ABAP Select data from SAP table /SCMTMS/D_VSSXAT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCMTMS/D_VSSXAT 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 /SCMTMS/D_VSSXAT. 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 /SCMTMS/D_VSSXAT 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_/SCMTMS/D_VSSXAT TYPE STANDARD TABLE OF /SCMTMS/D_VSSXAT,
      WA_/SCMTMS/D_VSSXAT TYPE /SCMTMS/D_VSSXAT,
      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: </SCMTMS/D_VSSXAT> TYPE /SCMTMS/D_VSSXAT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCMTMS/D_VSSXAT
  INTO TABLE IT_/SCMTMS/D_VSSXAT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCMTMS/D_VSSXAT
*  INTO TABLE @DATA(IT_/SCMTMS/D_VSSXAT2).
*--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_/SCMTMS/D_VSSXAT INDEX 1 INTO DATA(WA_/SCMTMS/D_VSSXAT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCMTMS/D_VSSXAT ASSIGNING </SCMTMS/D_VSSXAT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCMTMS/D_VSSXAT>-MANDT = 1.
</SCMTMS/D_VSSXAT>-DB_KEY = 1.
</SCMTMS/D_VSSXAT>-PARENT_KEY = 1.
</SCMTMS/D_VSSXAT>-ACT_ID = 1.
</SCMTMS/D_VSSXAT>-PARENT_ACT_ID = 1.

ENDLOOP.

LOOP AT IT_/SCMTMS/D_VSSXAT INTO WA_/SCMTMS/D_VSSXAT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCMTMS/D_VSSXAT-ACT_CAT, sy-vline,
  WA_/SCMTMS/D_VSSXAT-NET_DUR, sy-vline,
  WA_/SCMTMS/D_VSSXAT-TOR_ID, sy-vline,
  WA_/SCMTMS/D_VSSXAT-TOR_CAT, sy-vline,
  WA_/SCMTMS/D_VSSXAT-MOVER_TOR_GUID, sy-vline,
  WA_/SCMTMS/D_VSSXAT-RES_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCMTMS/D_VSSXAT 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_/SCMTMS/D_VSSXAT 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_/SCMTMS/D_VSSXAT INTO WA_/SCMTMS/D_VSSXAT.


*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 ALPHA, internal->external for field TOR_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-TOR_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-TOR_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXP01, internal->external for field MOVER_TOR_GUID
CALL FUNCTION 'CONVERSION_EXIT_EXP01_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-MOVER_TOR_GUID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-MOVER_TOR_GUID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field START_FROM
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-START_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-START_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field START_TO
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-START_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-START_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field END_FROM
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-END_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-END_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field END_TO
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-END_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-END_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field DESIRED_FROM
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-DESIRED_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-DESIRED_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field DESIRED_TO
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-DESIRED_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-DESIRED_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXP08, internal->external for field DESIRED_EARLY_COST
CALL FUNCTION 'CONVERSION_EXIT_EXP08_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-DESIRED_EARLY_COST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-DESIRED_EARLY_COST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXP08, internal->external for field DESIRED_LATE_COST
CALL FUNCTION 'CONVERSION_EXIT_EXP08_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-DESIRED_LATE_COST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-DESIRED_LATE_COST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXP01, internal->external for field TRAILER_TOR_GUID
CALL FUNCTION 'CONVERSION_EXIT_EXP01_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-TRAILER_TOR_GUID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-TRAILER_TOR_GUID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXP01, internal->external for field DRIVER_GUID
CALL FUNCTION 'CONVERSION_EXIT_EXP01_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-DRIVER_GUID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-DRIVER_GUID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXP01, internal->external for field TOR_GUID
CALL FUNCTION 'CONVERSION_EXIT_EXP01_OUTPUT'
  EXPORTING
    input =                      WA_/SCMTMS/D_VSSXAT-TOR_GUID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMTMS/D_VSSXAT-TOR_GUID.
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_/SCMTMS/D_VSSXAT_STR, 
MANDT TYPE STRING,
DB_KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ACT_ID TYPE STRING,
PARENT_ACT_ID TYPE STRING,
ACT_CAT TYPE STRING,
NET_DUR TYPE STRING,
TOR_ID TYPE STRING,
TOR_CAT TYPE STRING,
MOVER_TOR_GUID TYPE STRING,
RES_ID TYPE STRING,
LOCFROM TYPE STRING,
LOCTO TYPE STRING,
START_FROM TYPE STRING,
START_TO TYPE STRING,
END_FROM TYPE STRING,
END_TO TYPE STRING,
DESIRED_FROM TYPE STRING,
DESIRED_TO TYPE STRING,
DESIRED_EARLY_COST TYPE STRING,
DESIRED_LATE_COST TYPE STRING,
DESIRED_INTERVAL_REF TYPE STRING,
BRK_CAL_ID TYPE STRING,
BRK_CAL2_ID TYPE STRING,
CAPA_CAL_ID TYPE STRING,
CAPA_CONSUMPTION TYPE STRING,
MAX_BREAK TYPE STRING,
TRAILER_TOR_GUID TYPE STRING,
DRIVER_GUID TYPE STRING,
TOR_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCMTMS/D_VSSXAT_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_/SCMTMS/D_VSSXAT_STR-MANDT sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-DB_KEY sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-PARENT_KEY sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-ACT_ID sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-PARENT_ACT_ID sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-ACT_CAT sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-NET_DUR sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-TOR_ID sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-TOR_CAT sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-MOVER_TOR_GUID sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-RES_ID sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-LOCFROM sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-LOCTO sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-START_FROM sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-START_TO sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-END_FROM sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-END_TO sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-DESIRED_FROM sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-DESIRED_TO sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-DESIRED_EARLY_COST sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-DESIRED_LATE_COST sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-DESIRED_INTERVAL_REF sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-BRK_CAL_ID sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-BRK_CAL2_ID sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-CAPA_CAL_ID sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-CAPA_CONSUMPTION sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-MAX_BREAK sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-TRAILER_TOR_GUID sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-DRIVER_GUID sy-vline 
WA_/SCMTMS/D_VSSXAT_STR-TOR_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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