Unit 6 Database Design and the ER Model
... E.g.: One-to-one relationship: A customer is associated with at most one loan via the relationship borrower A loan is associated with at most one customer via borrower ...
... E.g.: One-to-one relationship: A customer is associated with at most one loan via the relationship borrower A loan is associated with at most one customer via borrower ...
ch2 copy
... tuples is irrelevant and may be thought of as arbitrary. In a real DBMS, tuple order is typically very important and not arbitrary. ...
... tuples is irrelevant and may be thought of as arbitrary. In a real DBMS, tuple order is typically very important and not arbitrary. ...
SQL Server Operations Assessment
... 2. Service packs and patches are not current. The servers with SQL Server 2000 nearly all have the current service pack 3 applied; however, none of them have the 818 security rollup patch. 3. Transaction logs are not on separate RAID arrays from the database. Although transaction logs and data are o ...
... 2. Service packs and patches are not current. The servers with SQL Server 2000 nearly all have the current service pack 3 applied; however, none of them have the 818 security rollup patch. 3. Transaction logs are not on separate RAID arrays from the database. Although transaction logs and data are o ...
Database Compiler Concepts - University of Connecticut
... SQL has the SELECT Statement for Retrieving Info. from a Database (Not Relational Algebra Select) SQL vs. Formal Relational Model SQL Allows a Table (Relation) to have Two or More Identical Tuples in All Their Attribute Values Hence, an SQL Table is a Multi-set (Sometimes Called a Bag) of Tuples ...
... SQL has the SELECT Statement for Retrieving Info. from a Database (Not Relational Algebra Select) SQL vs. Formal Relational Model SQL Allows a Table (Relation) to have Two or More Identical Tuples in All Their Attribute Values Hence, an SQL Table is a Multi-set (Sometimes Called a Bag) of Tuples ...
Enterprise JavaBeans (EJB)
... SOAP uses an XML format to exchange request and response information via HTTP Due to SOAP's well-defined protocol, Web Services can be used to exchange information between businesses (B2B) ...
... SOAP uses an XML format to exchange request and response information via HTTP Due to SOAP's well-defined protocol, Web Services can be used to exchange information between businesses (B2B) ...
ppt
... Algorithm A1 (linear search). Scan each file block and test all records to see whether they satisfy the selection condition. Cost estimate = br block transfers + 1 seek br denotes number of blocks containing records from relation r ...
... Algorithm A1 (linear search). Scan each file block and test all records to see whether they satisfy the selection condition. Cost estimate = br block transfers + 1 seek br denotes number of blocks containing records from relation r ...
Introduction to XML
... XML stands for EXtensible Markup Language XML was designed to describe data. XML tags are not predefined unlike HTML ...
... XML stands for EXtensible Markup Language XML was designed to describe data. XML tags are not predefined unlike HTML ...
CSS122_WINTER09_LECTURE08
... SELECT Title, X.Ratings, Y.Genres FROM Movies M LEFT JOIN (SELECT MovieID, COUNT(Rating) AS Ratings FROM Ratings GROUP BY MovieID) X ON M.MovieID = X.MovieID LEFT JOIN (SELECT MovieID, COUNT(Genre) AS Genres FROM XRefGenresMovies GROUP BY MovieID) Y ON M.MovieID = Y.MovieID; ...
... SELECT Title, X.Ratings, Y.Genres FROM Movies M LEFT JOIN (SELECT MovieID, COUNT(Rating) AS Ratings FROM Ratings GROUP BY MovieID) X ON M.MovieID = X.MovieID LEFT JOIN (SELECT MovieID, COUNT(Genre) AS Genres FROM XRefGenresMovies GROUP BY MovieID) Y ON M.MovieID = Y.MovieID; ...
Get a Handle on DDL Changes Using Oracle Streams
... Apply Forwarding, information is received by an intermediate database, applied, captured, and re-queued and ready for propagation to another destination database. ...
... Apply Forwarding, information is received by an intermediate database, applied, captured, and re-queued and ready for propagation to another destination database. ...
Log Reader Agent Algorithm
... MaxCmdsInTran – max number of commands written to distributor as a transaction ...
... MaxCmdsInTran – max number of commands written to distributor as a transaction ...
Slides01
... largest software companies in the world. • IBM offers its relational DB2 system. With IMS, a nonrelational system, IBM is by some accounts the largest DBMS vendor in the world. • Microsoft offers SQL-Server, plus Microsoft Access for the cheap DBMS on the desktop, answered by “lite” systems from oth ...
... largest software companies in the world. • IBM offers its relational DB2 system. With IMS, a nonrelational system, IBM is by some accounts the largest DBMS vendor in the world. • Microsoft offers SQL-Server, plus Microsoft Access for the cheap DBMS on the desktop, answered by “lite” systems from oth ...
Integration and Virtualization of Relational SQL and NoSQL Systems
... graph databases. Importantly, there are no common standard APIs for accessing the different NoSQL systems or standard query languages such as SQL. Typically, users must interact with these systems at a programming level with custom APIs. This reduces portability and requires system-specific code. Al ...
