ABAP Select data from SAP table CRM_SVY_DB_S_V into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRM_SVY_DB_S_V
*  INTO TABLE @DATA(IT_CRM_SVY_DB_S_V2).
*--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_CRM_SVY_DB_S_V INDEX 1 INTO DATA(WA_CRM_SVY_DB_S_V2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRM_SVY_DB_S_V>-SURVEYGUID = 1.
<CRM_SVY_DB_S_V>-MASTERLANGUAGE = 1.
<CRM_SVY_DB_S_V>-PERSISTVALUES = 1.
<CRM_SVY_DB_S_V>-SUPPORTQUERIES = 1.
<CRM_SVY_DB_S_V>-SUPPORTBW = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRM_SVY_DB_S_V-VALUESVERSIONING, sy-vline,
  WA_CRM_SVY_DB_S_V-VALUESDELETES, sy-vline,
  WA_CRM_SVY_DB_S_V-VALUESUPDATES, sy-vline,
  WA_CRM_SVY_DB_S_V-CALLBACKPBO, sy-vline,
  WA_CRM_SVY_DB_S_V-CALLBACKPAI, sy-vline,
  WA_CRM_SVY_DB_S_V-PUBLIC_SVY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRM_SVY_DB_S_V 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_CRM_SVY_DB_S_V 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_CRM_SVY_DB_S_V INTO WA_CRM_SVY_DB_S_V.


*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 ISOLA, internal->external for field MASTERLANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CRM_SVY_DB_S_V-MASTERLANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRM_SVY_DB_S_V-MASTERLANGUAGE.
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_CRM_SVY_DB_S_V_STR, 
SURVEYGUID TYPE STRING,
MASTERLANGUAGE TYPE STRING,
PERSISTVALUES TYPE STRING,
SUPPORTQUERIES TYPE STRING,
SUPPORTBW TYPE STRING,
VALUESVERSIONING TYPE STRING,
VALUESDELETES TYPE STRING,
VALUESUPDATES TYPE STRING,
CALLBACKPBO TYPE STRING,
CALLBACKPAI TYPE STRING,
PUBLIC_SVY TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
SCHEMAVERSION TYPE STRING,
APPLICATIONID TYPE STRING,
TESTVALUEGUID TYPE STRING,
TESTVALUEVERSION TYPE STRING,
TESTPASSED TYPE STRING,
CREATED_AT TYPE STRING,
CREATED_BY TYPE STRING,
MODIFIED_AT TYPE STRING,
MODIFIED_BY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRM_SVY_DB_S_V_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_CRM_SVY_DB_S_V_STR-SURVEYGUID sy-vline 
WA_CRM_SVY_DB_S_V_STR-MASTERLANGUAGE sy-vline 
WA_CRM_SVY_DB_S_V_STR-PERSISTVALUES sy-vline 
WA_CRM_SVY_DB_S_V_STR-SUPPORTQUERIES sy-vline 
WA_CRM_SVY_DB_S_V_STR-SUPPORTBW sy-vline 
WA_CRM_SVY_DB_S_V_STR-VALUESVERSIONING sy-vline 
WA_CRM_SVY_DB_S_V_STR-VALUESDELETES sy-vline 
WA_CRM_SVY_DB_S_V_STR-VALUESUPDATES sy-vline 
WA_CRM_SVY_DB_S_V_STR-CALLBACKPBO sy-vline 
WA_CRM_SVY_DB_S_V_STR-CALLBACKPAI sy-vline 
WA_CRM_SVY_DB_S_V_STR-PUBLIC_SVY sy-vline 
WA_CRM_SVY_DB_S_V_STR-VALIDFROM sy-vline 
WA_CRM_SVY_DB_S_V_STR-VALIDTO sy-vline 
WA_CRM_SVY_DB_S_V_STR-SCHEMAVERSION sy-vline 
WA_CRM_SVY_DB_S_V_STR-APPLICATIONID sy-vline 
WA_CRM_SVY_DB_S_V_STR-TESTVALUEGUID sy-vline 
WA_CRM_SVY_DB_S_V_STR-TESTVALUEVERSION sy-vline 
WA_CRM_SVY_DB_S_V_STR-TESTPASSED sy-vline 
WA_CRM_SVY_DB_S_V_STR-CREATED_AT sy-vline 
WA_CRM_SVY_DB_S_V_STR-CREATED_BY sy-vline 
WA_CRM_SVY_DB_S_V_STR-MODIFIED_AT sy-vline 
WA_CRM_SVY_DB_S_V_STR-MODIFIED_BY sy-vline      INTO ld_text SEPARATED BY SPACE.

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