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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MVA/AMAVICDEFOLANSWCLAI
*  INTO TABLE @DATA(IT_/MVA/AMAVICDEFOLANSWCLAI2).
*--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/AMAVICDEFOLANSWCLAI INDEX 1 INTO DATA(WA_/MVA/AMAVICDEFOLANSWCLAI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MVA/AMAVICDEFOLANSWCLAI>-RECORD_TYPE_CD = 1.
</MVA/AMAVICDEFOLANSWCLAI>-INSURER_ID = 1.
</MVA/AMAVICDEFOLANSWCLAI>-MESSAGE_DT = 1.
</MVA/AMAVICDEFOLANSWCLAI>-RECORD_ID = 1.
</MVA/AMAVICDEFOLANSWCLAI>-PRE_INSURER_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MVA/AMAVICDEFOLANSWCLAI-PRE_OFFICE_ID, sy-vline,
  WA_/MVA/AMAVICDEFOLANSWCLAI-PRE_CHECK_VL, sy-vline,
  WA_/MVA/AMAVICDEFOLANSWCLAI-REPORTING_DT1, sy-vline,
  WA_/MVA/AMAVICDEFOLANSWCLAI-CLAIM_DT1, sy-vline,
  WA_/MVA/AMAVICDEFOLANSWCLAI-EXCEMPTION_CD1, sy-vline,
  WA_/MVA/AMAVICDEFOLANSWCLAI-FILLER91, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MVA/AMAVICDEFOLANSWCLAI 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/AMAVICDEFOLANSWCLAI 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/AMAVICDEFOLANSWCLAI INTO WA_/MVA/AMAVICDEFOLANSWCLAI.


*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 RECID, internal->external for field RECORD_ID
CALL FUNCTION 'CONVERSION_EXIT_RECID_OUTPUT'
  EXPORTING
    input =                      WA_/MVA/AMAVICDEFOLANSWCLAI-RECORD_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MVA/AMAVICDEFOLANSWCLAI-RECORD_ID.
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/AMAVICDEFOLANSWCLAI_STR, 
RECORD_TYPE_CD TYPE STRING,
INSURER_ID TYPE STRING,
MESSAGE_DT TYPE STRING,
RECORD_ID TYPE STRING,
PRE_INSURER_ID TYPE STRING,
PRE_OFFICE_ID TYPE STRING,
PRE_CHECK_VL TYPE STRING,
REPORTING_DT1 TYPE STRING,
CLAIM_DT1 TYPE STRING,
EXCEMPTION_CD1 TYPE STRING,
FILLER91 TYPE STRING,
REPORTING_DT2 TYPE STRING,
CLAIM_DT2 TYPE STRING,
EXCEMPTION_CD2 TYPE STRING,
FILLER92 TYPE STRING,
REPORTING_DT3 TYPE STRING,
CLAIM_DT3 TYPE STRING,
EXCEMPTION_CD3 TYPE STRING,
FILLER93 TYPE STRING,
REPORTING_DT4 TYPE STRING,
CLAIM_DT4 TYPE STRING,
EXCEMPTION_CD4 TYPE STRING,
FILLER94 TYPE STRING,
REPORTING_DT5 TYPE STRING,
CLAIM_DT5 TYPE STRING,
EXCEMPTION_CD5 TYPE STRING,
FILLER95 TYPE STRING,
REPORTING_DT6 TYPE STRING,
CLAIM_DT6 TYPE STRING,
EXCEMPTION_CD6 TYPE STRING,
FILLER96 TYPE STRING,
REPORTING_DT7 TYPE STRING,
CLAIM_DT7 TYPE STRING,
EXCEMPTION_CD7 TYPE STRING,
FILLER97 TYPE STRING,
REPORTING_DT8 TYPE STRING,
CLAIM_DT8 TYPE STRING,
EXCEMPTION_CD8 TYPE STRING,
FILLER98 TYPE STRING,
REPORTING_DT9 TYPE STRING,
CLAIM_DT9 TYPE STRING,
EXCEMPTION_CD9 TYPE STRING,
FILLER99 TYPE STRING,
REPORTING_DT10 TYPE STRING,
CLAIM_DT10 TYPE STRING,
EXCEMPTION_CD10 TYPE STRING,
FILLER910 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MVA/AMAVICDEFOLANSWCLAI_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/AMAVICDEFOLANSWCLAI_STR-RECORD_TYPE_CD sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-INSURER_ID sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-MESSAGE_DT sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-RECORD_ID sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-PRE_INSURER_ID sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-PRE_OFFICE_ID sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-PRE_CHECK_VL sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-REPORTING_DT1 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-CLAIM_DT1 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-EXCEMPTION_CD1 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-FILLER91 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-REPORTING_DT2 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-CLAIM_DT2 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-EXCEMPTION_CD2 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-FILLER92 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-REPORTING_DT3 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-CLAIM_DT3 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-EXCEMPTION_CD3 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-FILLER93 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-REPORTING_DT4 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-CLAIM_DT4 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-EXCEMPTION_CD4 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-FILLER94 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-REPORTING_DT5 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-CLAIM_DT5 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-EXCEMPTION_CD5 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-FILLER95 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-REPORTING_DT6 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-CLAIM_DT6 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-EXCEMPTION_CD6 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-FILLER96 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-REPORTING_DT7 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-CLAIM_DT7 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-EXCEMPTION_CD7 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-FILLER97 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-REPORTING_DT8 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-CLAIM_DT8 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-EXCEMPTION_CD8 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-FILLER98 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-REPORTING_DT9 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-CLAIM_DT9 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-EXCEMPTION_CD9 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-FILLER99 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-REPORTING_DT10 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-CLAIM_DT10 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-EXCEMPTION_CD10 sy-vline 
WA_/MVA/AMAVICDEFOLANSWCLAI_STR-FILLER910 sy-vline      INTO ld_text SEPARATED BY SPACE.

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