ABAP Select data from SAP table EHFNDS_FW_WFF_REP_PROC_INST into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EHFNDS_FW_WFF_REP_PROC_INST 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_FW_WFF_REP_PROC_INST. 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_FW_WFF_REP_PROC_INST 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_FW_WFF_REP_PROC_INST TYPE STANDARD TABLE OF EHFNDS_FW_WFF_REP_PROC_INST,
      WA_EHFNDS_FW_WFF_REP_PROC_INST TYPE EHFNDS_FW_WFF_REP_PROC_INST,
      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_FW_WFF_REP_PROC_INST> TYPE EHFNDS_FW_WFF_REP_PROC_INST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHFNDS_FW_WFF_REP_PROC_INST
*  INTO TABLE @DATA(IT_EHFNDS_FW_WFF_REP_PROC_INST2).
*--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_FW_WFF_REP_PROC_INST INDEX 1 INTO DATA(WA_EHFNDS_FW_WFF_REP_PROC_INST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHFNDS_FW_WFF_REP_PROC_INST>-EHSM_COMP = 1.
<EHFNDS_FW_WFF_REP_PROC_INST>-PURPOSE = 1.
<EHFNDS_FW_WFF_REP_PROC_INST>-PROC_VARIANT = 1.
<EHFNDS_FW_WFF_REP_PROC_INST>-CONF_KEY = 1.
<EHFNDS_FW_WFF_REP_PROC_INST>-DATE_CREATED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHFNDS_FW_WFF_REP_PROC_INST-DATE_COMPLETED, sy-vline,
  WA_EHFNDS_FW_WFF_REP_PROC_INST-STATUS, sy-vline,
  WA_EHFNDS_FW_WFF_REP_PROC_INST-AGE, sy-vline,
  WA_EHFNDS_FW_WFF_REP_PROC_INST-OVERDUE, sy-vline,
  WA_EHFNDS_FW_WFF_REP_PROC_INST-BW_DELTATIMESTMP, sy-vline,
  WA_EHFNDS_FW_WFF_REP_PROC_INST-SUBSTANCE_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHFNDS_FW_WFF_REP_PROC_INST 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_FW_WFF_REP_PROC_INST 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_FW_WFF_REP_PROC_INST INTO WA_EHFNDS_FW_WFF_REP_PROC_INST.


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

*Conversion exit SPEC1, internal->external for field SUBSTANCE_ID
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_FW_WFF_REP_PROC_INST-SUBSTANCE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_FW_WFF_REP_PROC_INST-SUBSTANCE_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL_ID
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_FW_WFF_REP_PROC_INST-MATERIAL_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_FW_WFF_REP_PROC_INST-MATERIAL_ID.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field PARENT_COMP_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EHFNDS_FW_WFF_REP_PROC_INST-PARENT_COMP_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHFNDS_FW_WFF_REP_PROC_INST-PARENT_COMP_ID.
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_FW_WFF_REP_PROC_INST_STR, 
EHSM_COMP TYPE STRING,
PURPOSE TYPE STRING,
PROC_VARIANT TYPE STRING,
CONF_KEY TYPE STRING,
DATE_CREATED TYPE STRING,
DATE_COMPLETED TYPE STRING,
STATUS TYPE STRING,
AGE TYPE STRING,
OVERDUE TYPE STRING,
BW_DELTATIMESTMP TYPE STRING,
SUBSTANCE_ID TYPE STRING,
MATERIAL_ID TYPE STRING,
CUSTOMER_ID TYPE STRING,
SUPPLIER_ID TYPE STRING,
BO_KEY_REF TYPE STRING,
BO_ROOT_KEY_REF TYPE STRING,
BO_NODE_KEY_REF TYPE STRING,
BO_KEY_REF_NODE TYPE STRING,
BW_RECORDNUMBER TYPE STRING,
PROD_COMP_ID TYPE STRING,
PARENT_COMP_ID TYPE STRING,
DUPLICATE TYPE STRING,
REV_STATUS TYPE STRING,
ACTIVITY TYPE STRING,
OBJECT_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHFNDS_FW_WFF_REP_PROC_INST_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_FW_WFF_REP_PROC_INST_STR-EHSM_COMP sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-PURPOSE sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-PROC_VARIANT sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-CONF_KEY sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-DATE_CREATED sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-DATE_COMPLETED sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-STATUS sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-AGE sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-OVERDUE sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-BW_DELTATIMESTMP sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-SUBSTANCE_ID sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-MATERIAL_ID sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-CUSTOMER_ID sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-SUPPLIER_ID sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-BO_KEY_REF sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-BO_ROOT_KEY_REF sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-BO_NODE_KEY_REF sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-BO_KEY_REF_NODE sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-BW_RECORDNUMBER sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-PROD_COMP_ID sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-PARENT_COMP_ID sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-DUPLICATE sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-REV_STATUS sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-ACTIVITY sy-vline 
WA_EHFNDS_FW_WFF_REP_PROC_INST_STR-OBJECT_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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