OpenACS: robust web development framework
... This code block loops through a tv listings database looking for airings of Late Night with Conan O’Brien. The db_foreach command runs a loop, just like Tcl’s foreach command, but also fetches column variables for each row result, sets them in the code block environment and finally executes the code ...
... This code block loops through a tv listings database looking for airings of Late Night with Conan O’Brien. The db_foreach command runs a loop, just like Tcl’s foreach command, but also fetches column variables for each row result, sets them in the code block environment and finally executes the code ...
IS 4420 Database Fundamentals Chapter 11: Data Warehousing
... deleted once they have been added to the store ...
... deleted once they have been added to the store ...
Databases and Natural Language Interfaces
... questions formulated by the user contain two types of information: (i) the information to be found, i.e., what the user expects in the reply; and (ii) the conditions the reply must satisfy. The translation process handles each type of information differently. Replies supplied to the user may have pr ...
... questions formulated by the user contain two types of information: (i) the information to be found, i.e., what the user expects in the reply; and (ii) the conditions the reply must satisfy. The translation process handles each type of information differently. Replies supplied to the user may have pr ...
DB Tables and Relationships
... Survey data into two relations (tables) …so now we need to create a table for the rest of the data Don’t forget that each record must have a unique house identifier …and what we will use this for? ...
... Survey data into two relations (tables) …so now we need to create a table for the rest of the data Don’t forget that each record must have a unique house identifier …and what we will use this for? ...
OBJECT RELATIONAL DBMS
... OQL relies on the following assumptions ◆ Its statements are embedded in a PL sharing the same data model ◆ The programming language is object-oriented (e.g. C++, Java) SQL3 objects are not necessarily objects of the host PL ◆ In all SQL versions there is a cursor-based mechanism allowing to pass st ...
... OQL relies on the following assumptions ◆ Its statements are embedded in a PL sharing the same data model ◆ The programming language is object-oriented (e.g. C++, Java) SQL3 objects are not necessarily objects of the host PL ◆ In all SQL versions there is a cursor-based mechanism allowing to pass st ...
chap 15
... – Controls how much of a resource a given user can use Database Systems, 10th Edition ...
... – Controls how much of a resource a given user can use Database Systems, 10th Edition ...
Assessment for the CS Degree Program FY 2012-2013 Computer Science Dept.
... (CO470.4)Develop an application program to access databases with the Java programming language. Program Objective #3 (PO3): Students will develop solution-modeling skills. Assessment will be measured through testing the following course objectives: The first percentile is Fall 2009 and the second pe ...
... (CO470.4)Develop an application program to access databases with the Java programming language. Program Objective #3 (PO3): Students will develop solution-modeling skills. Assessment will be measured through testing the following course objectives: The first percentile is Fall 2009 and the second pe ...
Here is the Power Point Presentation on Cold Fusion
... ASP code is inserted in between normal HTML with special <% %> tags (much like JSP). Very different Syntax than C/Perl/etc, but very human readable. Barely Object Oriented ...
... ASP code is inserted in between normal HTML with special <% %> tags (much like JSP). Very different Syntax than C/Perl/etc, but very human readable. Barely Object Oriented ...
Extreme Performance Data Warehousing
... • Pre-summarized information stored within Oracle Database 11g • Separate database object, transparent to queries • Supports sophisticated transparent query rewrite • Fast incremental refresh of changed data ...
... • Pre-summarized information stored within Oracle Database 11g • Separate database object, transparent to queries • Supports sophisticated transparent query rewrite • Fast incremental refresh of changed data ...
Helpful Hints on Developing a User-Friendly Database with SAS/AF
... and labels. The user defined formats were stored in a formats catalog. The values of these were used as coded values for pull down menu selections. At first glance, the data being defined appears to be purely for storing information. For efficiency, these same attributes also affected the user’s sel ...
... and labels. The user defined formats were stored in a formats catalog. The values of these were used as coded values for pull down menu selections. At first glance, the data being defined appears to be purely for storing information. For efficiency, these same attributes also affected the user’s sel ...
Document
... The Research Projects Knowledge Base (RPKB) is being designed and will be implemented in a manner that is fully compatible and interoperable with NASA’s enterprise architecture tools developed to support NASA’s Applied Sciences Program. Through user needs assessment, collaboration with Stennis Space ...
... The Research Projects Knowledge Base (RPKB) is being designed and will be implemented in a manner that is fully compatible and interoperable with NASA’s enterprise architecture tools developed to support NASA’s Applied Sciences Program. Through user needs assessment, collaboration with Stennis Space ...
ppt - UMass Boston Computer Science
... Persistent objects have field-materialized identity It makes sense—Innate object identity depends on memory addresses, a short-lived phenomenon So long-lived objects (could be years…) have to be identified this way, it’s not the database’s fault ...
... Persistent objects have field-materialized identity It makes sense—Innate object identity depends on memory addresses, a short-lived phenomenon So long-lived objects (could be years…) have to be identified this way, it’s not the database’s fault ...
