ABAP Select data from SAP table ISNAPCOMPARE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISNAPCOMPARE
*  INTO TABLE @DATA(IT_ISNAPCOMPARE2).
*--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_ISNAPCOMPARE INDEX 1 INTO DATA(WA_ISNAPCOMPARE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISNAPCOMPARE>-SAPCLIENT = 1.
<ISNAPCOMPARE>-LANGUAGE = 1.
<ISNAPCOMPARE>-CASHFLOW = 1.
<ISNAPCOMPARE>-ORIGINDOCUMENT = 1.
<ISNAPCOMPARE>-BANKACCOUNTINTERNALID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISNAPCOMPARE-BANK, sy-vline,
  WA_ISNAPCOMPARE-BANKACCOUNT, sy-vline,
  WA_ISNAPCOMPARE-BANKACCOUNTTYPE, sy-vline,
  WA_ISNAPCOMPARE-BANKCOUNTRY, sy-vline,
  WA_ISNAPCOMPARE-BANKACCOUNTDESCRIPTION, sy-vline,
  WA_ISNAPCOMPARE-BANKGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISNAPCOMPARE 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_ISNAPCOMPARE 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_ISNAPCOMPARE INTO WA_ISNAPCOMPARE.


*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 ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ISNAPCOMPARE-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISNAPCOMPARE-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field TRADINGPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISNAPCOMPARE-TRADINGPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISNAPCOMPARE-TRADINGPARTNER.
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_ISNAPCOMPARE_STR, 
SAPCLIENT TYPE STRING,
LANGUAGE TYPE STRING,
CASHFLOW TYPE STRING,
ORIGINDOCUMENT TYPE STRING,
BANKACCOUNTINTERNALID TYPE STRING,
BANK TYPE STRING,
BANKACCOUNT TYPE STRING,
BANKACCOUNTTYPE TYPE STRING,
BANKCOUNTRY TYPE STRING,
BANKACCOUNTDESCRIPTION TYPE STRING,
BANKGROUP TYPE STRING,
BANKGROUPNAME TYPE STRING,
BANKACCOUNTCURRENCY TYPE STRING,
BUSINESSAREA TYPE STRING,
BUSINESSAREANAME TYPE STRING,
CERTAINTYLEVEL TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
GLACCOUNT TYPE STRING,
HOUSEBANK TYPE STRING,
HOUSEBANKACCOUNT TYPE STRING,
LIQUIDITYITEM TYPE STRING,
CASHFLOWDIRECTION TYPE STRING,
LIQUIDITYITEMNAME TYPE STRING,
CASHPLANNINGGROUP TYPE STRING,
CASHPLANNINGGROUPNAME TYPE STRING,
PLANNINGLEVEL TYPE STRING,
PLANNINGLEVELNAME TYPE STRING,
PROFITCENTER TYPE STRING,
SEGMENT TYPE STRING,
TRADINGPARTNER TYPE STRING,
CASHFLOWSNAPSHOTDATE TYPE STRING,
CALENDARDATE TYPE STRING,
CALENDARDAY TYPE STRING,
WEEKDAY TYPE STRING,
TRANSACTIONDATE TYPE STRING,
DISPLAYCURRENCY TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
AMOUNTINBANKACCOUNTCURRENCY TYPE STRING,
AMOUNTINDISPLAYCURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISNAPCOMPARE_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_ISNAPCOMPARE_STR-SAPCLIENT sy-vline 
WA_ISNAPCOMPARE_STR-LANGUAGE sy-vline 
WA_ISNAPCOMPARE_STR-CASHFLOW sy-vline 
WA_ISNAPCOMPARE_STR-ORIGINDOCUMENT sy-vline 
WA_ISNAPCOMPARE_STR-BANKACCOUNTINTERNALID sy-vline 
WA_ISNAPCOMPARE_STR-BANK sy-vline 
WA_ISNAPCOMPARE_STR-BANKACCOUNT sy-vline 
WA_ISNAPCOMPARE_STR-BANKACCOUNTTYPE sy-vline 
WA_ISNAPCOMPARE_STR-BANKCOUNTRY sy-vline 
WA_ISNAPCOMPARE_STR-BANKACCOUNTDESCRIPTION sy-vline 
WA_ISNAPCOMPARE_STR-BANKGROUP sy-vline 
WA_ISNAPCOMPARE_STR-BANKGROUPNAME sy-vline 
WA_ISNAPCOMPARE_STR-BANKACCOUNTCURRENCY sy-vline 
WA_ISNAPCOMPARE_STR-BUSINESSAREA sy-vline 
WA_ISNAPCOMPARE_STR-BUSINESSAREANAME sy-vline 
WA_ISNAPCOMPARE_STR-CERTAINTYLEVEL sy-vline 
WA_ISNAPCOMPARE_STR-COMPANYCODE sy-vline 
WA_ISNAPCOMPARE_STR-COMPANYCODENAME sy-vline 
WA_ISNAPCOMPARE_STR-TRANSACTIONCURRENCY sy-vline 
WA_ISNAPCOMPARE_STR-GLACCOUNT sy-vline 
WA_ISNAPCOMPARE_STR-HOUSEBANK sy-vline 
WA_ISNAPCOMPARE_STR-HOUSEBANKACCOUNT sy-vline 
WA_ISNAPCOMPARE_STR-LIQUIDITYITEM sy-vline 
WA_ISNAPCOMPARE_STR-CASHFLOWDIRECTION sy-vline 
WA_ISNAPCOMPARE_STR-LIQUIDITYITEMNAME sy-vline 
WA_ISNAPCOMPARE_STR-CASHPLANNINGGROUP sy-vline 
WA_ISNAPCOMPARE_STR-CASHPLANNINGGROUPNAME sy-vline 
WA_ISNAPCOMPARE_STR-PLANNINGLEVEL sy-vline 
WA_ISNAPCOMPARE_STR-PLANNINGLEVELNAME sy-vline 
WA_ISNAPCOMPARE_STR-PROFITCENTER sy-vline 
WA_ISNAPCOMPARE_STR-SEGMENT sy-vline 
WA_ISNAPCOMPARE_STR-TRADINGPARTNER sy-vline 
WA_ISNAPCOMPARE_STR-CASHFLOWSNAPSHOTDATE sy-vline 
WA_ISNAPCOMPARE_STR-CALENDARDATE sy-vline 
WA_ISNAPCOMPARE_STR-CALENDARDAY sy-vline 
WA_ISNAPCOMPARE_STR-WEEKDAY sy-vline 
WA_ISNAPCOMPARE_STR-TRANSACTIONDATE sy-vline 
WA_ISNAPCOMPARE_STR-DISPLAYCURRENCY sy-vline 
WA_ISNAPCOMPARE_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_ISNAPCOMPARE_STR-AMOUNTINBANKACCOUNTCURRENCY sy-vline 
WA_ISNAPCOMPARE_STR-AMOUNTINDISPLAYCURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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