ABAP Select data from SAP table SCRL_D_PARAMETER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCRL_D_PARAMETER
*  INTO TABLE @DATA(IT_SCRL_D_PARAMETER2).
*--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_SCRL_D_PARAMETER INDEX 1 INTO DATA(WA_SCRL_D_PARAMETER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCRL_D_PARAMETER>-MANDT = 1.
<SCRL_D_PARAMETER>-DRAFTUUID = 1.
<SCRL_D_PARAMETER>-PARENTDRAFTUUID = 1.
<SCRL_D_PARAMETER>-ROOTDRAFTUUID = 1.
<SCRL_D_PARAMETER>-LIBRARYID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCRL_D_PARAMETER-VERSIONNUMBER, sy-vline,
  WA_SCRL_D_PARAMETER-METHODID, sy-vline,
  WA_SCRL_D_PARAMETER-PARAMETERID, sy-vline,
  WA_SCRL_D_PARAMETER-PARAMETERIDFOREDIT, sy-vline,
  WA_SCRL_D_PARAMETER-DESCRIPTION, sy-vline,
  WA_SCRL_D_PARAMETER-KIND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCRL_D_PARAMETER 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_SCRL_D_PARAMETER 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_SCRL_D_PARAMETER INTO WA_SCRL_D_PARAMETER.


*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_SCRL_D_PARAMETER_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
PARENTDRAFTUUID TYPE STRING,
ROOTDRAFTUUID TYPE STRING,
LIBRARYID TYPE STRING,
VERSIONNUMBER TYPE STRING,
METHODID TYPE STRING,
PARAMETERID TYPE STRING,
PARAMETERIDFOREDIT TYPE STRING,
DESCRIPTION TYPE STRING,
KIND TYPE STRING,
ISOPTIONAL TYPE STRING,
TYPE TYPE STRING,
LENGTH TYPE STRING,
SCALE TYPE STRING,
CODELIST TYPE STRING,
DATASOURCE TYPE STRING,
STRUCTURE TYPE STRING,
TABLENAME TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCRL_D_PARAMETER_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_SCRL_D_PARAMETER_STR-MANDT sy-vline 
WA_SCRL_D_PARAMETER_STR-DRAFTUUID sy-vline 
WA_SCRL_D_PARAMETER_STR-PARENTDRAFTUUID sy-vline 
WA_SCRL_D_PARAMETER_STR-ROOTDRAFTUUID sy-vline 
WA_SCRL_D_PARAMETER_STR-LIBRARYID sy-vline 
WA_SCRL_D_PARAMETER_STR-VERSIONNUMBER sy-vline 
WA_SCRL_D_PARAMETER_STR-METHODID sy-vline 
WA_SCRL_D_PARAMETER_STR-PARAMETERID sy-vline 
WA_SCRL_D_PARAMETER_STR-PARAMETERIDFOREDIT sy-vline 
WA_SCRL_D_PARAMETER_STR-DESCRIPTION sy-vline 
WA_SCRL_D_PARAMETER_STR-KIND sy-vline 
WA_SCRL_D_PARAMETER_STR-ISOPTIONAL sy-vline 
WA_SCRL_D_PARAMETER_STR-TYPE sy-vline 
WA_SCRL_D_PARAMETER_STR-LENGTH sy-vline 
WA_SCRL_D_PARAMETER_STR-SCALE sy-vline 
WA_SCRL_D_PARAMETER_STR-CODELIST sy-vline 
WA_SCRL_D_PARAMETER_STR-DATASOURCE sy-vline 
WA_SCRL_D_PARAMETER_STR-STRUCTURE sy-vline 
WA_SCRL_D_PARAMETER_STR-TABLENAME sy-vline 
WA_SCRL_D_PARAMETER_STR-HASACTIVEENTITY sy-vline 
WA_SCRL_D_PARAMETER_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_SCRL_D_PARAMETER_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_SCRL_D_PARAMETER_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_SCRL_D_PARAMETER_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_SCRL_D_PARAMETER_STR-DRAFTENTITYOPERATIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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