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FIX: Code Point Comparison Semantics for SQL_Latin1_General_Cp850_BIN Collation

Article ID: 816039 - View products that this article applies to.

BUG #: 363299 (SQL Server 8.0)

SYMPTOMS

When you compare two Unicode strings by using the SQL_Latin1_General_Cp850_BIN collation, SQL Server is designed to compare the first character of each string, and then continue to perform a binary comparison of the remainder of the strings in a byte-by-byte manner. This can cause Unicode data to be sorted in a manner that you might not expect, if you are unfamiliar with these semantics.

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RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Microsoft SQL Server 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

290211

(http://support.microsoft.com/kb/290211/ )

How to obtain the latest SQL Server 2000 service pack

Hotfix information

The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version         Size             File name
   -----------------------------------------------------------------

   03-Mar-2003  19:15  2000.80.780.0   7,516,241 bytes  Sqlservr.exe

Note: Because of file dependencies, the most recent hotfix or feature that contains the files may also contain additional files.

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.This problem was first corrected in Microsoft SQL Server 2000 Service Pack 4.

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MORE INFORMATION

This hotfix introduces a new collation, SQL_Latin1_General_Cp850_BIN2. The semantics of the new SQL_Latin1_General_Cp850_BIN2 collation compares the two strings character by character. The characters are compared by using the Unicode code point.

Code point is a numeric value in Unicode encoding, or in a code page that corresponds to a character. For example, in this new collation, character U-0140 is greater than U-0041, even though the in-memory representation of them is 0x4001 and 0x4100.

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