ABAP Select data from SAP table SYCM_S_APS_I_PRJ_USG1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SYCM_S_APS_I_PRJ_USG1 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 SYCM_S_APS_I_PRJ_USG1. 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 SYCM_S_APS_I_PRJ_USG1 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_SYCM_S_APS_I_PRJ_USG1 TYPE STANDARD TABLE OF SYCM_S_APS_I_PRJ_USG1,
      WA_SYCM_S_APS_I_PRJ_USG1 TYPE SYCM_S_APS_I_PRJ_USG1,
      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: <SYCM_S_APS_I_PRJ_USG1> TYPE SYCM_S_APS_I_PRJ_USG1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SYCM_S_APS_I_PRJ_USG1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SYCM_S_APS_I_PRJ_USG1
  INTO TABLE IT_SYCM_S_APS_I_PRJ_USG1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SYCM_S_APS_I_PRJ_USG1
*  INTO TABLE @DATA(IT_SYCM_S_APS_I_PRJ_USG12).
*--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_SYCM_S_APS_I_PRJ_USG1 INDEX 1 INTO DATA(WA_SYCM_S_APS_I_PRJ_USG12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SYCM_S_APS_I_PRJ_USG1 ASSIGNING <SYCM_S_APS_I_PRJ_USG1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SYCM_S_APS_I_PRJ_USG1>-KEY = 1.
<SYCM_S_APS_I_PRJ_USG1>-PARENT_KEY = 1.
<SYCM_S_APS_I_PRJ_USG1>-ROOT_KEY = 1.
<SYCM_S_APS_I_PRJ_USG1>-USAGE_DESCRIPTION = 1.
<SYCM_S_APS_I_PRJ_USG1>-RFC_DESTINATION = 1.

ENDLOOP.

LOOP AT IT_SYCM_S_APS_I_PRJ_USG1 INTO WA_SYCM_S_APS_I_PRJ_USG1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SYCM_S_APS_I_PRJ_USG1-SERVICE_INSTANCE_NAME, sy-vline,
  WA_SYCM_S_APS_I_PRJ_USG1-OBJECT_PROVIDER_ID, sy-vline,
  WA_SYCM_S_APS_I_PRJ_USG1-USAGE_ID_EXTERNAL, sy-vline,
  WA_SYCM_S_APS_I_PRJ_USG1-MANAGED_SYSTEM, sy-vline,
  WA_SYCM_S_APS_I_PRJ_USG1-KIND, sy-vline,
  WA_SYCM_S_APS_I_PRJ_USG1-ACTIVEUUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SYCM_S_APS_I_PRJ_USG1 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_SYCM_S_APS_I_PRJ_USG1 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_SYCM_S_APS_I_PRJ_USG1 INTO WA_SYCM_S_APS_I_PRJ_USG1.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_SYCM_S_APS_I_PRJ_USG1_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
USAGE_DESCRIPTION TYPE STRING,
RFC_DESTINATION TYPE STRING,
SERVICE_INSTANCE_NAME TYPE STRING,
OBJECT_PROVIDER_ID TYPE STRING,
USAGE_ID_EXTERNAL TYPE STRING,
MANAGED_SYSTEM TYPE STRING,
KIND TYPE STRING,
ACTIVEUUID TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SYCM_S_APS_I_PRJ_USG1_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_SYCM_S_APS_I_PRJ_USG1_STR-KEY sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-PARENT_KEY sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-ROOT_KEY sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-USAGE_DESCRIPTION sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-RFC_DESTINATION sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-SERVICE_INSTANCE_NAME sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-OBJECT_PROVIDER_ID sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-USAGE_ID_EXTERNAL sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-MANAGED_SYSTEM sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-KIND sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-ACTIVEUUID sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-HASACTIVEENTITY sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_SYCM_S_APS_I_PRJ_USG1_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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