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Additionally there is a single-row version, UPDATE OR INSERT INTO tablename (columns) VALUES (values) [MATCHING (columns)], but the latter does not give you the option to take different actions on insert versus update (e.g. setting a new sequence value only for new rows, not for existing ones.)
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. Using an INSERT statement with RETURNING clause for Oracle.
Actual SQL implementations normally use other approaches, such as hash joins or sort-merge joins, since computing the Cartesian product is slower and would often require a prohibitively large amount of memory to store. SQL specifies two different syntactical ways to express joins: the "explicit join notation" and the "implicit join notation".
A Canadian woman was arrested after trying to smuggle over 20 pounds of methamphetamine through a New Zealand airport, authorities said. The illicit drugs were disguised as Christmas presents, New ...
In computer science, the log-structured merge-tree (also known as LSM tree, or LSMT [1]) is a data structure with performance characteristics that make it attractive for providing indexed access to files with high insert volume, such as transactional log data. LSM trees, like other search trees, maintain key-value pairs. LSM trees maintain data ...
Matthew Perry is showing Lisa Kudrow signs more than a year after his death.. When Drew Barrymore asked if Kudrow had ever stolen anything from set on the Jan. 7 episode of The Drew Barrymore Show ...
A college football player with a history of sexual assault raped a 17-year-old girl aboard a Carnival Cruise ship as she was celebrating the holidays with her family — before heartlessly asking ...
Merge (linguistics), a basic syntactic operation in generative syntax in the Minimalist Program Merger (politics) , the combination of two or more political or administrative entities Merger (phonology) , phonological change whereby originally separate phonemes come to be pronounced exactly the same