ABAP Select data from SAP table PTR_AP2002 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PTR_AP2002 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 PTR_AP2002. 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 PTR_AP2002 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_PTR_AP2002 TYPE STANDARD TABLE OF PTR_AP2002,
      WA_PTR_AP2002 TYPE PTR_AP2002,
      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: <PTR_AP2002> TYPE PTR_AP2002.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PTR_AP2002.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PTR_AP2002
  INTO TABLE IT_PTR_AP2002.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTR_AP2002
*  INTO TABLE @DATA(IT_PTR_AP20022).
*--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_PTR_AP2002 INDEX 1 INTO DATA(WA_PTR_AP20022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PTR_AP2002 ASSIGNING <PTR_AP2002>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTR_AP2002>-CONTRACT_ID = 1.
<PTR_AP2002>-P2002 = 1.
<PTR_AP2002>-PERNR = 1.
<PTR_AP2002>-INFTY = 1.
<PTR_AP2002>-SUBTY = 1.

ENDLOOP.

LOOP AT IT_PTR_AP2002 INTO WA_PTR_AP2002.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTR_AP2002-OBJPS, sy-vline,
  WA_PTR_AP2002-SPRPS, sy-vline,
  WA_PTR_AP2002-ENDDA, sy-vline,
  WA_PTR_AP2002-BEGDA, sy-vline,
  WA_PTR_AP2002-SEQNR, sy-vline,
  WA_PTR_AP2002-AEDTM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTR_AP2002 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_PTR_AP2002 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_PTR_AP2002 INTO WA_PTR_AP2002.


