Designing and Implementing an Active Personal Health Record
... OWL object property. As presented in Figure 1, we have named this object property ‘MedicationSource’. Note that in the extended PHR ontology, besides the health related concepts, we have presented information that is used by the alerts. For example, the class Alert is comprised of the alerts that a ...
... OWL object property. As presented in Figure 1, we have named this object property ‘MedicationSource’. Note that in the extended PHR ontology, besides the health related concepts, we have presented information that is used by the alerts. For example, the class Alert is comprised of the alerts that a ...
Information Systems (Informationssysteme)
... By far the most important query language today is SQL. Structured Query Language Originally meant to be used by end users © Today supported by virtually any database system SQL operates on relational data: Ingredients Name Alcohol InStock Orange Juice ...
... By far the most important query language today is SQL. Structured Query Language Originally meant to be used by end users © Today supported by virtually any database system SQL operates on relational data: Ingredients Name Alcohol InStock Orange Juice ...
Zacharewski Bioinformatics Group Large Object
... The dbZach database makes great use of BLOB values, especially in the management of microarray, real-time PCR and pathology data. Reading BLOB data back out of the database is far easier than inserting it. The algorithm for reading BLOB values out of the database follows: 1. Regular queries are perf ...
... The dbZach database makes great use of BLOB values, especially in the management of microarray, real-time PCR and pathology data. Reading BLOB data back out of the database is far easier than inserting it. The algorithm for reading BLOB values out of the database follows: 1. Regular queries are perf ...
data management and databases
... management, and retrieval of data in a database. DBMS are categorized according to their data structures or types, some time DBMS is also known as Data base Manager. It is a set of prewritten programs that are used to store, update and retrieve a Database. A DBMS includes: ...
... management, and retrieval of data in a database. DBMS are categorized according to their data structures or types, some time DBMS is also known as Data base Manager. It is a set of prewritten programs that are used to store, update and retrieve a Database. A DBMS includes: ...
Privacy-preserving Sanitization in Data Sharing
... In the era of big data, the prospect of analyzing, monitoring and investigating all sources of data starts to stand out in every aspect of our life. The benefit of such practices becomes concrete only when analysts or investigators have the information shared from data owners. However, privacy is on ...
... In the era of big data, the prospect of analyzing, monitoring and investigating all sources of data starts to stand out in every aspect of our life. The benefit of such practices becomes concrete only when analysts or investigators have the information shared from data owners. However, privacy is on ...
Scaling Up with SQL Server 2008
... read-ahead scans to anticipate the data pages that are required for a given execution plan and preemptively read them into the cache. Additionally, the SQL Server 2008 native support for data compression can reduce the number of data pages that must be read, which improves performance on I/O-bound w ...
... read-ahead scans to anticipate the data pages that are required for a given execution plan and preemptively read them into the cache. Additionally, the SQL Server 2008 native support for data compression can reduce the number of data pages that must be read, which improves performance on I/O-bound w ...
Microsoft SQL Server OLAP Solution – A Survey
... Defining Hierarchy........................................................................................ 27 ...
... Defining Hierarchy........................................................................................ 27 ...
From Data Integration to Semantic Mediation
... • … leading to a new XML querying & transformation paradigm: – how to execute (some) XML queries & transformations on very large (infinite) data streams using only limited memory – XML stream machine (XSM): extended XML transducers with buffers ...
... • … leading to a new XML querying & transformation paradigm: – how to execute (some) XML queries & transformations on very large (infinite) data streams using only limited memory – XML stream machine (XSM): extended XML transducers with buffers ...
Referential Integrity Is Important For Databases
... only store data, but should actively seek to ensure its quality. Here are some additional definitions that we found on the Web. • “Referential integrity in a relational database is consistency between coupled tables. Referential integrity is usually enforced by the combination of a primary key and a ...
... only store data, but should actively seek to ensure its quality. Here are some additional definitions that we found on the Web. • “Referential integrity in a relational database is consistency between coupled tables. Referential integrity is usually enforced by the combination of a primary key and a ...
Title (46 pt. HP Simplified bold)
... Success criteria a) Plugin that can read data from Vertica tables and export into an external target. E.g. HDFS cluster. b) Design the plugin to be scalable to export terabytes of data. c) Design the plugin to be extensible to support different data formats (pipe delimited, ORC files, etc.), storag ...
... Success criteria a) Plugin that can read data from Vertica tables and export into an external target. E.g. HDFS cluster. b) Design the plugin to be scalable to export terabytes of data. c) Design the plugin to be extensible to support different data formats (pipe delimited, ORC files, etc.), storag ...
Exercises
... account number that has never been used. Use a correlated subquery introduced with the NOT EXISTS operator. Sort the final result set by AccountNo. 5. Write a SELECT statement that returns four columns: VendorName, InvoiceID, InvoiceSequence, and InvoiceLineItemAmount for each invoice that has more ...
... account number that has never been used. Use a correlated subquery introduced with the NOT EXISTS operator. Sort the final result set by AccountNo. 5. Write a SELECT statement that returns four columns: VendorName, InvoiceID, InvoiceSequence, and InvoiceLineItemAmount for each invoice that has more ...
