Lecture 5 ppt - School of Computer Science
... given a name Access requires a name, but some others don’t • Constraints which refer to single columns can be included in their definition ...
... given a name Access requires a name, but some others don’t • Constraints which refer to single columns can be included in their definition ...
Week2 Database Fundamentals(3)
... • The logical layer provides a structure for the data which is known as the conceptual schema • This structure needs to meet the requirements of the users. This is what we will work on when we design databases. • It makes the data available to any application (or several at once) without the designe ...
... • The logical layer provides a structure for the data which is known as the conceptual schema • This structure needs to meet the requirements of the users. This is what we will work on when we design databases. • It makes the data available to any application (or several at once) without the designe ...
Understanding SAS/ACCESS® Software's Role with Querying and Reporting in a Business Intelligence Environment
... SAS/ACCESS software is a group of interfaces that provide data access and integration between SAS and thirdparty databases. SAS/ACCESS interfaces are available for the most current releases of many database management systems on the most popular platforms on the market. For a list of supported datab ...
... SAS/ACCESS software is a group of interfaces that provide data access and integration between SAS and thirdparty databases. SAS/ACCESS interfaces are available for the most current releases of many database management systems on the most popular platforms on the market. For a list of supported datab ...
Policy-Based Management of SQL Servers and Databases
... Because of this readily available technology, embedded databases come with many products and enable companies to store more data for longer, so companies want to consolidate their servers. SQL Server 2008 focuses on four key areas to meet today’s OLTP database needs: Scale and Performance. SQL Serve ...
... Because of this readily available technology, embedded databases come with many products and enable companies to store more data for longer, so companies want to consolidate their servers. SQL Server 2008 focuses on four key areas to meet today’s OLTP database needs: Scale and Performance. SQL Serve ...
Document
... database to another is hard. The SQL standard is large and complex, so most databases do not implement it fully. Some areas of the SQL standards such as semantics are ambiguous. It is possible to get stuck with a system. ...
... database to another is hard. The SQL standard is large and complex, so most databases do not implement it fully. Some areas of the SQL standards such as semantics are ambiguous. It is possible to get stuck with a system. ...
Improving SQL Server Database Performance with DotHill
... Summary and Conclusion High-end all-flash storage may have extreme performance figures, but it is expensive and generally unnecessary to support the application needs for small-to-medium business. The Dot Hill AssuredSAN 4824 storage array is intended to be affordable for these sized businesses, and ...
... Summary and Conclusion High-end all-flash storage may have extreme performance figures, but it is expensive and generally unnecessary to support the application needs for small-to-medium business. The Dot Hill AssuredSAN 4824 storage array is intended to be affordable for these sized businesses, and ...
Structured Query Language
... Copyright © 2013 Pearson Education, Inc. Publishing as Prentice Hall ...
... Copyright © 2013 Pearson Education, Inc. Publishing as Prentice Hall ...
focus on: fdr/upstream`s online database solutions
... GroupWise database system. UPSTREAM makes the GroupWise system appear as separate volumes for the domain database, the post office and the Document Management Services library. Within each “volume” are the files that comprise each of the facilities. This allows you to restore the entire GroupWise sy ...
... GroupWise database system. UPSTREAM makes the GroupWise system appear as separate volumes for the domain database, the post office and the Document Management Services library. Within each “volume” are the files that comprise each of the facilities. This allows you to restore the entire GroupWise sy ...
PL SQl
... [REFERENCING OLD AS o NEW AS n]: This allows you to refer new and old values for various DML statements, like INSERT, UPDATE, and DELETE. [FOR EACH ROW]: This specifies a row level trigger, i.e., the trigger would be executed for each row being affected. Otherwise the trigger will execute just once ...
... [REFERENCING OLD AS o NEW AS n]: This allows you to refer new and old values for various DML statements, like INSERT, UPDATE, and DELETE. [FOR EACH ROW]: This specifies a row level trigger, i.e., the trigger would be executed for each row being affected. Otherwise the trigger will execute just once ...
Overview of Transaction Management
... READ COMMITTED is the default isolation level for both Oracle and PostgreSQL. A new snapshot is taken for every issued SQL statement (every statement sees the latest committed values). If a transaction T2 running in READ COMMITTED mode tries to update a row which was already updated by a concurrent ...
... READ COMMITTED is the default isolation level for both Oracle and PostgreSQL. A new snapshot is taken for every issued SQL statement (every statement sees the latest committed values). If a transaction T2 running in READ COMMITTED mode tries to update a row which was already updated by a concurrent ...
END
... commands can be used directly inside PL/SQL blocks. Data Definition Language (DDL) commands cannot be used directly inside PL/SQL blocks, but they can be used indirectly through dynamic SQL statements. Oracle Database PL/SQL 10g Programming (Chapter 4) ...
... commands can be used directly inside PL/SQL blocks. Data Definition Language (DDL) commands cannot be used directly inside PL/SQL blocks, but they can be used indirectly through dynamic SQL statements. Oracle Database PL/SQL 10g Programming (Chapter 4) ...
