ABAP Select data from SAP table EHFNDS_AMN_ROOT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHFNDS_AMN_ROOT
*  INTO TABLE @DATA(IT_EHFNDS_AMN_ROOT2).
*--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_EHFNDS_AMN_ROOT INDEX 1 INTO DATA(WA_EHFNDS_AMN_ROOT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHFNDS_AMN_ROOT>-KEY = 1.
<EHFNDS_AMN_ROOT>-PARENT_KEY = 1.
<EHFNDS_AMN_ROOT>-ROOT_KEY = 1.
<EHFNDS_AMN_ROOT>-DATETIME_CR = 1.
<EHFNDS_AMN_ROOT>-USER_ID_CR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHFNDS_AMN_ROOT-DATETIME_CH, sy-vline,
  WA_EHFNDS_AMN_ROOT-USER_ID_CH, sy-vline,
  WA_EHFNDS_AMN_ROOT-ID, sy-vline,
  WA_EHFNDS_AMN_ROOT-DTS_ROOT_KEY_REF, sy-vline,
  WA_EHFNDS_AMN_ROOT-START_DATE, sy-vline,
  WA_EHFNDS_AMN_ROOT-START_TIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHFNDS_AMN_ROOT 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_EHFNDS_AMN_ROOT 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_EHFNDS_AMN_ROOT INTO WA_EHFNDS_AMN_ROOT.


*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 TSTLC, internal->external for field DATETIME_CR
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_AMN_ROOT-DATETIME_CR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_AMN_ROOT-DATETIME_CR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field DATETIME_CH
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_AMN_ROOT-DATETIME_CH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_AMN_ROOT-DATETIME_CH.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit THHMM, internal->external for field START_TIME
CALL FUNCTION 'CONVERSION_EXIT_THHMM_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_AMN_ROOT-START_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_AMN_ROOT-START_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit THHMM, internal->external for field END_TIME
CALL FUNCTION 'CONVERSION_EXIT_THHMM_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_AMN_ROOT-END_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_AMN_ROOT-END_TIME.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit PARID, internal->external for field SAMPLED_PERSON
CALL FUNCTION 'CONVERSION_EXIT_PARID_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_AMN_ROOT-SAMPLED_PERSON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_AMN_ROOT-SAMPLED_PERSON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SYUID, internal->external for field RESP_PERSON
CALL FUNCTION 'CONVERSION_EXIT_SYUID_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_AMN_ROOT-RESP_PERSON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_AMN_ROOT-RESP_PERSON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EHVLT, internal->external for field VALUE_TYPE
CALL FUNCTION 'CONVERSION_EXIT_EHVLT_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_AMN_ROOT-VALUE_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_AMN_ROOT-VALUE_TYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EHOPS, internal->external for field OPERATION_STATUS
CALL FUNCTION 'CONVERSION_EXIT_EHOPS_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_AMN_ROOT-OPERATION_STATUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_AMN_ROOT-OPERATION_STATUS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DIM, internal->external for field DIMENSION
CALL FUNCTION 'CONVERSION_EXIT_DIM_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_AMN_ROOT-DIMENSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_AMN_ROOT-DIMENSION.
