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  2. Automatic Storage Management - Wikipedia

    en.wikipedia.org/wiki/Automatic_Storage_Management

    ASM creates extents out of datafiles, log-files, system files, control files and other database structures. The system then spreads these extents across all disks in a "diskgroup". One can think of a diskgroup in ASM as a Logical Volume Manager volume group — with an ASM file corresponding to a logical volume.

  3. ScyllaDB - Wikipedia

    en.wikipedia.org/wiki/ScyllaDB

    It supports the same protocols as Cassandra (CQL and Thrift) and the same file formats (SSTable), but is a completely rewritten implementation, using the C++20 language replacing Cassandra's Java, and the Seastar [1] asynchronous programming library replacing classic Linux programming techniques such as threads, shared memory and mapped files.

  4. Database abstraction layer - Wikipedia

    en.wikipedia.org/wiki/Database_abstraction_layer

    A database abstraction layer (DBAL [1] or DAL) is an application programming interface which unifies the communication between a computer application and databases such as SQL Server, IBM Db2, MySQL, PostgreSQL, Oracle or SQLite.

  5. Schema migration - Wikipedia

    en.wikipedia.org/wiki/Schema_migration

    A schema migration is performed on a database whenever it is necessary to update or revert that database's schema to some newer or older version. Migrations are performed programmatically by using a schema migration tool. When invoked with a specified desired schema version, the tool automates the successive application or reversal of an ...

  6. Inline assembler - Wikipedia

    en.wikipedia.org/wiki/Inline_assembler

    C variables are used directly while register names are quoted as string literals. [4] __asm in Microsoft Visual C++ (MSVC), Borland/Embarcadero C compiler, and descendants. This syntax is not based on ISO rules at all; programmers simply write ASM inside a block without needing to conform to C syntax.

  7. Lightning Memory-Mapped Database - Wikipedia

    en.wikipedia.org/wiki/Lightning_Memory-Mapped...

    Lightning Memory-Mapped Database (LMDB) is an embedded transactional database in the form of a key-value store. LMDB is written in C with API bindings for several programming languages . LMDB stores arbitrary key/data pairs as byte arrays, has a range-based search capability, supports multiple data items for a single key and has a special mode ...

  8. ISAM - Wikipedia

    en.wikipedia.org/wiki/ISAM

    Indexed Sequential Access Method (ISAM) is a method for creating, maintaining, and manipulating computer files of data so that records can be retrieved sequentially or randomly by one or more keys. Indexes of key fields are maintained to achieve fast retrieval of required file records in indexed files .

  9. Name mangling - Wikipedia

    en.wikipedia.org/wiki/Name_mangling

    32-bit compilers emit, respectively: _f _g@4 @h@4 In the stdcall and fastcall mangling schemes, the function is encoded as _name@X and @name@X respectively, where X is the number of bytes, in decimal, of the argument(s) in the parameter list (including those passed in registers, for fastcall).