ABAP Select data from SAP table V_TCACS_LOSSTODB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TCACS_LOSSTODB
*  INTO TABLE @DATA(IT_V_TCACS_LOSSTODB2).
*--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_V_TCACS_LOSSTODB INDEX 1 INTO DATA(WA_V_TCACS_LOSSTODB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TCACS_LOSSTODB>-MANDT = 1.
<V_TCACS_LOSSTODB>-APPL = 1.
<V_TCACS_LOSSTODB>-OBJ_TYPE = 1.
<V_TCACS_LOSSTODB>-TOOL = 1.
<V_TCACS_LOSSTODB>-OBJ_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TCACS_LOSSTODB-VERSION, sy-vline,
  WA_V_TCACS_LOSSTODB-SESBPER, sy-vline,
  WA_V_TCACS_LOSSTODB-SESBPNO, sy-vline,
  WA_V_TCACS_LOSSTODB-SESRDAS, sy-vline,
  WA_V_TCACS_LOSSTODB-SESHORI, sy-vline,
  WA_V_TCACS_LOSSTODB-SESHBDF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TCACS_LOSSTODB 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_V_TCACS_LOSSTODB 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_V_TCACS_LOSSTODB INTO WA_V_TCACS_LOSSTODB.


*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 TSTPS, internal->external for field BUSI_BEGIN
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_V_TCACS_LOSSTODB-BUSI_BEGIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TCACS_LOSSTODB-BUSI_BEGIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field BUSI_END
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_V_TCACS_LOSSTODB-BUSI_END
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TCACS_LOSSTODB-BUSI_END.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field TECH_BEGIN
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_V_TCACS_LOSSTODB-TECH_BEGIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TCACS_LOSSTODB-TECH_BEGIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field TECH_END
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_V_TCACS_LOSSTODB-TECH_END
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TCACS_LOSSTODB-TECH_END.
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_V_TCACS_LOSSTODB_STR, 
MANDT TYPE STRING,
APPL TYPE STRING,
OBJ_TYPE TYPE STRING,
TOOL TYPE STRING,
OBJ_ID TYPE STRING,
VERSION TYPE STRING,
SESBPER TYPE STRING,
SESBPNO TYPE STRING,
SESRDAS TYPE STRING,
SESHORI TYPE STRING,
SESHBDF TYPE STRING,
SESHEDF TYPE STRING,
SESDDT TYPE STRING,
SESCNCRD TYPE STRING,
SESCRERD TYPE STRING,
SESMETH TYPE STRING,
SESCONS TYPE STRING,
BUSI_BEGIN TYPE STRING,
BUSI_END TYPE STRING,
TECH_BEGIN TYPE STRING,
TECH_END TYPE STRING,
FLG_CANCEL_OBJ TYPE STRING,
FLG_CANCEL_VERS TYPE STRING,
CHG_TCODE TYPE STRING,
CHG_USR TYPE STRING,
TRI_METH_TYP TYPE STRING,
TRI_METH_TARGET TYPE STRING,
STATUS_VERSION TYPE STRING,
STATUS_WORK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TCACS_LOSSTODB_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_V_TCACS_LOSSTODB_STR-MANDT sy-vline 
WA_V_TCACS_LOSSTODB_STR-APPL sy-vline 
WA_V_TCACS_LOSSTODB_STR-OBJ_TYPE sy-vline 
WA_V_TCACS_LOSSTODB_STR-TOOL sy-vline 
WA_V_TCACS_LOSSTODB_STR-OBJ_ID sy-vline 
WA_V_TCACS_LOSSTODB_STR-VERSION sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESBPER sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESBPNO sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESRDAS sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESHORI sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESHBDF sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESHEDF sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESDDT sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESCNCRD sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESCRERD sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESMETH sy-vline 
WA_V_TCACS_LOSSTODB_STR-SESCONS sy-vline 
WA_V_TCACS_LOSSTODB_STR-BUSI_BEGIN sy-vline 
WA_V_TCACS_LOSSTODB_STR-BUSI_END sy-vline 
WA_V_TCACS_LOSSTODB_STR-TECH_BEGIN sy-vline 
WA_V_TCACS_LOSSTODB_STR-TECH_END sy-vline 
WA_V_TCACS_LOSSTODB_STR-FLG_CANCEL_OBJ sy-vline 
WA_V_TCACS_LOSSTODB_STR-FLG_CANCEL_VERS sy-vline 
WA_V_TCACS_LOSSTODB_STR-CHG_TCODE sy-vline 
WA_V_TCACS_LOSSTODB_STR-CHG_USR sy-vline 
WA_V_TCACS_LOSSTODB_STR-TRI_METH_TYP sy-vline 
WA_V_TCACS_LOSSTODB_STR-TRI_METH_TARGET sy-vline 
WA_V_TCACS_LOSSTODB_STR-STATUS_VERSION sy-vline 
WA_V_TCACS_LOSSTODB_STR-STATUS_WORK sy-vline      INTO ld_text SEPARATED BY SPACE.

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