ABAP Select data from SAP table CVSE_SEARCH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CVSE_SEARCH
*  INTO TABLE @DATA(IT_CVSE_SEARCH2).
*--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_CVSE_SEARCH INDEX 1 INTO DATA(WA_CVSE_SEARCH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CVSE_SEARCH>-FREETEXT = 1.
<CVSE_SEARCH>-FREETEXT_DVS = 1.
<CVSE_SEARCH>-FREETEXT_APP = 1.
<CVSE_SEARCH>-FREETEXT_CLS = 1.
<CVSE_SEARCH>-FREETEXT_CONT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CVSE_SEARCH-CRITERION1, sy-vline,
  WA_CVSE_SEARCH-CRITERION2, sy-vline,
  WA_CVSE_SEARCH-CRITERION3, sy-vline,
  WA_CVSE_SEARCH-CRITERION4, sy-vline,
  WA_CVSE_SEARCH-CRITERION5, sy-vline,
  WA_CVSE_SEARCH-LISTBOX1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CVSE_SEARCH 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_CVSE_SEARCH 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_CVSE_SEARCH INTO WA_CVSE_SEARCH.


*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_CVSE_SEARCH_STR, 
FREETEXT TYPE STRING,
FREETEXT_DVS TYPE STRING,
FREETEXT_APP TYPE STRING,
FREETEXT_CLS TYPE STRING,
FREETEXT_CONT TYPE STRING,
CRITERION1 TYPE STRING,
CRITERION2 TYPE STRING,
CRITERION3 TYPE STRING,
CRITERION4 TYPE STRING,
CRITERION5 TYPE STRING,
LISTBOX1 TYPE STRING,
LISTBOX2 TYPE STRING,
LISTBOX3 TYPE STRING,
LISTBOX4 TYPE STRING,
LISTBOX5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CVSE_SEARCH_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_CVSE_SEARCH_STR-FREETEXT sy-vline 
WA_CVSE_SEARCH_STR-FREETEXT_DVS sy-vline 
WA_CVSE_SEARCH_STR-FREETEXT_APP sy-vline 
WA_CVSE_SEARCH_STR-FREETEXT_CLS sy-vline 
WA_CVSE_SEARCH_STR-FREETEXT_CONT sy-vline 
WA_CVSE_SEARCH_STR-CRITERION1 sy-vline 
WA_CVSE_SEARCH_STR-CRITERION2 sy-vline 
WA_CVSE_SEARCH_STR-CRITERION3 sy-vline 
WA_CVSE_SEARCH_STR-CRITERION4 sy-vline 
WA_CVSE_SEARCH_STR-CRITERION5 sy-vline 
WA_CVSE_SEARCH_STR-LISTBOX1 sy-vline 
WA_CVSE_SEARCH_STR-LISTBOX2 sy-vline 
WA_CVSE_SEARCH_STR-LISTBOX3 sy-vline 
WA_CVSE_SEARCH_STR-LISTBOX4 sy-vline 
WA_CVSE_SEARCH_STR-LISTBOX5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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