ABAP Select data from SAP table PPERALL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPERALL
*  INTO TABLE @DATA(IT_PPERALL2).
*--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_PPERALL INDEX 1 INTO DATA(WA_PPERALL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPERALL>-MANDT = 1.
<PPERALL>-COMP = 1.
<PPERALL>-LOGSYS = 1.
<PPERALL>-BUKRS = 1.
<PPERALL>-REF_KEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPERALL-REF_SUBKEY, sy-vline,
  WA_PPERALL-ITEMTYPE, sy-vline,
  WA_PPERALL-RLDNR, sy-vline,
  WA_PPERALL-PERIOD_END_DATE, sy-vline,
  WA_PPERALL-DATE_TO, sy-vline,
  WA_PPERALL-POSTEDPERIODAMTINTRANSCRCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPERALL 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_PPERALL 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_PPERALL INTO WA_PPERALL.


*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_PPERALL-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-LOGSYS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINTRANSCRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINTRANSCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINTRANSCRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINGLOBALCRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINGLOBALCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINGLOBALCRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINFDCRCY1
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINFDCRCY1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINFDCRCY1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINFDCRCY2
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINFDCRCY2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINFDCRCY2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINFDCRCY3
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINFDCRCY3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINFDCRCY3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINFDCRCY4
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINFDCRCY4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINFDCRCY4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINFDCRCY5
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINFDCRCY5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINFDCRCY5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINFDCRCY6
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINFDCRCY6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINFDCRCY6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINFDCRCY7
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINFDCRCY7
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINFDCRCY7.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field POSTEDPERIODAMTINFDCRCY8
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PPERALL-POSTEDPERIODAMTINFDCRCY8
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPERALL-POSTEDPERIODAMTINFDCRCY8.
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_PPERALL_STR, 
MANDT TYPE STRING,
COMP TYPE STRING,
LOGSYS TYPE STRING,
BUKRS TYPE STRING,
REF_KEY TYPE STRING,
REF_SUBKEY TYPE STRING,
ITEMTYPE TYPE STRING,
RLDNR TYPE STRING,
PERIOD_END_DATE TYPE STRING,
DATE_TO TYPE STRING,
POSTEDPERIODAMTINTRANSCRCY TYPE STRING,
POSTEDPERIODAMTINCOCODECRCY TYPE STRING,
POSTEDPERIODAMTINGLOBALCRCY TYPE STRING,
POSTEDPERIODAMTINFDCRCY1 TYPE STRING,
POSTEDPERIODAMTINFDCRCY2 TYPE STRING,
POSTEDPERIODAMTINFDCRCY3 TYPE STRING,
POSTEDPERIODAMTINFDCRCY4 TYPE STRING,
POSTEDPERIODAMTINFDCRCY5 TYPE STRING,
POSTEDPERIODAMTINFDCRCY6 TYPE STRING,
POSTEDPERIODAMTINFDCRCY7 TYPE STRING,
POSTEDPERIODAMTINFDCRCY8 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPERALL_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_PPERALL_STR-MANDT sy-vline 
WA_PPERALL_STR-COMP sy-vline 
WA_PPERALL_STR-LOGSYS sy-vline 
WA_PPERALL_STR-BUKRS sy-vline 
WA_PPERALL_STR-REF_KEY sy-vline 
WA_PPERALL_STR-REF_SUBKEY sy-vline 
WA_PPERALL_STR-ITEMTYPE sy-vline 
WA_PPERALL_STR-RLDNR sy-vline 
WA_PPERALL_STR-PERIOD_END_DATE sy-vline 
WA_PPERALL_STR-DATE_TO sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINTRANSCRCY sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINCOCODECRCY sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINGLOBALCRCY sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINFDCRCY1 sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINFDCRCY2 sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINFDCRCY3 sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINFDCRCY4 sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINFDCRCY5 sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINFDCRCY6 sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINFDCRCY7 sy-vline 
WA_PPERALL_STR-POSTEDPERIODAMTINFDCRCY8 sy-vline      INTO ld_text SEPARATED BY SPACE.

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