mum computer science

cs:app-2.1 Information Store Unknown: knowledge: The word length indicates the nominal size of the pointer data. The most important system parameter determined by the word length is the maximum size of the virtual address space Char types can also be used to store integer values Using an integer type of deterministic size is the best way for programmers to accurately control data representation The pattern of arranging an object byte in a machine for a normal user is a small-ended

The Zen of Python, by Tim PetersBeautiful is better than ugly.Explicit is better than implicit.Simple is better than complex.Complex is better than complicated.Flat is better than nested.Sparse is better than dense.Readability counts.Special cases aren ' t special enough to break the rules.Although practicality beats purity.Errors should never pass silently.Unless explicitly silenced.In the face of ambiguity, refuse the temptation to guess.There should is one--and preferably only one--obvious th

The set of operations that make up a single logical unit of work is called a transaction (transaction).Even if there is a failure, the database system must ensure that the transaction is executed correctly-either the entire transaction is executed or the operation belonging to the transaction is not executed.1. Concept of transactionsTransactions are typically caused by advanced data manipulation languages or programming languages that access written user programs through JDBC or ODBC embedded d