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Free embedded database library for your Mac Metakit is an efficient embedded database library with a small footprint. It fills the gap between flat-file, relational, object-oriented, and tree-structured databases, supporting relational joins, serialization, nested structures, and instant schema evolution. There is a C++ API, a Python binding called Mk4py, and a Tcl binding called Mk4tcl. You can manipulate and exchange data between any of these.Metakit is a portable library and has been used on Mac OS X, Windows, Unix, VMS, and others, spanning a range of 16- to 64-bit architectures, from PDA's to S390's. Here are some key features of "Metakit": Use your data on any platform: · Both the code and datafiles are portable. All byte-ordering managed by the library. Complex datastructures in one file: · Store multiple nested data structures, to create document-centric applications. Restructure datafiles, instantly: · You'll have to see this to believe it: restructure files on-the-fly, while open. Serialize all data for transport: · Complementing commit/rollback of changes, data can also be serialized. Recover from system-failures: · The use of Stable Storage ensures that files cannot be corrupted by crashes. Load on-demand, quick startup: · Files are opened without reading data. Memory-mapped files if O/S supports it. Behaves like containers: · The API mimics container classes. Quickly get sizes and iterate over rows. Wide range of operators built-in: · Sorting, relational join / group by, set operations, permutations, hashing. 1-32 bits per int (or 64), variable-sized data: · The largest int defines storage format. String/binary data is stored as var-sized. Create fully self-contained applications: · Can be linked shared or statically, for hassle-free deployment of components. Tiny code (125 Kb as Win32 DLL): · The library is extremely small, unused functions are stripped off in static links. Simple API, just 6 core classes: · Only a small interface is exposed. One header file lists all the classes you need. Also use from Python and Tcl: · These language bindings are coded to take advantage of the respective idioms.

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