Document
... extra insertion and deletion overhead, space overhead. Advantages of B+-trees outweigh disadvantages B+-trees are used extensively ...
... extra insertion and deletion overhead, space overhead. Advantages of B+-trees outweigh disadvantages B+-trees are used extensively ...
投影片 1
... the transaction time histories of relational databases can be stored and queried efficiently by using XML and SQL/XML. the query mapping, indexing, clustering, and compression techniques used to achieve performance levels well above those of a native XML DBMS. The approach of ArchIS can be used ...
... the transaction time histories of relational databases can be stored and queried efficiently by using XML and SQL/XML. the query mapping, indexing, clustering, and compression techniques used to achieve performance levels well above those of a native XML DBMS. The approach of ArchIS can be used ...
Oracle Database HA Technical Comparison
... For protection of data from various media failures, Oracle database offers Recovery Manager (RMAN), which is a comprehensive backup, restore and recovery solution for the Oracle database. With RMAN, backups of the Oracle database can be taken online, without requiring expensive downtime. Furthermore ...
... For protection of data from various media failures, Oracle database offers Recovery Manager (RMAN), which is a comprehensive backup, restore and recovery solution for the Oracle database. With RMAN, backups of the Oracle database can be taken online, without requiring expensive downtime. Furthermore ...
The Centerpiece for Modernasing IT Infrastructures and Business
... Support for PL/SQL language and OCI interoperability Replication for easy sharing of data ...
... Support for PL/SQL language and OCI interoperability Replication for easy sharing of data ...
Agile Product Lifecycle Management
... Agile can be distributed over a wide-area network with multiple servers or can be limited to one or two server computers with several client computers. In the latter case, Agile can usually be installed within a half day. However, network-based systems are inherently complex, and some installations ...
... Agile can be distributed over a wide-area network with multiple servers or can be limited to one or two server computers with several client computers. In the latter case, Agile can usually be installed within a half day. However, network-based systems are inherently complex, and some installations ...
mod-3
... The SQL data-definition language (DDL) allows the specification of information about relations, including: The schema for each relation. The domain of values associated with each attribute. Integrity constraints And as we will see later, also other information such as ...
... The SQL data-definition language (DDL) allows the specification of information about relations, including: The schema for each relation. The domain of values associated with each attribute. Integrity constraints And as we will see later, also other information such as ...
Prolog. Advanced Issues. Knowledge Representation, Reasoning
... z records are P ROLOG facts, z tables are P ROLOG collections of facts, z links can be representad as binary facts, z associative tables can be representad as collections binary facts, z SELECT – easily implemented by backtracking search and pattern matching, z all relational/set operations can be e ...
... z records are P ROLOG facts, z tables are P ROLOG collections of facts, z links can be representad as binary facts, z associative tables can be representad as collections binary facts, z SELECT – easily implemented by backtracking search and pattern matching, z all relational/set operations can be e ...
SQL Databases
... An action query usually performs maintenance and administrative tasks such as manipulating tables, users, environment, etc. ...
... An action query usually performs maintenance and administrative tasks such as manipulating tables, users, environment, etc. ...
7.3 Multiple DBs/Single DB
... commercial provider – model 3 above – then it will have to consider how many WSDBs it will authorise, in particular whether there will be only one provider or multiple providers. This question is not relevant under model 1, where the NRA decides to become the WSDB itself. Model 2 also seems better s ...
... commercial provider – model 3 above – then it will have to consider how many WSDBs it will authorise, in particular whether there will be only one provider or multiple providers. This question is not relevant under model 1, where the NRA decides to become the WSDB itself. Model 2 also seems better s ...
Best Practices for protecting Microsoft SQL Server
... The databases that you will be protecting must be part of Named Instances, and those SQL Instance names must be unique for your environment. For example, if Server A and Server B both have a SQL Instance called “Test”, the “Test” Instances cannot be replicated to the same Standby server. Note: The S ...
... The databases that you will be protecting must be part of Named Instances, and those SQL Instance names must be unique for your environment. For example, if Server A and Server B both have a SQL Instance called “Test”, the “Test” Instances cannot be replicated to the same Standby server. Note: The S ...
IPD - SQL Server - Best IT Documents
... IOPS and throughput requirements Database in new or existing instance? Will instance reside on existing server running SQL Server or new server? Number of servers required to support scale-out options, if selected Number of servers required to support faulttolerance option, if selected Failover clus ...
