ABAP Select data from SAP table IPROJMLSTNVERSN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPROJMLSTNVERSN
*  INTO TABLE @DATA(IT_IPROJMLSTNVERSN2).
*--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_IPROJMLSTNVERSN INDEX 1 INTO DATA(WA_IPROJMLSTNVERSN2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPROJMLSTNVERSN-USAGECODE, sy-vline,
  WA_IPROJMLSTNVERSN-PROJECTNETWORKINTERNALID, sy-vline,
  WA_IPROJMLSTNVERSN-NETWORKACTIVITYINTERNALID, sy-vline,
  WA_IPROJMLSTNVERSN-WBSELEMENTINTERNALID, sy-vline,
  WA_IPROJMLSTNVERSN-SCHEDULEDBASICDATE, sy-vline,
  WA_IPROJMLSTNVERSN-FIXEDBASICDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPROJMLSTNVERSN 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_IPROJMLSTNVERSN 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_IPROJMLSTNVERSN INTO WA_IPROJMLSTNVERSN.


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

*Conversion exit CUNIT, internal->external for field MLSTNDATEOFFSETDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IPROJMLSTNVERSN-MLSTNDATEOFFSETDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPROJMLSTNVERSN-MLSTNDATEOFFSETDURATIONUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COMPLETIONRATEINPERCENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IPROJMLSTNVERSN-COMPLETIONRATEINPERCENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPROJMLSTNVERSN-COMPLETIONRATEINPERCENT.
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_IPROJMLSTNVERSN_STR, 
MANDT TYPE STRING,
PROJECTMILESTONE TYPE STRING,
VERSION TYPE STRING,
PROJECTMILESTONEINTERNALID TYPE STRING,
ISDELETED TYPE STRING,
USAGECODE TYPE STRING,
PROJECTNETWORKINTERNALID TYPE STRING,
NETWORKACTIVITYINTERNALID TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
SCHEDULEDBASICDATE TYPE STRING,
FIXEDBASICDATE TYPE STRING,
SCHEDULEDFORECASTEDDATE TYPE STRING,
FORECASTEDFIXEDDATE TYPE STRING,
MLSTNISRELEVANTFORTRENDANLYS TYPE STRING,
MLSTNISRELEVANTFORPRGRSANLYS TYPE STRING,
MLSTNISRELEVANTFORDTEINSLSDOC TYPE STRING,
ACTUALENDDATE TYPE STRING,
ORDERCATEGORY TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEDATE TYPE STRING,
MLSTNISMARKEDFORCREATENTWK TYPE STRING,
MLSTNISMARKEDFORINCLUDESUBNTWK TYPE STRING,
MLSTNISMARKEDFORCREATESUBNTWK TYPE STRING,
MLSTNRELEASESTOPISACTIVE TYPE STRING,
MLSTNISUSEDFORMLSTNFUNC TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
MLSTNISMARKEDFORRELUPTOSTOPIND TYPE STRING,
MLSTNISMARKEDFORRELFLLWNGACTY TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
MLSTNISMARKEDFORSTRTWRKFLWTSK TYPE STRING,
DATEISOFFSETTOPARENTENDDATE TYPE STRING,
MLSTNDATEOFFSETPERCENT TYPE STRING,
MLSTNDATEOFFSETDURATIONUNIT TYPE STRING,
MLSTNDATEOFFSETDURATION TYPE STRING,
DATEISOFFSETTOPARENTLTSTDATES TYPE STRING,
COMPLETIONRATEINPERCENT TYPE STRING,
PROJCOSTTOBEINVOICEDPERCENT TYPE STRING,
WORKFLOWTASK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPROJMLSTNVERSN_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_IPROJMLSTNVERSN_STR-MANDT sy-vline 
WA_IPROJMLSTNVERSN_STR-PROJECTMILESTONE sy-vline 
WA_IPROJMLSTNVERSN_STR-VERSION sy-vline 
WA_IPROJMLSTNVERSN_STR-PROJECTMILESTONEINTERNALID sy-vline 
WA_IPROJMLSTNVERSN_STR-ISDELETED sy-vline 
WA_IPROJMLSTNVERSN_STR-USAGECODE sy-vline 
WA_IPROJMLSTNVERSN_STR-PROJECTNETWORKINTERNALID sy-vline 
WA_IPROJMLSTNVERSN_STR-NETWORKACTIVITYINTERNALID sy-vline 
WA_IPROJMLSTNVERSN_STR-WBSELEMENTINTERNALID sy-vline 
WA_IPROJMLSTNVERSN_STR-SCHEDULEDBASICDATE sy-vline 
WA_IPROJMLSTNVERSN_STR-FIXEDBASICDATE sy-vline 
WA_IPROJMLSTNVERSN_STR-SCHEDULEDFORECASTEDDATE sy-vline 
WA_IPROJMLSTNVERSN_STR-FORECASTEDFIXEDDATE sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNISRELEVANTFORTRENDANLYS sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNISRELEVANTFORPRGRSANLYS sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNISRELEVANTFORDTEINSLSDOC sy-vline 
WA_IPROJMLSTNVERSN_STR-ACTUALENDDATE sy-vline 
WA_IPROJMLSTNVERSN_STR-ORDERCATEGORY sy-vline 
WA_IPROJMLSTNVERSN_STR-CREATIONDATE sy-vline 
WA_IPROJMLSTNVERSN_STR-LASTCHANGEDATE sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNISMARKEDFORCREATENTWK sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNISMARKEDFORINCLUDESUBNTWK sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNISMARKEDFORCREATESUBNTWK sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNRELEASESTOPISACTIVE sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNISUSEDFORMLSTNFUNC sy-vline 
WA_IPROJMLSTNVERSN_STR-AUTHORIZATIONGROUP sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNISMARKEDFORRELUPTOSTOPIND sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNISMARKEDFORRELFLLWNGACTY sy-vline 
WA_IPROJMLSTNVERSN_STR-CREATEDBYUSER sy-vline 
WA_IPROJMLSTNVERSN_STR-LASTCHANGEDBYUSER sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNISMARKEDFORSTRTWRKFLWTSK sy-vline 
WA_IPROJMLSTNVERSN_STR-DATEISOFFSETTOPARENTENDDATE sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNDATEOFFSETPERCENT sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNDATEOFFSETDURATIONUNIT sy-vline 
WA_IPROJMLSTNVERSN_STR-MLSTNDATEOFFSETDURATION sy-vline 
WA_IPROJMLSTNVERSN_STR-DATEISOFFSETTOPARENTLTSTDATES sy-vline 
WA_IPROJMLSTNVERSN_STR-COMPLETIONRATEINPERCENT sy-vline 
WA_IPROJMLSTNVERSN_STR-PROJCOSTTOBEINVOICEDPERCENT sy-vline 
WA_IPROJMLSTNVERSN_STR-WORKFLOWTASK sy-vline      INTO ld_text SEPARATED BY SPACE.

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