Read-only Definition
A read-only file or storage device contains data that cannot be modified or deleted. While data can be accessed or "read" from a read-only file or device, new data cannot be added or "written" to the device.
Most operating systems, such as Windows and OS X allow you to mark individual files as read-only. In Windows, you can right-click a file and select Properties to view more information about the file. You can click the Read-only checkbox (located in the General ta...
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OS X
PostgreSQL Definition
PostgreSQL Definition
PostgreSQL (pronounced "post-gress-Q-L") is an open source relational database management system ( DBMS ) developed by a worldwide team of volunteers. PostgreSQL is not controlled by any corporation or other private entity and the source code is available free of charge.
PostgreSQL supports transactions, subselects, trigger s, view s, foreign key referential integrity, and sophisticated locking. It runs on numerous platforms including Linux , most flavors of UNIX, M...
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