How In-Memory Affects Database Design
... • With in-memory code, we have to implement in stored procedures –Uniqueness on > 1 column set suffers from timing (If N connections are inserting the same data...MVCC will let them) * –Foreign Key type checks can't reliably be done because: * • In Snapshot Isolation Level, the row may have been del ...
... • With in-memory code, we have to implement in stored procedures –Uniqueness on > 1 column set suffers from timing (If N connections are inserting the same data...MVCC will let them) * –Foreign Key type checks can't reliably be done because: * • In Snapshot Isolation Level, the row may have been del ...
DAT317 Database Schema Versioning: How to Use Microsoft Visual
... The center of gravity The database project represents the “truth” with regards to schema versioning Optionally database project can be placed under source control .SQL script files is the canonical format used Changes are tracked at the “object level” For example indexes, constraints, triggers are ...
... The center of gravity The database project represents the “truth” with regards to schema versioning Optionally database project can be placed under source control .SQL script files is the canonical format used Changes are tracked at the “object level” For example indexes, constraints, triggers are ...
2. Background on Data Management
... IBM DB2 (object-relational, commercial) Microsoft SQL Server (object-relational, commercial) PostgreSQL (object-relational, open source) MySQL (relational, open source) ...
... IBM DB2 (object-relational, commercial) Microsoft SQL Server (object-relational, commercial) PostgreSQL (object-relational, open source) MySQL (relational, open source) ...
Multitable Clustering File Organization
... Can think of these stored addresses as pointers since they “point” to ...
... Can think of these stored addresses as pointers since they “point” to ...
Slides from Extra Lecture 20 - Courses
... database. Therefore, the client deals with proxies only. However, this is transparent to the client: proxies can be used as if they were the actual database objects, since they implement the same interface. Database objects are different from ordinary Java objects (other systems and specs, like JDO, ...
... database. Therefore, the client deals with proxies only. However, this is transparent to the client: proxies can be used as if they were the actual database objects, since they implement the same interface. Database objects are different from ordinary Java objects (other systems and specs, like JDO, ...
Statistical Database Query Languages
... information about derived data as to when it is derived, who has derived it and the formula used for derivation. Also, single-column relations can be created by specifying the tuple component values in various ways. In addition to the relations, HSDB maintains summary tables and provides a limited s ...
... information about derived data as to when it is derived, who has derived it and the formula used for derivation. Also, single-column relations can be created by specifying the tuple component values in various ways. In addition to the relations, HSDB maintains summary tables and provides a limited s ...
12 Managing Flashback Data Archive
... data in a highly secure and efficient manner • Historical data is stored in the database and can be retained for as long as you want • Special kernel optimizations to minimize performance overhead of capturing historical data • Historical data is stored in compressed form to minimize storage require ...
... data in a highly secure and efficient manner • Historical data is stored in the database and can be retained for as long as you want • Special kernel optimizations to minimize performance overhead of capturing historical data • Historical data is stored in compressed form to minimize storage require ...
Committed to Shaping the Next Generation of IT Experts.
... Queries allow us to question data The answer to the query is a dataset The question asked is formed using criteria – the rules or norm that is the basis for making judgments Copyright © 2008 Pearson Prentice Hall. All rights reserved. ...
... Queries allow us to question data The answer to the query is a dataset The question asked is formed using criteria – the rules or norm that is the basis for making judgments Copyright © 2008 Pearson Prentice Hall. All rights reserved. ...
Document
... LIKE. Operator LIKE is used for string pattern matching with wildcard characters percent (%) and underscore (_). • A percent character (%) in a pattern indicates that a string matching the pattern can have zero or more characters at the percent character’s location in the pattern. • An underscore (_ ...
... LIKE. Operator LIKE is used for string pattern matching with wildcard characters percent (%) and underscore (_). • A percent character (%) in a pattern indicates that a string matching the pattern can have zero or more characters at the percent character’s location in the pattern. • An underscore (_ ...
Slide 0
... The New View from Management • DBA’s are needed to make sure servers and databases are running at optimum • They save the company money by finding the real issue behind performance issues. • They have critical databases restored in a timely manner meaning less disruption to services • The are respo ...
... The New View from Management • DBA’s are needed to make sure servers and databases are running at optimum • They save the company money by finding the real issue behind performance issues. • They have critical databases restored in a timely manner meaning less disruption to services • The are respo ...
Chapter4a
... basis for “real” languages (e.g. SQL), and for implementation: Relational Algebra: More operational, very useful for representing execution plans. Relational Calculus: Lets users describe what they want, rather than how to compute it. (Non-operational, declarative.) Understanding Algebra & Cal ...
... basis for “real” languages (e.g. SQL), and for implementation: Relational Algebra: More operational, very useful for representing execution plans. Relational Calculus: Lets users describe what they want, rather than how to compute it. (Non-operational, declarative.) Understanding Algebra & Cal ...
Database model
A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.