Database
... System Designers and Implementors: Design and implement DBMS packages in the form of modules and interfaces and test and debug them. The DBMS must interface with applications, language compilers, operating system components, etc. Tool Developers: Design and implement software systems called tools fo ...
... System Designers and Implementors: Design and implement DBMS packages in the form of modules and interfaces and test and debug them. The DBMS must interface with applications, language compilers, operating system components, etc. Tool Developers: Design and implement software systems called tools fo ...
Chapter 3
... language for manipulating relational databases Three classes of statements: definition, query, and manipulation You create objects with the CREATE statement You perform queries with the SELECT statement the condition is part of the WHERE clause Concepts of Database Management, 5th Edition ...
... language for manipulating relational databases Three classes of statements: definition, query, and manipulation You create objects with the CREATE statement You perform queries with the SELECT statement the condition is part of the WHERE clause Concepts of Database Management, 5th Edition ...
Declarative Management of SQL Servers and Databases with Policies
... of storage growth and database proliferation. Because of this readily available technology, embedded databases come with many products and enable companies to store more data for longer, so companies want to consolidate their servers. SQL Server 2008 focuses on four key areas to meet today’s OLTP da ...
... of storage growth and database proliferation. Because of this readily available technology, embedded databases come with many products and enable companies to store more data for longer, so companies want to consolidate their servers. SQL Server 2008 focuses on four key areas to meet today’s OLTP da ...
Download jdbc.ppt
... • Driver Manager: Loads database drivers and manages connections between the application and the driver • Driver: Translates API calls into operations for specific database • Connection: Session between application and data source • Statement: SQL statement to perform query or update • Metadata: Inf ...
... • Driver Manager: Loads database drivers and manages connections between the application and the driver • Driver: Translates API calls into operations for specific database • Connection: Session between application and data source • Statement: SQL statement to perform query or update • Metadata: Inf ...
Database Systems - University of Texas at Dallas
... queries • Writing programs in various programming languages that include SQL statements • Set of commands for specifying physical database design parameters, file structures for relations, and access paths ...
... queries • Writing programs in various programming languages that include SQL statements • Set of commands for specifying physical database design parameters, file structures for relations, and access paths ...
Parallel Database
... History of Parallel Databases Mainframes dominated most database and transaction processing tasks. Parallel Machines were practically written off. Specialized Database Machines came up with trendy hardware. Relational Data Model brought about a revolution. ...
... History of Parallel Databases Mainframes dominated most database and transaction processing tasks. Parallel Machines were practically written off. Specialized Database Machines came up with trendy hardware. Relational Data Model brought about a revolution. ...
Database Systems: Design, Implementation, and Management
... • That the relational database model takes a logical view of data • That the relational database model’s basic components are entities and their attributes, and relationships among entities • How entities and their attributes are organized into tables • About relational database operators, the data ...
... • That the relational database model takes a logical view of data • That the relational database model’s basic components are entities and their attributes, and relationships among entities • How entities and their attributes are organized into tables • About relational database operators, the data ...
btgrubu.com
... • One size does not fit all – choice is good *IDC, “Worldwide Professional Developer Model”, June 2007; Evans Data Corp, “Global Developer Population And Demographics Report”, September 2006 ...
... • One size does not fit all – choice is good *IDC, “Worldwide Professional Developer Model”, June 2007; Evans Data Corp, “Global Developer Population And Demographics Report”, September 2006 ...
SQLJ: Embedded SQL in Java
... A simple program in SQLJ is presented in this section. This program illustrates the essential steps that are needed to write an SQLJ program. These steps follow: 1. Import necessary classes. In addition to the JDBC classes, java.sql.*, every SQLJ program will need to include the SQLJ run-time classe ...
... A simple program in SQLJ is presented in this section. This program illustrates the essential steps that are needed to write an SQLJ program. These steps follow: 1. Import necessary classes. In addition to the JDBC classes, java.sql.*, every SQLJ program will need to include the SQLJ run-time classe ...
Database Systems: Design, Implementation, and Management
... • That the relational database model takes a logical view of data • That the relational database model’s basic components are entities and their attributes, and relationships among entities • How entities and their attributes are organized into tables • About relational database operators, the data ...
... • That the relational database model takes a logical view of data • That the relational database model’s basic components are entities and their attributes, and relationships among entities • How entities and their attributes are organized into tables • About relational database operators, the data ...
Oracle Database
Oracle Database (commonly referred to as Oracle RDBMS or simply as Oracle) is an object-relational database management system produced and marketed by Oracle Corporation.Larry Ellison and his two friends and former co-workers, Bob Miner and Ed Oates, started a consultancy called Software Development Laboratories (SDL) in 1977. SDL developed the original version of the Oracle software. The name Oracle comes from the code-name of a CIA-funded project Ellison had worked on while previously employed by Ampex.