ch2 copy
... indivisible (note how this differs from ER modeling). Multi-valued attribute values are not atomic. Composite attribute values are not atomic. ...
... indivisible (note how this differs from ER modeling). Multi-valued attribute values are not atomic. Composite attribute values are not atomic. ...
Whois queries in RIPE database v3.0
... During this type of connection the server will keep state for some internal variables. Currently state is only kept for the list of sources to query. To exit a persistent connection, send the -k flag as the only query argument to the server or an empty query (nn). ...
... During this type of connection the server will keep state for some internal variables. Currently state is only kept for the list of sources to query. To exit a persistent connection, send the -k flag as the only query argument to the server or an empty query (nn). ...
Modeling and Querying Moving Objects
... state. For example, ”Display the motels that I will reach within 3 minutes ” refers to all the states with a time-stamp between now and three minutes later. Obviously, since an instantaneous query is evaluated on an infinite history, its answer may be infinite. For example, the query: ”Display the t ...
... state. For example, ”Display the motels that I will reach within 3 minutes ” refers to all the states with a time-stamp between now and three minutes later. Obviously, since an instantaneous query is evaluated on an infinite history, its answer may be infinite. For example, the query: ”Display the t ...
Advantage Database Server for Visual FoxPro
... Visual FoxPro is a wonderful development tool. Its rich object-orientation, powerful language features, integrated report writer, and open and extendible interactive development environment (IDE) make it one of the best tools available for developing desktop applications. However, its built-in data ...
... Visual FoxPro is a wonderful development tool. Its rich object-orientation, powerful language features, integrated report writer, and open and extendible interactive development environment (IDE) make it one of the best tools available for developing desktop applications. However, its built-in data ...
The object-oriented database and processing of electronic warfare data Lee, J. J.
... The views expressed in this thesis are those of the author and do not reflect the official policy or position of the Department of Defense or the United States Government. ...
... The views expressed in this thesis are those of the author and do not reflect the official policy or position of the Department of Defense or the United States Government. ...
MySQL Cluster - UniForum Chicago
... SANTA CRUZ, CA, October 18, 2005 - Open source database deployments are up more than 20% in the last six months, according to Evans Data’s Fall 2005 Database Development Survey. MySQL use, for example, has increased by more than 25% in six months and is approaching a majority in the database space, ...
... SANTA CRUZ, CA, October 18, 2005 - Open source database deployments are up more than 20% in the last six months, according to Evans Data’s Fall 2005 Database Development Survey. MySQL use, for example, has increased by more than 25% in six months and is approaching a majority in the database space, ...
Best Practices IBMr Building a Recovery Strategy for an
... Using the recommendations in this paper will help you develop a strategy that meets current needs but is also scalable and flexible so that it meets future needs. You can see the impact of a poorly designed backup and recovery solution not only when you require a recovery, but also in the performanc ...
... Using the recommendations in this paper will help you develop a strategy that meets current needs but is also scalable and flexible so that it meets future needs. You can see the impact of a poorly designed backup and recovery solution not only when you require a recovery, but also in the performanc ...
Scaling Hibernate Applications with Postgres
... • Really, why is this a problem? – None of the updates can leverage HOT if there are indexes on the table • This can cause table and index bloat for frequently updated tables • Adds additional maintenance overhead to the database to clean up the bloat ...
... • Really, why is this a problem? – None of the updates can leverage HOT if there are indexes on the table • This can cause table and index bloat for frequently updated tables • Adds additional maintenance overhead to the database to clean up the bloat ...
accessing databases with jdbc - Core Servlets and JavaServer Pages
... can use a Statement object to create parameterized queries by which values are supplied to a precompiled fixed-format query. See Section 17.4 (Using Prepared Statements) for details. ...
... can use a Statement object to create parameterized queries by which values are supplied to a precompiled fixed-format query. See Section 17.4 (Using Prepared Statements) for details. ...
Chapter 2: Relational Model
... key of another relation. The attribute is called a foreign key. E.g. customer_name and account_number attributes of depositor are foreign keys to customer and account respectively. Only values occurring in the primary key attribute of the referenced relation may occur in the foreign key attribut ...
... key of another relation. The attribute is called a foreign key. E.g. customer_name and account_number attributes of depositor are foreign keys to customer and account respectively. Only values occurring in the primary key attribute of the referenced relation may occur in the foreign key attribut ...
