Document
... entity sets becomes a superkey of the relation. Binary many-to-one relationship sets the primary key of the ‘many’ entity set becomes the relation’s primary key. One-to-one relationship sets primary key of either entity set. Many-to-many relationship sets union of the primary keys ...
... entity sets becomes a superkey of the relation. Binary many-to-one relationship sets the primary key of the ‘many’ entity set becomes the relation’s primary key. One-to-one relationship sets primary key of either entity set. Many-to-many relationship sets union of the primary keys ...
Database Design
... Archival files and tables contain master and transaction file records that have been deleted from on-line storage. • Records are rarely deleted; they are merely moved from on-line storage to off-line storage. • Archival requirements are dictated by government regulation and the need for subsequent ...
... Archival files and tables contain master and transaction file records that have been deleted from on-line storage. • Records are rarely deleted; they are merely moved from on-line storage to off-line storage. • Archival requirements are dictated by government regulation and the need for subsequent ...
Oracle NoSQL Database, 12.1.4.0.9 Enterprise Edition
... Copyright © 2016, Oracle and/or its affiliates. All rights reserved. This document is provided for information purposes only, and the contents hereof are subject to change without notice. This document is not warranted to be error-free, nor subject to any other warranties or conditions, whether expr ...
... Copyright © 2016, Oracle and/or its affiliates. All rights reserved. This document is provided for information purposes only, and the contents hereof are subject to change without notice. This document is not warranted to be error-free, nor subject to any other warranties or conditions, whether expr ...
Principles of Knowledge Discovery in Data Summary of Last
... • Data sources are often the operational systems, providing the lowest level of data. • Data sources are designed for operational use, not for decision support, and the data reflect this fact. • Multiple data sources are often from different systems run on a wide range of hardware and much of the so ...
... • Data sources are often the operational systems, providing the lowest level of data. • Data sources are designed for operational use, not for decision support, and the data reflect this fact. • Multiple data sources are often from different systems run on a wide range of hardware and much of the so ...
Configuring Automatic Database Space Expansion in
... SAP Adaptive Server Enterprise (SAP ASE). Here we will focus on deployments of SAP Business Suite applications running on SAP ASE. With automatic database expansion activated, administrators can further reduce the time needed for administration tasks. More importantly, interruptions to business user ...
... SAP Adaptive Server Enterprise (SAP ASE). Here we will focus on deployments of SAP Business Suite applications running on SAP ASE. With automatic database expansion activated, administrators can further reduce the time needed for administration tasks. More importantly, interruptions to business user ...
L - Fuzzy Structured Query Language
... of degrees of membership, indicating to what degree they belong to the set of young people. Zadeh [6, 32] introduced the concept of fuzziness representing a generalization, which goes beyond the classical set concept by mapping elements to the unit interval between 0 and 1 inclusively [9]. In other ...
... of degrees of membership, indicating to what degree they belong to the set of young people. Zadeh [6, 32] introduced the concept of fuzziness representing a generalization, which goes beyond the classical set concept by mapping elements to the unit interval between 0 and 1 inclusively [9]. In other ...
Why Open Source for Database Systems?
... going on all the time to identify and resolve issues. Compare this with a company offering a major proprietary database project; there may be thousands of people in QA at that company working on the same thing. But MySQL has 70,000 people downloading the product every day, using it, and reporting on ...
... going on all the time to identify and resolve issues. Compare this with a company offering a major proprietary database project; there may be thousands of people in QA at that company working on the same thing. But MySQL has 70,000 people downloading the product every day, using it, and reporting on ...
Exchange DAG backup and design best practices
... the backup process. The reason for this is that even though Exchange is not able to write to a frozen database or its transaction logs, it is able to store transactions in memory. Normally the backup process only requires a database to be frozen for about sixty seconds (or less). During this time th ...
... the backup process. The reason for this is that even though Exchange is not able to write to a frozen database or its transaction logs, it is able to store transactions in memory. Normally the backup process only requires a database to be frozen for about sixty seconds (or less). During this time th ...
Data Warehouse Design and Management: Theory and Practice
... 1) Relational databases: A database is called this way when the data elements and relationships that exist between them are recorded in tabular form. It is used both for transactional systems and DWs, but data are optimized differently because of different requirements that characterize the two type ...
... 1) Relational databases: A database is called this way when the data elements and relationships that exist between them are recorded in tabular form. It is used both for transactional systems and DWs, but data are optimized differently because of different requirements that characterize the two type ...
Database Design
... • An Entity is an object in the real world (or even imaginary worlds) about which we want or need to maintain information – Persons (e.g.: customers in a business, employees, authors) – Things (e.g.: purchase orders, meetings, parts, companies) Employee ...
... • An Entity is an object in the real world (or even imaginary worlds) about which we want or need to maintain information – Persons (e.g.: customers in a business, employees, authors) – Things (e.g.: purchase orders, meetings, parts, companies) Employee ...
Android.content.SharedPreferences … A developer can
... within other documents and arrays. BSON also contains extensions that allow representation of data types that are not part of the JSON spec. For example, BSON has a Date type and a BinData type. BSON can be compared to binary interchange formats, like Protocol Buffers. BSON is more "schema-less" tha ...
