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The MDB tools project is an open source effort to create a set of software libraries and utilities to manipulate files in the proprietary JET 3, 4 and 5 database formats (used by Microsoft Access.). Version 0.7 was released in June 2012.
Jet, being part of a relational database management system (RDBMS), allows the manipulation of relational databases. [1] It offers a single interface that other software can use to access Microsoft databases and provides support for security, referential integrity, transaction processing, indexing, record and page locking, and data replication.
There is also the Access Database (ACE and formerly Jet) format (MDB or ACCDB in Access 2007) which can contain the application and data in one file. This makes it very convenient to distribute the entire application to another user, who can run it in disconnected environments.
.mdb, a file-extension used in certain versions of Microsoft Access databases; MDB, a kernel debugger for the Linux kernel. MDB, the NASDAQ ticker symbol for MongoDB, a database management system. Message Driven Bean, a special type of Enterprise JavaBean; Modular Debugger, a debugger available as part of the Solaris Operating System
The latest version of MDAC (2.8) consists of several interacting components, all of which are Windows specific except for ODBC (which is available on several platforms). ). MDAC architecture may be viewed as three layers: a programming interface layer, consisting of ADO and ADO.NET, a database access layer developed by database vendors such as Oracle and Microsoft (OLE DB, .NET managed ...
Users can exist without schema objects, but an object is always associated with an owner (though that owner may not have privileges to connect to the database). With the 'shared-everything' Oracle RAC architecture, the same database can be opened by multiple servers concurrently.
A pool of database connections can be created and then shared among the applications that need to access the database. The connection object obtained from the connection pool is often a wrapper around the actual database connection. The wrapper understands its relationship with the pool, and hides the details of the pool from the application.
ACCDB – Microsoft Database (Microsoft Office Access 2007 and later) ACCDE – Compiled Microsoft Database (Microsoft Office Access 2007 and later) ADT – Sybase Advantage Database Server (ADS) APR – Lotus Approach data entry & reports; BOX – Lotus Notes Post Office mail routing database