ABAP Select data from SAP table CMILESTONEVERS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMILESTONEVERS
*  INTO TABLE @DATA(IT_CMILESTONEVERS2).
*--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_CMILESTONEVERS INDEX 1 INTO DATA(WA_CMILESTONEVERS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMILESTONEVERS>-MANDT = 1.
<CMILESTONEVERS>-PROJECTMILESTONE = 1.
<CMILESTONEVERS>-PROJECTMILESTONEINTERNALID = 1.
<CMILESTONEVERS>-VERSION = 1.
<CMILESTONEVERS>-WBSELEMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMILESTONEVERS-WBSELEMENTOBJECT, sy-vline,
  WA_CMILESTONEVERS-PROJECT, sy-vline,
  WA_CMILESTONEVERS-PROJECTNETWORK, sy-vline,
  WA_CMILESTONEVERS-NETWORKACTIVITY, sy-vline,
  WA_CMILESTONEVERS-SUPERIORNTWKACTIVITYEXTERNALID, sy-vline,
  WA_CMILESTONEVERS-WBSELEMENTHIERARCHYLEVEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMILESTONEVERS 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_CMILESTONEVERS 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_CMILESTONEVERS INTO WA_CMILESTONEVERS.


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

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

*Conversion exit NUMCV, internal->external for field NETWORKACTIVITY
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CMILESTONEVERS-NETWORKACTIVITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMILESTONEVERS-NETWORKACTIVITY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field SUPERIORNTWKACTIVITYEXTERNALID
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CMILESTONEVERS-SUPERIORNTWKACTIVITYEXTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMILESTONEVERS-SUPERIORNTWKACTIVITYEXTERNALID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CMILESTONEVERS-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMILESTONEVERS-WBSELEMENTINTERNALID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MLSTNDATEOFFSETDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMILESTONEVERS-MLSTNDATEOFFSETDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMILESTONEVERS-MLSTNDATEOFFSETDURATIONUNIT.
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_CMILESTONEVERS_STR, 
MANDT TYPE STRING,
PROJECTMILESTONE TYPE STRING,
PROJECTMILESTONEINTERNALID TYPE STRING,
VERSION TYPE STRING,
WBSELEMENT TYPE STRING,
WBSELEMENTOBJECT TYPE STRING,
PROJECT TYPE STRING,
PROJECTNETWORK TYPE STRING,
NETWORKACTIVITY TYPE STRING,
SUPERIORNTWKACTIVITYEXTERNALID TYPE STRING,
WBSELEMENTHIERARCHYLEVEL TYPE STRING,
WBSDESCRIPTION TYPE STRING,
PROJECTDESCRIPTION TYPE STRING,
PROJECTNETWORKDESCRIPTION TYPE STRING,
NETWORKACTIVITYDESCRIPTION TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
PROJECTNETWORKINTERNALID TYPE STRING,
NETWORKACTIVITYINTERNALID TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
MILESTONEDESCRIPTION TYPE STRING,
USAGECODE TYPE STRING,
USAGECODENAME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
SCHEDULEDBASICDATE TYPE STRING,
SCHEDULEDFORECASTEDDATE TYPE STRING,
FIXEDBASICDATE TYPE STRING,
FORECASTEDFIXEDDATE TYPE STRING,
ACTUALENDDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
DUEDAYS TYPE STRING,
OVERDUEDAYS TYPE STRING,
COMPLETIONRATEINPERCENT TYPE STRING,
PROJCOSTTOBEINVOICEDPERCENT TYPE STRING,
ISDELETED TYPE STRING,
