ABAP Select data from SAP table PC266 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PC266 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 PC266. 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 PC266 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_PC266 TYPE STANDARD TABLE OF PC266,
      WA_PC266 TYPE PC266,
      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: <PC266> TYPE PC266.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PC266.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PC266
  INTO TABLE IT_PC266.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PC266
*  INTO TABLE @DATA(IT_PC2662).
*--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_PC266 INDEX 1 INTO DATA(WA_PC2662).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PC266 ASSIGNING <PC266>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PC266>-MOCSI = 1.
<PC266>-SITID = 1.
<PC266>-PERNR = 1.
<PC266>-GENDR = 1.
<PC266>-GBDAT = 1.

ENDLOOP.

LOOP AT IT_PC266 INTO WA_PC266.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PC266-WERKS, sy-vline,
  WA_PC266-BTRTL, sy-vline,
  WA_PC266-PERSG, sy-vline,
  WA_PC266-PERSK, sy-vline,
  WA_PC266-SCIMF, sy-vline,
  WA_PC266-SIINR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PC266 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_PC266 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_PC266 INTO WA_PC266.


*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 PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PC266-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PC266-GBDAT.
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_PC266_STR, 
MOCSI TYPE STRING,
SITID TYPE STRING,
PERNR TYPE STRING,
GENDR TYPE STRING,
GBDAT TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
SCIMF TYPE STRING,
SIINR TYPE STRING,
SIPNR TYPE STRING,
SIIID TYPE STRING,
EALID TYPE STRING,
ALDAT TYPE STRING,
PREGR TYPE STRING,
PRESC TYPE STRING,
AVGCB TYPE STRING,
SGRUL TYPE STRING,
FCPRE TYPE STRING,
EX1ST TYPE STRING,
PB1ST TYPE STRING,
FC1ST TYPE STRING,
WC1ST TYPE STRING,
CM1ST TYPE STRING,
CK1ST TYPE STRING,
CA1ST TYPE STRING,
XM1ST TYPE STRING,
XK1ST TYPE STRING,
XA1ST TYPE STRING,
EX2ND TYPE STRING,
PB2ND TYPE STRING,
FC2ND TYPE STRING,
WC2ND TYPE STRING,
CM2ND TYPE STRING,
CK2ND TYPE STRING,
CA2ND TYPE STRING,
XM2ND TYPE STRING,
XK2ND TYPE STRING,
XA2ND TYPE STRING,
EX3RD TYPE STRING,
PB3RD TYPE STRING,
FC3RD TYPE STRING,
WC3RD TYPE STRING,
CM3RD TYPE STRING,
CK3RD TYPE STRING,
CA3RD TYPE STRING,
XM3RD TYPE STRING,
XK3RD TYPE STRING,
XA3RD TYPE STRING,
MOFCC TYPE STRING,
DFPID TYPE STRING,
RCALP TYPE STRING,
AMTCA TYPE STRING,
AVGCA TYPE STRING,
AVGXM TYPE STRING,
AVGXK TYPE STRING,
AVGXA TYPE STRING,
FIXGR TYPE STRING,
FIXSC TYPE STRING,
GEPFL TYPE STRING,
CANFL TYPE STRING,
SNTFL TYPE STRING,
LSTFL TYPE STRING,
SASTA TYPE STRING,
CDATE TYPE STRING,
CTIME TYPE STRING,
CUSER TYPE STRING,
BKTID TYPE STRING,
ENAME TYPE STRING,
KNAME TYPE STRING,
PRNFL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PC266_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_PC266_STR-MOCSI sy-vline 
WA_PC266_STR-SITID sy-vline 
WA_PC266_STR-PERNR sy-vline 
WA_PC266_STR-GENDR sy-vline 
WA_PC266_STR-GBDAT sy-vline 
WA_PC266_STR-WERKS sy-vline 
WA_PC266_STR-BTRTL sy-vline 
WA_PC266_STR-PERSG sy-vline 
WA_PC266_STR-PERSK sy-vline 
WA_PC266_STR-SCIMF sy-vline 
WA_PC266_STR-SIINR sy-vline 
WA_PC266_STR-SIPNR sy-vline 
WA_PC266_STR-SIIID sy-vline 
WA_PC266_STR-EALID sy-vline 
WA_PC266_STR-ALDAT sy-vline 
WA_PC266_STR-PREGR sy-vline 
WA_PC266_STR-PRESC sy-vline 
WA_PC266_STR-AVGCB sy-vline 
WA_PC266_STR-SGRUL sy-vline 
WA_PC266_STR-FCPRE sy-vline 
WA_PC266_STR-EX1ST sy-vline 
WA_PC266_STR-PB1ST sy-vline 
WA_PC266_STR-FC1ST sy-vline 
WA_PC266_STR-WC1ST sy-vline 
WA_PC266_STR-CM1ST sy-vline 
WA_PC266_STR-CK1ST sy-vline 
WA_PC266_STR-CA1ST sy-vline 
WA_PC266_STR-XM1ST sy-vline 
WA_PC266_STR-XK1ST sy-vline 
WA_PC266_STR-XA1ST sy-vline 
WA_PC266_STR-EX2ND sy-vline 
WA_PC266_STR-PB2ND sy-vline 
WA_PC266_STR-FC2ND sy-vline 
WA_PC266_STR-WC2ND sy-vline 
WA_PC266_STR-CM2ND sy-vline 
WA_PC266_STR-CK2ND sy-vline 
WA_PC266_STR-CA2ND sy-vline 
WA_PC266_STR-XM2ND sy-vline 
WA_PC266_STR-XK2ND sy-vline 
WA_PC266_STR-XA2ND sy-vline 
WA_PC266_STR-EX3RD sy-vline 
WA_PC266_STR-PB3RD sy-vline 
WA_PC266_STR-FC3RD sy-vline 
WA_PC266_STR-WC3RD sy-vline 
WA_PC266_STR-CM3RD sy-vline 
WA_PC266_STR-CK3RD sy-vline 
WA_PC266_STR-CA3RD sy-vline 
WA_PC266_STR-XM3RD sy-vline 
WA_PC266_STR-XK3RD sy-vline 
WA_PC266_STR-XA3RD sy-vline 
WA_PC266_STR-MOFCC sy-vline 
WA_PC266_STR-DFPID sy-vline 
WA_PC266_STR-RCALP sy-vline 
WA_PC266_STR-AMTCA sy-vline 
WA_PC266_STR-AVGCA sy-vline 
WA_PC266_STR-AVGXM sy-vline 
WA_PC266_STR-AVGXK sy-vline 
WA_PC266_STR-AVGXA sy-vline 
WA_PC266_STR-FIXGR sy-vline 
WA_PC266_STR-FIXSC sy-vline 
WA_PC266_STR-GEPFL sy-vline 
WA_PC266_STR-CANFL sy-vline 
WA_PC266_STR-SNTFL sy-vline 
WA_PC266_STR-LSTFL sy-vline 
WA_PC266_STR-SASTA sy-vline 
WA_PC266_STR-CDATE sy-vline 
WA_PC266_STR-CTIME sy-vline 
WA_PC266_STR-CUSER sy-vline 
WA_PC266_STR-BKTID sy-vline 
WA_PC266_STR-ENAME sy-vline 
WA_PC266_STR-KNAME sy-vline 
WA_PC266_STR-PRNFL sy-vline      INTO ld_text SEPARATED BY SPACE.

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