How Oracle Works Essays

How Oracle Works Essays How Oracle Works Essay How Oracle Works Essay The following example illustrates an Oracle configuration where the user and associated server process are on separate machines (connected via a network). 1. An instance is currently running on the computer that is executing Oracle (often called the host or database server). 1. A computer running an application (a local machine or client workstation) runs the application in a user process. The client application attempts to establish a connection to the server using the proper Net8 driver. . The server is running the proper Net8 driver. The server detects the connection request from the application and creates a (dedicated) server process on behalf of the user process. 1. The user executes a SQL statement and commits the transaction. For example, the user changes a name in a row of a table. 1. The server process receives the statement and checks the shared pool for any shared SQL area that contains an identical SQL statement.If a shared SQL area is found, the server process checks the users access privileges to the requested data and the previously existing shared SQL area is used to process the statement; if not, a new shared SQL area is allocated for the statement so that it can be parsed and processed. 1. The server process retrieves any necessary data values from the actual datafile (table) or those stored in the system global area. 1. The server process modifies data in the system global area. The DBWn process writes modified blocks permanently to disk when doing so is efficient.Because the transaction committed, the LGWR process immediately records the transaction in the online redo log file. 1. If the transaction is successful, the server process sends a message across the network to the application. If it is not successful, an appropriate error message is transmitted. 1. Throughout this entire procedure, the other background processes run, watching for conditions that require intervention. In addition, the database server manages other users transactions and prevents contention between transactions that request the same data. These steps describe only the most basic level of operations that Oracle performs.

Euphemism and Euphuism

Euphemism and Euphuism Euphemism and Euphuism Euphemism and Euphuism By Maeve Maddox Political correctness is nothing new. People have desired to avoid calling a spade a spade since ancient times. People dont die, they pass away. Politicians dont commit crimes, they make mistakes. Married men dont commit adultery, they cheat. People dont fart, they pass wind. The word for this substitution of a less offensive word or phrase for a more specific or unpleasant one is euphemism. The word is from Greek euphemizein speak with fair words. The concept stemmed from the belief that the gods listened to human conversations and could be easily offended. People were careful not to boast of their wealth or accomplishments, so as not to prompt some god to reverse their fortunes as punishment. The maiden Arachne, for example, learned to her cost what came of boasting. For claiming that she was a more skillful weaver than the goddess Athena, Arachne was transformed into a spider. (To this day spiders bear her name.) The more horrific the deity, the more necessary it was for mortals to speak nicely about them. The Erinyes, female personifications of vengeance, were really gruesome. Like the Gorgon, they had snakes on their heads. Drops of blood oozed from their eyes. They flew after oath-breakers on the wings of bats. Watch the film Jason and the Argonauts to see the Furies in action. In order to stroke their egos, ancient Greeks referred to them as the Eumenides, the Kindly Ones. Modern mortals use euphemisms to avoid offending (or frightening, or informing) other people. The opposite of euphemism is dysphemism, an intentionally harsh word intended to shock or offend. The Coen brothers go a little overboard with the F word in The Big Lebowski. Euphuism is a term that describes a flowery, affected type of writing. Euphues is Greek for graceful, witty. Sixteenth century English author John Lyly wrote a book called Euphues: The Anatomy of Wyt (1578). The main character is a fashionable young man named Euphues. The style in which the book is written is full of convoluted sentences, euphemisms, rhetorical questions, alliteration, and references to classical literature. (In the 16th century educated people were assumed to be familiar with Greek and Latin literature.) Heres an example of Lylys euphuistic style. For the fun of seeing how English has changed since the 16th century, Ill give you both the original and a modernization. It happened thys young Impe to ariue at Naples (a place of more pleasure then profite, and yet of more profite then pietie) the very walles and windowes whereof shewed it rather to bà ©e the Tabernacle of Venus, then the Temple of Vesta. There was all things necessary and in redinesse that myght eyther allure the minde to luste, or entice the hearte to follye, a courte more mà ©ete for an Atheyst, then for one of Athens, for Ouid than for Aristotle, for a gracelesse louer then for a godly lyuer: more fitter for Paris than Hector, and mà ©eter for Flora then Diana. Modernization: It happened that this young playboy arrived at Naples (a place of more pleasure than educational value, and yet of more value than piety) the very walls and windows of the place showed it rather to be the place to occupy oneself in matters of sex than in those of chastity. In this place were to be found all things necessary and in readiness that might either tempt the mind to lust, or entice the heart to folly, a court more suitable for an atheist, than for a pious person, for Ovid [who wrote about love] than for Aristotle [who wrote about intellectual matters], for a promiscuous person than for someone who lives a godly life: more appropriate for Paris (he stole another mans wife] than Hector, [faithful husband of a faithful wife] and more suitable for Flora [goddess of the Spring and, presumably in Lylys mind, associated with mating] than Diana [virgin goddess]. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Expressions category, check our popular posts, or choose a related post below:50 Idioms About TalkingThe Six Spellings of "Long E"5 Examples of Insufficient Hyphenation