CS6362 1998 - Northumbria University
... • Nested-Relational Model (NRM) are sometimes referred to as the Non-1NF or Non-First Normal Form (NFNF) or NF2 relational model. • Nested-Relational Model offers very limited features – Composite attributes (e.g. structs or records) – Nested relation i.e. the value of an attribute can be an entire ...
... • Nested-Relational Model (NRM) are sometimes referred to as the Non-1NF or Non-First Normal Form (NFNF) or NF2 relational model. • Nested-Relational Model offers very limited features – Composite attributes (e.g. structs or records) – Nested relation i.e. the value of an attribute can be an entire ...
Project Report
... Returns: A string representing the generated SQL insert query. Description: Executes an insert query according to the fields and values specified in the engQuery parameter. The method will generate the SQL update query using the metadata stored on the server. Notice that this method can only insert ...
... Returns: A string representing the generated SQL insert query. Description: Executes an insert query according to the fields and values specified in the engQuery parameter. The method will generate the SQL update query using the metadata stored on the server. Notice that this method can only insert ...
CSR installation instructions
... temporary root (super-user) privileges. Not all users are allowed to use the sudo command. Please, make sure that the system administrator of your Linux machine has assigned the privileges to you so that you can type: sudo –s You will be prompted for your own user password. Typing it does not show a ...
... temporary root (super-user) privileges. Not all users are allowed to use the sudo command. Please, make sure that the system administrator of your Linux machine has assigned the privileges to you so that you can type: sudo –s You will be prompted for your own user password. Typing it does not show a ...
Access to Relational Databases Using SAS®
... For the examples in this paper, Oracle 11 Server was installed on a network host running 64-bit Linux. The host name of this server is thor; since this system is running in a test network it is not necessary to supply the fully qualified domain name thor.eou.edu. The Oracle Client was installed on a ...
... For the examples in this paper, Oracle 11 Server was installed on a network host running 64-bit Linux. The host name of this server is thor; since this system is running in a test network it is not necessary to supply the fully qualified domain name thor.eou.edu. The Oracle Client was installed on a ...
Document
... Whenever B-Students is used in a query, the view definition is first evaluated, before using B-Students in any other query operation. View concept provides logical data independence, as it can be used to mask the changes in the conceptual schema. Views can be defined taken security aspect into consi ...
... Whenever B-Students is used in a query, the view definition is first evaluated, before using B-Students in any other query operation. View concept provides logical data independence, as it can be used to mask the changes in the conceptual schema. Views can be defined taken security aspect into consi ...
Хакери и БД
... Many SQL injection attack are based to the display of user names and passwords from the Users table. This sort of table is commonly used when employing forms authentication, and in many applications the passwords are stored as clear text. A better alternative is to store encrypted or hashed password ...
... Many SQL injection attack are based to the display of user names and passwords from the Users table. This sort of table is commonly used when employing forms authentication, and in many applications the passwords are stored as clear text. A better alternative is to store encrypted or hashed password ...
Chapter 09 Review Questions (Word)
... Changes in database structure may introduce errors that do not become apparent for long periods of time. Documentation provides a record of changes to assist the investigation into the cause of database errors. Further, documentation of database changes can be used to determine the structure of the ...
... Changes in database structure may introduce errors that do not become apparent for long periods of time. Documentation provides a record of changes to assist the investigation into the cause of database errors. Further, documentation of database changes can be used to determine the structure of the ...
Python Database Application Programming Interface (DB-API)
... In Chapter 14, File Processing and Serialization, we discussed sequential-access and random-access file processing. Sequential-file processing is appropriate for applications in which most or all of the file’s information is to be processed. On the other hand, randomaccess file processing is appropr ...
... In Chapter 14, File Processing and Serialization, we discussed sequential-access and random-access file processing. Sequential-file processing is appropriate for applications in which most or all of the file’s information is to be processed. On the other hand, randomaccess file processing is appropr ...
Chapter 9 - Personal.kent.edu
... completes everything it intended to do before saving the changes. ...
... completes everything it intended to do before saving the changes. ...
Download jdbc.ppt
... Thus if ODBC driver exists for a database this bridge can be used to communicate with the database from a Java application ...
... Thus if ODBC driver exists for a database this bridge can be used to communicate with the database from a Java application ...
Programming in Oracle with PL/SQL
... Program Structures: Procedures and Functions • A set of SQL and PL/SQL statements grouped together as a unit (block) to solve a specific problem or perform a set of related tasks. • An anonymous block is a PL/SQL block that appears within your application and it is not named or stored in the databa ...
... Program Structures: Procedures and Functions • A set of SQL and PL/SQL statements grouped together as a unit (block) to solve a specific problem or perform a set of related tasks. • An anonymous block is a PL/SQL block that appears within your application and it is not named or stored in the databa ...
Oracle Migration Assessment
... end of the range a migration can be accomplished with minimal help from EnterpriseDB beyond any standard documentation and training that are available. At the lower end of the range, some consulting from EnterpriseDB experts may be needed to implement portions of the database and its client applicat ...
... end of the range a migration can be accomplished with minimal help from EnterpriseDB beyond any standard documentation and training that are available. At the lower end of the range, some consulting from EnterpriseDB experts may be needed to implement portions of the database and its client applicat ...
MYCH3
... IC: condition that must be true for any instance of the database; e.g., domain constraints. ...
