ABAP Select data from SAP table IENVAMNSFORACT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IENVAMNSFORACT
*  INTO TABLE @DATA(IT_IENVAMNSFORACT2).
*--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_IENVAMNSFORACT INDEX 1 INTO DATA(WA_IENVAMNSFORACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IENVAMNSFORACT>-MANDT = 1.
<IENVAMNSFORACT>-EHSAMOUNTUUID = 1.
<IENVAMNSFORACT>-EHSAMOUNTUTCDATETIME = 1.
<IENVAMNSFORACT>-UNITOFMEASURENAME = 1.
<IENVAMNSFORACT>-UNITOFMEASURE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IENVAMNSFORACT-EHSAMOUNTSOURCETYPE, sy-vline,
  WA_IENVAMNSFORACT-EHSAMOUNTSOURCETYPENAME, sy-vline,
  WA_IENVAMNSFORACT-EHSSUBJECTTYPE, sy-vline,
  WA_IENVAMNSFORACT-EHSSUBJECTUUID, sy-vline,
  WA_IENVAMNSFORACT-EHSAMOUNTVALUE, sy-vline,
  WA_IENVAMNSFORACT-EHSLOCATIONUUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IENVAMNSFORACT 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_IENVAMNSFORACT 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_IENVAMNSFORACT INTO WA_IENVAMNSFORACT.


*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 EHUNI, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_EHUNI_OUTPUT'
  EXPORTING
    input =                      WA_IENVAMNSFORACT-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IENVAMNSFORACT-UNITOFMEASURE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DFVAL, internal->external for field EHSAMOUNTSOURCETYPE
CALL FUNCTION 'CONVERSION_EXIT_DFVAL_OUTPUT'
  EXPORTING
    input =                      WA_IENVAMNSFORACT-EHSAMOUNTSOURCETYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IENVAMNSFORACT-EHSAMOUNTSOURCETYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CHFLT, internal->external for field EHSAMOUNTVALUE
CALL FUNCTION 'CONVERSION_EXIT_CHFLT_OUTPUT'
  EXPORTING
    input =                      WA_IENVAMNSFORACT-EHSAMOUNTVALUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IENVAMNSFORACT-EHSAMOUNTVALUE.
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_IENVAMNSFORACT_STR, 
MANDT TYPE STRING,
EHSAMOUNTUUID TYPE STRING,
EHSAMOUNTUTCDATETIME TYPE STRING,
UNITOFMEASURENAME TYPE STRING,
UNITOFMEASURE TYPE STRING,
EHSAMOUNTSOURCETYPE TYPE STRING,
EHSAMOUNTSOURCETYPENAME TYPE STRING,
EHSSUBJECTTYPE TYPE STRING,
EHSSUBJECTUUID TYPE STRING,
EHSAMOUNTVALUE TYPE STRING,
EHSLOCATIONUUID TYPE STRING,
DATAUSAGEPERIODICITY TYPE STRING,
EHSLOCATIONNAME TYPE STRING,
COUNTRY TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
BUSINESSAREA TYPE STRING,
REGION TYPE STRING,
EHSLOCATIONTYPE TYPE STRING,
DATAPERIODNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IENVAMNSFORACT_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_IENVAMNSFORACT_STR-MANDT sy-vline 
WA_IENVAMNSFORACT_STR-EHSAMOUNTUUID sy-vline 
WA_IENVAMNSFORACT_STR-EHSAMOUNTUTCDATETIME sy-vline 
WA_IENVAMNSFORACT_STR-UNITOFMEASURENAME sy-vline 
WA_IENVAMNSFORACT_STR-UNITOFMEASURE sy-vline 
WA_IENVAMNSFORACT_STR-EHSAMOUNTSOURCETYPE sy-vline 
WA_IENVAMNSFORACT_STR-EHSAMOUNTSOURCETYPENAME sy-vline 
WA_IENVAMNSFORACT_STR-EHSSUBJECTTYPE sy-vline 
WA_IENVAMNSFORACT_STR-EHSSUBJECTUUID sy-vline 
WA_IENVAMNSFORACT_STR-EHSAMOUNTVALUE sy-vline 
WA_IENVAMNSFORACT_STR-EHSLOCATIONUUID sy-vline 
WA_IENVAMNSFORACT_STR-DATAUSAGEPERIODICITY sy-vline 
WA_IENVAMNSFORACT_STR-EHSLOCATIONNAME sy-vline 
WA_IENVAMNSFORACT_STR-COUNTRY sy-vline 
WA_IENVAMNSFORACT_STR-PLANT sy-vline 
WA_IENVAMNSFORACT_STR-PLANTNAME sy-vline 
WA_IENVAMNSFORACT_STR-BUSINESSAREA sy-vline 
WA_IENVAMNSFORACT_STR-REGION sy-vline 
WA_IENVAMNSFORACT_STR-EHSLOCATIONTYPE sy-vline 
WA_IENVAMNSFORACT_STR-DATAPERIODNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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