Oracle_ch3 - Gonzaga University Student Web Server
... spaces or hyphens 4. Must be unique and No reserved words are allowed Are the following names (for field) valid? Why? customer order customer-order #order Customer_# Customer# Dr. Chen, Oracle Database System (Oracle) ...
... spaces or hyphens 4. Must be unique and No reserved words are allowed Are the following names (for field) valid? Why? customer order customer-order #order Customer_# Customer# Dr. Chen, Oracle Database System (Oracle) ...
Distributed Systems - Distributed Transactions
... operations outside of the transaction until Warehouse Management and Dispatch are both updated and transaction successfully closed. ...
... operations outside of the transaction until Warehouse Management and Dispatch are both updated and transaction successfully closed. ...
A Storage Advisor for Hybrid-Store Databases
... data is managed on column or attribute level, i.e., all the values of the individual attributes are stored subsequently. That way, accessing all values of a column—as typically done for aggregates—can be done very efficiently. Moreover, the higher similarity of values within a column compared to the ...
... data is managed on column or attribute level, i.e., all the values of the individual attributes are stored subsequently. That way, accessing all values of a column—as typically done for aggregates—can be done very efficiently. Moreover, the higher similarity of values within a column compared to the ...
Oracle PL/SQL - Gunadarma University
... Procedures are explicitly executed by a user or application Triggers are implicitly executed (fired) when the triggering event occurs Triggers should not be used as a lazy way to invoke a procedure as they are fired every time the event occurs ...
... Procedures are explicitly executed by a user or application Triggers are implicitly executed (fired) when the triggering event occurs Triggers should not be used as a lazy way to invoke a procedure as they are fired every time the event occurs ...
Lecture 1
... Topological and Set comparison Operations Equal: True if the interior and boundary of two geometries are equal. Disjoint: True if the boundaries and interiors do not intersect Intersection: true if geometries are not disjoint Touch: true if the boundaries of two surfaces intersect but their interior ...
... Topological and Set comparison Operations Equal: True if the interior and boundary of two geometries are equal. Disjoint: True if the boundaries and interiors do not intersect Intersection: true if geometries are not disjoint Touch: true if the boundaries of two surfaces intersect but their interior ...
Unit 5 Text A
... servers use static IP address. Typically, ISPs, web sites, web hosting services, and email servers are constantly connected to the Internet and require static addresses. Although IP addresses work for communication between computers, people find it difficult to remember long string of numbers. There ...
... servers use static IP address. Typically, ISPs, web sites, web hosting services, and email servers are constantly connected to the Internet and require static addresses. Although IP addresses work for communication between computers, people find it difficult to remember long string of numbers. There ...
PowerPoint 04
... End of line: Different operating systems may use different control characters at the end of each line. For instance, “\r\n” is used in Windows systems, while “\n” is used in Unix. Apple OS X uses “\r”. To deal with this heterogeneity, we may specify the end of line symbols when loading the data if y ...
... End of line: Different operating systems may use different control characters at the end of each line. For instance, “\r\n” is used in Windows systems, while “\n” is used in Unix. Apple OS X uses “\r”. To deal with this heterogeneity, we may specify the end of line symbols when loading the data if y ...
BCS THE CHARTERED INSTITUTE FOR IT DATABASE SYSTEMS BCS HIGHER EDUCATION QUALIFICATIONS
... If you add a new item to the table and make a mistake in the description, then you may end up with (e.g.) two different descriptions for the same item. (2 marks) Modification Anomaly If the description of an item changes, and if you neglect to change all the descriptions, then the table will contain ...
... If you add a new item to the table and make a mistake in the description, then you may end up with (e.g.) two different descriptions for the same item. (2 marks) Modification Anomaly If the description of an item changes, and if you neglect to change all the descriptions, then the table will contain ...
Database Access with EJB Application Servers
... the original bean instance, but that’s all right. The container decides which beans to activate and which beans to passivate and it is specific to each container. Passivation may occur at any time, as long as a bean is not involved in a method call or transaction. Entity beans are persistent object ...
... the original bean instance, but that’s all right. The container decides which beans to activate and which beans to passivate and it is specific to each container. Passivation may occur at any time, as long as a bean is not involved in a method call or transaction. Entity beans are persistent object ...
System R: Relational Approach to Database Management
... machines contains all code and tables needed to execute all data management functions; that is, services are not reserved to a centralized machine. The provision for many database machines, each executing shared, reentrant code and sharing control information, means that the database system need not ...
... machines contains all code and tables needed to execute all data management functions; that is, services are not reserved to a centralized machine. The provision for many database machines, each executing shared, reentrant code and sharing control information, means that the database system need not ...
original - Kansas State University
... Drop and Alter Table Constructs: Review The drop table command deletes all information about the dropped relation from the database. The alter table command is used to add attributes to an existing relation: alter table r add A D where A is the name of the attribute to be added to relation r an ...
... Drop and Alter Table Constructs: Review The drop table command deletes all information about the dropped relation from the database. The alter table command is used to add attributes to an existing relation: alter table r add A D where A is the name of the attribute to be added to relation r an ...
Essentials of Database Management Chapter 1 The Database
... Topic: The Database Approach AACSB: Analytic Skills, Reflective Thinking Subtopic: Data Models 59) A person is an example of an entity. Answer: TRUE Diff: 1 Page Ref: 8 Topic: The Database Approach AACSB: Analytic Skills, Reflective Thinking Subtopic: Data Models 60) A well-structured database estab ...