... IC: condition that must be true for any instance of the database; e.g., domain constraints. ...
Performance Comparison of Database Access over the Internet
... memory management, etc., as well as time spent by the servlets when waiting for the arrival of user requests. Therefore, factors such as overhead placed upon the underlying processors of the clients, the network delay, etc., would have some impact on NCRT. As depicted in Figure 6 (see Appendix), sig ...
... memory management, etc., as well as time spent by the servlets when waiting for the arrival of user requests. Therefore, factors such as overhead placed upon the underlying processors of the clients, the network delay, etc., would have some impact on NCRT. As depicted in Figure 6 (see Appendix), sig ...
Storing OWL Ontologies in SQL Relational Databases
... The first technique is to use file systems for storing ontologies in flat files. The main problem with this technique is that file systems do not provide scalability, sharability, or any query facility. The second technique (that we follow) is to use database management systems for storing ontologie ...
... The first technique is to use file systems for storing ontologies in flat files. The main problem with this technique is that file systems do not provide scalability, sharability, or any query facility. The second technique (that we follow) is to use database management systems for storing ontologie ...
Chapter 1
... • Client-side installations facilitate user access to a remote Oracle10g database • Oracle Net Services component on the client side handles communication with remote database • Four variations, including: – Administrator: provides user management tools, including Enterprise Manager, to provide remo ...
... • Client-side installations facilitate user access to a remote Oracle10g database • Oracle Net Services component on the client side handles communication with remote database • Four variations, including: – Administrator: provides user management tools, including Enterprise Manager, to provide remo ...
ASP.NET Programming with C# and SQL Server First Edition
... • Open Database Connectivity (ODBC) allows ODBC-compliant applications to access any data source for which there is an ODBC driver • ActiveX Data Objects (ADO) is a technology that allows ASP to access ODBC- and OLE DBcompliant databases • Use classes in the System.Data.SqlClient namespace to access ...
... • Open Database Connectivity (ODBC) allows ODBC-compliant applications to access any data source for which there is an ODBC driver • ActiveX Data Objects (ADO) is a technology that allows ASP to access ODBC- and OLE DBcompliant databases • Use classes in the System.Data.SqlClient namespace to access ...
Consistent Query Answers in Inconsistent Databases
... query posed to a database that violates the integrity constraints will be consistent in a precise sense: It should be the same as the answer obtained from any minimally repaired version of the original database. We also provide a method for computing such answers and prove its properties. On the bas ...
... query posed to a database that violates the integrity constraints will be consistent in a precise sense: It should be the same as the answer obtained from any minimally repaired version of the original database. We also provide a method for computing such answers and prove its properties. On the bas ...
Documentum Content Server 7.1 on AIX with DB2
... Content Server can be installed and configured in many different ways as per content management requirements. Content Server supports basic, high availability and distributed installation models. The installation model described in this paper is Connection Broker and Content Server on one host and R ...
... Content Server can be installed and configured in many different ways as per content management requirements. Content Server supports basic, high availability and distributed installation models. The installation model described in this paper is Connection Broker and Content Server on one host and R ...
Introduction to Database Systems
... A Database Management System (DBMS) is a software package designed to store and manage databases. ...
... A Database Management System (DBMS) is a software package designed to store and manage databases. ...
Review 1
... • If a relation schema has more than one key, each of them is called a candidate key. • one candidate key is chosen as the primary key (PK) • foreign key (FK) is defined as follows: i) Consider two relation schemas R1 and R2; ii) The attributes in FK in R1 have the same domain(s) as the primary key ...
... • If a relation schema has more than one key, each of them is called a candidate key. • one candidate key is chosen as the primary key (PK) • foreign key (FK) is defined as follows: i) Consider two relation schemas R1 and R2; ii) The attributes in FK in R1 have the same domain(s) as the primary key ...
Chapter 27.ppt
... An External database can be accessed within AutoCAD only after configuring AutoCAD using Microsoft ODBC (Open Database Connectivity) and OLE DB (Object Linking and Embedding Database) programs. AutoCAD is capable of utilizing data from other applications, regardless of the format and the platform on ...
... An External database can be accessed within AutoCAD only after configuring AutoCAD using Microsoft ODBC (Open Database Connectivity) and OLE DB (Object Linking and Embedding Database) programs. AutoCAD is capable of utilizing data from other applications, regardless of the format and the platform on ...
User-Defined Table Operators: Enhancing Extensibility for ORDBMS
... our design were to provide extensibility with respect to new database operators, and to ensure that the design fits well to the existing technology. Especially, it should be possible to integrate the technology into current commercial ORDBMS without a major change of the system architecture. Though ...
... our design were to provide extensibility with respect to new database operators, and to ensure that the design fits well to the existing technology. Especially, it should be possible to integrate the technology into current commercial ORDBMS without a major change of the system architecture. Though ...
Estimation of Query Execution Time in Milli Seconds, Micro Seconds
... SQL) to access the data stored in a database. Most of the relational database application programs are written in high-level languages integrating a relational language. The important concept considered in SQL are (entities, relationships, attributes) and the data schema while using SQL. The user ha ...
... SQL) to access the data stored in a database. Most of the relational database application programs are written in high-level languages integrating a relational language. The important concept considered in SQL are (entities, relationships, attributes) and the data schema while using SQL. The user ha ...