introduction to oracle database

... have ever attended, to excite them to learn, and to make them want to come back for more • To give you some tips and techniques to help you vary your lecture style, avoid monotony in classes, and ... respective owners. Trang 3Introduction Introduction to Oracle: SQL and PL/SQL is often the first course that many Oracle students attend You might be their first contact with any Oracle personnel At ... want to draw an analogy to the DOS ? and * wildcards to help understanding Additional Example SELECT * FROM emp WHERE hiredate LIKE ‘ -JAN%’; Using the LIKE Operator • Use the LIKE operator to

Ngày tải lên: 24/01/2014, 10:20

... AN INTRODUCTION TO HYPERION DATABASE Page 2 of 23 hyperion.doc Desktop Screen Hyperion Enterprise is a database that contains data that can be used to develop and ... windows 2000, a setting needs to be adjusted. Contact your systems administrator to make this change. To collapse the list, click on the minus sign next to "Total ISU by Unit." Then ... Excel interface that provides a method to pull numbers from the Hyperion database into Excel. The accounting information is entered into the Hyperion database at the central location (the Controller's

Ngày tải lên: 07/03/2014, 14:20

... the instructor and the administrator is concerned with only the portion of database that is relevant to the administrator These portions of the database, which are viewed, by the instructor and ... power of desktop computers, multi-user database systems are now available that support a small group of users to connect to these desktop computers and access data concurrently These database systems ... information about the data to be stored, and designing and maintaining the database and its security The database must be designed and maintained to provide the right information to the authorized people

Ngày tải lên: 01/08/2014, 09:22

... Trang 1Introduction to Oracle Access Manager Trang 2After completing this lesson, you should be able to: Management Suite Management products Trang 3Oracle Identity ManagementOracle + Sun ... customers to choose the product for which they want to create database schema and creates the schema after providing the database details. – OAM 11g is a J2EE application that deploys into a ... Trang 19Oracle Coherence in Session ManagementOracle Coherence: latencies including an optional database store (Enables failover and reconciliation) Coherence OAM Server Session Data Store Trang

Ngày tải lên: 25/11/2016, 21:13

... an update operator; “+” (addition) is a read-only operator An update operator has at least one parameter that is subject to update; a read-only operator doesn’t A read-only operator, when invoked, ... referred to as the type of the operator) 2.5 Read-only Operators in Tutorial D In computer languages we distinguish between operators that are defined as part of the language and operators that ... the Tutorial D operators used in this book except where explicitly stated to the contrary • Rel supports Tutorial D user-defined operators. • Rel additionally supports user-defined operators

Ngày tải lên: 15/01/2021, 10:05

... report V – User Intructors A Authors 1 How to create Switch Board Step 1: Using button XXX Step 2: Click to the position that we want to put the button After creating thebutton, click the right ... Select ‘Run Query’ Trang 13Select Save and name query as “qryTotalStockvalueByAuthor”Figure 4: qrytotalstockvaluebyAuthor 3-To display Total Value Published Select Create ==> Select Query Design ... tables to display: Author, Books and Publishers.+ Create 6 queries to display: Books by Author 15 in 2002; Books published by KD; SearchBook; Total amount by Author; Total Stock Value by Author; Total

Ngày tải lên: 30/05/2022, 09:43

... programmers to organize largedatabases (Touretzky, 1986) They have the advantage that information common to Trang 13many items in the database need not be stored with every item In other words, databaseexperts ... linguists at Princeton University undertook todevelop a lexical database along lines suggested by these investigations (Miller, 1985).The initial idea was to provide an aid to use in searching ... arises: what is to be done with ponderous, massive, and airy, which seem to have no appropriate antonyms? The simple answer seems to be to introduce a similarity pointer and use it toindicate that

Ngày tải lên: 23/03/2014, 16:20

... CS564) ❖ A Database Management System (DBMS) is a software package designed to store and manage databases Trang 3Why Use a DBMS?Trang 4Why Study Databases??– at the “low end”: scramble to webspace ... Trang 1Introduction to Database SystemsModule 1, Lecture 1 Instructor: Raghu Ramakrishnan raghu@cs.wisc.edu UW-Madison Trang 2What Is ... Atomicityeven if system crashes in the middle of a Xact ❖ Idea: Keep a log (history) of all actions carried out by the DBMS while executing a set of Xacts: – Before a change is made to the database,

Ngày tải lên: 30/03/2014, 13:20

... Shut the database down As oracle on node1 [oracle@node1 oracle]$ export ORACLE_HOME=/opt/oracle/product/11.1/si [oracle@node1 oracle]$ export ORACLE_SID=ERI [oracle@node1 oracle]$ $ORACLE_HOME/bin/sqlplus ... using an SPFILE: As oracle on node1 [oracle@node1 oracle]$ export ORACLE_HOME=/opt/oracle/product/11.1/si [oracle@node1 oracle]$ export ORACLE_SID=ERI [oracle@node1 oracle]$ $ORACLE_HOME/bin/sqlplus ... Mining options [oracle@node1 oracle]$ export ORACLE_HOME=/opt/oracle/product/11.1/si [oracle@node1 oracle]$ scp $ORACLE_HOME/dbs/initERI.ora node2:/$ORACLE_HOME/dbs/ [oracle@node1 oracle]$ ssh

Ngày tải lên: 30/03/2014, 13:20

... unordered, left to right 3 Tuples are unordered, top to bottom 4 There are no duplicate tuples Now justify them: 1 Regarding normalization: You should be aware that the history here is somewhat ... you might want to point out that null is not a value, so right here we have an overwhelming argument against nulls (as usually understood) • There's no left-to-right ordering to the components ... implementation is required to assign names to otherwise anonymous columns, but those names are implementation-dependent (they vary from system to system, possibly even from release to release or even

