1Z0-043
... You are working in an online transaction processing (OLTP) environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command, the System Change Number (SCN) was 663571. After flashing back the CUSTOMERS table, you realize that the table ...
... You are working in an online transaction processing (OLTP) environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command, the System Change Number (SCN) was 663571. After flashing back the CUSTOMERS table, you realize that the table ...
ch12new
... Only small fraction of all search-key values are found early Non-leaf nodes are larger, so fan-out is reduced. Thus, B-Trees typically have greater depth than corresponding B+-Tree ...
... Only small fraction of all search-key values are found early Non-leaf nodes are larger, so fan-out is reduced. Thus, B-Trees typically have greater depth than corresponding B+-Tree ...
Chapter 21:Application Development and Administration
... Indices are organized as pages containing index records and pointers to child and sibling pages ...
... Indices are organized as pages containing index records and pointers to child and sibling pages ...
Auditing and Inference Control in
... No one proposed protection mechanism is suitable for all SDB's. Protection mechanism 1 is shown to be compromisable [12], and protection mechanism 2 may not be feasible to implement. Mechanism 3 may be overly restrictive and limits the usefulness of the SDB. Mechanism 4, which employs output perturb ...
... No one proposed protection mechanism is suitable for all SDB's. Protection mechanism 1 is shown to be compromisable [12], and protection mechanism 2 may not be feasible to implement. Mechanism 3 may be overly restrictive and limits the usefulness of the SDB. Mechanism 4, which employs output perturb ...
CODESOFT Tutorial
... relationship. Each row in a table is called a record. The purpose of a record is to manage an object, the properties of which are organized across the different columns of the table in the form of fields. A database can contain a number of tables. To link the different tables within a given database ...
... relationship. Each row in a table is called a record. The purpose of a record is to manage an object, the properties of which are organized across the different columns of the table in the form of fields. A database can contain a number of tables. To link the different tables within a given database ...
Fault-Based Testing of Database Application Programs with
... given SQL statement issued by the program unit of a DB application manipulates the correct sets of data. At the level of parametric inputs and direct outputs of the program unit, there is no need to introduce any particular database instance. Testers may further construct database instances to initi ...
... given SQL statement issued by the program unit of a DB application manipulates the correct sets of data. At the level of parametric inputs and direct outputs of the program unit, there is no need to introduce any particular database instance. Testers may further construct database instances to initi ...
Low-Overhead Asynchronous Checkpointing in Main
... cannot be used. Instead, traditional techniques such as quiescing the database system (as done in Oracle TimesTen), obtaining read locks on the entire database, or requiring a hot spare server to take the checkpoint can be used. However, the performance of these techniques is far from ideal. Recent ...
... cannot be used. Instead, traditional techniques such as quiescing the database system (as done in Oracle TimesTen), obtaining read locks on the entire database, or requiring a hot spare server to take the checkpoint can be used. However, the performance of these techniques is far from ideal. Recent ...
Perl and Databases .
... incorrectly, but simply that you didn't have GDBM handy when Perl was installed. Surely this presents a problem if we're trying to write portable Perl scripts? Well, not necessarily. There's one more module we should at least mention, called AnyDBM_File. It's not actually DBM implementation itself, ...
... incorrectly, but simply that you didn't have GDBM handy when Perl was installed. Surely this presents a problem if we're trying to write portable Perl scripts? Well, not necessarily. There's one more module we should at least mention, called AnyDBM_File. It's not actually DBM implementation itself, ...
Resource Control for Java Database Extensions
... mechanisms, both the query optimizer and the UDFs themselves should have access to this information. ...
... mechanisms, both the query optimizer and the UDFs themselves should have access to this information. ...
How to Migrate Your Backend from Access to SQL Server 2000
... The purpose of the Upsizing Wizard is to migrate your backend (i.e. database and database objects such as tables, relationships and indexes) to a SQL Server environment. SQL Server differs from Access in that it is purely a database management system (DBMS). It does not have frontend functionality s ...
... The purpose of the Upsizing Wizard is to migrate your backend (i.e. database and database objects such as tables, relationships and indexes) to a SQL Server environment. SQL Server differs from Access in that it is purely a database management system (DBMS). It does not have frontend functionality s ...
Chapter 14: Concurrency Control
... Unlock requests result in the request being deleted, and later requests are checked to see if they can now be granted If transaction aborts, all waiting or granted requests of the transaction are deleted lock manager may keep a list of locks held by each transaction, to implement this efficiently ...
... Unlock requests result in the request being deleted, and later requests are checked to see if they can now be granted If transaction aborts, all waiting or granted requests of the transaction are deleted lock manager may keep a list of locks held by each transaction, to implement this efficiently ...
Module 3 Basic Access
... instructions (GIGO) Most applications have self-help features, use them ...
... instructions (GIGO) Most applications have self-help features, use them ...
Transactional Consistency and Automatic Management
... the result, making the cache entry invalid. The cache can store multiple cache entries with the same key; they will have disjoint validity intervals because only one is valid at any time. Whenever the TxCache library puts the result of a cacheable function call into the cache, it includes the validi ...
