ABAP Select data from SAP table USRCRIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM USRCRIT
*  INTO TABLE @DATA(IT_USRCRIT2).
*--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_USRCRIT INDEX 1 INTO DATA(WA_USRCRIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<USRCRIT>-AUTH_ID = 1.
<USRCRIT>-COMB_ID = 1.
<USRCRIT>-TEXT = 1.
<USRCRIT>-BNAME = 1.
<USRCRIT>-NAME_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_USRCRIT-CLASS, sy-vline,
  WA_USRCRIT-GLTGV, sy-vline,
  WA_USRCRIT-GLTGB, sy-vline,
  WA_USRCRIT-ACCNT, sy-vline,
  WA_USRCRIT-USTYP, sy-vline,
  WA_USRCRIT-REFUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_USRCRIT 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_USRCRIT 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_USRCRIT INTO WA_USRCRIT.


*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 USTYP, internal->external for field USTYP
CALL FUNCTION 'CONVERSION_EXIT_USTYP_OUTPUT'
  EXPORTING
    input =                      WA_USRCRIT-USTYP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_USRCRIT-USTYP.
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_USRCRIT_STR, 
AUTH_ID TYPE STRING,
COMB_ID TYPE STRING,
TEXT TYPE STRING,
BNAME TYPE STRING,
NAME_TEXT TYPE STRING,
CLASS TYPE STRING,
GLTGV TYPE STRING,
GLTGB TYPE STRING,
ACCNT TYPE STRING,
USTYP TYPE STRING,
REFUSER TYPE STRING,
USERALIAS TYPE STRING,
DEPARTMENT TYPE STRING,
CT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_USRCRIT_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_USRCRIT_STR-AUTH_ID sy-vline 
WA_USRCRIT_STR-COMB_ID sy-vline 
WA_USRCRIT_STR-TEXT sy-vline 
WA_USRCRIT_STR-BNAME sy-vline 
WA_USRCRIT_STR-NAME_TEXT sy-vline 
WA_USRCRIT_STR-CLASS sy-vline 
WA_USRCRIT_STR-GLTGV sy-vline 
WA_USRCRIT_STR-GLTGB sy-vline 
WA_USRCRIT_STR-ACCNT sy-vline 
WA_USRCRIT_STR-USTYP sy-vline 
WA_USRCRIT_STR-REFUSER sy-vline 
WA_USRCRIT_STR-USERALIAS sy-vline 
WA_USRCRIT_STR-DEPARTMENT sy-vline 
WA_USRCRIT_STR-CT sy-vline      INTO ld_text SEPARATED BY SPACE.

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