ABAP Select data from SAP table PTCCLG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTCCLG
*  INTO TABLE @DATA(IT_PTCCLG2).
*--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_PTCCLG INDEX 1 INTO DATA(WA_PTCCLG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTCCLG>-MANDT = 1.
<PTCCLG>-PAYMENTCARDPAYMENTSETTLEMENT = 1.
<PTCCLG>-COMPANYCODE = 1.
<PTCCLG>-GLACCOUNT = 1.
<PTCCLG>-PAYMENTDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTCCLG-FISCALYEAR, sy-vline,
  WA_PTCCLG-CURRENCY, sy-vline,
  WA_PTCCLG-PAYTCARDTOBESETTLEDAMOUNT, sy-vline,
  WA_PTCCLG-PAYTCARDSETTLEMENTDOCISPOSTED, sy-vline,
  WA_PTCCLG-PAYTCARDSETTLEMENTISSUCCESSFUL, sy-vline,
  WA_PTCCLG-XFAIL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTCCLG 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_PTCCLG 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_PTCCLG INTO WA_PTCCLG.


*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 PAYMENTCARDPAYMENTSETTLEMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTCCLG-PAYMENTCARDPAYMENTSETTLEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTCCLG-PAYMENTCARDPAYMENTSETTLEMENT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PTCCLG-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTCCLG-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field PAYTCARDTOBESETTLEDAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_PTCCLG-PAYTCARDTOBESETTLEDAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTCCLG-PAYTCARDTOBESETTLEDAMOUNT.
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_PTCCLG_STR, 
MANDT TYPE STRING,
PAYMENTCARDPAYMENTSETTLEMENT TYPE STRING,
COMPANYCODE TYPE STRING,
GLACCOUNT TYPE STRING,
PAYMENTDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
CURRENCY TYPE STRING,
PAYTCARDTOBESETTLEDAMOUNT TYPE STRING,
PAYTCARDSETTLEMENTDOCISPOSTED TYPE STRING,
PAYTCARDSETTLEMENTISSUCCESSFUL TYPE STRING,
XFAIL TYPE STRING,
NSENT TYPE STRING,
FNAME TYPE STRING,
FDATU TYPE STRING,
FZEIT TYPE STRING,
LNAME TYPE STRING,
LDATU TYPE STRING,
LZEIT TYPE STRING,
NITEM TYPE STRING,
PDATU TYPE STRING,
PZEIT TYPE STRING,
HOSTB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTCCLG_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_PTCCLG_STR-MANDT sy-vline 
WA_PTCCLG_STR-PAYMENTCARDPAYMENTSETTLEMENT sy-vline 
WA_PTCCLG_STR-COMPANYCODE sy-vline 
WA_PTCCLG_STR-GLACCOUNT sy-vline 
WA_PTCCLG_STR-PAYMENTDOCUMENT sy-vline 
WA_PTCCLG_STR-FISCALYEAR sy-vline 
WA_PTCCLG_STR-CURRENCY sy-vline 
WA_PTCCLG_STR-PAYTCARDTOBESETTLEDAMOUNT sy-vline 
WA_PTCCLG_STR-PAYTCARDSETTLEMENTDOCISPOSTED sy-vline 
WA_PTCCLG_STR-PAYTCARDSETTLEMENTISSUCCESSFUL sy-vline 
WA_PTCCLG_STR-XFAIL sy-vline 
WA_PTCCLG_STR-NSENT sy-vline 
WA_PTCCLG_STR-FNAME sy-vline 
WA_PTCCLG_STR-FDATU sy-vline 
WA_PTCCLG_STR-FZEIT sy-vline 
WA_PTCCLG_STR-LNAME sy-vline 
WA_PTCCLG_STR-LDATU sy-vline 
WA_PTCCLG_STR-LZEIT sy-vline 
WA_PTCCLG_STR-NITEM sy-vline 
WA_PTCCLG_STR-PDATU sy-vline 
WA_PTCCLG_STR-PZEIT sy-vline 
WA_PTCCLG_STR-HOSTB sy-vline      INTO ld_text SEPARATED BY SPACE.

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