... the result, making the cache entry invalid. The cache can store multiple cache entries with the same key; they will have disjoint validity intervals because only one is valid at any time. Whenever the TxCache library puts the result of a cacheable function call into the cache, it includes the validi ...
Enterprise Mgr. TimesTen Plug
... The System Monitoring Plug-in for Oracle TimesTen In-Memory Database release 2.2 supports the metrics in TimesTen release 11.2.2 and TimesTen release 11.2.1.5.0 or later. If you use release 2.2 of the plug-in with TimesTen release 11.2.1, metrics added to TimesTen release 11.2.2 may be zero or blank ...
... The System Monitoring Plug-in for Oracle TimesTen In-Memory Database release 2.2 supports the metrics in TimesTen release 11.2.2 and TimesTen release 11.2.1.5.0 or later. If you use release 2.2 of the plug-in with TimesTen release 11.2.1, metrics added to TimesTen release 11.2.2 may be zero or blank ...
Chapter 16: Concurrency Control Lock-Based Protocols Lock
... ! Unlocking may occur earlier in the tree-locking protocol than in the two-phase locking protocol. ! shorter waiting times, and increase in concurrency ! protocol is deadlock-free, no rollbacks are required ! the abort of a transaction can still lead to cascading rollbacks. (this correction has to b ...
... ! Unlocking may occur earlier in the tree-locking protocol than in the two-phase locking protocol. ! shorter waiting times, and increase in concurrency ! protocol is deadlock-free, no rollbacks are required ! the abort of a transaction can still lead to cascading rollbacks. (this correction has to b ...
Multiple Choice Tutorial
... with any redundancy among those files partially or wholly eliminated. The sharing of a database refers to the sharing of data by different users, in the sense that each of those users may have access to the same piece of data and may use it for different purposes. Any given user will normally be con ...
... with any redundancy among those files partially or wholly eliminated. The sharing of a database refers to the sharing of data by different users, in the sense that each of those users may have access to the same piece of data and may use it for different purposes. Any given user will normally be con ...
No Slide Title
... (Lindsay, Park, Pittsfield)} is a relation over customer-name x customer-street x customer-city. ...
... (Lindsay, Park, Pittsfield)} is a relation over customer-name x customer-street x customer-city. ...
ORACLE EXADATA DATABASE MACHINE X3-2
... processing from database server software into the Exadata Storage Server hardware. Exadata storage leverages hardware decryption and compression together to provide the highest performance secure databases. Encryption occurs after the data is compressed so that the cost of decryption is decreased by ...
... processing from database server software into the Exadata Storage Server hardware. Exadata storage leverages hardware decryption and compression together to provide the highest performance secure databases. Encryption occurs after the data is compressed so that the cost of decryption is decreased by ...
1. Translate each entity set into a table, with keys. Multi
... Some slides adapted from R. Ramakrishnan, with permission Lecture 5 ...
... Some slides adapted from R. Ramakrishnan, with permission Lecture 5 ...
Fundamentals of Database Systems
... A constraint involving two relations (the previous constraints involve a single relation). Used to specify a relationship among tuples in two relations: the referencing relation and the referenced relation. Tuples in the referencing relation R1 have attributes FK (called foreign key attributes ...
... A constraint involving two relations (the previous constraints involve a single relation). Used to specify a relationship among tuples in two relations: the referencing relation and the referenced relation. Tuples in the referencing relation R1 have attributes FK (called foreign key attributes ...
users
... roles and in particular on their ability to form UA relations. No user is assigned to n or more roles from the same role set, where n or more roles conflict with each other. A user may be in one role, but not in another—mutually exclusive. Prevents a person from submitting and approving their own re ...
... roles and in particular on their ability to form UA relations. No user is assigned to n or more roles from the same role set, where n or more roles conflict with each other. A user may be in one role, but not in another—mutually exclusive. Prevents a person from submitting and approving their own re ...
Document
... For joins were partitioning is not applicable, parallelization can be accomplished by fragment and replicate technique Depicted on next slide Special case – asymmetric fragment-and-replicate: ...
... For joins were partitioning is not applicable, parallelization can be accomplished by fragment and replicate technique Depicted on next slide Special case – asymmetric fragment-and-replicate: ...
Welcome to TechWave 2006 SQL Anywhere Technical Summit Tracks 1 and 2
... Large Visual Studio developer base with requirement to extend database applications to the “front-lines” Looking for more powerful alternative to SS Mobile / Express May be part of heterogeneous replication environments ...
... Large Visual Studio developer base with requirement to extend database applications to the “front-lines” Looking for more powerful alternative to SS Mobile / Express May be part of heterogeneous replication environments ...
Hierarchical Model
... possible transformations are a special case of this one transformation. To transform the E-R diagram of Figure B.6a into a tree-structure diagram, we take these steps: 1. Create two separate tree-structure diagrams, T1 and T2 , each of which has the customer and account record types. In tree T1 , cu ...
... possible transformations are a special case of this one transformation. To transform the E-R diagram of Figure B.6a into a tree-structure diagram, we take these steps: 1. Create two separate tree-structure diagrams, T1 and T2 , each of which has the customer and account record types. In tree T1 , cu ...