ABAP Select data from SAP table ENHIS_EPIIOT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ENHIS_EPIIOT
*  INTO TABLE @DATA(IT_ENHIS_EPIIOT2).
*--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_ENHIS_EPIIOT INDEX 1 INTO DATA(WA_ENHIS_EPIIOT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ENHIS_EPIIOT>-MARKFLG = 1.
<ENHIS_EPIIOT>-SELEFLG = 1.
<ENHIS_EPIIOT>-LINENO = 1.
<ENHIS_EPIIOT>-LINEMOD = 1.
<ENHIS_EPIIOT>-CHCOFLG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ENHIS_EPIIOT-LOCKMOD, sy-vline,
  WA_ENHIS_EPIIOT-INTRFLG, sy-vline,
  WA_ENHIS_EPIIOT-MANDT, sy-vline,
  WA_ENHIS_EPIIOT-RECN, sy-vline,
  WA_ENHIS_EPIIOT-ACTN, sy-vline,
  WA_ENHIS_EPIIOT-VALFR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ENHIS_EPIIOT 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_ENHIS_EPIIOT 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_ENHIS_EPIIOT INTO WA_ENHIS_EPIIOT.


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

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

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

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

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

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

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

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

*Conversion exit CHRID, internal->external for field PTID
CALL FUNCTION 'CONVERSION_EXIT_CHRID_OUTPUT'
  EXPORTING
    input =                      WA_ENHIS_EPIIOT-PTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENHIS_EPIIOT-PTID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CHRID, internal->external for field CPID
CALL FUNCTION 'CONVERSION_EXIT_CHRID_OUTPUT'
  EXPORTING
    input =                      WA_ENHIS_EPIIOT-CPID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ENHIS_EPIIOT-CPID.
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_ENHIS_EPIIOT_STR, 
MARKFLG TYPE STRING,
SELEFLG TYPE STRING,
LINENO TYPE STRING,
LINEMOD TYPE STRING,
CHCOFLG TYPE STRING,
LOCKMOD TYPE STRING,
INTRFLG TYPE STRING,
MANDT TYPE STRING,
RECN TYPE STRING,
ACTN TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
AENNR TYPE STRING,
DELFLG TYPE STRING,
PARKFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
SRSID TYPE STRING,
OWNID TYPE STRING,
RECNROOT TYPE STRING,
RECNTOBJ TYPE STRING,
EPREFOBJ TYPE STRING,
EPTYPE TYPE STRING,
EPID TYPE STRING,
RATINGCAT TYPE STRING,
EPVAL TYPE STRING,
EPIORIG TYPE STRING,
EPIREMARK TYPE STRING,
OPCOND TYPE STRING,
RECNTEPIREF TYPE STRING,
RECNTCP TYPE STRING,
MARKTEXT TYPE STRING,
EPIORIGNAM TYPE STRING,
EPTYPENAM TYPE STRING,
EPNAM TYPE STRING,
EPVALNAM TYPE STRING,
ASSETSTAT TYPE STRING,
OPCONDTXT TYPE STRING,
PTID TYPE STRING,
PTNAM TYPE STRING,
CPID TYPE STRING,
CPNAM TYPE STRING,
REFICON TYPE STRING,
ASSETSTATNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ENHIS_EPIIOT_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_ENHIS_EPIIOT_STR-MARKFLG sy-vline 
WA_ENHIS_EPIIOT_STR-SELEFLG sy-vline 
WA_ENHIS_EPIIOT_STR-LINENO sy-vline 
WA_ENHIS_EPIIOT_STR-LINEMOD sy-vline 
WA_ENHIS_EPIIOT_STR-CHCOFLG sy-vline 
WA_ENHIS_EPIIOT_STR-LOCKMOD sy-vline 
WA_ENHIS_EPIIOT_STR-INTRFLG sy-vline 
WA_ENHIS_EPIIOT_STR-MANDT sy-vline 
WA_ENHIS_EPIIOT_STR-RECN sy-vline 
WA_ENHIS_EPIIOT_STR-ACTN sy-vline 
WA_ENHIS_EPIIOT_STR-VALFR sy-vline 
WA_ENHIS_EPIIOT_STR-VALTO sy-vline 
WA_ENHIS_EPIIOT_STR-AENNR sy-vline 
WA_ENHIS_EPIIOT_STR-DELFLG sy-vline 
WA_ENHIS_EPIIOT_STR-PARKFLG sy-vline 
WA_ENHIS_EPIIOT_STR-CRDAT sy-vline 
WA_ENHIS_EPIIOT_STR-CRNAM sy-vline 
WA_ENHIS_EPIIOT_STR-UPDDAT sy-vline 
WA_ENHIS_EPIIOT_STR-UPDNAM sy-vline 
WA_ENHIS_EPIIOT_STR-SRSID sy-vline 
WA_ENHIS_EPIIOT_STR-OWNID sy-vline 
WA_ENHIS_EPIIOT_STR-RECNROOT sy-vline 
WA_ENHIS_EPIIOT_STR-RECNTOBJ sy-vline 
WA_ENHIS_EPIIOT_STR-EPREFOBJ sy-vline 
WA_ENHIS_EPIIOT_STR-EPTYPE sy-vline 
WA_ENHIS_EPIIOT_STR-EPID sy-vline 
WA_ENHIS_EPIIOT_STR-RATINGCAT sy-vline 
WA_ENHIS_EPIIOT_STR-EPVAL sy-vline 
WA_ENHIS_EPIIOT_STR-EPIORIG sy-vline 
WA_ENHIS_EPIIOT_STR-EPIREMARK sy-vline 
WA_ENHIS_EPIIOT_STR-OPCOND sy-vline 
WA_ENHIS_EPIIOT_STR-RECNTEPIREF sy-vline 
WA_ENHIS_EPIIOT_STR-RECNTCP sy-vline 
WA_ENHIS_EPIIOT_STR-MARKTEXT sy-vline 
WA_ENHIS_EPIIOT_STR-EPIORIGNAM sy-vline 
WA_ENHIS_EPIIOT_STR-EPTYPENAM sy-vline 
WA_ENHIS_EPIIOT_STR-EPNAM sy-vline 
WA_ENHIS_EPIIOT_STR-EPVALNAM sy-vline 
WA_ENHIS_EPIIOT_STR-ASSETSTAT sy-vline 
WA_ENHIS_EPIIOT_STR-OPCONDTXT sy-vline 
WA_ENHIS_EPIIOT_STR-PTID sy-vline 
WA_ENHIS_EPIIOT_STR-PTNAM sy-vline 
WA_ENHIS_EPIIOT_STR-CPID sy-vline 
WA_ENHIS_EPIIOT_STR-CPNAM sy-vline 
WA_ENHIS_EPIIOT_STR-REFICON sy-vline 
WA_ENHIS_EPIIOT_STR-ASSETSTATNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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