topic Re: Question on : Unicode Checks in Application Development and Automation Discussions

Question on : Unicode Checks

Former Member — Wed, 28 Feb 2007 03:32:55 GMT

Hi Abapers,

If i am using 4.7 where Unicode Checks were there , how it is different from previous versions , if i am upgrading code from previous version

, what are the precautions should i need to take care , in which part of the statements should i need change ......

With Regards

Bhaskar Rao.M

Re: Question on : Unicode Checks

christian_wohlfahrt — Wed, 28 Feb 2007 07:33:05 GMT

Hi!

Most problems occur with move (also by perform / call function), when an un-structured variable should be equal a structured variable.


data: begin of ls_struc,
          field1(10) type c,   "has 20 bytes
          field2(10) type n,   "has 10 bytes
        end of ls_struc,
        field3(20) type c.     "has 40 bytes
move field3 to ls_struc.   "error in unicode

In a non-unicode system the move would work, because field3 has 20 bytes just as ls_struc.

Regards,

Christian

Re: Question on : Unicode Checks

Former Member — Wed, 28 Feb 2007 13:27:44 GMT

Hi,

This switch to Unicode affects all statements where an explicit or implicit assumption is made about the internal length of a character. If you use these statements in a program that is designed to exploit the Unicode capabilities of the runtime environment, they must be checked and changed if necessary. Once a Unicode-enabled program has been changed accordingly, it behaves in the same way in both Unicode and non-Unicode systems. You can develop programs in a non-Unicode system (NUS) and then import them into a Unicode system (US).

Restrictions in Unicode Programs

The adjustments you have to make and the restrictions that apply in the Unicode context have been limited to the essentials on the ABAP development side to keep the conversion effort for ABAP users to a minimum. In some cases, however, this has led to the emergence of more complex rules, for example, with regard to assignments and comparisons between incompatible structures.

Character-Type and Numeric-Type Operands

Access Using Offset and Length Specifications

Assignments

Comparisons

Processing Strings

Type Checks and Type Compatibility

Changes to Database Operations

Determining the Length and Distance

Regards,

Sruthi

Re: Question on : Unicode Checks

former_member183804 — Wed, 28 Feb 2007 15:13:43 GMT

Hallo Bhaskar,

the transaction /nABAPHELP contains in Release 7.10 an according chapter.

Regards,

Klaus

Re: Question on : Unicode Checks

Former Member — Thu, 01 Mar 2007 06:20:51 GMT

Hi,

Any bolgs available for this.

Kishi.

Re: Question on : Unicode Checks

Former Member — Thu, 01 Mar 2007 09:44:39 GMT

hi,

many problem you will face is in OPEN dataset statements and in the SPLIT,CONCATENATE,OVERLAT,TRANSLATE, in non unicode versions these stmnt can perform operations on non character type also, but in the unicode versions these opn are possible only using character data type(c,n,d,t).

Re: Question on : Unicode Checks

Former Member — Wed, 07 Mar 2007 12:37:13 GMT

IF u are using open data set for input/output/appending you must and should use encoding default other wise it will give error

Re: Question on : Unicode Checks

Former Member — Fri, 09 Mar 2007 05:56:28 GMT

Hi...

In versions enabled with unicode checks, problems arise when you try to assign data to a variable which is not large enough to hold it..... Versions prior to 4.7 would not throw an error as truncation occurs... but with versions with unicode checks enabled an error is reported....

You will have to replace certain obsolete function modules like ws_upload and ws_download with suitable function modules like gui_upload and gui_download....

Please reward points if found useful

Re: Question on : Unicode Checks

Former Member — Sat, 10 Mar 2007 11:37:05 GMT

Hi,

Thanks for ur answer...

With Regards

Bhaskar Rao.M