Ngày tải lên: 06/08/2014, 01:21

... input to the join, meaning there's less data to be scanned to do the join, and the result of the join is smaller as well In fact, the second expression might allow the result of the join to be ... corresponds more directly to the semijoin formulation than to the join one Analogous remarks apply to semidifference Trang 4Regarding extend: EXTEND is one of the most useful operators of all Consider ... aggregate operators COUNT, SUM, etc., are first mentioned Observe the important differences (both syntactic and semantic) in the treatment of such operators between Tutorial D and SQL Note too the

Ngày tải lên: 06/08/2014, 01:21

... TEACHER to OFFERING, ENROLLMENT to OFFERING, and OFFERING to COURSE are all properly maintained, the referential constraints from TEACHER to COURSE and ENROLLMENT to COURSE will be maintained automatically ... particular, it applies to views──forward pointer to Chapter 10) Explain database predicates and The Golden Rule (second and final version): No update operation must ever assign to any database a value ... predicate is thereby reduced to a proposition──and that proposition is then required to evaluate to TRUE The parameters in question stand for relvars Don't get into it yet, but the predicate

Ngày tải lên: 06/08/2014, 01:21

... self-explanatory (though project is a little trickier than the operators covered prior to this point) Note: The subsection says: "An attempt to update the SC tuple (S1,London) to (S2,London) ... applies to INSERT: a Inserting the tuple (s,sn,st,sc,rt) into the join is equivalent to inserting the tuple (s,sn,st,sc) into S (unless it's already present) and inserting the tuple (s,rt) into ... ubiquitous that the unqualified term view has come to mean, almost always, a "materialized view" specifically! And so we no longer have a good term to use when we want to refer to a view

Ngày tải lên: 06/08/2014, 01:21

... instructor doesn't want to get too deeply into formal proofs and the like Indeed, the chapter is included, in part, just to show that there really is some mathematical rigor underlying relational database ... specifically The "right" way to do database design is to do a clean logical design first, and then, as a separate and subsequent step, to map that logical design into whatever physical structures ... the FD notion might have a role to play in logical database Trang 6design──we'll be wanting to get rid of redundancy and therefore we'll be wanting to find ways to get rid of certain FDs) • Some

Ngày tải lên: 06/08/2014, 01:21

... possible to "spot" a BCNF decomposition──only that it's often possible to do so in practical cases To revert to the company database example: As a subsidiary exercise──not much to do with ... candidate key, together with an attribute for every box pointed to from the original box (and no other attributes) Of course, some refinement is needed to this loose statement in order to take care ... of the exercise and those corresponding to reasonable semantic assumptions (stated explicitly below) The attribute names are intended to be self-explanatory ╔════════════════════════════════════════════════════════════════╗

Ngày tải lên: 06/08/2014, 01:21

... applies to the design of all "expressible" databases, not just to the "real" database──The Principle of Database Relativity at work once again Of course, analogous remarks apply to ... in DK/NF, then R is automatically in 5NF (and hence 4NF, BCNF, etc.) as well However, it's wrong to think of DK/NF as another step in the progression from 1NF to 2NF to to 5NF, because 5NF is ... earlier editions complained that database design issues were treated too late But it's my feeling that students aren't ready to design databases properly or to appreciate design issues fully

Ngày tải lên: 06/08/2014, 01:21

... in the morning The solution to the problem is to introduce a mechanism (door locks) and a protocol for using that mechanism (lock the bathroom door if you don't want to be disturbed) ────────── ... Self-explanatory 16.5 Deadlock Mostly self-explanatory Explain the Wait-For Graph (it isn't discussed in detail in the text because it's fairly obvious, not to say trivial; see the answer to Exercise ... mention locks, as such, at all──deliberately The idea is to allow an implementation to use some nonlocking scheme if it wants to.) Explain phantoms and the basic idea (only) of predicate locking

Ngày tải lên: 06/08/2014, 01:21

... what are object systems going to do?) 18.5 Database Statistics Self-explanatory, pretty much (but see Exercise 18.15) Be sure to mention RUNSTATS (or some counterpart to RUNSTATS) 18.6 A Divide-and-Conquer ... (see the annotation to reference [18.5]) Some brief discussion of parallelism should also be included (see the annotation to reference [18.56]; forward pointer to distributed databases perhaps?) ... Motivating Example Self-explanatory Drive the message home by stressing the "human factors" aspect: If the original unoptimized query took three hours to run, the final version will run

Ngày tải lên: 06/08/2014, 01:21

... representation, together with a corresponding selector operator and a corresponding set of THE_ operators (or logical equivalents of same) ■ "=" and ":=" operators ■ Certain type ... inheritance at all (Of course, it's true that the topics are somewhat orthogonal──data doesn't have to be in a database for the concept of inheritance to apply to it──but we might say the same about the ... operators that applied to values of type A would be a subset of the set of operators that applied to values of type B and vice versa (and, of course, the set of constraints that applied to values

Ngày tải lên: 06/08/2014, 01:21

... section.) • Keys often include a temporal component • The database tends to be large • The database tends to be heavily indexed • The database often involves various kinds of controlled redundancy ... tends to be driven by physical considerations much more than by logical ones──indeed, it tends to blur the logical vs physical distinction considerably." Caveat lector We use SQL, not Tutorial ... begin to believe the world is two-dimensional You think you can get anything into the rows and columns of a table" [Douglas Barry, Executive Director, ODMG] • "There is simply no way to

Ngày tải lên: 06/08/2014, 01:21