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

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MVA/AMARSD_MESSAGE
*  INTO TABLE @DATA(IT_/MVA/AMARSD_MESSAGE2).
*--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/AMARSD_MESSAGE INDEX 1 INTO DATA(WA_/MVA/AMARSD_MESSAGE2).


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

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

ENDLOOP.

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

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


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/MVA/AMARSD_MESSAGE_STR, 
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,END OF T_EKKO_STR.
DATA: WA_/MVA/AMARSD_MESSAGE_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/AMARSD_MESSAGE_STR-ABANDON_DT sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-CREATION_DT sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-HVSD_CD sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-IC_ID sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-IC_KND_CD sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-IC_STATUS_CD sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-INV_LIC_CD sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-RECALL_TO_DT sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-REF_REAS_CD sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-I_NOTIF_TYP_CD sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-KNOWLEDGE_DT sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-RECH_INSURER_ID sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-RECH_INSBEG_DT sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-NEW_INS_FR_DT sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-FROM_REG_DT_FG sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-ALT_SHIPPING_DT sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-ALT_SHIPPING_TM sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-CREATION_TM sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-/MVA/CHANGE_DT sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-/MVA/CHANGE_TM sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-REFREA_INSEND_CD sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-VIN_CORR_FG sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-AVRESPRA_CORR_FG sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-AVOIDVIN_CORR_FG sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-CVR_ENTR_FG sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-GIFAGENT_ID sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-ICAGENT_ID sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-ICUSER_ID sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-ERRORAT_TT sy-vline 
WA_/MVA/AMARSD_MESSAGE_STR-FURTHER_DS_EXIST sy-vline      INTO ld_text SEPARATED BY SPACE.

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