I got an email from a customer who wanted to use BLOB data type in their CMP entity bean. They store images in BLOB data types in Oracle database and want to map their CMP entity bean field to a BLOB ...
Prior to updating a BLOB value, you must lock the row containing the BLOB locator. This is usually done using a SELECT FOR UPDATE statement in SQL and PL/SQL programs, or using an OCI pin or lock ...
When it comes to building applications on the public cloud, you’re spoiled for storage. You’ve got SQL, NoSQL, graph databases, document databases, and even good old-fashioned file systems. Choosing ...
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