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Database tuning describes a group of activities used to optimize and homogenize the performance of a database.It usually overlaps with query tuning, but refers to design of the database files, selection of the database management system (DBMS) application, and configuration of the database's environment (operating system, CPU, etc.).
Major DBMSs, including SQLite, [5] MySQL, [6] Oracle, [7] IBM Db2, [8] Microsoft SQL Server [9] and PostgreSQL [10] support prepared statements. Prepared statements are normally executed through a non-SQL binary protocol for efficiency and protection from SQL injection, but with some DBMSs such as MySQL prepared statements are also available using a SQL syntax for debugging purposes.
The No. 10 envelope is the standard business envelope size in the United States. [6] PWG 5101.1 [7] also lists the following even inch sizes for envelopes: 6 × 9, 7 × 9, 9 × 11, 9 × 12, 10 × 13, 10 × 14 and 10 × 15. Envelopes accepted by the U.S. Postal Service for mailing at the price of a letter must be: Rectangular
The first result was the 1853 Nesbitt issues of stamped envelopes, which was named after the private contractor who produced them for the government. [2] When the different envelope sizes, knives, colors, dies to print the indicia, and denominations are combined, there are literally thousands of different stamped envelopes produced for the US. [3]
Expression templates have been found especially useful by the authors of libraries for linear algebra, that is, for dealing with vectors and matrices of numbers. Among libraries employing expression template are Dlib , Armadillo , Blaze , [ 5 ] Blitz++ , [ 6 ] Boost uBLAS, [ 7 ] Eigen , [ 8 ] POOMA, [ 9 ] Stan Math Library , [ 10 ] and xtensor ...
The problem concerns two envelopes, each containing an unknown amount of money. The two envelopes problem, also known as the exchange paradox, is a paradox in probability theory. It is of special interest in decision theory and for the Bayesian interpretation of probability theory. It is a variant of an older problem known as the necktie paradox.
A person using the envelope system, putting aside money into a ring binder of labelled plastic envelopes. The envelope system, also known as the envelope budgeting method or cash stuffing, is a popular personal budgeting method for visualizing and maintaining a flexible budget. The key idea is to prioritize cash income to meet separate ...
Opt-in, confirmed opt-in, double opt-in, opt-out refers to whether the people on a mailing list are given the option to be put in, or taken out, of the list. Confirmation (and "double", in marketing speak) refers to an email address transmitted e.g. through a web form being confirmed to actually request joining a mailing list, instead of being ...