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In a SQL database, a record is typically called a "row". The introduction of granular (subset) locks creates the possibility for a situation called deadlock. Deadlock is possible when incremental locking (locking one entity, then locking one or more additional entities) is used. To illustrate, if two bank customers asked two clerks to obtain ...
For example, LAST_INSERT_ID() for MySQL. Using a unique combination of elements from the original SQL INSERT in a subsequent SELECT statement. Using a GUID in the SQL INSERT statement and retrieving it in a SELECT statement. Using the OUTPUT clause in the SQL INSERT statement for MS-SQL Server 2005 and MS-SQL Server 2008.
A schematic picture of the skip list data structure. Each box with an arrow represents a pointer and a row is a linked list giving a sparse subsequence; the numbered boxes (in yellow) at the bottom represent the ordered data sequence. Searching proceeds downwards from the sparsest subsequence at the top until consecutive elements bracketing the ...
Optimistic concurrency control (OCC), also known as optimistic locking, is a non-locking concurrency control method applied to transactional systems such as relational database management systems and software transactional memory. OCC assumes that multiple transactions can frequently complete without interfering with each other.
The following tables compare general and technical information for a number of relational database management systems.Please see the individual products' articles for further information.
The legislation would also include $2.5 trillion in cuts to net mandatory spending, aimed at satisfying conservative members who oppose increasing the debt ceiling without accompanying cuts.
WASHINGTON — For Connecticut Attorney General William Tong, President-elect Donald Trump’s pledge to end birthright citizenship is more than just a provocative anti-immigrant policy likely to ...
The Trump Organization said Monday it has leased its brand to two new real estate projects in Saudi Arabia just weeks before President-elect Donald Trump returns to the White House. It will ...