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_EHFNDS_AMN_ROOT_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
DATETIME_CR TYPE STRING,
USER_ID_CR TYPE STRING,
DATETIME_CH TYPE STRING,
USER_ID_CH TYPE STRING,
ID TYPE STRING,
DTS_ROOT_KEY_REF TYPE STRING,
START_DATE TYPE STRING,
START_TIME TYPE STRING,
END_DATE TYPE STRING,
END_TIME TYPE STRING,
VALUE TYPE STRING,
UNIT TYPE STRING,
STATUS TYPE STRING,
DTR_COMMENT TYPE STRING,
SAMPLED_PERSON TYPE STRING,
RESP_PERSON TYPE STRING,
FREQUENCY TYPE STRING,
FREQ_EXPOSURE TYPE STRING,
FREQ_DURATION TYPE STRING,
FREQ_DUR_CODE TYPE STRING,
VALUE_TYPE TYPE STRING,
EEW_AMN_ROOT_D TYPE STRING,
OPERATION_STATUS TYPE STRING,
STATUS_DESC TYPE STRING,
PERIOD TYPE STRING,
UNIT_DESC TYPE STRING,
PERSON_GROUP TYPE STRING,
DIMENSION TYPE STRING,
PERSON_POSITION TYPE STRING,
DURATION TYPE STRING,
EEW_AMN_ROOT_DT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHFNDS_AMN_ROOT_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_EHFNDS_AMN_ROOT_STR-KEY sy-vline 
WA_EHFNDS_AMN_ROOT_STR-PARENT_KEY sy-vline 
WA_EHFNDS_AMN_ROOT_STR-ROOT_KEY sy-vline 
WA_EHFNDS_AMN_ROOT_STR-DATETIME_CR sy-vline 
WA_EHFNDS_AMN_ROOT_STR-USER_ID_CR sy-vline 
WA_EHFNDS_AMN_ROOT_STR-DATETIME_CH sy-vline 
WA_EHFNDS_AMN_ROOT_STR-USER_ID_CH sy-vline 
WA_EHFNDS_AMN_ROOT_STR-ID sy-vline 
WA_EHFNDS_AMN_ROOT_STR-DTS_ROOT_KEY_REF sy-vline 
WA_EHFNDS_AMN_ROOT_STR-START_DATE sy-vline 
WA_EHFNDS_AMN_ROOT_STR-START_TIME sy-vline 
WA_EHFNDS_AMN_ROOT_STR-END_DATE sy-vline 
WA_EHFNDS_AMN_ROOT_STR-END_TIME sy-vline 
WA_EHFNDS_AMN_ROOT_STR-VALUE sy-vline 
WA_EHFNDS_AMN_ROOT_STR-UNIT sy-vline 
WA_EHFNDS_AMN_ROOT_STR-STATUS sy-vline 
WA_EHFNDS_AMN_ROOT_STR-DTR_COMMENT sy-vline 
WA_EHFNDS_AMN_ROOT_STR-SAMPLED_PERSON sy-vline 
WA_EHFNDS_AMN_ROOT_STR-RESP_PERSON sy-vline 
WA_EHFNDS_AMN_ROOT_STR-FREQUENCY sy-vline 
WA_EHFNDS_AMN_ROOT_STR-FREQ_EXPOSURE sy-vline 
WA_EHFNDS_AMN_ROOT_STR-FREQ_DURATION sy-vline 
WA_EHFNDS_AMN_ROOT_STR-FREQ_DUR_CODE sy-vline 
WA_EHFNDS_AMN_ROOT_STR-VALUE_TYPE sy-vline 
WA_EHFNDS_AMN_ROOT_STR-EEW_AMN_ROOT_D sy-vline 
WA_EHFNDS_AMN_ROOT_STR-OPERATION_STATUS sy-vline 
WA_EHFNDS_AMN_ROOT_STR-STATUS_DESC sy-vline 
WA_EHFNDS_AMN_ROOT_STR-PERIOD sy-vline 
WA_EHFNDS_AMN_ROOT_STR-UNIT_DESC sy-vline 
WA_EHFNDS_AMN_ROOT_STR-PERSON_GROUP sy-vline 
WA_EHFNDS_AMN_ROOT_STR-DIMENSION sy-vline 
WA_EHFNDS_AMN_ROOT_STR-PERSON_POSITION sy-vline 
WA_EHFNDS_AMN_ROOT_STR-DURATION sy-vline 
WA_EHFNDS_AMN_ROOT_STR-EEW_AMN_ROOT_DT sy-vline      INTO ld_text SEPARATED BY SPACE.

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