ABAP Select data from SAP table EHENVV_AAMN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHENVV_AAMN
*  INTO TABLE @DATA(IT_EHENVV_AAMN2).
*--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_EHENVV_AAMN INDEX 1 INTO DATA(WA_EHENVV_AAMN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHENVV_AAMN>-MANDT = 1.
<EHENVV_AAMN>-LOCATION_TEXT = 1.
<EHENVV_AAMN>-LOC_AUTH_GROUP = 1.
<EHENVV_AAMN>-PLANT_ID = 1.
<EHENVV_AAMN>-COST_CENTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHENVV_AAMN-COMPANY_CODE, sy-vline,
  WA_EHENVV_AAMN-BUSS_AREA, sy-vline,
  WA_EHENVV_AAMN-TYPE, sy-vline,
  WA_EHENVV_AAMN-COUNTRY, sy-vline,
  WA_EHENVV_AAMN-REGION, sy-vline,
  WA_EHENVV_AAMN-LOC_STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHENVV_AAMN 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_EHENVV_AAMN 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_EHENVV_AAMN INTO WA_EHENVV_AAMN.


*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 LCAUT, internal->external for field LOC_AUTH_GROUP
CALL FUNCTION 'CONVERSION_EXIT_LCAUT_OUTPUT'
  EXPORTING
    input =                      WA_EHENVV_AAMN-LOC_AUTH_GROUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHENVV_AAMN-LOC_AUTH_GROUP.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit LCTYP, internal->external for field TYPE
CALL FUNCTION 'CONVERSION_EXIT_LCTYP_OUTPUT'
  EXPORTING
    input =                      WA_EHENVV_AAMN-TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHENVV_AAMN-TYPE.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CHFLT, internal->external for field VALUE
CALL FUNCTION 'CONVERSION_EXIT_CHFLT_OUTPUT'
  EXPORTING
    input =                      WA_EHENVV_AAMN-VALUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHENVV_AAMN-VALUE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DFVAL, internal->external for field DATA_PERIOD
CALL FUNCTION 'CONVERSION_EXIT_DFVAL_OUTPUT'
  EXPORTING
    input =                      WA_EHENVV_AAMN-DATA_PERIOD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHENVV_AAMN-DATA_PERIOD.
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_EHENVV_AAMN_STR, 
MANDT TYPE STRING,
LOCATION_TEXT TYPE STRING,
LOC_AUTH_GROUP TYPE STRING,
PLANT_ID TYPE STRING,
COST_CENTER TYPE STRING,
COMPANY_CODE TYPE STRING,
BUSS_AREA TYPE STRING,
TYPE TYPE STRING,
COUNTRY TYPE STRING,
REGION TYPE STRING,
LOC_STATUS TYPE STRING,
AMOUNT_KEY TYPE STRING,
AMOUNT_STATUS TYPE STRING,
ISSUE_TYPE_ICON TYPE STRING,
ISSUE_TYPE TYPE STRING,
SOURCETYPE TYPE STRING,
EXTERNAL_SRC TYPE STRING,
DEVIATION_ID TYPE STRING,
PRELIMINARY_IND TYPE STRING,
VALUE TYPE STRING,
UNIT_TEXT TYPE STRING,
VALUE_MONTH_TXT TYPE STRING,
VALUE_DATE TYPE STRING,
VALUETIMESTAMP TYPE STRING,
DATA_TITLE TYPE STRING,
DATA_PERIOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHENVV_AAMN_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_EHENVV_AAMN_STR-MANDT sy-vline 
WA_EHENVV_AAMN_STR-LOCATION_TEXT sy-vline 
WA_EHENVV_AAMN_STR-LOC_AUTH_GROUP sy-vline 
WA_EHENVV_AAMN_STR-PLANT_ID sy-vline 
WA_EHENVV_AAMN_STR-COST_CENTER sy-vline 
WA_EHENVV_AAMN_STR-COMPANY_CODE sy-vline 
WA_EHENVV_AAMN_STR-BUSS_AREA sy-vline 
WA_EHENVV_AAMN_STR-TYPE sy-vline 
WA_EHENVV_AAMN_STR-COUNTRY sy-vline 
WA_EHENVV_AAMN_STR-REGION sy-vline 
WA_EHENVV_AAMN_STR-LOC_STATUS sy-vline 
WA_EHENVV_AAMN_STR-AMOUNT_KEY sy-vline 
WA_EHENVV_AAMN_STR-AMOUNT_STATUS sy-vline 
WA_EHENVV_AAMN_STR-ISSUE_TYPE_ICON sy-vline 
WA_EHENVV_AAMN_STR-ISSUE_TYPE sy-vline 
WA_EHENVV_AAMN_STR-SOURCETYPE sy-vline 
WA_EHENVV_AAMN_STR-EXTERNAL_SRC sy-vline 
WA_EHENVV_AAMN_STR-DEVIATION_ID sy-vline 
WA_EHENVV_AAMN_STR-PRELIMINARY_IND sy-vline 
WA_EHENVV_AAMN_STR-VALUE sy-vline 
WA_EHENVV_AAMN_STR-UNIT_TEXT sy-vline 
WA_EHENVV_AAMN_STR-VALUE_MONTH_TXT sy-vline 
WA_EHENVV_AAMN_STR-VALUE_DATE sy-vline 
WA_EHENVV_AAMN_STR-VALUETIMESTAMP sy-vline 
WA_EHENVV_AAMN_STR-DATA_TITLE sy-vline 
WA_EHENVV_AAMN_STR-DATA_PERIOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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