES sy-vline 
WA_PC26I_STR-GGFER sy-vline 
WA_PC26I_STR-GGPRE sy-vline 
WA_PC26I_STR-GGARE sy-vline 
WA_PC26I_STR-SESGG sy-vline 
WA_PC26I_STR-GGNRE sy-vline 
WA_PC26I_STR-RATE1 sy-vline 
WA_PC26I_STR-RATE2 sy-vline 
WA_PC26I_STR-RATE3 sy-vline 
WA_PC26I_STR-RATE4 sy-vline 
WA_PC26I_STR-GGCRA sy-vline 
WA_PC26I_STR-RELPR sy-vline 
WA_PC26I_STR-RELPG sy-vline 
WA_PC26I_STR-RATEG sy-vline 
WA_PC26I_STR-QGGEX sy-vline 
WA_PC26I_STR-REBAS sy-vline 
WA_PC26I_STR-VARTR sy-vline 
WA_PC26I_STR-VARCO sy-vline 
WA_PC26I_STR-TRNAS sy-vline      INTO ld_text SEPARATED BY SPACE.

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