ABAP Select data from SAP table /MVA/AMCVRSD_LISTE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MVA/AMCVRSD_LISTE
*  INTO TABLE @DATA(IT_/MVA/AMCVRSD_LISTE2).
*--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_/MVA/AMCVRSD_LISTE INDEX 1 INTO DATA(WA_/MVA/AMCVRSD_LISTE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MVA/AMCVRSD_LISTE>-CLIENT = 1.
</MVA/AMCVRSD_LISTE>-MSG_ID = 1.
</MVA/AMCVRSD_LISTE>-ABANDON_DT = 1.
</MVA/AMCVRSD_LISTE>-CREATION_DT = 1.
</MVA/AMCVRSD_LISTE>-HVSD_CD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MVA/AMCVRSD_LISTE-IC_ID, sy-vline,
  WA_/MVA/AMCVRSD_LISTE-IC_KND_CD, sy-vline,
  WA_/MVA/AMCVRSD_LISTE-IC_STATUS_CD, sy-vline,
  WA_/MVA/AMCVRSD_LISTE-INV_LIC_CD, sy-vline,
  WA_/MVA/AMCVRSD_LISTE-RECALL_TO_DT, sy-vline,
  WA_/MVA/AMCVRSD_LISTE-REF_REAS_CD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MVA/AMCVRSD_LISTE 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_/MVA/AMCVRSD_LISTE 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_/MVA/AMCVRSD_LISTE INTO WA_/MVA/AMCVRSD_LISTE.


*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 AGENT_IDPH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMCVRSD_LISTE-AGENT_IDPH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMCVRSD_LISTE-AGENT_IDPH.
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_/MVA/AMCVRSD_LISTE_STR, 
CLIENT TYPE STRING,
MSG_ID TYPE STRING,
ABANDON_DT TYPE STRING,
CREATION_DT TYPE STRING,
HVSD_CD TYPE STRING,
IC_ID TYPE STRING,
IC_KND_CD TYPE STRING,
IC_STATUS_CD TYPE STRING,
INV_LIC_CD TYPE STRING,
RECALL_TO_DT TYPE STRING,
REF_REAS_CD TYPE STRING,
I_NOTIF_TYP_CD TYPE STRING,
KNOWLEDGE_DT TYPE STRING,
RECH_INSURER_ID TYPE STRING,
RECH_INSBEG_DT TYPE STRING,
NEW_INS_FR_DT TYPE STRING,
FROM_REG_DT_FG TYPE STRING,
ALT_SHIPPING_DT TYPE STRING,
ALT_SHIPPING_TM TYPE STRING,
CREATION_TM TYPE STRING,
/MVA/CHANGE_DT TYPE STRING,
/MVA/CHANGE_TM TYPE STRING,
REFREA_INSEND_CD TYPE STRING,
VIN_CORR_FG TYPE STRING,
AVRESPRA_CORR_FG TYPE STRING,
AVOIDVIN_CORR_FG TYPE STRING,
CVR_ENTR_FG TYPE STRING,
GIFAGENT_ID TYPE STRING,
ICAGENT_ID TYPE STRING,
ICUSER_ID TYPE STRING,
ERRORAT_TT TYPE STRING,
FURTHER_DS_EXIST TYPE STRING,
INS_KIND_CD TYPE STRING,
INSURER_ID TYPE STRING,
OFFICE_ID TYPE STRING,
AGENCY_ID TYPE STRING,
INSBEG_DT TYPE STRING,
INS_NUM_ID TYPE STRING,
INT_ANNOT_TT TYPE STRING,
NAME_TTPH TYPE STRING,
NAMECP_TTPH TYPE STRING,
FNAME_TTPH TYPE STRING,
NAMENREL_IDPH TYPE STRING,
BIRTH_DTPH TYPE STRING,
GENDER_CDPH TYPE STRING,
DEGREE_TTPH TYPE STRING,
ORDERNAME_TTPH TYPE STRING,
PSEUDONYM_TTPH TYPE STRING,
NAME_TTPHL TYPE STRING,
ASSOCNAME_TTPH TYPE STRING,
AGENT_IDPH TYPE STRING,
POST_CDPH TYPE STRING,
CITY_TTPH TYPE STRING,
COUNTRY_IDPH TYPE STRING,
STR_TTPH TYPE STRING,
STRNO_TTPH TYPE STRING,
STRNOSP_TTPH TYPE STRING,
COMKEY_VLPH TYPE STRING,
STRKEY_VLPH TYPE STRING,
BUS_PART_CDPH TYPE STRING,
FURTHER_DS_EXISTT TYPE STRING,
HVSDT_CD TYPE STRING,
INV_LICT_CD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MVA/AMCVRSD_LISTE_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_/MVA/AMCVRSD_LISTE_STR-CLIENT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-MSG_ID sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-ABANDON_DT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-CREATION_DT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-HVSD_CD sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-IC_ID sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-IC_KND_CD sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-IC_STATUS_CD sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-INV_LIC_CD sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-RECALL_TO_DT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-REF_REAS_CD sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-I_NOTIF_TYP_CD sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-KNOWLEDGE_DT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-RECH_INSURER_ID sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-RECH_INSBEG_DT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-NEW_INS_FR_DT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-FROM_REG_DT_FG sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-ALT_SHIPPING_DT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-ALT_SHIPPING_TM sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-CREATION_TM sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-/MVA/CHANGE_DT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-/MVA/CHANGE_TM sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-REFREA_INSEND_CD sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-VIN_CORR_FG sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-AVRESPRA_CORR_FG sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-AVOIDVIN_CORR_FG sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-CVR_ENTR_FG sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-GIFAGENT_ID sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-ICAGENT_ID sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-ICUSER_ID sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-ERRORAT_TT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-FURTHER_DS_EXIST sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-INS_KIND_CD sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-INSURER_ID sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-OFFICE_ID sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-AGENCY_ID sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-INSBEG_DT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-INS_NUM_ID sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-INT_ANNOT_TT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-NAME_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-NAMECP_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-FNAME_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-NAMENREL_IDPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-BIRTH_DTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-GENDER_CDPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-DEGREE_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-ORDERNAME_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-PSEUDONYM_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-NAME_TTPHL sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-ASSOCNAME_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-AGENT_IDPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-POST_CDPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-CITY_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-COUNTRY_IDPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-STR_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-STRNO_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-STRNOSP_TTPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-COMKEY_VLPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-STRKEY_VLPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-BUS_PART_CDPH sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-FURTHER_DS_EXISTT sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-HVSDT_CD sy-vline 
WA_/MVA/AMCVRSD_LISTE_STR-INV_LICT_CD sy-vline      INTO ld_text SEPARATED BY SPACE.

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