customer-name
... tuples tr from r and ts from s. If tr and ts have the same value on each of the attributes in R S, a tuple t is added to the result, where t has the same value as tr on r t has the same value as ts on s ...
... tuples tr from r and ts from s. If tr and ts have the same value on each of the attributes in R S, a tuple t is added to the result, where t has the same value as tr on r t has the same value as ts on s ...
PointBase System Guide Version 4.8
... Java Virtual Machines allow you to group together classes into one file, called either a jar file or a zip file. Both file formats may be compressed. In addition, jar files may also contain a certificate that digitally signs the originating location of the jar file. To use a jar file, you must speci ...
... Java Virtual Machines allow you to group together classes into one file, called either a jar file or a zip file. Both file formats may be compressed. In addition, jar files may also contain a certificate that digitally signs the originating location of the jar file. To use a jar file, you must speci ...
Backup/Restore and Replication
... 2. Full - The Full Recovery model uses database backups and transaction log backups to provide complete protection against failure. If one or more data files are damaged, restoring the backups permits recovery of all committed transactions using a combination of the database and transaction log bac ...
... 2. Full - The Full Recovery model uses database backups and transaction log backups to provide complete protection against failure. If one or more data files are damaged, restoring the backups permits recovery of all committed transactions using a combination of the database and transaction log bac ...
Chapter 19: Distributed Databases
... more expensive, but avoids some drawbacks of two-phase commit protocol. This protocol is not widely used, but variants of this protocol are used in some critical applications. ...
... more expensive, but avoids some drawbacks of two-phase commit protocol. This protocol is not widely used, but variants of this protocol are used in some critical applications. ...
Oracle Data Guard – Fast Start Failover understood!
... Oracle 10g: Simplified syntax, RAC support, partial failover cluster support, reuse of old primary as new standby database, automatic standby activation Fast Start Failover understood ...
... Oracle 10g: Simplified syntax, RAC support, partial failover cluster support, reuse of old primary as new standby database, automatic standby activation Fast Start Failover understood ...
Chapter 17: Parallel Databases
... create a large number of partitions (say 10 to 20 times the number of processors) Assign virtual processors to partitions either in roundrobin fashion or based on estimated cost of processing each virtual partition ...
... create a large number of partitions (say 10 to 20 times the number of processors) Assign virtual processors to partitions either in roundrobin fashion or based on estimated cost of processing each virtual partition ...
PDF
... conclusion that a database system needs to support both models of resource control feedback. The rest of the paper is structured as follows. An example-based motivation of our work is contained in the next section. This is followed by a description of selected details on Jaguar and JRes - systems us ...
... conclusion that a database system needs to support both models of resource control feedback. The rest of the paper is structured as follows. An example-based motivation of our work is contained in the next section. This is followed by a description of selected details on Jaguar and JRes - systems us ...
Chapter 21:Application Development and Administration
... » The search criteria of the update/delete must be evaluated again if the transaction commits – update/delete includes updating the header information of the old tuple as well as creating a new tuple ...
... » The search criteria of the update/delete must be evaluated again if the transaction commits – update/delete includes updating the header information of the old tuple as well as creating a new tuple ...
Document
... called a star schema. According to [KRRT98] dimensional modelling actually predates the entity-relationship modelling approach, which is the conventional way in which to design a relational database coupled with normalisation theory [MR92, LL99a]. Star schemas can be refined into snowflake schemas p ...
... called a star schema. According to [KRRT98] dimensional modelling actually predates the entity-relationship modelling approach, which is the conventional way in which to design a relational database coupled with normalisation theory [MR92, LL99a]. Star schemas can be refined into snowflake schemas p ...
Computing Consistent Query Answers using Conflict
... so it may be impossible or impractical to resolve the inconsistency between them. However, there is clearly a difference between the first two tuples and the third one. We don’t know whether Jeremy Burford lives in Los Angeles or New York, but we do know that Linda Kenner lives in Chicago. An approa ...
... so it may be impossible or impractical to resolve the inconsistency between them. However, there is clearly a difference between the first two tuples and the third one. We don’t know whether Jeremy Burford lives in Los Angeles or New York, but we do know that Linda Kenner lives in Chicago. An approa ...
Administering Websense Databases
... Database on the TRITON management server and pushed to other Data Security components for fast analysis on those machines. To tune performance, you can configure the disk space and cache size of the database on the management server in Data Security manager. To do so: 1. Log onto the TRITON console ...
... Database on the TRITON management server and pushed to other Data Security components for fast analysis on those machines. To tune performance, you can configure the disk space and cache size of the database on the management server in Data Security manager. To do so: 1. Log onto the TRITON console ...
ER Model 2 - Department of Computer Science
... the higher-level entity set must belong to at least one of the lower-level entity sets within a generalization. total : an entity must belong to one of the lower-level entity sets partial: an entity need not belong to one of the lower-level entity sets ...
... the higher-level entity set must belong to at least one of the lower-level entity sets within a generalization. total : an entity must belong to one of the lower-level entity sets partial: an entity need not belong to one of the lower-level entity sets ...
