ABAP Select data from SAP table PMPACTIVITY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMPACTIVITY
*  INTO TABLE @DATA(IT_PMPACTIVITY2).
*--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_PMPACTIVITY INDEX 1 INTO DATA(WA_PMPACTIVITY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMPACTIVITY>-MANDT = 1.
<PMPACTIVITY>-MASTERPROJECT = 1.
<PMPACTIVITY>-MASTERPROJECTNAME = 1.
<PMPACTIVITY>-MASTERPROJECTUUID = 1.
<PMPACTIVITY>-MASTERPROJECTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMPACTIVITY-MASTERPROJECTISCONFIDENTIAL, sy-vline,
  WA_PMPACTIVITY-MASTERPROJECTORGANIZATION, sy-vline,
  WA_PMPACTIVITY-ACTIVITYUUID, sy-vline,
  WA_PMPACTIVITY-REFERENCEDOCUMENT, sy-vline,
  WA_PMPACTIVITY-REFERENCEDOCUMENTDESC, sy-vline,
  WA_PMPACTIVITY-ISSUETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMPACTIVITY 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_PMPACTIVITY 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_PMPACTIVITY INTO WA_PMPACTIVITY.


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

*Conversion exit ALPHA, internal->external for field MSTRPROJACTIVITYID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMPACTIVITY-MSTRPROJACTIVITYID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMPACTIVITY-MSTRPROJACTIVITYID.
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_PMPACTIVITY_STR, 
MANDT TYPE STRING,
MASTERPROJECT TYPE STRING,
MASTERPROJECTNAME TYPE STRING,
MASTERPROJECTUUID TYPE STRING,
MASTERPROJECTTYPE TYPE STRING,
MASTERPROJECTISCONFIDENTIAL TYPE STRING,
MASTERPROJECTORGANIZATION TYPE STRING,
ACTIVITYUUID TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTDESC TYPE STRING,
ISSUETYPE TYPE STRING,
ISSUECATEGORY TYPE STRING,
ORIGINAPPLICATION TYPE STRING,
MSTRPROJACTIVITYID TYPE STRING,
ACTIVITYTYPE TYPE STRING,
ACTIVITYNAME TYPE STRING,
STATUS TYPE STRING,
ACTIVITYSTATUSNAME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
CHANGEDONDATETIME TYPE STRING,
PRIORITYCODENAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMPACTIVITY_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_PMPACTIVITY_STR-MANDT sy-vline 
WA_PMPACTIVITY_STR-MASTERPROJECT sy-vline 
WA_PMPACTIVITY_STR-MASTERPROJECTNAME sy-vline 
WA_PMPACTIVITY_STR-MASTERPROJECTUUID sy-vline 
WA_PMPACTIVITY_STR-MASTERPROJECTTYPE sy-vline 
WA_PMPACTIVITY_STR-MASTERPROJECTISCONFIDENTIAL sy-vline 
WA_PMPACTIVITY_STR-MASTERPROJECTORGANIZATION sy-vline 
WA_PMPACTIVITY_STR-ACTIVITYUUID sy-vline 
WA_PMPACTIVITY_STR-REFERENCEDOCUMENT sy-vline 
WA_PMPACTIVITY_STR-REFERENCEDOCUMENTDESC sy-vline 
WA_PMPACTIVITY_STR-ISSUETYPE sy-vline 
WA_PMPACTIVITY_STR-ISSUECATEGORY sy-vline 
WA_PMPACTIVITY_STR-ORIGINAPPLICATION sy-vline 
WA_PMPACTIVITY_STR-MSTRPROJACTIVITYID sy-vline 
WA_PMPACTIVITY_STR-ACTIVITYTYPE sy-vline 
WA_PMPACTIVITY_STR-ACTIVITYNAME sy-vline 
WA_PMPACTIVITY_STR-STATUS sy-vline 
WA_PMPACTIVITY_STR-ACTIVITYSTATUSNAME sy-vline 
WA_PMPACTIVITY_STR-LASTCHANGEDBYUSER sy-vline 
WA_PMPACTIVITY_STR-CREATEDBYUSER sy-vline 
WA_PMPACTIVITY_STR-CREATIONDATETIME sy-vline 
WA_PMPACTIVITY_STR-CHANGEDONDATETIME sy-vline 
WA_PMPACTIVITY_STR-PRIORITYCODENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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