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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.
One can refer to the inputs to a join as the "outer" and "inner" join operands, or "left" and "right", respectively. In the case of nested loops, for example, the database system will scan the entire inner relation for each row of the outer relation. One can classify query-plans involving joins as follows: [12] left-deep
DeskMate Worksheet 0F 53 49 42 45 4C 49 55 53 ␏SIBELIUS: 0 sib Sibelius Music - Score file 23 20 4D 69 63 72 6F 73 6F 66 74 20 44 65 76 65 6C 6F 70 65 72 20 53 74 75 64 69 6F # Microsoft Developer Studio: 0 dsp Microsoft Developer Studio project file 23 21 41 4D 52 #!AMR: 0 amr
A query includes a list of columns to include in the final result, normally immediately following the SELECT keyword. An asterisk ("*") can be used to specify that the query should return all columns of the queried tables. SELECT is the most complex statement in SQL, with optional keywords and clauses that include:
For example, probiotics—which are usually sold in the vitamin aisle—sometimes require refrigeration. Also, capsules that contain liquid or oil may deteriorate more quickly than those that don’t.
In the above example, the application might supply the values "bike" for the first parameter and "10900" for the second parameter, and then later the values "shoes" and "7400". The alternative to a prepared statement is calling SQL directly from the application source code in a way that combines code and data.
A stowaway who made it all the way from New York to Paris on a flight is expected to be brought back to the U.S. Wednesday afternoon escorted by French security officials.