MLSTNISRELEVANTFORPRGRSANLYS TYPE STRING,
MLSTNISRELEVANTFORDTEINSLSDOC TYPE STRING,
MLSTNISRELEVANTFORTRENDANLYS TYPE STRING,
MLSTNISUSEDFORMLSTNFUNC TYPE STRING,
MLSTNRELEASESTOPISACTIVE TYPE STRING,
DATEISOFFSETTOPARENTENDDATE TYPE STRING,
MLSTNDATEOFFSETPERCENT TYPE STRING,
MLSTNDATEOFFSETDURATIONUNIT TYPE STRING,
MLSTNDATEOFFSETDURATION TYPE STRING,
DATEISOFFSETTOPARENTLTSTDATES TYPE STRING,
WORKFLOWTASK TYPE STRING,
PROJECTVERSIONDESCRIPTION TYPE STRING,
PROJECTVERSIONGROUPNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMILESTONEVERS_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_CMILESTONEVERS_STR-MANDT sy-vline 
WA_CMILESTONEVERS_STR-PROJECTMILESTONE sy-vline 
WA_CMILESTONEVERS_STR-PROJECTMILESTONEINTERNALID sy-vline 
WA_CMILESTONEVERS_STR-VERSION sy-vline 
WA_CMILESTONEVERS_STR-WBSELEMENT sy-vline 
WA_CMILESTONEVERS_STR-WBSELEMENTOBJECT sy-vline 
WA_CMILESTONEVERS_STR-PROJECT sy-vline 
WA_CMILESTONEVERS_STR-PROJECTNETWORK sy-vline 
WA_CMILESTONEVERS_STR-NETWORKACTIVITY sy-vline 
WA_CMILESTONEVERS_STR-SUPERIORNTWKACTIVITYEXTERNALID sy-vline 
WA_CMILESTONEVERS_STR-WBSELEMENTHIERARCHYLEVEL sy-vline 
WA_CMILESTONEVERS_STR-WBSDESCRIPTION sy-vline 
WA_CMILESTONEVERS_STR-PROJECTDESCRIPTION sy-vline 
WA_CMILESTONEVERS_STR-PROJECTNETWORKDESCRIPTION sy-vline 
WA_CMILESTONEVERS_STR-NETWORKACTIVITYDESCRIPTION sy-vline 
WA_CMILESTONEVERS_STR-WBSELEMENTINTERNALID sy-vline 
WA_CMILESTONEVERS_STR-PROJECTNETWORKINTERNALID sy-vline 
WA_CMILESTONEVERS_STR-NETWORKACTIVITYINTERNALID sy-vline 
WA_CMILESTONEVERS_STR-AUTHORIZATIONGROUP sy-vline 
WA_CMILESTONEVERS_STR-MILESTONEDESCRIPTION sy-vline 
WA_CMILESTONEVERS_STR-USAGECODE sy-vline 
WA_CMILESTONEVERS_STR-USAGECODENAME sy-vline 
WA_CMILESTONEVERS_STR-LASTCHANGEDATE sy-vline 
WA_CMILESTONEVERS_STR-SCHEDULEDBASICDATE sy-vline 
WA_CMILESTONEVERS_STR-SCHEDULEDFORECASTEDDATE sy-vline 
WA_CMILESTONEVERS_STR-FIXEDBASICDATE sy-vline 
WA_CMILESTONEVERS_STR-FORECASTEDFIXEDDATE sy-vline 
WA_CMILESTONEVERS_STR-ACTUALENDDATE sy-vline 
WA_CMILESTONEVERS_STR-CREATEDBYUSER sy-vline 
WA_CMILESTONEVERS_STR-CREATIONDATE sy-vline 
WA_CMILESTONEVERS_STR-LASTCHANGEDBYUSER sy-vline 
WA_CMILESTONEVERS_STR-DUEDAYS sy-vline 
WA_CMILESTONEVERS_STR-OVERDUEDAYS sy-vline 
WA_CMILESTONEVERS_STR-COMPLETIONRATEINPERCENT sy-vline 
WA_CMILESTONEVERS_STR-PROJCOSTTOBEINVOICEDPERCENT sy-vline 
WA_CMILESTONEVERS_STR-ISDELETED sy-vline 
WA_CMILESTONEVERS_STR-MLSTNISRELEVANTFORPRGRSANLYS sy-vline 
WA_CMILESTONEVERS_STR-MLSTNISRELEVANTFORDTEINSLSDOC sy-vline 
WA_CMILESTONEVERS_STR-MLSTNISRELEVANTFORTRENDANLYS sy-vline 
WA_CMILESTONEVERS_STR-MLSTNISUSEDFORMLSTNFUNC sy-vline 
WA_CMILESTONEVERS_STR-MLSTNRELEASESTOPISACTIVE sy-vline 
WA_CMILESTONEVERS_STR-DATEISOFFSETTOPARENTENDDATE sy-vline 
WA_CMILESTONEVERS_STR-MLSTNDATEOFFSETPERCENT sy-vline 
WA_CMILESTONEVERS_STR-MLSTNDATEOFFSETDURATIONUNIT sy-vline 
WA_CMILESTONEVERS_STR-MLSTNDATEOFFSETDURATION sy-vline 
WA_CMILESTONEVERS_STR-DATEISOFFSETTOPARENTLTSTDATES sy-vline 
WA_CMILESTONEVERS_STR-WORKFLOWTASK sy-vline 
WA_CMILESTONEVERS_STR-PROJECTVERSIONDESCRIPTION sy-vline 
WA_CMILESTONEVERS_STR-PROJECTVERSIONGROUPNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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