ABAP Select data from SAP table PENGCOCKPIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PENGCOCKPIT
*  INTO TABLE @DATA(IT_PENGCOCKPIT2).
*--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_PENGCOCKPIT INDEX 1 INTO DATA(WA_PENGCOCKPIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PENGCOCKPIT>-MANDT = 1.
<PENGCOCKPIT>-CHANGERECORDUUID = 1.
<PENGCOCKPIT>-CHANGERECORD = 1.
<PENGCOCKPIT>-CHANGERECORDTYPE = 1.
<PENGCOCKPIT>-PARENTCHANGERECORDUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PENGCOCKPIT-ROOTCHANGERECORDUUID, sy-vline,
  WA_PENGCOCKPIT-CHANGERECORDPRIORITY, sy-vline,
  WA_PENGCOCKPIT-CHANGERECORDSTATUS, sy-vline,
  WA_PENGCOCKPIT-CHANGENUMBER, sy-vline,
  WA_PENGCOCKPIT-CHANGERECORDCATEGORY, sy-vline,
  WA_PENGCOCKPIT-CHGRECORDAPPLICATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PENGCOCKPIT 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_PENGCOCKPIT 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_PENGCOCKPIT INTO WA_PENGCOCKPIT.


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

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

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

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

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PENGCOCKPIT-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PENGCOCKPIT-PARTNER.
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_PENGCOCKPIT_STR, 
MANDT TYPE STRING,
CHANGERECORDUUID TYPE STRING,
CHANGERECORD TYPE STRING,
CHANGERECORDTYPE TYPE STRING,
PARENTCHANGERECORDUUID TYPE STRING,
ROOTCHANGERECORDUUID TYPE STRING,
CHANGERECORDPRIORITY TYPE STRING,
CHANGERECORDSTATUS TYPE STRING,
CHANGENUMBER TYPE STRING,
CHANGERECORDCATEGORY TYPE STRING,
CHGRECORDAPPLICATION TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
CHANGERECORDLIFECYCLESTATUS TYPE STRING,
PARTNER TYPE STRING,
CHGRECORDDESCRIPTIONTEXT TYPE STRING,
CHGRECDEXPECTEDCOMPLETIONDATE TYPE STRING,
CHANGERECORDDETAILDESCRIPTION TYPE STRING,
CHGRECDHDREXTNUUID TYPE STRING,
CHGRECDENGEFFECTIVEDATE TYPE STRING,
LOGACCMSECUREID TYPE STRING,
LOGACCMSECUREIDOWNERID TYPE STRING,
SESSIONDATE TYPE STRING,
NUMBEROFDAYS TYPE STRING,
NUMBEROFMONTHS TYPE STRING,
NUMBEROFMONTHSINONEYEAR TYPE STRING,
NUMBEROFDAYSINFOURWEEKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PENGCOCKPIT_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_PENGCOCKPIT_STR-MANDT sy-vline 
WA_PENGCOCKPIT_STR-CHANGERECORDUUID sy-vline 
WA_PENGCOCKPIT_STR-CHANGERECORD sy-vline 
WA_PENGCOCKPIT_STR-CHANGERECORDTYPE sy-vline 
WA_PENGCOCKPIT_STR-PARENTCHANGERECORDUUID sy-vline 
WA_PENGCOCKPIT_STR-ROOTCHANGERECORDUUID sy-vline 
WA_PENGCOCKPIT_STR-CHANGERECORDPRIORITY sy-vline 
WA_PENGCOCKPIT_STR-CHANGERECORDSTATUS sy-vline 
WA_PENGCOCKPIT_STR-CHANGENUMBER sy-vline 
WA_PENGCOCKPIT_STR-CHANGERECORDCATEGORY sy-vline 
WA_PENGCOCKPIT_STR-CHGRECORDAPPLICATION sy-vline 
WA_PENGCOCKPIT_STR-CREATEDBYUSER sy-vline 
WA_PENGCOCKPIT_STR-CREATIONDATETIME sy-vline 
WA_PENGCOCKPIT_STR-LASTCHANGEDBYUSER sy-vline 
WA_PENGCOCKPIT_STR-LASTCHANGEDATETIME sy-vline 
WA_PENGCOCKPIT_STR-CHANGERECORDLIFECYCLESTATUS sy-vline 
WA_PENGCOCKPIT_STR-PARTNER sy-vline 
WA_PENGCOCKPIT_STR-CHGRECORDDESCRIPTIONTEXT sy-vline 
WA_PENGCOCKPIT_STR-CHGRECDEXPECTEDCOMPLETIONDATE sy-vline 
WA_PENGCOCKPIT_STR-CHANGERECORDDETAILDESCRIPTION sy-vline 
WA_PENGCOCKPIT_STR-CHGRECDHDREXTNUUID sy-vline 
WA_PENGCOCKPIT_STR-CHGRECDENGEFFECTIVEDATE sy-vline 
WA_PENGCOCKPIT_STR-LOGACCMSECUREID sy-vline 
WA_PENGCOCKPIT_STR-LOGACCMSECUREIDOWNERID sy-vline 
WA_PENGCOCKPIT_STR-SESSIONDATE sy-vline 
WA_PENGCOCKPIT_STR-NUMBEROFDAYS sy-vline 
WA_PENGCOCKPIT_STR-NUMBEROFMONTHS sy-vline 
WA_PENGCOCKPIT_STR-NUMBEROFMONTHSINONEYEAR sy-vline 
WA_PENGCOCKPIT_STR-NUMBEROFDAYSINFOURWEEKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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