(A) R
... E.g. Set of accounts stored with each customer, and set of owners stored with each account We assume all relations are in first normal form ...
... E.g. Set of accounts stored with each customer, and set of owners stored with each account We assume all relations are in first normal form ...
Chapter 14: Query Optimization
... expressions equivalent to the given expression Conceptually, generate all equivalent expressions by repeatedly executing the following step until no more expressions can be found: for each expression found so far, use all applicable equivalence rules, and add newly generated expressions to the s ...
... expressions equivalent to the given expression Conceptually, generate all equivalent expressions by repeatedly executing the following step until no more expressions can be found: for each expression found so far, use all applicable equivalence rules, and add newly generated expressions to the s ...
ppt
... • Equivalent expressions • Different algorithms for each operation (Chapter 13) • Cost difference between a good and a bad way of evaluating a query can be enormous • Example: performing a r X s followed by a selection r.A = s.B is much slower than performing a join on the same condition • Need to e ...
... • Equivalent expressions • Different algorithms for each operation (Chapter 13) • Cost difference between a good and a bad way of evaluating a query can be enormous • Example: performing a r X s followed by a selection r.A = s.B is much slower than performing a join on the same condition • Need to e ...
Effective Usage of SQL Server 2005 Database Mirroring
... Principal Consultant & Director – SSQA.net Limited (www.ssqa-net.co.uk) ...
... Principal Consultant & Director – SSQA.net Limited (www.ssqa-net.co.uk) ...
Document
... interaction with programming language compiler, global query optimization, structuring of complex objects from the data in the buffers, ... ...
... interaction with programming language compiler, global query optimization, structuring of complex objects from the data in the buffers, ... ...
Oracle DB Security
... PASSWORD_REUS number of times a password must be changed before a previous password E_MAX can be used again. Default is unlimited. PASSWORD_LOC number of days an account will remain locked after failed login K_TIME attempts has been triggered. Default is 1 day. PASSWORD_GRA number of grace days for ...
... PASSWORD_REUS number of times a password must be changed before a previous password E_MAX can be used again. Default is unlimited. PASSWORD_LOC number of days an account will remain locked after failed login K_TIME attempts has been triggered. Default is 1 day. PASSWORD_GRA number of grace days for ...
here.
... Note: predicates in the having clause are applied after the formation of groups whereas predicates in the where clause are applied before forming groups Most general of this type is select, from, where, group by, having ...
... Note: predicates in the having clause are applied after the formation of groups whereas predicates in the where clause are applied before forming groups Most general of this type is select, from, where, group by, having ...
LabVIEW Database Connectivity Toolkit User Manual
... Other product and company names mentioned herein are trademarks or trade names of their respective companies. Members of the National Instruments Alliance Partner Program are business entities independent from National Instruments and have no agency, partnership, or joint-venture relationship with N ...
... Other product and company names mentioned herein are trademarks or trade names of their respective companies. Members of the National Instruments Alliance Partner Program are business entities independent from National Instruments and have no agency, partnership, or joint-venture relationship with N ...
Temporal Integrity Constraints
... Consider a database history to which a new state is added whenever the database is updated. Consistency is checked whenever a tentative update reaches the database. If the update would result in an inconsistent database history, it is rejected; otherwise the new database state is added to the databa ...
... Consider a database history to which a new state is added whenever the database is updated. Consistency is checked whenever a tentative update reaches the database. If the update would result in an inconsistent database history, it is rejected; otherwise the new database state is added to the databa ...
LabVIEW Database Connectivity Toolkit User Manual
... Other product and company names mentioned herein are trademarks or trade names of their respective companies. Members of the National Instruments Alliance Partner Program are business entities independent from National Instruments and have no agency, partnership, or joint-venture relationship with N ...
... Other product and company names mentioned herein are trademarks or trade names of their respective companies. Members of the National Instruments Alliance Partner Program are business entities independent from National Instruments and have no agency, partnership, or joint-venture relationship with N ...
Evaluating and Comparing Oracle Database Appliance X6
... Database and Schema Setup The tests outlined in this document were performed with Oracle Appliance Manager 12.1.2.8 image running Oracle Database release 12.1.0.2. When comparing the performance of Oracle Database Appliance X6-2S/X6-2M/X6-2L against a non-Oracle Database Appliance environment, these ...
... Database and Schema Setup The tests outlined in this document were performed with Oracle Appliance Manager 12.1.2.8 image running Oracle Database release 12.1.0.2. When comparing the performance of Oracle Database Appliance X6-2S/X6-2M/X6-2L against a non-Oracle Database Appliance environment, these ...
ORACLE EXADATA MACHINE X2
... system. It provides a unified view of hardware and software where you can view hardware components such as compute nodes, Exadata cells, and InfiniBand switches and see the placement of software running on them along with their resource utilization. DBAs can also drill down from the database to the ...
... system. It provides a unified view of hardware and software where you can view hardware components such as compute nodes, Exadata cells, and InfiniBand switches and see the placement of software running on them along with their resource utilization. DBAs can also drill down from the database to the ...
Oracle9i
... If a match, the data file is up to date If redo log file has higher SCN, changes are reapplied to the data file from the redo log file ...
... If a match, the data file is up to date If redo log file has higher SCN, changes are reapplied to the data file from the redo log file ...
EBS SIG - ATSSIG Home
... The Check Config tool (adchkcfg) is used to identify the potential changes that would take effect on an EBS customer instance during the next AutoConfig run. The tool has been enhanced to report important database updates, generate a text report for database changes, and offer improved readability o ...
... The Check Config tool (adchkcfg) is used to identify the potential changes that would take effect on an EBS customer instance during the next AutoConfig run. The tool has been enhanced to report important database updates, generate a text report for database changes, and offer improved readability o ...
Chapter 21:Application Development and Administration
... Nodegroups can be defined to support table partitioning across a specific set of nodes in a multinode system → Flexibility in allocating table partitions ex) Large tables may be partitioned across all nodes in a system Small tables may reside on a single node ...
... Nodegroups can be defined to support table partitioning across a specific set of nodes in a multinode system → Flexibility in allocating table partitions ex) Large tables may be partitioned across all nodes in a system Small tables may reside on a single node ...
Chapter 7: Relational Database Design
... for each functional dependency f in F+ apply reflexivity and augmentation rules on f add the resulting functional dependencies to F+ for each pair of functional dependencies f1and f2 in F+ if f1 and f2 can be combined using transitivity then add the resulting functional dependency to F+ until F+ doe ...
... for each functional dependency f in F+ apply reflexivity and augmentation rules on f add the resulting functional dependencies to F+ for each pair of functional dependencies f1and f2 in F+ if f1 and f2 can be combined using transitivity then add the resulting functional dependency to F+ until F+ doe ...
Database Communication in LabVIEW
... inputs and outputs for the given node through the connector pane. This implies each VI can be easily tested before being embedded as a subroutine into a larger program. The graphical approach also allows non-programmers to build programs simply by dragging and dropping virtual representations of ...
... inputs and outputs for the given node through the connector pane. This implies each VI can be easily tested before being embedded as a subroutine into a larger program. The graphical approach also allows non-programmers to build programs simply by dragging and dropping virtual representations of ...
A,r
... for each expression found so far, use all applicable equivalence rules add newly generated expressions to the set of expressions found so far The above approach is very expensive in space and time Space requirements reduced by sharing common subexpressions: ...
... for each expression found so far, use all applicable equivalence rules add newly generated expressions to the set of expressions found so far The above approach is very expensive in space and time Space requirements reduced by sharing common subexpressions: ...