ABAP Select data from SAP table EHFNDW_ECTXCFISH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHFNDW_ECTXCFISH
*  INTO TABLE @DATA(IT_EHFNDW_ECTXCFISH2).
*--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_EHFNDW_ECTXCFISH INDEX 1 INTO DATA(WA_EHFNDW_ECTXCFISH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHFNDW_ECTXCFISH>-MANDT = 1.
<EHFNDW_ECTXCFISH>-PCECTXCHRNCFISHUUID = 1.
<EHFNDW_ECTXCFISH>-PCECTXPRPTYUUID = 1.
<EHFNDW_ECTXCFISH>-PCECTXSPECIESPHRSUUID = 1.
<EHFNDW_ECTXCFISH>-PCECTXEXPSRDURN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHFNDW_ECTXCFISH-PCECTXEXPSRDURNASTEXT, sy-vline,
  WA_EHFNDW_ECTXCFISH-PCECTXEXPSRUOM, sy-vline,
  WA_EHFNDW_ECTXCFISH-PCECTXVALUETYPEPHRSUUID, sy-vline,
  WA_EHFNDW_ECTXCFISH-PCECTXVALUELOWRQTY, sy-vline,
  WA_EHFNDW_ECTXCFISH-PCECTXVALUELOWRQTYTXT, sy-vline,
  WA_EHFNDW_ECTXCFISH-PCECTXVALUELOWRQTYOPTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHFNDW_ECTXCFISH 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_EHFNDW_ECTXCFISH 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_EHFNDW_ECTXCFISH INTO WA_EHFNDW_ECTXCFISH.


*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 CUNIT, internal->external for field PCECTXEXPSRUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDW_ECTXCFISH-PCECTXEXPSRUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDW_ECTXCFISH-PCECTXEXPSRUOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PCECTXVALUEUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDW_ECTXCFISH-PCECTXVALUEUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDW_ECTXCFISH-PCECTXVALUEUOM.
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_EHFNDW_ECTXCFISH_STR, 
MANDT TYPE STRING,
PCECTXCHRNCFISHUUID TYPE STRING,
PCECTXPRPTYUUID TYPE STRING,
PCECTXSPECIESPHRSUUID TYPE STRING,
PCECTXEXPSRDURN TYPE STRING,
PCECTXEXPSRDURNASTEXT TYPE STRING,
PCECTXEXPSRUOM TYPE STRING,
PCECTXVALUETYPEPHRSUUID TYPE STRING,
PCECTXVALUELOWRQTY TYPE STRING,
PCECTXVALUELOWRQTYTXT TYPE STRING,
PCECTXVALUELOWRQTYOPTR TYPE STRING,
PCECTXVALUEUPRQTY TYPE STRING,
PCECTXVALUEUPRQTYTXT TYPE STRING,
PCECTXVALUEUPRQTYOPTR TYPE STRING,
PCECTXVALUEUOM TYPE STRING,
PCECTXMETHODPHRSUUID TYPE STRING,
PCECTXNOTETEXT TYPE STRING,
PCECTXRATING TYPE STRING,
PCECTXADDLSTATEMENTPHRSUUID TYPE STRING,
PCECTXASSMTPHRSUUID TYPE STRING,
CREATIONUTCDATETIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEUTCDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
ACTIVEUUID TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHFNDW_ECTXCFISH_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_EHFNDW_ECTXCFISH_STR-MANDT sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXCHRNCFISHUUID sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXPRPTYUUID sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXSPECIESPHRSUUID sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXEXPSRDURN sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXEXPSRDURNASTEXT sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXEXPSRUOM sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXVALUETYPEPHRSUUID sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXVALUELOWRQTY sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXVALUELOWRQTYTXT sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXVALUELOWRQTYOPTR sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXVALUEUPRQTY sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXVALUEUPRQTYTXT sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXVALUEUPRQTYOPTR sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXVALUEUOM sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXMETHODPHRSUUID sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXNOTETEXT sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXRATING sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXADDLSTATEMENTPHRSUUID sy-vline 
WA_EHFNDW_ECTXCFISH_STR-PCECTXASSMTPHRSUUID sy-vline 
WA_EHFNDW_ECTXCFISH_STR-CREATIONUTCDATETIME sy-vline 
WA_EHFNDW_ECTXCFISH_STR-CREATEDBYUSER sy-vline 
WA_EHFNDW_ECTXCFISH_STR-LASTCHANGEUTCDATETIME sy-vline 
WA_EHFNDW_ECTXCFISH_STR-LASTCHANGEDBYUSER sy-vline 
WA_EHFNDW_ECTXCFISH_STR-ACTIVEUUID sy-vline 
WA_EHFNDW_ECTXCFISH_STR-HASACTIVEENTITY sy-vline 
WA_EHFNDW_ECTXCFISH_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_EHFNDW_ECTXCFISH_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_EHFNDW_ECTXCFISH_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_EHFNDW_ECTXCFISH_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_EHFNDW_ECTXCFISH_STR-DRAFTENTITYOPERATIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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