ABAP Select data from SAP table AVASMTRANSACT2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP AVASMTRANSACT2 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 AVASMTRANSACT2. 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 AVASMTRANSACT2 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_AVASMTRANSACT2 TYPE STANDARD TABLE OF AVASMTRANSACT2,
      WA_AVASMTRANSACT2 TYPE AVASMTRANSACT2,
      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: <AVASMTRANSACT2> TYPE AVASMTRANSACT2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_AVASMTRANSACT2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM AVASMTRANSACT2
  INTO TABLE IT_AVASMTRANSACT2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AVASMTRANSACT2
*  INTO TABLE @DATA(IT_AVASMTRANSACT22).
*--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_AVASMTRANSACT2 INDEX 1 INTO DATA(WA_AVASMTRANSACT22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_AVASMTRANSACT2 ASSIGNING <AVASMTRANSACT2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AVASMTRANSACT2>-MANDT = 1.
<AVASMTRANSACT2>-PURCHASEORDER = 1.
<AVASMTRANSACT2>-PURCHASEORDERITEM = 1.
<AVASMTRANSACT2>-VALUEADDEDSERVICETYPE = 1.
<AVASMTRANSACT2>-VALUEADDEDSUBSERVICETYPE = 1.

ENDLOOP.

LOOP AT IT_AVASMTRANSACT2 INTO WA_AVASMTRANSACT2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AVASMTRANSACT2-VALUEADDEDSERVICEPRODUCT, sy-vline,
  WA_AVASMTRANSACT2-VALADDEDSRVCHASTOBEORDERED, sy-vline,
  WA_AVASMTRANSACT2-VALADDEDSRVCINCREMENT, sy-vline,
  WA_AVASMTRANSACT2-VALUEADDEDSERVICECHARGECODE, sy-vline,
  WA_AVASMTRANSACT2-VALADDEDSRVCISCREATEDMANUALLY, sy-vline,
  WA_AVASMTRANSACT2-VALUEADDEDSERVICEDELETIONCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AVASMTRANSACT2 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_AVASMTRANSACT2 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_AVASMTRANSACT2 INTO WA_AVASMTRANSACT2.


*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 PURCHASEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AVASMTRANSACT2-PURCHASEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVASMTRANSACT2-PURCHASEORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field VALUEADDEDSERVICEPRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_AVASMTRANSACT2-VALUEADDEDSERVICEPRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AVASMTRANSACT2-VALUEADDEDSERVICEPRODUCT.
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_AVASMTRANSACT2_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
VALUEADDEDSERVICETYPE TYPE STRING,
VALUEADDEDSUBSERVICETYPE TYPE STRING,
VALUEADDEDSERVICEPRODUCT TYPE STRING,
VALADDEDSRVCHASTOBEORDERED TYPE STRING,
VALADDEDSRVCINCREMENT TYPE STRING,
VALUEADDEDSERVICECHARGECODE TYPE STRING,
VALADDEDSRVCISCREATEDMANUALLY TYPE STRING,
VALUEADDEDSERVICEDELETIONCODE TYPE STRING,
VALADDEDSRVCITEMNUMBERINMM TYPE STRING,
VALUEADDEDSERVICETEXT1 TYPE STRING,
VALUEADDEDSERVICETEXT2 TYPE STRING,
VALUEADDEDSERVICETEXT3 TYPE STRING,
VALUEADDEDSERVICELONGTEXT TYPE STRING,
VALADDEDSRVCTRANSACTIONNUMBER TYPE STRING,
VALADDEDSRVCITEMGROUP TYPE STRING,
VALADDEDSRVCITEMNUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AVASMTRANSACT2_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_AVASMTRANSACT2_STR-MANDT sy-vline 
WA_AVASMTRANSACT2_STR-PURCHASEORDER sy-vline 
WA_AVASMTRANSACT2_STR-PURCHASEORDERITEM sy-vline 
WA_AVASMTRANSACT2_STR-VALUEADDEDSERVICETYPE sy-vline 
WA_AVASMTRANSACT2_STR-VALUEADDEDSUBSERVICETYPE sy-vline 
WA_AVASMTRANSACT2_STR-VALUEADDEDSERVICEPRODUCT sy-vline 
WA_AVASMTRANSACT2_STR-VALADDEDSRVCHASTOBEORDERED sy-vline 
WA_AVASMTRANSACT2_STR-VALADDEDSRVCINCREMENT sy-vline 
WA_AVASMTRANSACT2_STR-VALUEADDEDSERVICECHARGECODE sy-vline 
WA_AVASMTRANSACT2_STR-VALADDEDSRVCISCREATEDMANUALLY sy-vline 
WA_AVASMTRANSACT2_STR-VALUEADDEDSERVICEDELETIONCODE sy-vline 
WA_AVASMTRANSACT2_STR-VALADDEDSRVCITEMNUMBERINMM sy-vline 
WA_AVASMTRANSACT2_STR-VALUEADDEDSERVICETEXT1 sy-vline 
WA_AVASMTRANSACT2_STR-VALUEADDEDSERVICETEXT2 sy-vline 
WA_AVASMTRANSACT2_STR-VALUEADDEDSERVICETEXT3 sy-vline 
WA_AVASMTRANSACT2_STR-VALUEADDEDSERVICELONGTEXT sy-vline 
WA_AVASMTRANSACT2_STR-VALADDEDSRVCTRANSACTIONNUMBER sy-vline 
WA_AVASMTRANSACT2_STR-VALADDEDSRVCITEMGROUP sy-vline 
WA_AVASMTRANSACT2_STR-VALADDEDSRVCITEMNUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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