*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 ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTR_AP2002-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTR_AP2002-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTR_AP2002-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTR_AP2002-AWREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCSY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTR_AP2002-DOCSY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTR_AP2002-DOCSY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TDTYP, internal->external for field TDTYPE
CALL FUNCTION 'CONVERSION_EXIT_TDTYP_OUTPUT'
  EXPORTING
    input =                      WA_PTR_AP2002-TDTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTR_AP2002-TDTYPE.
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_PTR_AP2002_STR, 
CONTRACT_ID TYPE STRING,
P2002 TYPE STRING,
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,
BEGUZ TYPE STRING,
ENDUZ TYPE STRING,
VTKEN TYPE STRING,
AWART TYPE STRING,
ABWTG TYPE STRING,
ABRTG TYPE STRING,
ABRST TYPE STRING,
KALTG TYPE STRING,
STDAZ TYPE STRING,
LGART TYPE STRING,
BWGRL TYPE STRING,
AUFKZ TYPE STRING,
VERSL TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
PRAKN TYPE STRING,
PRAKZ TYPE STRING,
OTYPE TYPE STRING,
PLANS TYPE STRING,
GENER TYPE STRING,
EXBEL TYPE STRING,
HRSIF TYPE STRING,
ALLDF TYPE STRING,
WAERS TYPE STRING,
LOGSYS TYPE STRING,
AWTYP TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
DOCSY TYPE STRING,
DOCNR TYPE STRING,
WTART TYPE STRING,
FAPRS TYPE STRING,
TDLANGU TYPE STRING,
TDSUBLA TYPE STRING,
TDTYPE TYPE STRING,
KEPAU TYPE STRING,
EXPAU TYPE STRING,
PBEG1 TYPE STRING,
PEND1 TYPE STRING,
PBEZ1 TYPE STRING,
PUNB1 TYPE STRING,
PBEG2 TYPE STRING,
PEND2 TYPE STRING,
PBEZ2 TYPE STRING,
PUNB2 TYPE STRING,
NXDFL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTR_AP2002_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_PTR_AP2002_STR-CONTRACT_ID sy-vline 
WA_PTR_AP2002_STR-P2002 sy-vline 
WA_PTR_AP2002_STR-PERNR sy-vline 
WA_PTR_AP2002_STR-INFTY sy-vline 
WA_PTR_AP2002_STR-SUBTY sy-vline 
WA_PTR_AP2002_STR-OBJPS sy-vline 
WA_PTR_AP2002_STR-SPRPS sy-vline 
WA_PTR_AP2002_STR-ENDDA sy-vline 
WA_PTR_AP2002_STR-BEGDA sy-vline 
WA_PTR_AP2002_STR-SEQNR sy-vline 
WA_PTR_AP2002_STR-AEDTM sy-vline 
WA_PTR_AP2002_STR-UNAME sy-vline 
WA_PTR_AP2002_STR-HISTO sy-vline 
WA_PTR_AP2002_STR-ITXEX sy-vline 
WA_PTR_AP2002_STR-REFEX sy-vline 
WA_PTR_AP2002_STR-ORDEX sy-vline 
WA_PTR_AP2002_STR-ITBLD sy-vline 
WA_PTR_AP2002_STR-PREAS sy-vline 
WA_PTR_AP2002_STR-FLAG1 sy-vline 
WA_PTR_AP2002_STR-FLAG2 sy-vline 
WA_PTR_AP2002_STR-FLAG3 sy-vline 
WA_PTR_AP2002_STR-FLAG4 sy-vline 
WA_PTR_AP2002_STR-RESE1 sy-vline 
WA_PTR_AP2002_STR-RESE2 sy-vline 
WA_PTR_AP2002_STR-GRPVL sy-vline 
WA_PTR_AP2002_STR-BEGUZ sy-vline 
WA_PTR_AP2002_STR-ENDUZ sy-vline 
WA_PTR_AP2002_STR-VTKEN sy-vline 
WA_PTR_AP2002_STR-AWART sy-vline 
WA_PTR_AP2002_STR-ABWTG sy-vline 
WA_PTR_AP2002_STR-ABRTG sy-vline 
WA_PTR_AP2002_STR-ABRST sy-vline 
WA_PTR_AP2002_STR-KALTG sy-vline 
WA_PTR_AP2002_STR-STDAZ sy-vline 
WA_PTR_AP2002_STR-LGART sy-vline 
WA_PTR_AP2002_STR-BWGRL sy-vline 
WA_PTR_AP2002_STR-AUFKZ sy-vline 
WA_PTR_AP2002_STR-VERSL sy-vline 
WA_PTR_AP2002_STR-TRFGR sy-vline 
WA_PTR_AP2002_STR-TRFST sy-vline 
WA_PTR_AP2002_STR-PRAKN sy-vline 
WA_PTR_AP2002_STR-PRAKZ sy-vline 
WA_PTR_AP2002_STR-OTYPE sy-vline 
WA_PTR_AP2002_STR-PLANS sy-vline 
WA_PTR_AP2002_STR-GENER sy-vline 
WA_PTR_AP2002_STR-EXBEL sy-vline 
WA_PTR_AP2002_STR-HRSIF sy-vline 
WA_PTR_AP2002_STR-ALLDF sy-vline 
WA_PTR_AP2002_STR-WAERS sy-vline 
WA_PTR_AP2002_STR-LOGSYS sy-vline 
WA_PTR_AP2002_STR-AWTYP sy-vline 
WA_PTR_AP2002_STR-AWREF sy-vline 
WA_PTR_AP2002_STR-AWORG sy-vline 
WA_PTR_AP2002_STR-DOCSY sy-vline 
WA_PTR_AP2002_STR-DOCNR sy-vline 
WA_PTR_AP2002_STR-WTART sy-vline 
WA_PTR_AP2002_STR-FAPRS sy-vline 
WA_PTR_AP2002_STR-TDLANGU sy-vline 
WA_PTR_AP2002_STR-TDSUBLA sy-vline 
WA_PTR_AP2002_STR-TDTYPE sy-vline 
WA_PTR_AP2002_STR-KEPAU sy-vline 
WA_PTR_AP2002_STR-EXPAU sy-vline 
WA_PTR_AP2002_STR-PBEG1 sy-vline 
WA_PTR_AP2002_STR-PEND1 sy-vline 
WA_PTR_AP2002_STR-PBEZ1 sy-vline 
WA_PTR_AP2002_STR-PUNB1 sy-vline 
WA_PTR_AP2002_STR-PBEG2 sy-vline 
WA_PTR_AP2002_STR-PEND2 sy-vline 
WA_PTR_AP2002_STR-PBEZ2 sy-vline 
WA_PTR_AP2002_STR-PUNB2 sy-vline 
WA_PTR_AP2002_STR-NXDFL sy-vline      INTO ld_text SEPARATED BY SPACE.

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