Databases and LINQ
... Windows > Database Explorer to display the Database Explorer window. By default, it appears on the left side of the IDE. If you’re using a full version of Visual Studio, select View > Server Explorer to display the Server Explorer. From this point forward, we’ll refer to the Database Explorer. If yo ...
... Windows > Database Explorer to display the Database Explorer window. By default, it appears on the left side of the IDE. If you’re using a full version of Visual Studio, select View > Server Explorer to display the Server Explorer. From this point forward, we’ll refer to the Database Explorer. If yo ...
Document
... Suppose that students are given roll numbers which are strings of the form CS0012 or EE1127 ...
... Suppose that students are given roll numbers which are strings of the form CS0012 or EE1127 ...
CPS Backup and Restore Guide
... Existing configurations will be lost if not properly backed up as described in the previous section. To redeploy the entire Cluster Manager VM, follow the steps in the Deploy the Cluster Manager VM section of the CPS Installation Guide to redeploy a new Cluster Manager VM. To restore the previously ...
... Existing configurations will be lost if not properly backed up as described in the previous section. To redeploy the entire Cluster Manager VM, follow the steps in the Deploy the Cluster Manager VM section of the CPS Installation Guide to redeploy a new Cluster Manager VM. To restore the previously ...
KorthDB6_ch7
... That is, extra attribute can be added to either of the tables corresponding to the two entity sets If participation is partial on the “many” side, replacing a schema by an extra attribute in the schema corresponding to the “many” side could result in null values The schema corresponding to a r ...
... That is, extra attribute can be added to either of the tables corresponding to the two entity sets If participation is partial on the “many” side, replacing a schema by an extra attribute in the schema corresponding to the “many” side could result in null values The schema corresponding to a r ...
ppt
... loan_amt_br = (loan_number, amount, branch_name) No repetition (as suggested by example below) ...
... loan_amt_br = (loan_number, amount, branch_name) No repetition (as suggested by example below) ...
Upgrade from Oracle9i to Oracle Database 11g
... An Oracle database upgrade is often considered as a risky task by database IT people. Upgrade tests have to be run, all applications have to be verified and validated in the new database environment and performance at the same level or better has to be ensured and achieved. Upgrading directly from O ...
... An Oracle database upgrade is often considered as a risky task by database IT people. Upgrade tests have to be run, all applications have to be verified and validated in the new database environment and performance at the same level or better has to be ensured and achieved. Upgrading directly from O ...
pdf-2
... transactions active at the time of the failure. ! Log contain record: site executes redo (T)
! Log contains record: site executes undo (T)
! Log contains record: site must consult Ci to determine
...
... transactions active at the time of the failure. ! Log contain
Distributed Databases
... Availability: failure of site containing relation r does not result in unavailability of r is replicas exist. Parallelism: queries on r may be processed by several nodes in parallel. Reduced data transfer: relation r is available locally at each site containing a replica of r. Disadvantages ...
... Availability: failure of site containing relation r does not result in unavailability of r is replicas exist. Parallelism: queries on r may be processed by several nodes in parallel. Reduced data transfer: relation r is available locally at each site containing a replica of r. Disadvantages ...
Disaster Recovery Plan
... The most important aspect of SAP R/3 implementation at PIFRA is establishing an effective backup and recovery strategy. This process entails a restore of all, or part of the database after hardware or software errors and a recovery to which the PIFRA System(s) is updated to a point just before the f ...
... The most important aspect of SAP R/3 implementation at PIFRA is establishing an effective backup and recovery strategy. This process entails a restore of all, or part of the database after hardware or software errors and a recovery to which the PIFRA System(s) is updated to a point just before the f ...
Chapter 19: Distributed Databases
... Availability: failure of site containing relation r does not result in unavailability of r is replicas exist. Parallelism: queries on r may be processed by several nodes in parallel. Reduced data transfer: relation r is available locally at each site containing a replica of r. Disadvantages ...
... Availability: failure of site containing relation r does not result in unavailability of r is replicas exist. Parallelism: queries on r may be processed by several nodes in parallel. Reduced data transfer: relation r is available locally at each site containing a replica of r. Disadvantages ...
T - VUB STARLab
... In phase 2 coordinator makes a decision as in 2PC (called the pre-commit decision) and records it in multiple (at least K) sites In phase 3, coordinator sends commit/abort message to all participating sites, ...
... In phase 2 coordinator makes a decision as in 2PC (called the pre-commit decision) and records it in multiple (at least K) sites In phase 3, coordinator sends commit/abort message to all participating sites, ...