Download E-books MySQL Pocket Reference: SQL Functions and Utilities (Pocket Reference (O'Reilly)) by George Reese (27-Jul-2007) Paperback PDF

Read or Download MySQL Pocket Reference: SQL Functions and Utilities (Pocket Reference (O'Reilly)) by George Reese (27-Jul-2007) Paperback PDF

Best Computing books

What to Think About Machines That Think: Today's Leading Thinkers on the Age of Machine Intelligence

Weighing in from the state-of-the-art frontiers of technology, today’s such a lot forward-thinking minds discover the increase of “machines that imagine. ”Stephen Hawking lately made headlines by means of noting, “The improvement of complete synthetic intelligence may possibly spell the tip of the human race. ” Others, conversely, have trumpeted a brand new age of “superintelligence” within which clever units will exponentially expand human capacities.

How to Do Everything: Windows 8

Faucet into the facility of home windows eight Maximize the flexible positive aspects of home windows eight on all of your units with support from this hands-on advisor. realize the best way to customise settings, use the hot begin display and Charms bar, paintings with gestures on a touchscreen computing device, manage and sync information within the cloud, and arrange a community.

Smart Machines: IBM's Watson and the Era of Cognitive Computing (Columbia Business School Publishing)

We're crossing a brand new frontier within the evolution of computing and getting into the period of cognitive structures. The victory of IBM's Watson at the tv quiz exhibit Jeopardy! printed how scientists and engineers at IBM and in different places are pushing the limits of technological know-how and expertise to create machines that experience, research, cause, and have interaction with humans in new how one can offer perception and recommendation.

The Elements of Computing Systems: Building a Modern Computer from First Principles

Within the early days of machine technology, the interactions of undefined, software program, compilers, and working approach have been uncomplicated adequate to permit scholars to determine an total photograph of ways desktops labored. With the expanding complexity of desktop expertise and the ensuing specialization of information, such readability is usually misplaced.

Additional info for MySQL Pocket Reference: SQL Functions and Utilities (Pocket Reference (O'Reilly)) by George Reese (27-Jul-2007) Paperback

Show sample text content

DO DO expression [, expression, ... ] Executes expressions with out returning any effects. SQL | fifty nine DROP DATABASE DROP DATABASE [IF EXISTS] identify completely eliminate a database from MySQL. when you execute this assertion, not one of the tables or facts that made up the database can be found. All aid records for the database are deleted from the filesystem. The variety of documents deleted can be back to the person. This assertion is reminiscent of operating the mysqladmin drop application. As with working mysqladmin, you want to be the executive consumer for MySQL (usually root or mysql) to accomplish this assertion. you'll use the IF EXISTS clause to avoid any blunders message that might consequence from an try and drop a nonexistent database. DROP occasion DROP occasion [IF EXISTS] identify Drops the desired occasion from MySQL. you want to have the development privilege so as to drop an occasion. DROP functionality DROP functionality [IF EXISTS] identify Will get rid of a user-defined or kept functionality from the operating MySQL server method. this doesn't really delete the library dossier containing the functionality. you'll upload the functionality back at any time utilizing the CREATE functionality assertion. within the present implementation, DROP functionality easily gets rid of the functionality from the functionality desk in the MySQL database. This desk retains tune of all lively services. DROP INDEX DROP INDEX idx_name ON tbl_name presents compatibility with different SQL implementations. In older models of MySQL, this assertion does not anything. As of three. 22, this assertion is similar to adjust desk ... DROP INDEX. to accomplish the DROP INDEX assertion, you need to have decide upon, INSERT, DELETE, replace, CREATE, and DROP privileges for the desk in query. 60 | MySQL Pocket Reference DROP approach DROP strategy [IF EXISTS] identify gets rid of the desired approach from the database. you want to have adjust regimen permissions for the approach so one can execute this name. DROP desk DROP desk [IF EXISTS] identify [, name2, ... ] [RESTRICT | CASCADE] Will erase a whole desk completely. within the present implementation, MySQL easily deletes the records linked to the desk. As of three. 22, you'll specify IF EXISTS to make MySQL no longer go back an blunders in the event you try to eliminate a desk that doesn't exist. The limit and CASCADE keyword phrases do not anything; they exist exclusively for ANSI compatibility. you need to have DELETE privileges at the desk to exploit this assertion. DROP TABLESPACE DROP TABLESPACE tablespace ENGINE = engine Drops the desired tablespace. The tablespace mustn't ever comprise any info documents. you have to accordingly ensure you get rid of all facts records first by utilizing the adjust TABLESPACE command. DROP set off DROP set off [IF EXISTS] set off Drops the desired set off from MySQL. whilst upgrading from MySQL five. zero. 10 and previous to any later model, you need to first drop your triggers ahead of the improve after which re-add them. DROP consumer DROP consumer person Drops a consumer from MySQL together with his permissions. SQL | sixty one DROP VIEW DROP VIEW [IF EXISTS] view [RESTRICT | CASCADE] Drops the desired view from the method.

Rated 4.17 of 5 – based on 31 votes