ABAP Select data from SAP table I_V_SCRL_PARA_TP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM I_V_SCRL_PARA_TP
*  INTO TABLE @DATA(IT_I_V_SCRL_PARA_TP2).
*--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_I_V_SCRL_PARA_TP INDEX 1 INTO DATA(WA_I_V_SCRL_PARA_TP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<I_V_SCRL_PARA_TP>-LIBRARYID = 1.
<I_V_SCRL_PARA_TP>-VERSIONNUMBER = 1.
<I_V_SCRL_PARA_TP>-METHODID = 1.
<I_V_SCRL_PARA_TP>-PARAMETERID = 1.
<I_V_SCRL_PARA_TP>-PARAMETERIDFOREDIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_I_V_SCRL_PARA_TP-DESCRIPTION, sy-vline,
  WA_I_V_SCRL_PARA_TP-KIND, sy-vline,
  WA_I_V_SCRL_PARA_TP-ISOPTIONAL, sy-vline,
  WA_I_V_SCRL_PARA_TP-TYPE, sy-vline,
  WA_I_V_SCRL_PARA_TP-LENGTH, sy-vline,
  WA_I_V_SCRL_PARA_TP-SCALE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_I_V_SCRL_PARA_TP 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_I_V_SCRL_PARA_TP 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_I_V_SCRL_PARA_TP INTO WA_I_V_SCRL_PARA_TP.


*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_I_V_SCRL_PARA_TP_STR, 
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,END OF T_EKKO_STR.
DATA: WA_I_V_SCRL_PARA_TP_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_I_V_SCRL_PARA_TP_STR-LIBRARYID sy-vline 
WA_I_V_SCRL_PARA_TP_STR-VERSIONNUMBER sy-vline 
WA_I_V_SCRL_PARA_TP_STR-METHODID sy-vline 
WA_I_V_SCRL_PARA_TP_STR-PARAMETERID sy-vline 
WA_I_V_SCRL_PARA_TP_STR-PARAMETERIDFOREDIT sy-vline 
WA_I_V_SCRL_PARA_TP_STR-DESCRIPTION sy-vline 
WA_I_V_SCRL_PARA_TP_STR-KIND sy-vline 
WA_I_V_SCRL_PARA_TP_STR-ISOPTIONAL sy-vline 
WA_I_V_SCRL_PARA_TP_STR-TYPE sy-vline 
WA_I_V_SCRL_PARA_TP_STR-LENGTH sy-vline 
WA_I_V_SCRL_PARA_TP_STR-SCALE sy-vline 
WA_I_V_SCRL_PARA_TP_STR-CODELIST sy-vline 
WA_I_V_SCRL_PARA_TP_STR-DATASOURCE sy-vline 
WA_I_V_SCRL_PARA_TP_STR-STRUCTURE sy-vline 
WA_I_V_SCRL_PARA_TP_STR-TABLENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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