When you use the Microsoft SQL Server 2012 or SQL Server 2014 Change Data Capture (CDC) Service for Oracle by Attunity to replicate data changes from Oracle databases to SQL Server databases, some changes are missed, and are not replicated to the SQL Server databases.
Note This issue occurs when a table contains more than one character large binary object (CLOB) and one of the CLOBs has a large value.
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.