... IOPS and throughput requirements Database in new or existing instance? Will instance reside on existing server running SQL Server or new server? Number of servers required to support scale-out options, if selected Number of servers required to support faulttolerance option, if selected Failover clus ...
Part IV: Java Database Programming This part of the book discusses
... A Connection instance can be used to create various Statement objects for executing SQL statements and stored procedures using the createStatement() method. You can also use it to set transaction properties for the connection. By default the Connection instance automatically commits changes after ex ...
... A Connection instance can be used to create various Statement objects for executing SQL statements and stored procedures using the createStatement() method. You can also use it to set transaction properties for the connection. By default the Connection instance automatically commits changes after ex ...
XML Parsing: A Threat to Database Performance
... Separate ‘validation’ from ‘type annotation’. Type annotation of XML document nodes happens during schema validation. We suggest to let applications choose whether validation, type annotation, or both should be performed. For example, if the database receives XML from a trusted source then it may no ...
... Separate ‘validation’ from ‘type annotation’. Type annotation of XML document nodes happens during schema validation. We suggest to let applications choose whether validation, type annotation, or both should be performed. For example, if the database receives XML from a trusted source then it may no ...
as a PDF
... It is the policy of Bellcore to avoid any statements of comparative analysis or evaluation of vendors’ products. Any mention of products or vendors in this document is done where necessary for the sake of scientific accuracy and precision, or for background information to a point of technology analy ...
... It is the policy of Bellcore to avoid any statements of comparative analysis or evaluation of vendors’ products. Any mention of products or vendors in this document is done where necessary for the sake of scientific accuracy and precision, or for background information to a point of technology analy ...
Document
... The for Statement • Includes three expressions separated by semicolons • Incorporates facilities for initializing a counter and incrementing it on each turn through the code block ...
... The for Statement • Includes three expressions separated by semicolons • Incorporates facilities for initializing a counter and incrementing it on each turn through the code block ...
Database Installation Guide
... Agile can be distributed over a wide-area network with multiple servers or can be limited to one or two server computers with several client computers. In the latter case, Agile can usually be installed within a half day. However, network-based systems are inherently complex, and some installations ...
... Agile can be distributed over a wide-area network with multiple servers or can be limited to one or two server computers with several client computers. In the latter case, Agile can usually be installed within a half day. However, network-based systems are inherently complex, and some installations ...
Hit the Ground Running Oracle 10gR2 RAC on Linux Chris Page ( )
... Indicate that this is a cluster installation ...
... Indicate that this is a cluster installation ...
ppt
... Cost to write a block is greater than cost to read a block – data is read back after being written to ensure that the write was successful ...
... Cost to write a block is greater than cost to read a block – data is read back after being written to ensure that the write was successful ...
Intro to Databases and MySQL - Faculty
... Databases and the Client/Server Model • Database systems typically reside on the server, but are not as part of the software providing server functionality. • An interface must exist between server software and the database. • Three tier architecture – Server/client model adds middle layer that han ...
... Databases and the Client/Server Model • Database systems typically reside on the server, but are not as part of the software providing server functionality. • An interface must exist between server software and the database. • Three tier architecture – Server/client model adds middle layer that han ...
Getting Started with Base - The Document Foundation Wiki
... Consider an address book. Usually, the data in an address book can be divided into groups based upon the relationships between the data. For example, all the first names are put into one group. Other groups can include last names, spouse names, addresses, phone numbers, birthdays, and so on. You pro ...
... Consider an address book. Usually, the data in an address book can be divided into groups based upon the relationships between the data. For example, all the first names are put into one group. Other groups can include last names, spouse names, addresses, phone numbers, birthdays, and so on. You pro ...
Sort Heap - WordPress.com
... last reset time and computed average time applications waited for locks. If lock wait and this parameter are high, you have concurrency issues. Monitor and find application sequencing problems if deadlocks occur frequently. Not necessarily a problem but if occur constantly investigate application pr ...
... last reset time and computed average time applications waited for locks. If lock wait and this parameter are high, you have concurrency issues. Monitor and find application sequencing problems if deadlocks occur frequently. Not necessarily a problem but if occur constantly investigate application pr ...