Document
... SQL we would not be able to efficiently test a functional dependency whose left hand side is not a key. ...
... SQL we would not be able to efficiently test a functional dependency whose left hand side is not a key. ...
Database Disaster Recovery using only RMAN Backups
... channel ORA_DISK_1: specifying datafile(s) to restore from backup set restoring datafile 00001 to C:\ORACLE\ORADATA\DBTEST\SYSTEM01.DBF restoring datafile 00002 to C:\ORACLE\ORADATA\DBTEST\UNDOTBS01.DBF restoring datafile 00003 to C:\ORACLE\ORADATA\DBTEST\SYSAUX01.DBF restoring datafile 00004 to C:\ ...
... channel ORA_DISK_1: specifying datafile(s) to restore from backup set restoring datafile 00001 to C:\ORACLE\ORADATA\DBTEST\SYSTEM01.DBF restoring datafile 00002 to C:\ORACLE\ORADATA\DBTEST\UNDOTBS01.DBF restoring datafile 00003 to C:\ORACLE\ORADATA\DBTEST\SYSAUX01.DBF restoring datafile 00004 to C:\ ...
Week 2 - Conceptual Database Design
... ! What information about these entities and relationships should we store in the database? ! What are the integrity constraints or business rules that hold? ...
... ! What information about these entities and relationships should we store in the database? ! What are the integrity constraints or business rules that hold? ...
Introduction to Database Systems
... Index maintenance overhead on updates to key fields. Choose indexes that can help many queries, if possible. Build indexes to support index-only strategies. Clustering is an important decision; only one index on a given relation can be clustered! Order of fields in composite index key can be importa ...
... Index maintenance overhead on updates to key fields. Choose indexes that can help many queries, if possible. Build indexes to support index-only strategies. Clustering is an important decision; only one index on a given relation can be clustered! Order of fields in composite index key can be importa ...
Document
... E.g. seconds vs. days in some cases Steps in cost-based query optimization 1. Generate logically equivalent expressions using equivalence rules 2. Annotate resultant expressions to get alternative query plans 3. Choose the cheapest plan based on estimated cost Estimation of plan cost based on: ...
... E.g. seconds vs. days in some cases Steps in cost-based query optimization 1. Generate logically equivalent expressions using equivalence rules 2. Annotate resultant expressions to get alternative query plans 3. Choose the cheapest plan based on estimated cost Estimation of plan cost based on: ...
27 - AIMMS
... Identifier selections in READ and WRITE statements form a one-to-one correspondence with a sparse set of records in the database table. During a READ statement the sparsity pattern is determined by all the records in the database table. During a WRITE statement the sparsity pattern is determined by ...
... Identifier selections in READ and WRITE statements form a one-to-one correspondence with a sparse set of records in the database table. During a READ statement the sparsity pattern is determined by all the records in the database table. During a WRITE statement the sparsity pattern is determined by ...
Essentials of Database Management Chapter 1 The Database
... , Analytic Skills, Communication Subtopic: Enforcement of Standards 24) A rule that CANNOT be violated by database users is called a: A) password. B) constraint. C) program. D) view. Answer: B Diff: 1 Page Ref: 12 Topic: Advantages of the Database Approach Subtopic: ...
... , Analytic Skills, Communication Subtopic: Enforcement of Standards 24) A rule that CANNOT be violated by database users is called a: A) password. B) constraint. C) program. D) view. Answer: B Diff: 1 Page Ref: 12 Topic: Advantages of the Database Approach Subtopic: ...
Indexing Relational Database Content Offline for
... by leveraging the database vendor’s integrated text search engine tool, we avoid transporting data outside the database for external processing, which can be expensive and difficult to synchronize, and we inherit all DBMS features automatically. DataSpot [5] extracts database content and builds an e ...
... by leveraging the database vendor’s integrated text search engine tool, we avoid transporting data outside the database for external processing, which can be expensive and difficult to synchronize, and we inherit all DBMS features automatically. DataSpot [5] extracts database content and builds an e ...
Chapter 19: Distributed Databases
... Database systems that run on each site are independent of each other Transactions may access data at one or more sites ...
... Database systems that run on each site are independent of each other Transactions may access data at one or more sites ...
ORACLE LECTURE SERIES
... • OLAP database (data warehouse). • Data warehouses do not contain mission-critical data and as such do not require response times as quick as OLTP databases. • OLAP databases rely on complex queries that must take millions of records into consideration for knowledge discovery. Copyright System Mana ...
