PostGIS - Installation to Use
... • Manipulates spatial objects just like other objects in the database ...
... • Manipulates spatial objects just like other objects in the database ...
Availability solutions
... online synchronization – Hot site is made the primary site by system admin • Automated fail-over may treat transient failures as disasters ...
... online synchronization – Hot site is made the primary site by system admin • Automated fail-over may treat transient failures as disasters ...
Lab 3 Handout
... o Load the JDBC driver o Connect to the data source o Execute SQL statements We will go through an example to learn how to use JDBC: Important Note-1: If you would like to download and use a database file (e.g., if you download the database file of Homework 3), it is usually forbidden to edit the co ...
... o Load the JDBC driver o Connect to the data source o Execute SQL statements We will go through an example to learn how to use JDBC: Important Note-1: If you would like to download and use a database file (e.g., if you download the database file of Homework 3), it is usually forbidden to edit the co ...
Methodology: Conceptual Database Design
... Incorporate structural and integrity considerations into the data models. Combine conceptualization, normalization, and transaction validation techniques into the data modeling methodology. ...
... Incorporate structural and integrity considerations into the data models. Combine conceptualization, normalization, and transaction validation techniques into the data modeling methodology. ...
B561 Advanced Database Concepts §0 Introduction
... semantic problems that arise when many concurrent users access and change the same database. ...
... semantic problems that arise when many concurrent users access and change the same database. ...
Designing and Development of the Aerial Surveying Digital Data
... Based on existing data, using the Borland's Delphi development tool, Microsoft’s SQL Server 2000 ultra-large databases and SuperMap Objects graphical components, we designed and developed the aerial digital data management information system based on two-tier C/S structure model[5-9].The main work o ...
... Based on existing data, using the Borland's Delphi development tool, Microsoft’s SQL Server 2000 ultra-large databases and SuperMap Objects graphical components, we designed and developed the aerial digital data management information system based on two-tier C/S structure model[5-9].The main work o ...
32N1633 DBSG Future Database Needs
... Assist data generation, by describing the meaning of data entry fields and the potential valid values Register provenance information that can be provided to end users of data Assist with information discovery by pointing to systems where particular data is maintained. ...
... Assist data generation, by describing the meaning of data entry fields and the potential valid values Register provenance information that can be provided to end users of data Assist with information discovery by pointing to systems where particular data is maintained. ...
COURSE OUTLINE SCHOOL: School of Engineering Technology
... Explain the concepts of relational database management system (RDBMS), particularly: o What an RDBMS is, and how it differs from older flat file systems. o The importance of the data model, its building blocks, and how it relates to business rules. o How data is organized through the use of integr ...
... Explain the concepts of relational database management system (RDBMS), particularly: o What an RDBMS is, and how it differs from older flat file systems. o The importance of the data model, its building blocks, and how it relates to business rules. o How data is organized through the use of integr ...
Computer revision sheet (Sec.2) – (First term)
... (16) The following address for a private company what sites: http://www.company.com/index.html, from the previous reading of the title, we find that this site was published: (Local Host - Publishing web Site - Locally and on the Internet) ...
... (16) The following address for a private company what sites: http://www.company.com/index.html, from the previous reading of the title, we find that this site was published: (Local Host - Publishing web Site - Locally and on the Internet) ...
Data Resource Management
... The role of data steward is relatively new, and its creation is motivated by the desire to protect the valuable data assets of the firm. There are many job descriptions in the modern organization associated with the strategic management of data resources. Using the Internet, ...
... The role of data steward is relatively new, and its creation is motivated by the desire to protect the valuable data assets of the firm. There are many job descriptions in the modern organization associated with the strategic management of data resources. Using the Internet, ...
14 Designing our staging area
... permanent tables that will be repeatedly accessed in a random manner by certain known columns of data in the table. It is not desirable to go through the effort of creating an index on a staging table, which will only be accessed for a short amount of time during a data load. Also, it is not really ...
... permanent tables that will be repeatedly accessed in a random manner by certain known columns of data in the table. It is not desirable to go through the effort of creating an index on a staging table, which will only be accessed for a short amount of time during a data load. Also, it is not really ...
Principles of Information Systems, Ninth Edition
... Consist of warehouses filled with row upon row of server racks and powerful cooling systems ...
... Consist of warehouses filled with row upon row of server racks and powerful cooling systems ...
Deck - Stefano Grazioli
... © Stefano Grazioli - Ask for permission for using/quoting: grazioli@virginia.edu ...
... © Stefano Grazioli - Ask for permission for using/quoting: grazioli@virginia.edu ...
Chapter 3 - School of Business Administration
... Data Entities, Attributes, and Keys • Entity: a generalized class of people, places, or things (objects) for which data is collected, stored, and maintained • Attribute: a characteristic of an entity • Data item: a value of an attribute • Key: field(s) that identify a record • Primary key: field(s) ...
... Data Entities, Attributes, and Keys • Entity: a generalized class of people, places, or things (objects) for which data is collected, stored, and maintained • Attribute: a characteristic of an entity • Data item: a value of an attribute • Key: field(s) that identify a record • Primary key: field(s) ...
19. Implementation - University of St. Thomas
... Query optimizers generally try to use indices when available to speed retrieval. However, indices slow update speed and take disk space. This is further complicated by the fact that you can index combinations of columns in addition to single columns. So if you have a table with 12 columns, there are ...
... Query optimizers generally try to use indices when available to speed retrieval. However, indices slow update speed and take disk space. This is further complicated by the fact that you can index combinations of columns in addition to single columns. So if you have a table with 12 columns, there are ...
NewSQL Databases The reference Big Data stack
... Spanner • Motivations: – “We provide a database instead of a key-value store to make it easier for programmers to write their applications” – “We consistently received complaints from users that Bitable can be difficult to use for some kinds of applications” ...
... Spanner • Motivations: – “We provide a database instead of a key-value store to make it easier for programmers to write their applications” – “We consistently received complaints from users that Bitable can be difficult to use for some kinds of applications” ...
Lecture 18 - Introduction to Distributed Databases
... • Extends Physical and Logical Data Independence principles. • In particular, the user is shielded from the details of how data is “stored” (e.g., sorted, not sorted) and “logically organized” (e.g., in one or more relations) ...
... • Extends Physical and Logical Data Independence principles. • In particular, the user is shielded from the details of how data is “stored” (e.g., sorted, not sorted) and “logically organized” (e.g., in one or more relations) ...
A database management system (DBMS) is a software package with
... The Codasyl approach was based on the "manual" navigation of a linked data set which was formed into a large network. When the database was first opened, the program was handed back a link to the first record in the database, which also contained pointers to other pieces of data. To find any partic ...
... The Codasyl approach was based on the "manual" navigation of a linked data set which was formed into a large network. When the database was first opened, the program was handed back a link to the first record in the database, which also contained pointers to other pieces of data. To find any partic ...
Introduction to Database
... for the metadata of each file Each application program must have its own processing routines for reading, inserting, updating and deleting data Lack of coordination and central control Non-standard file formats ...
... for the metadata of each file Each application program must have its own processing routines for reading, inserting, updating and deleting data Lack of coordination and central control Non-standard file formats ...
4-3 - acg4401
... • This approach is also fraught with problems: – How many classes should you allow in building the table? – The above table is quite simplified. In reality, you might need to allow for 20 or more classes (assuming a student could take many 1-hour classes). Also, more information than just the course ...
... • This approach is also fraught with problems: – How many classes should you allow in building the table? – The above table is quite simplified. In reality, you might need to allow for 20 or more classes (assuming a student could take many 1-hour classes). Also, more information than just the course ...