ABAP Select data from SAP table PTRM_EXP_FOR_APPROVAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTRM_EXP_FOR_APPROVAL
*  INTO TABLE @DATA(IT_PTRM_EXP_FOR_APPROVAL2).
*--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_PTRM_EXP_FOR_APPROVAL INDEX 1 INTO DATA(WA_PTRM_EXP_FOR_APPROVAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTRM_EXP_FOR_APPROVAL>-EMPLOYEENUMBER = 1.
<PTRM_EXP_FOR_APPROVAL>-TRIPNUMBER = 1.
<PTRM_EXP_FOR_APPROVAL>-STEXT = 1.
<PTRM_EXP_FOR_APPROVAL>-DATEDEP = 1.
<PTRM_EXP_FOR_APPROVAL>-TIMEDEP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTRM_EXP_FOR_APPROVAL-DATEARR, sy-vline,
  WA_PTRM_EXP_FOR_APPROVAL-TIMEARR, sy-vline,
  WA_PTRM_EXP_FOR_APPROVAL-DESTINATION, sy-vline,
  WA_PTRM_EXP_FOR_APPROVAL-REASON, sy-vline,
  WA_PTRM_EXP_FOR_APPROVAL-COUNTRY, sy-vline,
  WA_PTRM_EXP_FOR_APPROVAL-COUNTRY_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTRM_EXP_FOR_APPROVAL 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_PTRM_EXP_FOR_APPROVAL 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_PTRM_EXP_FOR_APPROVAL INTO WA_PTRM_EXP_FOR_APPROVAL.


*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 SXIDN, internal->external for field MAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_PTRM_EXP_FOR_APPROVAL-MAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTRM_EXP_FOR_APPROVAL-MAIL.
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_PTRM_EXP_FOR_APPROVAL_STR, 
EMPLOYEENUMBER TYPE STRING,
TRIPNUMBER TYPE STRING,
STEXT TYPE STRING,
DATEDEP TYPE STRING,
TIMEDEP TYPE STRING,
DATEARR TYPE STRING,
TIMEARR TYPE STRING,
DESTINATION TYPE STRING,
REASON TYPE STRING,
COUNTRY TYPE STRING,
COUNTRY_TEXT TYPE STRING,
AMOUNT_SUM_REIMB TYPE STRING,
AMOUNT_SUM_TOTAL TYPE STRING,
AMOUNT_SUM_DELTA TYPE STRING,
AMOUNT_SUM_ADVANCE TYPE STRING,
CURRENCY TYPE STRING,
NR_OPT_ARCHIVE TYPE STRING,
NR_ATTACHMENTS TYPE STRING,
HISTORY TYPE STRING,
NR_RECEIPTS TYPE STRING,
POLICY_VIOLATION TYPE STRING,
EXCEPTION_FLAG TYPE STRING,
SUBMISSION_STATUS TYPE STRING,
SUBMISSION_STATUS_TEXT TYPE STRING,
GWE TYPE STRING,
EDI TYPE STRING,
PD_MILEAGE TYPE STRING,
ENAME TYPE STRING,
POLICY_VIOLATION_TEXT TYPE STRING,
MAIL TYPE STRING,
ACTIONID TYPE STRING,
POWLTYPE TYPE STRING,
ASSIGNER TYPE STRING,
OPT_ARCHIVE TYPE STRING,
OPT_ARCHIVE_ENABLED TYPE STRING,
OPT_ARCHIVE_ICON TYPE STRING,
ATTACHMENTS TYPE STRING,
ATTACHMENTS_ENABLED TYPE STRING,
ATTACHMENTS_ICON TYPE STRING,
RECEIPTS TYPE STRING,
EXCEPTION_FLAG_TEXT TYPE STRING,
PRTXT TYPE STRING,
HISTORY_TOOLTIP TYPE STRING,
OPT_ARCHIVE_TOOLTIP TYPE STRING,
ATTACHMENTS_TOOLTIP TYPE STRING,
GWE_ENABLED TYPE STRING,
GWE_TEXT TYPE STRING,
EDI_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTRM_EXP_FOR_APPROVAL_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_PTRM_EXP_FOR_APPROVAL_STR-EMPLOYEENUMBER sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-TRIPNUMBER sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-STEXT sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-DATEDEP sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-TIMEDEP sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-DATEARR sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-TIMEARR sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-DESTINATION sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-REASON sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-COUNTRY sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-COUNTRY_TEXT sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-AMOUNT_SUM_REIMB sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-AMOUNT_SUM_TOTAL sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-AMOUNT_SUM_DELTA sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-AMOUNT_SUM_ADVANCE sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-CURRENCY sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-NR_OPT_ARCHIVE sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-NR_ATTACHMENTS sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-HISTORY sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-NR_RECEIPTS sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-POLICY_VIOLATION sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-EXCEPTION_FLAG sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-SUBMISSION_STATUS sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-SUBMISSION_STATUS_TEXT sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-GWE sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-EDI sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-PD_MILEAGE sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-ENAME sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-POLICY_VIOLATION_TEXT sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-MAIL sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-ACTIONID sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-POWLTYPE sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-ASSIGNER sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-OPT_ARCHIVE sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-OPT_ARCHIVE_ENABLED sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-OPT_ARCHIVE_ICON sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-ATTACHMENTS sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-ATTACHMENTS_ENABLED sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-ATTACHMENTS_ICON sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-RECEIPTS sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-EXCEPTION_FLAG_TEXT sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-PRTXT sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-HISTORY_TOOLTIP sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-OPT_ARCHIVE_TOOLTIP sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-ATTACHMENTS_TOOLTIP sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-GWE_ENABLED sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-GWE_TEXT sy-vline 
WA_PTRM_EXP_FOR_APPROVAL_STR-EDI_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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