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:Mapping Objects to Relational Databases @ [http://www.agiledata.org/essays/mappingObjects.html#MappingMetaData agiledata.org]
: Converting Charsets [http://codex.wordpress.org/Converting_Database_Character_Sets]
: In computer science, ACID (atomicity, consistency, isolation, durability) is a set of properties that guarantee database transactions are processed reliably. In the context of databases, a single logical operation on the data is called a transaction. For example, a transfer of funds from one bank account to another, even though that might involve multiple changes (such as debiting one account and crediting another), is a single transaction. [http://en.wikipedia.org/wiki/ACID]
===Persistence===