Introduction to Spatial Databases
... What is a SDBMS ? A SDBMS is a software module that can work with an underlying DBMS supports spatial data models, spatial abstract data types (ADTs) and a query language from which these ADTs are callable supports spatial indexing, efficient algorithms for processing spatial operations, and domain ...
... What is a SDBMS ? A SDBMS is a software module that can work with an underlying DBMS supports spatial data models, spatial abstract data types (ADTs) and a query language from which these ADTs are callable supports spatial indexing, efficient algorithms for processing spatial operations, and domain ...
Introduction to Spatial Databases
... What is a SDBMS ? A SDBMS is a software module that can work with an underlying DBMS supports spatial data models, spatial abstract data types (ADTs) and a query language from which these ADTs are callable supports spatial indexing, efficient algorithms for processing spatial operations, and domain ...
... What is a SDBMS ? A SDBMS is a software module that can work with an underlying DBMS supports spatial data models, spatial abstract data types (ADTs) and a query language from which these ADTs are callable supports spatial indexing, efficient algorithms for processing spatial operations, and domain ...
BASIC SPATIAL ANALYSIS TOOLS IN A GIS - Dycker@control
... disease clusters around certain features (e.g. asthma surrounding incinerators) Crime to examine if car crime is more prominent in certain areas (e.g. close to major roads, street corners, car parks) ...
... disease clusters around certain features (e.g. asthma surrounding incinerators) Crime to examine if car crime is more prominent in certain areas (e.g. close to major roads, street corners, car parks) ...
Java Database Connectivity (JDBC)
... Connection objects. Some drivers (e.g., IBM’s native DB2) will not close the rs and st objects even when you close the connection. ...
... Connection objects. Some drivers (e.g., IBM’s native DB2) will not close the rs and st objects even when you close the connection. ...
Best Approaches To Database Auditing
... Appropriate for data modifications – Provides a full audit trail of changes to column data ...
... Appropriate for data modifications – Provides a full audit trail of changes to column data ...
Efficiencies using SAS® and Netezza®
... Netezza temporary tables are kept only during an active session. This means that that all processing of the temporary tables must take place before SAS disconnects from the Netezza. In the example below, two temporary summary tables are created in the Netezza environment and then joined to a custome ...
... Netezza temporary tables are kept only during an active session. This means that that all processing of the temporary tables must take place before SAS disconnects from the Netezza. In the example below, two temporary summary tables are created in the Netezza environment and then joined to a custome ...
Spatial Query Languages - Computer Science and Engineering
... SQL - General Information is a standard query language for relational databases It support logical data model concepts, such as relations, keys, ... Supported by major brands, e.g. IBM DB2, Oracle, MS SQL Server, Sybase, ... 3 versions: SQL1 (1986), SQL2 (1992), SQL 3 (1999) Can express common data ...
... SQL - General Information is a standard query language for relational databases It support logical data model concepts, such as relations, keys, ... Supported by major brands, e.g. IBM DB2, Oracle, MS SQL Server, Sybase, ... 3 versions: SQL1 (1986), SQL2 (1992), SQL 3 (1999) Can express common data ...
Chapter 1 Overview of Database Concepts
... concatenate, fields, literals, and other data • A line break code of CHR(10) can be used to format output on multiple lines; the output must be formatted as text output in SQL*Plus for the line break command to operate properly Oracle 10g: SQL ...
... concatenate, fields, literals, and other data • A line break code of CHR(10) can be used to format output on multiple lines; the output must be formatted as text output in SQL*Plus for the line break command to operate properly Oracle 10g: SQL ...
Relational Database Design - State University of New York
... • The table below describes the assignment of a police officer (o) to drive a certain vehicle (v) during a certain shift (s) on a certain day (d). The assignment is given a certain readiness level (r ) that depends on the skills of the officer and the equipment in the vehicle. The weather (w) is a f ...
... • The table below describes the assignment of a police officer (o) to drive a certain vehicle (v) during a certain shift (s) on a certain day (d). The assignment is given a certain readiness level (r ) that depends on the skills of the officer and the equipment in the vehicle. The weather (w) is a f ...
Best Practices ® Minimizing Planned Outages IBM
... amount of time it takes to complete the maintenance task, or by minimizing the amount of system resources the task consumes. For example, excessive reorganization of tables or indexes can needlessly consume system resources to the point where your end users experience unacceptably slow response time ...
... amount of time it takes to complete the maintenance task, or by minimizing the amount of system resources the task consumes. For example, excessive reorganization of tables or indexes can needlessly consume system resources to the point where your end users experience unacceptably slow response time ...
Chapter 1
... - The form display document and the PHP processing document can be combined - After simply inserting the XHTML from the display document into the PHP document, several modifications are required: 1. Change the value of the action attribute of the form to the name of the combined document file 2. Cre ...
... - The form display document and the PHP processing document can be combined - After simply inserting the XHTML from the display document into the PHP document, several modifications are required: 1. Change the value of the action attribute of the form to the name of the combined document file 2. Cre ...
