ABAP Select data from SAP table ISIENHANCED into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISIENHANCED
*  INTO TABLE @DATA(IT_ISIENHANCED2).
*--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_ISIENHANCED INDEX 1 INTO DATA(WA_ISIENHANCED2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISIENHANCED>-MANDT = 1.
<ISIENHANCED>-SALESINQUIRY = 1.
<ISIENHANCED>-SALESINQUIRYTYPE = 1.
<ISIENHANCED>-SALESORGANIZATION = 1.
<ISIENHANCED>-DISTRIBUTIONCHANNEL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISIENHANCED-ORGANIZATIONDIVISION, sy-vline,
  WA_ISIENHANCED-SALESGROUP, sy-vline,
  WA_ISIENHANCED-SALESOFFICE, sy-vline,
  WA_ISIENHANCED-SALESDISTRICT, sy-vline,
  WA_ISIENHANCED-SOLDTOPARTY, sy-vline,
  WA_ISIENHANCED-CREATIONDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISIENHANCED 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_ISIENHANCED 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_ISIENHANCED INTO WA_ISIENHANCED.


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

*Conversion exit AUART, internal->external for field SALESINQUIRYTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_ISIENHANCED-SALESINQUIRYTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISIENHANCED-SALESINQUIRYTYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SOLDTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISIENHANCED-SOLDTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISIENHANCED-SOLDTOPARTY.
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_ISIENHANCED_STR, 
MANDT TYPE STRING,
SALESINQUIRY TYPE STRING,
SALESINQUIRYTYPE TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
ORGANIZATIONDIVISION TYPE STRING,
SALESGROUP TYPE STRING,
SALESOFFICE TYPE STRING,
SALESDISTRICT TYPE STRING,
SOLDTOPARTY TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
PURCHASEORDERBYCUSTOMER TYPE STRING,
CUSTOMERPURCHASEORDERTYPE TYPE STRING,
CUSTOMERPURCHASEORDERDATE TYPE STRING,
SALESINQUIRYDATE TYPE STRING,
TOTALNETAMOUNT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
SDDOCUMENTREASON TYPE STRING,
PRICINGDATE TYPE STRING,
HEADERBILLINGBLOCKREASON TYPE STRING,
BINDINGPERIODVALIDITYSTARTDATE TYPE STRING,
BINDINGPERIODVALIDITYENDDATE TYPE STRING,
HDRORDERPROBABILITYINPERCENT TYPE STRING,
EXPECTEDORDERNETAMOUNT TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSTRANSFERLOCATION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
INCOTERMSLOCATION2 TYPE STRING,
INCOTERMSVERSION TYPE STRING,
CUSTOMERPAYMENTTERMS TYPE STRING,
PAYMENTMETHOD TYPE STRING,
OVERALLSDPROCESSSTATUS TYPE STRING,
TOTALCREDITCHECKSTATUS TYPE STRING,
OVERALLSDDOCUMENTREJECTIONSTS TYPE STRING,
FASHIONCANCELDATE TYPE STRING,
RETAILADDITIONALCUSTOMERGRP6 TYPE STRING,
RETAILADDITIONALCUSTOMERGRP7 TYPE STRING,
RETAILADDITIONALCUSTOMERGRP8 TYPE STRING,
RETAILADDITIONALCUSTOMERGRP9 TYPE STRING,
RETAILADDITIONALCUSTOMERGRP10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISIENHANCED_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_ISIENHANCED_STR-MANDT sy-vline 
WA_ISIENHANCED_STR-SALESINQUIRY sy-vline 
WA_ISIENHANCED_STR-SALESINQUIRYTYPE sy-vline 
WA_ISIENHANCED_STR-SALESORGANIZATION sy-vline 
WA_ISIENHANCED_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ISIENHANCED_STR-ORGANIZATIONDIVISION sy-vline 
WA_ISIENHANCED_STR-SALESGROUP sy-vline 
WA_ISIENHANCED_STR-SALESOFFICE sy-vline 
WA_ISIENHANCED_STR-SALESDISTRICT sy-vline 
WA_ISIENHANCED_STR-SOLDTOPARTY sy-vline 
WA_ISIENHANCED_STR-CREATIONDATE sy-vline 
WA_ISIENHANCED_STR-CREATEDBYUSER sy-vline 
WA_ISIENHANCED_STR-LASTCHANGEDATE sy-vline 
WA_ISIENHANCED_STR-LASTCHANGEDATETIME sy-vline 
WA_ISIENHANCED_STR-PURCHASEORDERBYCUSTOMER sy-vline 
WA_ISIENHANCED_STR-CUSTOMERPURCHASEORDERTYPE sy-vline 
WA_ISIENHANCED_STR-CUSTOMERPURCHASEORDERDATE sy-vline 
WA_ISIENHANCED_STR-SALESINQUIRYDATE sy-vline 
WA_ISIENHANCED_STR-TOTALNETAMOUNT sy-vline 
WA_ISIENHANCED_STR-TRANSACTIONCURRENCY sy-vline 
WA_ISIENHANCED_STR-SDDOCUMENTREASON sy-vline 
WA_ISIENHANCED_STR-PRICINGDATE sy-vline 
WA_ISIENHANCED_STR-HEADERBILLINGBLOCKREASON sy-vline 
WA_ISIENHANCED_STR-BINDINGPERIODVALIDITYSTARTDATE sy-vline 
WA_ISIENHANCED_STR-BINDINGPERIODVALIDITYENDDATE sy-vline 
WA_ISIENHANCED_STR-HDRORDERPROBABILITYINPERCENT sy-vline 
WA_ISIENHANCED_STR-EXPECTEDORDERNETAMOUNT sy-vline 
WA_ISIENHANCED_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_ISIENHANCED_STR-INCOTERMSTRANSFERLOCATION sy-vline 
WA_ISIENHANCED_STR-INCOTERMSLOCATION1 sy-vline 
WA_ISIENHANCED_STR-INCOTERMSLOCATION2 sy-vline 
WA_ISIENHANCED_STR-INCOTERMSVERSION sy-vline 
WA_ISIENHANCED_STR-CUSTOMERPAYMENTTERMS sy-vline 
WA_ISIENHANCED_STR-PAYMENTMETHOD sy-vline 
WA_ISIENHANCED_STR-OVERALLSDPROCESSSTATUS sy-vline 
WA_ISIENHANCED_STR-TOTALCREDITCHECKSTATUS sy-vline 
WA_ISIENHANCED_STR-OVERALLSDDOCUMENTREJECTIONSTS sy-vline 
WA_ISIENHANCED_STR-FASHIONCANCELDATE sy-vline 
WA_ISIENHANCED_STR-RETAILADDITIONALCUSTOMERGRP6 sy-vline 
WA_ISIENHANCED_STR-RETAILADDITIONALCUSTOMERGRP7 sy-vline 
WA_ISIENHANCED_STR-RETAILADDITIONALCUSTOMERGRP8 sy-vline 
WA_ISIENHANCED_STR-RETAILADDITIONALCUSTOMERGRP9 sy-vline 
WA_ISIENHANCED_STR-RETAILADDITIONALCUSTOMERGRP10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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