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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MVA/AMARSD_ADM
*  INTO TABLE @DATA(IT_/MVA/AMARSD_ADM2).
*--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_ADM INDEX 1 INTO DATA(WA_/MVA/AMARSD_ADM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MVA/AMARSD_ADM>-INSOBJ_ID = 1.
</MVA/AMARSD_ADM>-POLHLD_ID = 1.
</MVA/AMARSD_ADM>-VEHKEEPER_ID = 1.
</MVA/AMARSD_ADM>-APPLNR_TT = 1.
</MVA/AMARSD_ADM>-INT_STATUS_CD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MVA/AMARSD_ADM-PROCTYPE_CD, sy-vline,
  WA_/MVA/AMARSD_ADM-END_DT, sy-vline,
  WA_/MVA/AMARSD_ADM-SYNCHRON_FG, sy-vline,
  WA_/MVA/AMARSD_ADM-SHIPPING_DT, sy-vline,
  WA_/MVA/AMARSD_ADM-MSG_CD, sy-vline,
  WA_/MVA/AMARSD_ADM-INSEND_DT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MVA/AMARSD_ADM 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_ADM 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_ADM INTO WA_/MVA/AMARSD_ADM.


*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 INSOBJ_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMARSD_ADM-INSOBJ_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMARSD_ADM-INSOBJ_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field POLHLD_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMARSD_ADM-POLHLD_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMARSD_ADM-POLHLD_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VEHKEEPER_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMARSD_ADM-VEHKEEPER_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMARSD_ADM-VEHKEEPER_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field APPLNR_TT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMARSD_ADM-APPLNR_TT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMARSD_ADM-APPLNR_TT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROVAPPLNR_TT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMARSD_ADM-PROVAPPLNR_TT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMARSD_ADM-PROVAPPLNR_TT.
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/AMARSD_ADM_STR, 
INSOBJ_ID TYPE STRING,
POLHLD_ID TYPE STRING,
VEHKEEPER_ID TYPE STRING,
APPLNR_TT TYPE STRING,
INT_STATUS_CD TYPE STRING,
PROCTYPE_CD TYPE STRING,
END_DT TYPE STRING,
SYNCHRON_FG TYPE STRING,
SHIPPING_DT TYPE STRING,
MSG_CD TYPE STRING,
INSEND_DT TYPE STRING,
WI_FG TYPE STRING,
INT_CNL_CD TYPE STRING,
APPR_LOCK_FG TYPE STRING,
POLICYNR_TT TYPE STRING,
MAN_FG TYPE STRING,
PROVAPPLNR_TT TYPE STRING,
TOSEND_FG TYPE STRING,
/MVA/LICENCE_TT TYPE STRING,
REPORT_FG TYPE STRING,
REPORT_DT TYPE STRING,
SHORTLIC_DT TYPE STRING,
INT_STATUS_DT TYPE STRING,
/MVA/INT_CNL_TT TYPE STRING,
MODE_DATE TYPE STRING,
MIGR_FG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MVA/AMARSD_ADM_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_ADM_STR-INSOBJ_ID sy-vline 
WA_/MVA/AMARSD_ADM_STR-POLHLD_ID sy-vline 
WA_/MVA/AMARSD_ADM_STR-VEHKEEPER_ID sy-vline 
WA_/MVA/AMARSD_ADM_STR-APPLNR_TT sy-vline 
WA_/MVA/AMARSD_ADM_STR-INT_STATUS_CD sy-vline 
WA_/MVA/AMARSD_ADM_STR-PROCTYPE_CD sy-vline 
WA_/MVA/AMARSD_ADM_STR-END_DT sy-vline 
WA_/MVA/AMARSD_ADM_STR-SYNCHRON_FG sy-vline 
WA_/MVA/AMARSD_ADM_STR-SHIPPING_DT sy-vline 
WA_/MVA/AMARSD_ADM_STR-MSG_CD sy-vline 
WA_/MVA/AMARSD_ADM_STR-INSEND_DT sy-vline 
WA_/MVA/AMARSD_ADM_STR-WI_FG sy-vline 
WA_/MVA/AMARSD_ADM_STR-INT_CNL_CD sy-vline 
WA_/MVA/AMARSD_ADM_STR-APPR_LOCK_FG sy-vline 
WA_/MVA/AMARSD_ADM_STR-POLICYNR_TT sy-vline 
WA_/MVA/AMARSD_ADM_STR-MAN_FG sy-vline 
WA_/MVA/AMARSD_ADM_STR-PROVAPPLNR_TT sy-vline 
WA_/MVA/AMARSD_ADM_STR-TOSEND_FG sy-vline 
WA_/MVA/AMARSD_ADM_STR-/MVA/LICENCE_TT sy-vline 
WA_/MVA/AMARSD_ADM_STR-REPORT_FG sy-vline 
WA_/MVA/AMARSD_ADM_STR-REPORT_DT sy-vline 
WA_/MVA/AMARSD_ADM_STR-SHORTLIC_DT sy-vline 
WA_/MVA/AMARSD_ADM_STR-INT_STATUS_DT sy-vline 
WA_/MVA/AMARSD_ADM_STR-/MVA/INT_CNL_TT sy-vline 
WA_/MVA/AMARSD_ADM_STR-MODE_DATE sy-vline 
WA_/MVA/AMARSD_ADM_STR-MIGR_FG sy-vline      INTO ld_text SEPARATED BY SPACE.

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