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A database dump contains a record of the table structure and/or the data from a database and is usually in the form of a list of SQL statements ("SQL dump"). A database dump is most often used for backing up a database so that its contents can be restored in the event of data loss.
At the linked site experimental dumps and the script itself can be downloaded. As an example it was used to generate these copies of English WikiPedia 24 April 04, Simple WikiPedia 1 May 04(old database) format and English WikiPedia 24 July 04 Simple WikiPedia 24 July 04, WikiPedia Francais 27 Juillet 2004 (new format).
Query by Example (QBE) is a database query language for relational databases. It was devised by Moshé M. Zloof at IBM Research during the mid-1970s, in parallel to the development of SQL . [ 1 ] It is the first graphical query language, using visual tables where the user would enter commands, example elements and conditions.
MySQL (/ ˌ m aɪ ˌ ɛ s ˌ k juː ˈ ɛ l /) [5] is an open-source relational database management system (RDBMS). [5] [6] Its name is a combination of "My", the name of co-founder Michael Widenius's daughter My, [7] and "SQL", the acronym for Structured Query Language.
For example, this problem is known to happen in versions of Windows using FAT32 or Linux 2.2 (which for example is still the default kernel in Debian's current stable "woody" release). To resolve this problem, you need to upgrade to a file system which supports files larger than 2 gigabytes (such as Linux 2.4 or later).
It can sometimes be useful to run queries against this database to extract information that is otherwise hard to find. For example: Articles with H.M.S. in their title that have not been edited for 12 months. Redirects with fewer than 20 incoming links that redirect to categories; All red links on pages within the scope of a particular WikiProject
Investment tactics often require big buy-ins and high fees. New tech is lowering the price of entry in fields like direct indexing and private markets.
The query evaluation, and thus query containment, is LOGCFL-complete and thus in polynomial time. [9] Acyclicity of conjunctive queries is a structural property of queries that is defined with respect to the query's hypergraph : [ 6 ] a conjunctive query is acyclic if and only if it has hypertree-width 1.