ABAP Select data from SAP table CMLSGRAPHOV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMLSGRAPHOV
*  INTO TABLE @DATA(IT_CMLSGRAPHOV2).
*--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_CMLSGRAPHOV INDEX 1 INTO DATA(WA_CMLSGRAPHOV2).


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

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

ENDLOOP.

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

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


*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_CMLSGRAPHOV-PROJECTMILESTONE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMLSGRAPHOV-PROJECTMILESTONE.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MLSTNDATEOFFSETDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CMLSGRAPHOV-MLSTNDATEOFFSETDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMLSGRAPHOV-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_CMLSGRAPHOV_STR, 
MANDT TYPE STRING,
PROJECTMILESTONE TYPE STRING,
PROJECTMILESTONEINTERNALID TYPE STRING,
VERSION TYPE STRING,
WBSELEMENTEXTERNALID TYPE STRING,
WBSELEMENTOBJECT TYPE STRING,
PROJECTEXTERNALID 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,END OF T_EKKO_STR.
DATA: WA_CMLSGRAPHOV_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_CMLSGRAPHOV_STR-MANDT sy-vline 
WA_CMLSGRAPHOV_STR-PROJECTMILESTONE sy-vline 
WA_CMLSGRAPHOV_STR-PROJECTMILESTONEINTERNALID sy-vline 
WA_CMLSGRAPHOV_STR-VERSION sy-vline 
WA_CMLSGRAPHOV_STR-WBSELEMENTEXTERNALID sy-vline 
WA_CMLSGRAPHOV_STR-WBSELEMENTOBJECT sy-vline 
WA_CMLSGRAPHOV_STR-PROJECTEXTERNALID sy-vline 
WA_CMLSGRAPHOV_STR-PROJECTNETWORK sy-vline 
WA_CMLSGRAPHOV_STR-NETWORKACTIVITY sy-vline 
WA_CMLSGRAPHOV_STR-SUPERIORNTWKACTIVITYEXTERNALID sy-vline 
WA_CMLSGRAPHOV_STR-WBSELEMENTHIERARCHYLEVEL sy-vline 
WA_CMLSGRAPHOV_STR-WBSDESCRIPTION sy-vline 
WA_CMLSGRAPHOV_STR-PROJECTDESCRIPTION sy-vline 
WA_CMLSGRAPHOV_STR-PROJECTNETWORKDESCRIPTION sy-vline 
WA_CMLSGRAPHOV_STR-NETWORKACTIVITYDESCRIPTION sy-vline 
WA_CMLSGRAPHOV_STR-WBSELEMENTINTERNALID sy-vline 
WA_CMLSGRAPHOV_STR-PROJECTNETWORKINTERNALID sy-vline 
WA_CMLSGRAPHOV_STR-NETWORKACTIVITYINTERNALID sy-vline 
WA_CMLSGRAPHOV_STR-AUTHORIZATIONGROUP sy-vline 
WA_CMLSGRAPHOV_STR-MILESTONEDESCRIPTION sy-vline 
WA_CMLSGRAPHOV_STR-USAGECODE sy-vline 
WA_CMLSGRAPHOV_STR-USAGECODENAME sy-vline 
WA_CMLSGRAPHOV_STR-LASTCHANGEDATE sy-vline 
WA_CMLSGRAPHOV_STR-SCHEDULEDBASICDATE sy-vline 
WA_CMLSGRAPHOV_STR-SCHEDULEDFORECASTEDDATE sy-vline 
WA_CMLSGRAPHOV_STR-FIXEDBASICDATE sy-vline 
WA_CMLSGRAPHOV_STR-FORECASTEDFIXEDDATE sy-vline 
WA_CMLSGRAPHOV_STR-ACTUALENDDATE sy-vline 
WA_CMLSGRAPHOV_STR-CREATEDBYUSER sy-vline 
WA_CMLSGRAPHOV_STR-CREATIONDATE sy-vline 
WA_CMLSGRAPHOV_STR-LASTCHANGEDBYUSER sy-vline 
WA_CMLSGRAPHOV_STR-DUEDAYS sy-vline 
WA_CMLSGRAPHOV_STR-OVERDUEDAYS sy-vline 
WA_CMLSGRAPHOV_STR-COMPLETIONRATEINPERCENT sy-vline 
WA_CMLSGRAPHOV_STR-PROJCOSTTOBEINVOICEDPERCENT sy-vline 
WA_CMLSGRAPHOV_STR-ISDELETED sy-vline 
WA_CMLSGRAPHOV_STR-MLSTNISRELEVANTFORPRGRSANLYS sy-vline 
WA_CMLSGRAPHOV_STR-MLSTNISRELEVANTFORDTEINSLSDOC sy-vline 
WA_CMLSGRAPHOV_STR-MLSTNISRELEVANTFORTRENDANLYS sy-vline 
WA_CMLSGRAPHOV_STR-MLSTNISUSEDFORMLSTNFUNC sy-vline 
WA_CMLSGRAPHOV_STR-MLSTNRELEASESTOPISACTIVE sy-vline 
WA_CMLSGRAPHOV_STR-DATEISOFFSETTOPARENTENDDATE sy-vline 
WA_CMLSGRAPHOV_STR-MLSTNDATEOFFSETPERCENT sy-vline 
WA_CMLSGRAPHOV_STR-MLSTNDATEOFFSETDURATIONUNIT sy-vline 
WA_CMLSGRAPHOV_STR-MLSTNDATEOFFSETDURATION sy-vline 
WA_CMLSGRAPHOV_STR-DATEISOFFSETTOPARENTLTSTDATES sy-vline 
WA_CMLSGRAPHOV_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.