ABAP Select data from SAP table PERPACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PERPACT
*  INTO TABLE @DATA(IT_PERPACT2).
*--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_PERPACT INDEX 1 INTO DATA(WA_PERPACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PERPACT>-MANDT = 1.
<PERPACT>-MASTERPROJECTUUID = 1.
<PERPACT>-MASTERPROJECT = 1.
<PERPACT>-MASTERPROJECTISCONFIDENTIAL = 1.
<PERPACT>-MASTERPROJECTORGANIZATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PERPACT-MASTERPROJECTTYPE, sy-vline,
  WA_PERPACT-CONTROLLINGOBJECT, sy-vline,
  WA_PERPACT-CURRENCY, sy-vline,
  WA_PERPACT-CONTROLLINGAREACURRENCY, sy-vline,
  WA_PERPACT-COMPANYCODECURRENCY, sy-vline,
  WA_PERPACT-CONTROLLINGOBJECTCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PERPACT 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_PERPACT 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_PERPACT INTO WA_PERPACT.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PERPACT_STR, 
MANDT TYPE STRING,
MASTERPROJECTUUID TYPE STRING,
MASTERPROJECT TYPE STRING,
MASTERPROJECTISCONFIDENTIAL TYPE STRING,
MASTERPROJECTORGANIZATION TYPE STRING,
MASTERPROJECTTYPE TYPE STRING,
CONTROLLINGOBJECT TYPE STRING,
CURRENCY TYPE STRING,
CONTROLLINGAREACURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
CONTROLLINGOBJECTCURRENCY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CMTMTCOSTINGLOBALCURRENCY TYPE STRING,
ACTUALCOSTAMOUNT TYPE STRING,
ACTUALREVENUEAMOUNT TYPE STRING,
ACTUALCOSTINPROJCRCY TYPE STRING,
ACTUALREVENUEINPROJCRCY TYPE STRING,
ACTUALCOSTINTRANSCRCY TYPE STRING,
ACTUALREVENUEINTRANSCRCY TYPE STRING,
ACTUALCOSTINOBJECTCRCY TYPE STRING,
ACTUALREVENUEINOBJECTCRCY TYPE STRING,
STRTTODTEACTLCOSTINCOCRCY TYPE STRING,
STRTTODTEACTLREVNINCOCRCY TYPE STRING,
STRTTODTEACTLCOSTINPROJCRCY TYPE STRING,
STRTTODTEACTLREVNINPROJCRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PERPACT_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_PERPACT_STR-MANDT sy-vline 
WA_PERPACT_STR-MASTERPROJECTUUID sy-vline 
WA_PERPACT_STR-MASTERPROJECT sy-vline 
WA_PERPACT_STR-MASTERPROJECTISCONFIDENTIAL sy-vline 
WA_PERPACT_STR-MASTERPROJECTORGANIZATION sy-vline 
WA_PERPACT_STR-MASTERPROJECTTYPE sy-vline 
WA_PERPACT_STR-CONTROLLINGOBJECT sy-vline 
WA_PERPACT_STR-CURRENCY sy-vline 
WA_PERPACT_STR-CONTROLLINGAREACURRENCY sy-vline 
WA_PERPACT_STR-COMPANYCODECURRENCY sy-vline 
WA_PERPACT_STR-CONTROLLINGOBJECTCURRENCY sy-vline 
WA_PERPACT_STR-TRANSACTIONCURRENCY sy-vline 
WA_PERPACT_STR-CMTMTCOSTINGLOBALCURRENCY sy-vline 
WA_PERPACT_STR-ACTUALCOSTAMOUNT sy-vline 
WA_PERPACT_STR-ACTUALREVENUEAMOUNT sy-vline 
WA_PERPACT_STR-ACTUALCOSTINPROJCRCY sy-vline 
WA_PERPACT_STR-ACTUALREVENUEINPROJCRCY sy-vline 
WA_PERPACT_STR-ACTUALCOSTINTRANSCRCY sy-vline 
WA_PERPACT_STR-ACTUALREVENUEINTRANSCRCY sy-vline 
WA_PERPACT_STR-ACTUALCOSTINOBJECTCRCY sy-vline 
WA_PERPACT_STR-ACTUALREVENUEINOBJECTCRCY sy-vline 
WA_PERPACT_STR-STRTTODTEACTLCOSTINCOCRCY sy-vline 
WA_PERPACT_STR-STRTTODTEACTLREVNINCOCRCY sy-vline 
WA_PERPACT_STR-STRTTODTEACTLCOSTINPROJCRCY sy-vline 
WA_PERPACT_STR-STRTTODTEACTLREVNINPROJCRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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