GRID DATABASE DESIGN
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ORACLE ENTERPRISE MANAGER 10G GRID CONTROL IMPLEMENTATION GUIDE P2
Order the Media Pack
■ Alternatively, order the latest Enterprise Manager 10g Grid
Control Media Pack for a particular platform from the Oracle Store for a nominal fee. To order the Media Pack, go to http://oraclestore.oracle.com, choose your country, click the Media Packs link on the l[r]
■ Alternatively, order the latest Enterprise Manager 10g Grid
Control Media Pack for a particular platform from the Oracle Store for a nominal fee. To order the Media Pack, go to http://oraclestore.oracle.com, choose your country, click the Media Packs link on the l[r]
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BEGINNING DATABASE DESIGN P12 POT
❑ Joins — A join query retrieves records from multiple tables, joining tables based on related field
values between those tables. Typically, relationships are based on referential integrity established between primary and foreign keys, in two tables. Perhaps the most significant factor in making q[r]
values between those tables. Typically, relationships are based on referential integrity established between primary and foreign keys, in two tables. Perhaps the most significant factor in making q[r]
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BEGINNING DATABASE DESIGN- P16 DOC
Denormalizing BCNF
A table is allowed to have only one possible candidate key. A candidate key is a candidate to be a primary key. Personally, I have found BCNF a bit of an odd one, even a little obsessive. Go back to Chapter 4 and take a quick peek at Figure 4-33. In Figure 4-33, it should be c[r]
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BEGINNING DATABASE DESIGN- P15 PDF
Referential Integrity
In Figure 10-2, you cannot delete a SELLER record without deleting all the seller’s listings first. If the
seller is deleted, their listings become orphaned records. An orphaned record is term applied to a record
not findable within the logical table structure of a da[r]
In Figure 10-2, you cannot delete a SELLER record without deleting all the seller’s listings first. If the
seller is deleted, their listings become orphaned records. An orphaned record is term applied to a record
not findable within the logical table structure of a da[r]
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BEGINNING DATABASE DESIGN- P14 POT
Figure 9-28: Adjusting the data warehouse database model ERD for an online auction house.
Figure 9-24 described the analysis and design process of database modeling as being an iterative one. Steps can be repeated, in any order, and adjustments can be made during the entire[r]
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BEGINNING DATABASE DESIGN- P11 DOCX
Figure 7-7: The SALE fact-dimensional structure denormalized into a star schema.
What does all this prove? Not much, you might say. On the contrary, two things are achieved by using fact-dimensional structures and star schemas:
❑ Figure 7-1 shows a highly normalized table structure, useful fo[r]
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BEGINNING DATABASE DESIGN- P10 POTX
Many databases have specialized database objects for certain types of tasks. Some specialized objects allow for physical copies of data, copying data into a denormalized form.
❑ Materialized views — Materialized views are allowed in many larger relational databases. These
objects are comm[r]
❑ Materialized views — Materialized views are allowed in many larger relational databases. These
objects are comm[r]
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BEGINNING DATABASE DESIGN P9 PPT
The ability to break things into small parts to solve small problems is very important when building anything with computers, including relational database models. Object-oriented design is the most modern of software design methodologies. Breaking things into small things is wh[r]
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BEGINNING DATABASE DESIGN- P20 PPT
COMMIT , ROLLBACK — and a few others. In other words, some database engines go to town with stored procedure coding and others severely restrict it. It’s not a matter of preference or lack of development. It’s more of how the original writers of these various database engines, picture[r]
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BEGINNING DATABASE DESIGN P23 DOCX
perhaps even a single partition. This is also known as partition pruning.
Performance — Performance is a measure of how fast a database services applications, and ultimately end-users.
Planning — A process whereby a project plan and timeline are used for larger projects. Project plans typ[r]
Performance — Performance is a measure of how fast a database services applications, and ultimately end-users.
Planning — A process whereby a project plan and timeline are used for larger projects. Project plans typ[r]
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BEGINNING DATABASE DESIGN P22 PPSX
Composite key — A primary key, unique key, or foreign key consisting of more than one field.
Concurrent — More than one process executed at the same time means two processes are executing simultaneously, or more than one process accessing the same piece of data at the same time.
Configuration —[r]
Concurrent — More than one process executed at the same time means two processes are executing simultaneously, or more than one process accessing the same piece of data at the same time.
Configuration —[r]
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BEGINNING DATABASE DESIGN- P19 POT
How It Works
In the previous chapter, it was argued that musicians, bands, discography, and venues are effectively dimensional in nature. The problem is that these dimensions have potentially such large quantities of records as to force them to be factual. This was, of course, incorrect. Look on[r]
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BEGINNING DATABASE DESIGN P18 DOC
The biggest and most blatantly obvious issue when examining the star schema in Figure 11-4 shows something really unusual. “Unusual” in a database model usually means “nonstandard” (“nonconform- ing” to acceptable practices), and probably completely incorrect! The BIDDER dimensional table[r]
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BEGINNING DATABASE DESIGN- P17 POTX
Denormalization is rarely effective for OLTP database models for anything between 1NF and 3NF; however (and this very important), remember that previously in this chapter you read about layers of normalization beyond 3NF (BCNF, 4NF, 5NF and DKNF). None of these intensive Normal Forms have s[r]
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BEGINNING DATABASE DESIGN- P7 PPS
Figure 4-25: A 3NF transformation amalgamating duplication into a new table.
The transformation in Figure 4-25 could be conceived as being two 2NF transformations because a many-to-one relationship is creating a more static table by creating the FOREIGN_EXCHANGE table.
Obviously, the 3NF tran[r]
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TÀI LIỆU MCGRAW-HILL - DATABASES A BEGINNER_S GUIDE (2009)01 PPTX
The External Layer
The external layer or external model is the second layer of abstraction in the database. This layer is composed of the user views discussed earlier, which are collectively called the subschema . In this layer, the database users (application programs as well[r]
The external layer or external model is the second layer of abstraction in the database. This layer is composed of the user views discussed earlier, which are collectively called the subschema . In this layer, the database users (application programs as well[r]
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JQUERY & RESPONSIVE WEB DESIGN: SHORT GUIDE BY DAVE RUPERT
TRANG 18 RESPONSIVE WEB DESIGN Tips to winning at - Embrace the flexible grid.. - Use EM units for font-size.[r]
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APPLIED MATHEMATICS FOR DATABASE PROFESSIONALS PHẦN 5 PPS
Specifying the Example Database Design
We’ll demonstrate the application of the theory presented in Part 1 of this book through an elaborate treatment of a database design that consists of ten table structures.
We comment up front that this database design
We’ll demonstrate the application of the theory presented in Part 1 of this book through an elaborate treatment of a database design that consists of ten table structures.
We comment up front that this database design
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SLIDE TRUY VẤN NÂNG CAO
TRANG 6 Database Design and Implementation with SQL Server 2000 / Session 5 / 6 of 33 TRANG 7 TRANG 8 TRANG 9 TRANG 10 TRANG 11 Database Design and Implementation with SQL Server 2000 / [r]
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HƯỚNG DẪN HỌC MICROSOFT SQL SERVER 2008 PART 167 PPTX
Each base camp may be responsible for multiple tours. A tour is a prearranged, repeatable experience. Each time the tour is offered, its referred to as an . An event will have one lead guide, who is responsible for the safety and enjoyment of the guests. Other guides may also come along as needed. A[r]
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