ABAP Select data from SAP table CMASTERPROJECT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMASTERPROJECT
*  INTO TABLE @DATA(IT_CMASTERPROJECT2).
*--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_CMASTERPROJECT INDEX 1 INTO DATA(WA_CMASTERPROJECT2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMASTERPROJECT-ISUSERSTATUS, sy-vline,
  WA_CMASTERPROJECT-MASTERPROJECTTYPE, sy-vline,
  WA_CMASTERPROJECT-MASTERPROJECTTYPENAME, sy-vline,
  WA_CMASTERPROJECT-MASTERPROJECTSTAGE, sy-vline,
  WA_CMASTERPROJECT-MASTERPROJECTSTAGENAME, sy-vline,
  WA_CMASTERPROJECT-STARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMASTERPROJECT 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_CMASTERPROJECT 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_CMASTERPROJECT INTO WA_CMASTERPROJECT.


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

*Conversion exit SXIDN, internal->external for field EMAILADDRESS
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_CMASTERPROJECT-EMAILADDRESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMASTERPROJECT-EMAILADDRESS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROJECTMANAGERNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMASTERPROJECT-PROJECTMANAGERNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMASTERPROJECT-PROJECTMANAGERNAME.
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_CMASTERPROJECT_STR, 
MANDT TYPE STRING,
MASTERPROJECT TYPE STRING,
MASTERPROJECTUUID TYPE STRING,
PROJECTUUID TYPE STRING,
MASTERPROJECTNAME TYPE STRING,
ISUSERSTATUS TYPE STRING,
MASTERPROJECTTYPE TYPE STRING,
MASTERPROJECTTYPENAME TYPE STRING,
MASTERPROJECTSTAGE TYPE STRING,
MASTERPROJECTSTAGENAME TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
CUSTOMER TYPE STRING,
CUSTOMERNAME TYPE STRING,
EMAILADDRESS TYPE STRING,
MOBILEPHONENUMBER TYPE STRING,
PHONENUMBER TYPE STRING,
MASTERPROJECTORGANIZATION TYPE STRING,
MASTERPROJECTORGANIZATIONNAME TYPE STRING,
MASTERPROJECTISCONFIDENTIAL TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
WORKTYPE TYPE STRING,
INDUSTRY TYPE STRING,
PROJECTRISK TYPE STRING,
FINANCIALRISK TYPE STRING,
TECHNICALRISK TYPE STRING,
OVERALLRISK TYPE STRING,
INTERNALINSPECTIONDATE TYPE STRING,
EXTERNALINSPECTIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
PROJECTLASTCHANGEDDATETIME TYPE STRING,
CHANGEDBY TYPE STRING,
CREATIONDATETIME TYPE STRING,
CNTCTPERSNISMANUALLYCREATED TYPE STRING,
MASTERPROJECTSTAGEPROFILE TYPE STRING,
BUSINESSPARTNER TYPE STRING,
PROJECTMANAGERNAME TYPE STRING,
PROJECTMANAGER TYPE STRING,
MSTRPROJFINANCIALPLANUUID TYPE STRING,
FINANCIALPLANSCENARIO TYPE STRING,
FINANCIALPLANSTARTDATE TYPE STRING,
FINANCIALPLANENDDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMASTERPROJECT_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_CMASTERPROJECT_STR-MANDT sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECT sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECTUUID sy-vline 
WA_CMASTERPROJECT_STR-PROJECTUUID sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECTNAME sy-vline 
WA_CMASTERPROJECT_STR-ISUSERSTATUS sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECTTYPE sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECTTYPENAME sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECTSTAGE sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECTSTAGENAME sy-vline 
WA_CMASTERPROJECT_STR-STARTDATE sy-vline 
WA_CMASTERPROJECT_STR-ENDDATE sy-vline 
WA_CMASTERPROJECT_STR-CUSTOMER sy-vline 
WA_CMASTERPROJECT_STR-CUSTOMERNAME sy-vline 
WA_CMASTERPROJECT_STR-EMAILADDRESS sy-vline 
WA_CMASTERPROJECT_STR-MOBILEPHONENUMBER sy-vline 
WA_CMASTERPROJECT_STR-PHONENUMBER sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECTORGANIZATION sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECTORGANIZATIONNAME sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECTISCONFIDENTIAL sy-vline 
WA_CMASTERPROJECT_STR-COUNTRY sy-vline 
WA_CMASTERPROJECT_STR-REGION sy-vline 
WA_CMASTERPROJECT_STR-WORKTYPE sy-vline 
WA_CMASTERPROJECT_STR-INDUSTRY sy-vline 
WA_CMASTERPROJECT_STR-PROJECTRISK sy-vline 
WA_CMASTERPROJECT_STR-FINANCIALRISK sy-vline 
WA_CMASTERPROJECT_STR-TECHNICALRISK sy-vline 
WA_CMASTERPROJECT_STR-OVERALLRISK sy-vline 
WA_CMASTERPROJECT_STR-INTERNALINSPECTIONDATE sy-vline 
WA_CMASTERPROJECT_STR-EXTERNALINSPECTIONDATE sy-vline 
WA_CMASTERPROJECT_STR-CREATEDBYUSER sy-vline 
WA_CMASTERPROJECT_STR-PROJECTLASTCHANGEDDATETIME sy-vline 
WA_CMASTERPROJECT_STR-CHANGEDBY sy-vline 
WA_CMASTERPROJECT_STR-CREATIONDATETIME sy-vline 
WA_CMASTERPROJECT_STR-CNTCTPERSNISMANUALLYCREATED sy-vline 
WA_CMASTERPROJECT_STR-MASTERPROJECTSTAGEPROFILE sy-vline 
WA_CMASTERPROJECT_STR-BUSINESSPARTNER sy-vline 
WA_CMASTERPROJECT_STR-PROJECTMANAGERNAME sy-vline 
WA_CMASTERPROJECT_STR-PROJECTMANAGER sy-vline 
WA_CMASTERPROJECT_STR-MSTRPROJFINANCIALPLANUUID sy-vline 
WA_CMASTERPROJECT_STR-FINANCIALPLANSCENARIO sy-vline 
WA_CMASTERPROJECT_STR-FINANCIALPLANSTARTDATE sy-vline 
WA_CMASTERPROJECT_STR-FINANCIALPLANENDDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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