... Topic: The Database Approach AACSB: Analytic Skills, Reflective Thinking Subtopic: Data Models 59) A person is an example of an entity. Answer: TRUE Diff: 1 Page Ref: 8 Topic: The Database Approach AACSB: Analytic Skills, Reflective Thinking Subtopic: Data Models 60) A well-structured database estab ...
System R: Relational Approach to Database Management
... machines contains all code and tables needed to execute all data management functions; that is, services are not reserved to a centralized machine. The provision for many database machines, each executing shared, reentrant code and sharing control information, means that the database system need not ...
... machines contains all code and tables needed to execute all data management functions; that is, services are not reserved to a centralized machine. The provision for many database machines, each executing shared, reentrant code and sharing control information, means that the database system need not ...
Document
... • Simple object Only single value attributes • Composite object Contains at least one multi-value attributes and no attributes that refer to other objects; ex: MOVIE • Compound object : Contains attribute that refer to other objects. Ex: Advisor • Associative object: represents relationship between ...
... • Simple object Only single value attributes • Composite object Contains at least one multi-value attributes and no attributes that refer to other objects; ex: MOVIE • Compound object : Contains attribute that refer to other objects. Ex: Advisor • Associative object: represents relationship between ...
bh-usa-01-Andrews-SQL
... – Administrators can assign a proxy account under which non-sysadmins can use xp_cmdshell – The real problem is that if an attacker can access SQL Server as a system administrator, they can execute operating system commands with the security context of the MSSQLServer service ...
... – Administrators can assign a proxy account under which non-sysadmins can use xp_cmdshell – The real problem is that if an attacker can access SQL Server as a system administrator, they can execute operating system commands with the security context of the MSSQLServer service ...
Oracle SQL
... group of operations or tasks that should be treated as a single unit. For instance, a collection of SQL queries modifying records that all must be updated at the same time, where (for instance) a failure to update any single records among the set should result in none of the records being updated. ...
... group of operations or tasks that should be treated as a single unit. For instance, a collection of SQL queries modifying records that all must be updated at the same time, where (for instance) a failure to update any single records among the set should result in none of the records being updated. ...
Chapter 8
... responsibilities. There are some processing responsibilities that may be assigned to either the client or the server or split between them. One example of this is the enforcement of business rules. • There are advantages and disadvantages to having the logic for enforcing business rules in the serve ...
... responsibilities. There are some processing responsibilities that may be assigned to either the client or the server or split between them. One example of this is the enforcement of business rules. • There are advantages and disadvantages to having the logic for enforcing business rules in the serve ...
Database Access with EJB Application Servers
... the original bean instance, but that’s all right. The container decides which beans to activate and which beans to passivate and it is specific to each container. Passivation may occur at any time, as long as a bean is not involved in a method call or transaction. Entity beans are persistent object ...
... the original bean instance, but that’s all right. The container decides which beans to activate and which beans to passivate and it is specific to each container. Passivation may occur at any time, as long as a bean is not involved in a method call or transaction. Entity beans are persistent object ...
database tuning slides
... against the version of the data items that was committed when the transaction started: – No locks for read – Costs space (old copy of data must be kept) ...
... against the version of the data items that was committed when the transaction started: – No locks for read – Costs space (old copy of data must be kept) ...
Technical Note
... partition by EMPLID. This has forced me to archive these tables with DML. The largest Global Payroll result tables are also list sub-partitioned by the ID payroll period. Most payroll processes are run for a specific pay period, and so Oracle can eliminate all list sub-partitions other than the one ...
... partition by EMPLID. This has forced me to archive these tables with DML. The largest Global Payroll result tables are also list sub-partitioned by the ID payroll period. Most payroll processes are run for a specific pay period, and so Oracle can eliminate all list sub-partitions other than the one ...
Provenance in Databases: Past, Current, and Future
... The work of DBNotes builds upon ideas developed in [10, 30]. DBNotes is an annotation management system for relational database systems. In DBNotes, every attribute value in a relation can be tagged with multiple annotations. When a query is executed against the database, annotations of relevant att ...
... The work of DBNotes builds upon ideas developed in [10, 30]. DBNotes is an annotation management system for relational database systems. In DBNotes, every attribute value in a relation can be tagged with multiple annotations. When a query is executed against the database, annotations of relevant att ...
Microsoft Jet Database Engine
The Microsoft Jet Database Engine is a database engine on which several Microsoft products have been built. A database engine is the underlying component of a database, a collection of information stored on a computer in a systematic way. The first version of Jet was developed in 1992, consisting of three modules which could be used to manipulate a database.Database connect for MicrosoftJET stands for Joint Engine Technology, sometimes being referred to as Microsoft JET Engine or simply Jet. Microsoft Access and Visual Basic use or have used Jet as their underlying database engine. It has since been superseded for general use, however, first by Microsoft Desktop Engine (MSDE), then later by SQL Server Express. For larger database needs, Jet databases can be upgraded (or, in Microsoft parlance, ""up-sized"") to Microsoft's flagship database product, SQL Server.However, this does not mean that a MS Jet (Red) database cannot match MS SQL Server in storage capacity. A 5 billion record MS Jet (Red) database with compression and encryption turned on requires about 1 terabyte of disk storage space, comprising hundreds of (*.mdb) files, each acting as partial table, and not as a database in itself.Over the years, Jet has become almost synonymous with Microsoft Access, to the extent that many people refer to a Jet database as an ""Access database"".