... within other documents and arrays. BSON also contains extensions that allow representation of data types that are not part of the JSON spec. For example, BSON has a Date type and a BinData type. BSON can be compared to binary interchange formats, like Protocol Buffers. BSON is more "schema-less" tha ...
Transferring Data with DB Connect
... SAP-kernel based systems, such as the BW system, work on the assumption that the used database was created with the code page cp850, using the sort sequence ‘bin’. The source system configuration may be differ from this. Diverging sort orders may result in operations for sample search ( like) and ar ...
... SAP-kernel based systems, such as the BW system, work on the assumption that the used database was created with the code page cp850, using the sort sequence ‘bin’. The source system configuration may be differ from this. Diverging sort orders may result in operations for sample search ( like) and ar ...
Indexing Relational Database Content Offline for
... Figure 5 outlines the text object construction (TOC) algorithm. To construct the text object for a root tuple r of root relation R, we start with r. Logically we perform a breadth-first traversal of the schema graph. For all neighbor relations of R, we select those tuples that join with r, based on ...
... Figure 5 outlines the text object construction (TOC) algorithm. To construct the text object for a root tuple r of root relation R, we start with r. Logically we perform a breadth-first traversal of the schema graph. For all neighbor relations of R, we select those tuples that join with r, based on ...
Chapter Prerequisites
... You can also build an expression in a query's SELECT clause by using one or more of SQL's built-in functions. A function takes zero, one, or multiple arguments and returns a single value. There are two general types of SQL functions that you can use with queries: single-row functions and group funct ...
... You can also build an expression in a query's SELECT clause by using one or more of SQL's built-in functions. A function takes zero, one, or multiple arguments and returns a single value. There are two general types of SQL functions that you can use with queries: single-row functions and group funct ...
CC2
... The highest level in the example hierarchy is the entire database. The levels below are of type area, file or relation and record in that order. Database System Concepts ...
... The highest level in the example hierarchy is the entire database. The levels below are of type area, file or relation and record in that order. Database System Concepts ...
November 28°, 2015
... Controls whether the cleanup process will be automatically activated when total amount of data gets close to maximum size. ...
... Controls whether the cleanup process will be automatically activated when total amount of data gets close to maximum size. ...
Chapter 4
... You can also build an expression in a query's SELECT clause by using one or more of SQL's built-in functions. A function takes zero, one, or multiple arguments and returns a single value. There are two general types of SQL functions that you can use with queries: single-row functions and group funct ...
... You can also build an expression in a query's SELECT clause by using one or more of SQL's built-in functions. A function takes zero, one, or multiple arguments and returns a single value. There are two general types of SQL functions that you can use with queries: single-row functions and group funct ...
slides
... estimating sizes of intermediate results are presented. • This classical approach works well in some cases, but is unreliable in general. • The modern approach is based on maintaining suitable statistics summarizing the data. (Focus of lecture.) Database Tuning, Spring 2007 ...
... estimating sizes of intermediate results are presented. • This classical approach works well in some cases, but is unreliable in general. • The modern approach is based on maintaining suitable statistics summarizing the data. (Focus of lecture.) Database Tuning, Spring 2007 ...
Preventing, Detecting, and Repairing Block Corruption: Oracle
... A data block is corrupted when it is not in a recognized Oracle Database format, or its contents are not internally consistent. Data block corruption can damage internal Oracle control information or application and user data, leading to crippling loss of critical data and services. Block corruption ...
... A data block is corrupted when it is not in a recognized Oracle Database format, or its contents are not internally consistent. Data block corruption can damage internal Oracle control information or application and user data, leading to crippling loss of critical data and services. Block corruption ...
The Choice of SAS Software as the Application Development Tool for Your CANDA
... You stin have to do something with the data after a great interface is made to it Important value in a CANDA stems from analysis conducted on data subsets created from queries. This includes both summary count tables and statistical procedures. Many or most development tools do not provide even simp ...
... You stin have to do something with the data after a great interface is made to it Important value in a CANDA stems from analysis conducted on data subsets created from queries. This includes both summary count tables and statistical procedures. Many or most development tools do not provide even simp ...
RDBMS - E
... DBMS vendors frequently upgrade their products by adding new functionality. Such new features often come bundled in new upgrade versions of the software. Some of these versions require hardware upgrades. Not only do the upgrades themselves cost money, but it also costs money to train database users ...
... DBMS vendors frequently upgrade their products by adding new functionality. Such new features often come bundled in new upgrade versions of the software. Some of these versions require hardware upgrades. Not only do the upgrades themselves cost money, but it also costs money to train database users ...
original - Kansas State University
... Functions/procedures can be written in SQL itself, or in an external programming language Functions are particularly useful with specialized data types such as images and geometric objects Example: functions to check if polygons overlap, or to compare images for similarity ...
... Functions/procedures can be written in SQL itself, or in an external programming language Functions are particularly useful with specialized data types such as images and geometric objects Example: functions to check if polygons overlap, or to compare images for similarity ...
XML
... XML Data v.s. E/R, ODL, Relational • Q: is XML better or worse ? • A: serves different purposes – E/R, ODL, Relational models: • For centralized processing, when we control the data ...
... XML Data v.s. E/R, ODL, Relational • Q: is XML better or worse ? • A: serves different purposes – E/R, ODL, Relational models: • For centralized processing, when we control the data ...