ABAP Select data from SAP table PJP_RTI_EMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PJP_RTI_EMP
*  INTO TABLE @DATA(IT_PJP_RTI_EMP2).
*--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_PJP_RTI_EMP INDEX 1 INTO DATA(WA_PJP_RTI_EMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PJP_RTI_EMP>-PERNR = 1.
<PJP_RTI_EMP>-INFTY = 1.
<PJP_RTI_EMP>-BEGDA = 1.
<PJP_RTI_EMP>-ENDDA = 1.
<PJP_RTI_EMP>-TAXYR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PJP_RTI_EMP-TXAMF, sy-vline,
  WA_PJP_RTI_EMP-FPYPR, sy-vline,
  WA_PJP_RTI_EMP-TXAMR, sy-vline,
  WA_PJP_RTI_EMP-TASNO, sy-vline,
  WA_PJP_RTI_EMP-PASNO, sy-vline,
  WA_PJP_RTI_EMP-TASN2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PJP_RTI_EMP 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_PJP_RTI_EMP 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_PJP_RTI_EMP INTO WA_PJP_RTI_EMP.


*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 GJAHR, internal->external for field TAXYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PJP_RTI_EMP-TAXYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PJP_RTI_EMP-TAXYR.
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_PJP_RTI_EMP_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
TAXYR TYPE STRING,
TXAMF TYPE STRING,
FPYPR TYPE STRING,
TXAMR TYPE STRING,
TASNO TYPE STRING,
PASNO TYPE STRING,
TASN2 TYPE STRING,
REMRK TYPE STRING,
MSGTX TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PJP_RTI_EMP_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_PJP_RTI_EMP_STR-PERNR sy-vline 
WA_PJP_RTI_EMP_STR-INFTY sy-vline 
WA_PJP_RTI_EMP_STR-BEGDA sy-vline 
WA_PJP_RTI_EMP_STR-ENDDA sy-vline 
WA_PJP_RTI_EMP_STR-TAXYR sy-vline 
WA_PJP_RTI_EMP_STR-TXAMF sy-vline 
WA_PJP_RTI_EMP_STR-FPYPR sy-vline 
WA_PJP_RTI_EMP_STR-TXAMR sy-vline 
WA_PJP_RTI_EMP_STR-TASNO sy-vline 
WA_PJP_RTI_EMP_STR-PASNO sy-vline 
WA_PJP_RTI_EMP_STR-TASN2 sy-vline 
WA_PJP_RTI_EMP_STR-REMRK sy-vline 
WA_PJP_RTI_EMP_STR-MSGTX sy-vline 
WA_PJP_RTI_EMP_STR-MSGID sy-vline 
WA_PJP_RTI_EMP_STR-MSGNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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