Chapter # 8 (Advanced SQL)
... Date/time data types implemented differently by different DBMS vendors ANSI SQL standard defines date data types, but not how data types are stored ...
... Date/time data types implemented differently by different DBMS vendors ANSI SQL standard defines date data types, but not how data types are stored ...
Housekeeping in Shoper 9
... This option helps the users to export data to various destinations. Post Transactions to Tally — Is used to execute the export activity from Shoper 9 POS to Tally.ERP 9 outside the scheduled activity. Create PT files — Helps to create flat file pertaining to the data of selected transaction type ...
... This option helps the users to export data to various destinations. Post Transactions to Tally — Is used to execute the export activity from Shoper 9 POS to Tally.ERP 9 outside the scheduled activity. Create PT files — Helps to create flat file pertaining to the data of selected transaction type ...
week11 - Arms-A
... 1. An attribute frequently compared to constant in a where clause of a query 2. Attribute that appear frequently in join ...
... 1. An attribute frequently compared to constant in a where clause of a query 2. Attribute that appear frequently in join ...
A Fast Index for Semistructured Data
... that traditional techniques cannot easily handle. As a result, we can answer general queries efficiently using raw paths, even as we further optimize certain queries using refined paths. Maintaining all of the paths in the same index structure reduces the resource contention that occurs with multipl ...
... that traditional techniques cannot easily handle. As a result, we can answer general queries efficiently using raw paths, even as we further optimize certain queries using refined paths. Maintaining all of the paths in the same index structure reduces the resource contention that occurs with multipl ...
Sharing and Reproducing Database Applications
... and data dependencies. In addition to creating the execution trace and including it in the reproducibility package for the application, LDV also copies accessed files and database tuples into the package. We support two options for shipping the database. The server-include packaging option includes ...
... and data dependencies. In addition to creating the execution trace and including it in the reproducibility package for the application, LDV also copies accessed files and database tuples into the package. We support two options for shipping the database. The server-include packaging option includes ...
3. Crosscutting Concerns in Database Systems
... The former, discussed in Sect. 3.1, relate to the software system managing the database. Conceptually they are not very different from crosscutting concerns in other software systems apart from some domain specific properties. Sections 3.1.1-3 discuss some concrete examples of such crosscutting conc ...
... The former, discussed in Sect. 3.1, relate to the software system managing the database. Conceptually they are not very different from crosscutting concerns in other software systems apart from some domain specific properties. Sections 3.1.1-3 discuss some concrete examples of such crosscutting conc ...
Database Concepts Chapter 1 Getting Started 1) The purpose of a
... also reads and updates the database data. It receives requests from application programs to perform data maintenance tasks. These requests are translated into actions that are performed on the database. In addition to maintaining the user data within the database, the DBMS also maintains the databas ...
... also reads and updates the database data. It receives requests from application programs to perform data maintenance tasks. These requests are translated into actions that are performed on the database. In addition to maintaining the user data within the database, the DBMS also maintains the databas ...
chapter 1 - Sacramento - California State University
... heterogeneous databases is a problem that affects a lot of companies today. Almost every organization makes use of multiple database systems depending on the requirements of their projects. If a project requires a light weight database system having a lot of emphasis on performance then a database s ...
... heterogeneous databases is a problem that affects a lot of companies today. Almost every organization makes use of multiple database systems depending on the requirements of their projects. If a project requires a light weight database system having a lot of emphasis on performance then a database s ...
TIBCO Foresight Transaction Insight
... This document contains confidential information that is subject to U.S. and international copyright laws and treaties. No part of this document may be reproduced in any form without the written authorization of TIBCO Software Inc. TIBCO, Two-Second Advantage, TIBCO Foresight Archive and Retrieval Sy ...
... This document contains confidential information that is subject to U.S. and international copyright laws and treaties. No part of this document may be reproduced in any form without the written authorization of TIBCO Software Inc. TIBCO, Two-Second Advantage, TIBCO Foresight Archive and Retrieval Sy ...
User-Defined Table Operators: Enhancing Extensibility for ORDBMS
... options in Figure 1, which are useful for other purposes like query optimization but which are beyond the scope of this paper. In Figure 2 we present the type description including input and output tables. Each table is described by specifying the name and data type for each column. In Figure 2 the ...
... options in Figure 1, which are useful for other purposes like query optimization but which are beyond the scope of this paper. In Figure 2 we present the type description including input and output tables. Each table is described by specifying the name and data type for each column. In Figure 2 the ...
Logical structure of a transaction
... – Cannot Query/Write, and then Re-Query in the same transaction, since the simulation results are not in the DB yet. – The endorser/committer architecture cannot prevent phantom reads, therefore this solution can only be used by applications not sensitive to phantom reads • A phantom read occurs whe ...
... – Cannot Query/Write, and then Re-Query in the same transaction, since the simulation results are not in the DB yet. – The endorser/committer architecture cannot prevent phantom reads, therefore this solution can only be used by applications not sensitive to phantom reads • A phantom read occurs whe ...