Relational Database Management System
... b. False Ans. A 16. ________ is used to recreate if trigger already exists. a. Replace b. Create c. Declare Ans. A 17. ________ cursors are declared and used by the user to process multiple row, returned by select statement. a. Implicit b. Explicit Ans. B 18. The set of rows returned by a query is c ...
... b. False Ans. A 16. ________ is used to recreate if trigger already exists. a. Replace b. Create c. Declare Ans. A 17. ________ cursors are declared and used by the user to process multiple row, returned by select statement. a. Implicit b. Explicit Ans. B 18. The set of rows returned by a query is c ...
Document
... > TSYS is spun-off from its parent company, Synovus, to become a fully independent company. > TSYS acquires a Silicon Valley technology firm to simplify the acceptance of many new forms of payment. > TSYS adds new data centre in Okinawa, Japan garnering more than 600,000 accounts and three new clien ...
... > TSYS is spun-off from its parent company, Synovus, to become a fully independent company. > TSYS acquires a Silicon Valley technology firm to simplify the acceptance of many new forms of payment. > TSYS adds new data centre in Okinawa, Japan garnering more than 600,000 accounts and three new clien ...
SharePoint 2010 Readiness
... Large content databases and site collections will take longer to upgrade If upgrade time is critical consider splitting Content Databases and/or Site Collections into smaller units prior to upgrade STSADM’s mergecontentdbs command can be used to move a Site Collection to a different Content Database ...
... Large content databases and site collections will take longer to upgrade If upgrade time is critical consider splitting Content Databases and/or Site Collections into smaller units prior to upgrade STSADM’s mergecontentdbs command can be used to move a Site Collection to a different Content Database ...
Loading and Managing OS MasterMap Topography Layer
... TOID will remain the same and only its Version number will increment. The building features representing the new house and gardens, etc., will get newly-assigned TOIDs, and be assigned Version ‘1’. It should be noted, however, that because of internal Ordnance Survey update procedures, a feature’s V ...
... TOID will remain the same and only its Version number will increment. The building features representing the new house and gardens, etc., will get newly-assigned TOIDs, and be assigned Version ‘1’. It should be noted, however, that because of internal Ordnance Survey update procedures, a feature’s V ...
ppt
... covers other relational languages, including the relational calculus, QBE and Datalog. The chapters in this part describe data manipulation: queries, updates, insertions, and deletions, assuming a schema design has been provided. Schema design issues are deferred to Part 2. ...
... covers other relational languages, including the relational calculus, QBE and Datalog. The chapters in this part describe data manipulation: queries, updates, insertions, and deletions, assuming a schema design has been provided. Schema design issues are deferred to Part 2. ...
DBC-e05-Chapter-02-PP
... numeric value that is added to a relation to serve as the primary key • Surrogate key values have no meaning to users and are usually hidden on forms, queries and reports • A surrogate key is often used in place of a composite primary key KROENKE and AUER - DATABASE CONCEPTS (5th Edition) Copyright ...
... numeric value that is added to a relation to serve as the primary key • Surrogate key values have no meaning to users and are usually hidden on forms, queries and reports • A surrogate key is often used in place of a composite primary key KROENKE and AUER - DATABASE CONCEPTS (5th Edition) Copyright ...
foreign key
... numeric value that is added to a relation to serve as the primary key • Surrogate key values have no meaning to users and are usually hidden on forms, queries and reports • A surrogate key is often used in place of a composite primary key KROENKE and AUER - DATABASE CONCEPTS (5th Edition) Copyright ...
... numeric value that is added to a relation to serve as the primary key • Surrogate key values have no meaning to users and are usually hidden on forms, queries and reports • A surrogate key is often used in place of a composite primary key KROENKE and AUER - DATABASE CONCEPTS (5th Edition) Copyright ...
Chapter 22
... If coordinator fails while the commit protocol for T is executing then participating sites must decide on T’s fate: If an active site contains a record in its log, then T must
be committed.
2. If an active site contains an record in its log, then T must
be aborted.
3. If some ac ...
... If coordinator fails while the commit protocol for T is executing then participating sites must decide on T’s fate: If an active site contains a
Question: 1 Which three methods can you use to run an Automatic
... Which three statements regarding the Policy Framework in Enterprise Manager (EM) are correct? (Choose three.) A. Policies are evaluated automatically by Enterprise Manager. B. Policy violations are prioritized as High, Medium, or Informational by category. C. Policies can be disabled completely, or ...
... Which three statements regarding the Policy Framework in Enterprise Manager (EM) are correct? (Choose three.) A. Policies are evaluated automatically by Enterprise Manager. B. Policy violations are prioritized as High, Medium, or Informational by category. C. Policies can be disabled completely, or ...
E - Read
... computing the cost of the operation in terms of disk access, by means of the cost formulae shown in chapter13 disk access is the predominant cost, and the number of block transfers from disk is used as a measure of the actual cost of evaluation. Database System Concepts - Chapter 14 Query Optimiza ...
... computing the cost of the operation in terms of disk access, by means of the cost formulae shown in chapter13 disk access is the predominant cost, and the number of block transfers from disk is used as a measure of the actual cost of evaluation. Database System Concepts - Chapter 14 Query Optimiza ...