... graph databases. Importantly, there are no common standard APIs for accessing the different NoSQL systems or standard query languages such as SQL. Typically, users must interact with these systems at a programming level with custom APIs. This reduces portability and requires system-specific code. Al ...
chapter 1 - Sacramento - California State University
... LAMP (Linux, Apache, MySQL, PHP/ Pearl/ Python). MySQL is flexible since it can work on different platforms like Linux, Windows, Unix, BSD (Mac OS X), Handheld (Windows CE). MySQL gives both open source freedom and 24 X 7 supports The new MySQL Enterprise improved the application performance and eff ...
... LAMP (Linux, Apache, MySQL, PHP/ Pearl/ Python). MySQL is flexible since it can work on different platforms like Linux, Windows, Unix, BSD (Mac OS X), Handheld (Windows CE). MySQL gives both open source freedom and 24 X 7 supports The new MySQL Enterprise improved the application performance and eff ...
Temporal Data Capture
... Captures all insert, update, and deletes for a tracked table without triggers or log reader agent. Easily consumed for ETL processes. Temporal data capture is available on all editions of SQL Server 2016 or Azure SQL Database. ...
... Captures all insert, update, and deletes for a tracked table without triggers or log reader agent. Easily consumed for ETL processes. Temporal data capture is available on all editions of SQL Server 2016 or Azure SQL Database. ...
PersistenceHibernate
... • Hibernate provides a set of Eclipse tools http://www.hibernate.org/255.html – Mapping Editor: An editor for Hibernate XML mapping files, supporting auto-completion and syntax highlighting – Console: a view in Eclipse. Provides a tree overview of console configurations and interactive view of persi ...
... • Hibernate provides a set of Eclipse tools http://www.hibernate.org/255.html – Mapping Editor: An editor for Hibernate XML mapping files, supporting auto-completion and syntax highlighting – Console: a view in Eclipse. Provides a tree overview of console configurations and interactive view of persi ...
Document
... – partitioning_type – "REFERENCE" – ref_ptn_constraint_name – the FK name • To address a specific partition (remember: you don't have a part name): – select * from sales partition for (to_date('15-may2007','dd-mon-yyyy')); ...
... – partitioning_type – "REFERENCE" – ref_ptn_constraint_name – the FK name • To address a specific partition (remember: you don't have a part name): – select * from sales partition for (to_date('15-may2007','dd-mon-yyyy')); ...
Course Outline
... announcements). – We will require you to sign an honor code. – Absence must be explained with proper documentation: ...
... announcements). – We will require you to sign an honor code. – Absence must be explained with proper documentation: ...
Chapter 3 Effects of IT on Strategy and Competition
... • Integrity constraints: define primary and foreign keys • Value constraints: define specific data values or data ranges that must be inserted into columns and whether values must be unique or not NULL • Table constraint: restricts the data value with respect to all other values in the table • Field ...
... • Integrity constraints: define primary and foreign keys • Value constraints: define specific data values or data ranges that must be inserted into columns and whether values must be unique or not NULL • Table constraint: restricts the data value with respect to all other values in the table • Field ...
CIM Database Model White Paper CIM Version 2.10 Abstract
... data is unified across the enterprise, there is significant value to both the customer and the solution provider. ...
... data is unified across the enterprise, there is significant value to both the customer and the solution provider. ...
from instructor - CSE, IIT Bombay
... Let’s Try Writing Some Queries in SQL Some queries to be written….. Find the salary of the instructor with ID 10101 Find titles of all courses in the Comp. Sci. department Find course ID, year and semester of all courses taken by any ...
... Let’s Try Writing Some Queries in SQL Some queries to be written….. Find the salary of the instructor with ID 10101 Find titles of all courses in the Comp. Sci. department Find course ID, year and semester of all courses taken by any ...
PhD Thesis - Mark Papiani
... of gigabytes range. A prototype architecture and user interface, EASIA (Extensible Architecture for Scientific Data Archives) [182] [183] is described. EASIA demonstrates several new concepts for active digital libraries of scientific data. Result files are archived in-place thereby avoiding costs a ...
... of gigabytes range. A prototype architecture and user interface, EASIA (Extensible Architecture for Scientific Data Archives) [182] [183] is described. EASIA demonstrates several new concepts for active digital libraries of scientific data. Result files are archived in-place thereby avoiding costs a ...
Mainframe Alternative Sizing—Technical white paper
... also show the relative throughput achieved on several HP system alternatives. In order to accomplish this study, a representative z/OS batch and CICS mainframe application was written in COBOL, and this z/OS Reference Application (zRef) was run both in an IBM mainframe LPAR with over a thousand MIPS ...
... also show the relative throughput achieved on several HP system alternatives. In order to accomplish this study, a representative z/OS batch and CICS mainframe application was written in COBOL, and this z/OS Reference Application (zRef) was run both in an IBM mainframe LPAR with over a thousand MIPS ...