ABAP Select data from SAP table P_FSTMTRECLASSIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P_FSTMTRECLASSIT
*  INTO TABLE @DATA(IT_P_FSTMTRECLASSIT2).
*--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_P_FSTMTRECLASSIT INDEX 1 INTO DATA(WA_P_FSTMTRECLASSIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P_FSTMTRECLASSIT>-RCLNT = 1.
<P_FSTMTRECLASSIT>-RLDNR = 1.
<P_FSTMTRECLASSIT>-RBUKRS = 1.
<P_FSTMTRECLASSIT>-RACCT = 1.
<P_FSTMTRECLASSIT>-SEGMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P_FSTMTRECLASSIT-PRCTR, sy-vline,
  WA_P_FSTMTRECLASSIT-GENERALLEDGERAGINGINCREMENT, sy-vline,
  WA_P_FSTMTRECLASSIT-HSL, sy-vline,
  WA_P_FSTMTRECLASSIT-KSL, sy-vline,
  WA_P_FSTMTRECLASSIT-OSL, sy-vline,
  WA_P_FSTMTRECLASSIT-VSL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P_FSTMTRECLASSIT 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_P_FSTMTRECLASSIT 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_P_FSTMTRECLASSIT INTO WA_P_FSTMTRECLASSIT.


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

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

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

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_P_FSTMTRECLASSIT-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P_FSTMTRECLASSIT-PRCTR.
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_P_FSTMTRECLASSIT_STR, 
RCLNT TYPE STRING,
RLDNR TYPE STRING,
RBUKRS TYPE STRING,
RACCT TYPE STRING,
SEGMENT TYPE STRING,
PRCTR TYPE STRING,
GENERALLEDGERAGINGINCREMENT TYPE STRING,
HSL TYPE STRING,
KSL TYPE STRING,
OSL TYPE STRING,
VSL TYPE STRING,
BSL TYPE STRING,
CSL TYPE STRING,
DSL TYPE STRING,
ESL TYPE STRING,
FSL TYPE STRING,
GSL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P_FSTMTRECLASSIT_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_P_FSTMTRECLASSIT_STR-RCLNT sy-vline 
WA_P_FSTMTRECLASSIT_STR-RLDNR sy-vline 
WA_P_FSTMTRECLASSIT_STR-RBUKRS sy-vline 
WA_P_FSTMTRECLASSIT_STR-RACCT sy-vline 
WA_P_FSTMTRECLASSIT_STR-SEGMENT sy-vline 
WA_P_FSTMTRECLASSIT_STR-PRCTR sy-vline 
WA_P_FSTMTRECLASSIT_STR-GENERALLEDGERAGINGINCREMENT sy-vline 
WA_P_FSTMTRECLASSIT_STR-HSL sy-vline 
WA_P_FSTMTRECLASSIT_STR-KSL sy-vline 
WA_P_FSTMTRECLASSIT_STR-OSL sy-vline 
WA_P_FSTMTRECLASSIT_STR-VSL sy-vline 
WA_P_FSTMTRECLASSIT_STR-BSL sy-vline 
WA_P_FSTMTRECLASSIT_STR-CSL sy-vline 
WA_P_FSTMTRECLASSIT_STR-DSL sy-vline 
WA_P_FSTMTRECLASSIT_STR-ESL sy-vline 
WA_P_FSTMTRECLASSIT_STR-FSL sy-vline 
WA_P_FSTMTRECLASSIT_STR-GSL sy-vline      INTO ld_text SEPARATED BY SPACE.

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