ABAP Select data from SAP table MCVTTSADD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MCVTTSADD
*  INTO TABLE @DATA(IT_MCVTTSADD2).
*--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_MCVTTSADD INDEX 1 INTO DATA(WA_MCVTTSADD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MCVTTSADD>-TKNOTA = 1.
<MCVTTSADD>-TORT2A = 1.
<MCVTTSADD>-PSTLZA = 1.
<MCVTTSADD>-LAND1A = 1.
<MCVTTSADD>-LZONEA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MCVTTSADD-REGIOA, sy-vline,
  WA_MCVTTSADD-TKNOTZ, sy-vline,
  WA_MCVTTSADD-TORT2Z, sy-vline,
  WA_MCVTTSADD-PSTLZZ, sy-vline,
  WA_MCVTTSADD-LAND1Z, sy-vline,
  WA_MCVTTSADD-LZONEZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MCVTTSADD 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_MCVTTSADD 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_MCVTTSADD INTO WA_MCVTTSADD.


*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 TDURM, internal->external for field DURTP
CALL FUNCTION 'CONVERSION_EXIT_TDURM_OUTPUT'
  EXPORTING
    input =                      WA_MCVTTSADD-DURTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCVTTSADD-DURTP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TDURM, internal->external for field DURTA
CALL FUNCTION 'CONVERSION_EXIT_TDURM_OUTPUT'
  EXPORTING
    input =                      WA_MCVTTSADD-DURTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCVTTSADD-DURTA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TDURM, internal->external for field LATET
CALL FUNCTION 'CONVERSION_EXIT_TDURM_OUTPUT'
  EXPORTING
    input =                      WA_MCVTTSADD-LATET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCVTTSADD-LATET.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TDURM, internal->external for field LATES
CALL FUNCTION 'CONVERSION_EXIT_TDURM_OUTPUT'
  EXPORTING
    input =                      WA_MCVTTSADD-LATES
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCVTTSADD-LATES.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TDURM, internal->external for field LATEE
CALL FUNCTION 'CONVERSION_EXIT_TDURM_OUTPUT'
  EXPORTING
    input =                      WA_MCVTTSADD-LATEE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCVTTSADD-LATEE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TDURM, internal->external for field DURGES
CALL FUNCTION 'CONVERSION_EXIT_TDURM_OUTPUT'
  EXPORTING
    input =                      WA_MCVTTSADD-DURGES
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCVTTSADD-DURGES.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TDURM, internal->external for field DURFAH
CALL FUNCTION 'CONVERSION_EXIT_TDURM_OUTPUT'
  EXPORTING
    input =                      WA_MCVTTSADD-DURFAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCVTTSADD-DURFAH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TDURM, internal->external for field DURFAHP
CALL FUNCTION 'CONVERSION_EXIT_TDURM_OUTPUT'
  EXPORTING
    input =                      WA_MCVTTSADD-DURFAHP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCVTTSADD-DURFAHP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TDURM, internal->external for field DURGESP
CALL FUNCTION 'CONVERSION_EXIT_TDURM_OUTPUT'
  EXPORTING
    input =                      WA_MCVTTSADD-DURGESP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MCVTTSADD-DURGESP.
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_MCVTTSADD_STR, 
TKNOTA TYPE STRING,
TORT2A TYPE STRING,
PSTLZA TYPE STRING,
LAND1A TYPE STRING,
LZONEA TYPE STRING,
REGIOA TYPE STRING,
TKNOTZ TYPE STRING,
TORT2Z TYPE STRING,
PSTLZZ TYPE STRING,
LAND1Z TYPE STRING,
LZONEZ TYPE STRING,
REGIOZ TYPE STRING,
DLNAMT TYPE STRING,
BEZKOMPRA TYPE STRING,
BEZKOMPRZ TYPE STRING,
DURTP TYPE STRING,
DURTA TYPE STRING,
LATET TYPE STRING,
LATES TYPE STRING,
LATEE TYPE STRING,
DURGES TYPE STRING,
DURFAH TYPE STRING,
DURFAHP TYPE STRING,
DURGESP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MCVTTSADD_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_MCVTTSADD_STR-TKNOTA sy-vline 
WA_MCVTTSADD_STR-TORT2A sy-vline 
WA_MCVTTSADD_STR-PSTLZA sy-vline 
WA_MCVTTSADD_STR-LAND1A sy-vline 
WA_MCVTTSADD_STR-LZONEA sy-vline 
WA_MCVTTSADD_STR-REGIOA sy-vline 
WA_MCVTTSADD_STR-TKNOTZ sy-vline 
WA_MCVTTSADD_STR-TORT2Z sy-vline 
WA_MCVTTSADD_STR-PSTLZZ sy-vline 
WA_MCVTTSADD_STR-LAND1Z sy-vline 
WA_MCVTTSADD_STR-LZONEZ sy-vline 
WA_MCVTTSADD_STR-REGIOZ sy-vline 
WA_MCVTTSADD_STR-DLNAMT sy-vline 
WA_MCVTTSADD_STR-BEZKOMPRA sy-vline 
WA_MCVTTSADD_STR-BEZKOMPRZ sy-vline 
WA_MCVTTSADD_STR-DURTP sy-vline 
WA_MCVTTSADD_STR-DURTA sy-vline 
WA_MCVTTSADD_STR-LATET sy-vline 
WA_MCVTTSADD_STR-LATES sy-vline 
WA_MCVTTSADD_STR-LATEE sy-vline 
WA_MCVTTSADD_STR-DURGES sy-vline 
WA_MCVTTSADD_STR-DURFAH sy-vline 
WA_MCVTTSADD_STR-DURFAHP sy-vline 
WA_MCVTTSADD_STR-DURGESP sy-vline      INTO ld_text SEPARATED BY SPACE.

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