♦ Sunrise: A Real-Time Event-Processing System and Avi Silberschatz
... technology, however, the costs of invoking a structured query language (SQL) operation over a client-server interface, or the costs of a single access to secondary storage, can already account for hundreds of milliseconds. As a consequence, performance goals on the order of a few milliseconds may be ...
... technology, however, the costs of invoking a structured query language (SQL) operation over a client-server interface, or the costs of a single access to secondary storage, can already account for hundreds of milliseconds. As a consequence, performance goals on the order of a few milliseconds may be ...
Document
... relation storing one part of the information E.g.: account : stores information about accounts depositor : stores information about which customer owns which account customer : stores information about customers Storing all information as a single relation such as bank(account-number, balance, cus ...
... relation storing one part of the information E.g.: account : stores information about accounts depositor : stores information about which customer owns which account customer : stores information about customers Storing all information as a single relation such as bank(account-number, balance, cus ...
Preventing Transaction Logs From Filling Up
... growing too large. This document will cover the steps necessary to recover in the event that the transaction log has grown too large, manual truncation of the transaction log before it becomes a problem and how to schedule a maintenance plan. The transaction log is responsible for keeping track of a ...
... growing too large. This document will cover the steps necessary to recover in the event that the transaction log has grown too large, manual truncation of the transaction log before it becomes a problem and how to schedule a maintenance plan. The transaction log is responsible for keeping track of a ...
Databases eng File - I3CT - ICT e
... The attributes that make the primary key are called primary attributes. The primary key attribute cannot have a null value in any tuple. Relationship structure is briefly described with the so called relational schema, which consists of the relation name and a list of attribute names in parentheses. ...
... The attributes that make the primary key are called primary attributes. The primary key attribute cannot have a null value in any tuple. Relationship structure is briefly described with the so called relational schema, which consists of the relation name and a list of attribute names in parentheses. ...
Module 1: Introduction
... create role teller create role manager grant select on branch to teller grant update (balance) on account to teller grant all privileges on account to manager grant teller to manager grant teller to alice, bob grant manager to avi ...
... create role teller create role manager grant select on branch to teller grant update (balance) on account to teller grant all privileges on account to manager grant teller to manager grant teller to alice, bob grant manager to avi ...
Databases and the Grid - Indico
... data on the Grid ATLAS is evaluating several technologies for securing database-resident data Secure grid query engine technologies federating heterogeneous databases on the grid o used at Fermilab Run II experiments Methods utilizing GSI data-transport channel for database services delivery t ...
... data on the Grid ATLAS is evaluating several technologies for securing database-resident data Secure grid query engine technologies federating heterogeneous databases on the grid o used at Fermilab Run II experiments Methods utilizing GSI data-transport channel for database services delivery t ...
stars - Department of Computer Science and Information Systems
... However, larger-scale applications may need to integrate information from several databases, possibly supporting different data models To integrate information stored in such heterogeneous databases it is necessary to form a single, integrated schema Conflicts may existing between the various ...
... However, larger-scale applications may need to integrate information from several databases, possibly supporting different data models To integrate information stored in such heterogeneous databases it is necessary to form a single, integrated schema Conflicts may existing between the various ...
Specialized Programme on Application Development using - C-DAC
... From February 16th, 2015 to May 8th, 2015 In weeks: 12 Weeks ...
... From February 16th, 2015 to May 8th, 2015 In weeks: 12 Weeks ...
IC Database Configuration and Maintenance for SQL Server
... When selecting a CPU for the server, select one with a large L2 cache. This is especially important for multiple-processor servers. Select at least a 1MB L2 cache for one or two CPUs. Four or more CPUs should have at a least 2MB L2 cache in each CPU. The greater the L2 cache, the greater the server' ...
... When selecting a CPU for the server, select one with a large L2 cache. This is especially important for multiple-processor servers. Select at least a 1MB L2 cache for one or two CPUs. Four or more CPUs should have at a least 2MB L2 cache in each CPU. The greater the L2 cache, the greater the server' ...
customer-name
... 1. r, s must have the same arity (same number of attributes) 2. The attribute domains must be compatible (e.g., 2nd column of r deals with the same type of values as does the 2nd column of s) E.g. to find all customers with either an account or a loan ...
... 1. r, s must have the same arity (same number of attributes) 2. The attribute domains must be compatible (e.g., 2nd column of r deals with the same type of values as does the 2nd column of s) E.g. to find all customers with either an account or a loan ...
Session Title That is Really Long and Covers Two Lines
... Definition of Done. Don't use a shared development database. Write unit tests. Design from the UI to the database. Keep it simple. ...
... Definition of Done. Don't use a shared development database. Write unit tests. Design from the UI to the database. Keep it simple. ...
Relational model
The relational model for database management is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in 1969 by Edgar F. Codd. In the relational model of a database, all data is represented in terms of tuples, grouped into relations. A database organized in terms of the relational model is a relational database.The purpose of the relational model is to provide a declarative method for specifying data and queries: users directly state what information the database contains and what information they want from it, and let the database management system software take care of describing data structures for storing the data and retrieval procedures for answering queries.Most relational databases use the SQL data definition and query language; these systems implement what can be regarded as an engineering approximation to the relational model. A table in an SQL database schema corresponds to a predicate variable; the contents of a table to a relation; key constraints, other constraints, and SQL queries correspond to predicates. However, SQL databases deviate from the relational model in many details, and Codd fiercely argued against deviations that compromise the original principles.