... • OLAP database (data warehouse). • Data warehouses do not contain mission-critical data and as such do not require response times as quick as OLTP databases. • OLAP databases rely on complex queries that must take millions of records into consideration for knowledge discovery. Copyright System Mana ...
Oracle GoldenGate 11g Advanced Features and Best
... The same generic rule applies for group names (capture, extract data pump, and delivery components). GoldenGate maintains a history of ten process report files on disk. These report files take the group name and append the number 0 through 9 to them, with “group.rpt” being the current and then “grou ...
... The same generic rule applies for group names (capture, extract data pump, and delivery components). GoldenGate maintains a history of ten process report files on disk. These report files take the group name and append the number 0 through 9 to them, with “group.rpt” being the current and then “grou ...
Full Article
... frequency are of interest to users, “the practical usefulness of the frequent itemset mining is restricted by the significance of the discovered itemsets”. The AIS algorithm put forth by Agrawal et al. [1] in which only one item consequent association rules are generated, which means that the conseq ...
... frequency are of interest to users, “the practical usefulness of the frequent itemset mining is restricted by the significance of the discovered itemsets”. The AIS algorithm put forth by Agrawal et al. [1] in which only one item consequent association rules are generated, which means that the conseq ...
PHP MySQL Database
... PDO will work on 12 different database systems, where as MySQLi will only work with MySQL databases. So, if you have to switch your project to use another database, PDO makes the process easy. You only have to change the connection string and a few queries. With MySQLi, you will need to rewrite the ...
... PDO will work on 12 different database systems, where as MySQLi will only work with MySQL databases. So, if you have to switch your project to use another database, PDO makes the process easy. You only have to change the connection string and a few queries. With MySQLi, you will need to rewrite the ...
How to implement CDI ? M.Fichaut, V. Tosello
... Use the Mikado software to create the XML CDI files Make sure that you have the right « properties » files in the \mikado\conf directory files before running the software Change the connection to the database in the CDI.properties file, with the path to your local database Run Mikado Import ...
... Use the Mikado software to create the XML CDI files Make sure that you have the right « properties » files in the \mikado\conf directory files before running the software Change the connection to the database in the CDI.properties file, with the path to your local database Run Mikado Import ...
ORACLE EXADATA MACHINE X2
... with tremendous cost-savings and performance improvements due to reduced I/O. Typical storage savings can range from 10x to 15x. In addition, Exadata Database Machine is the world's most secure database system. Building on the high security capabilities in every Oracle Database, Exadata Database Mac ...
... with tremendous cost-savings and performance improvements due to reduced I/O. Typical storage savings can range from 10x to 15x. In addition, Exadata Database Machine is the world's most secure database system. Building on the high security capabilities in every Oracle Database, Exadata Database Mac ...
Standby Database
... • Standby database can actually be opened for queries, then return to recovery mode. This may facilitate off-loading large reports or other batch jobs, so that performance on primary database is not degraded. • Standby database will track actual production very closely--it will typically “lag” by on ...
... • Standby database can actually be opened for queries, then return to recovery mode. This may facilitate off-loading large reports or other batch jobs, so that performance on primary database is not degraded. • Standby database will track actual production very closely--it will typically “lag” by on ...
Setting Up a Hot Standby Database
... • Standby database can actually be opened for queries, then return to recovery mode. This may facilitate off-loading large reports or other batch jobs, so that performance on primary database is not degraded. • Standby database will track actual production very closely--it will typically “lag” by on ...
... • Standby database can actually be opened for queries, then return to recovery mode. This may facilitate off-loading large reports or other batch jobs, so that performance on primary database is not degraded. • Standby database will track actual production very closely--it will typically “lag” by on ...
3.1.1 The Structure of JDBC
... 3.1.3 Alternatives to JDBC Without JDBC, only disparate, proprietary database access solutions exist. These proprietary solutions force the developer to build a layer of abstraction on top of them in order to create database-independent code. Only after that abstraction layer is complete can the dev ...
... 3.1.3 Alternatives to JDBC Without JDBC, only disparate, proprietary database access solutions exist. These proprietary solutions force the developer to build a layer of abstraction on top of them in order to create database-independent code. Only after that abstraction layer is complete can the dev ...
ITD Database Design Phase Report
... wishes to develop a database which will contain all ITD-related information for all sites in the District. Currently, much of the information ITD sections need to maintain on District schools is either in a variety of incompatible database systems, individual spreadsheets or not in electronic format ...
... wishes to develop a database which will contain all ITD-related information for all sites in the District. Currently, much of the information ITD sections need to maintain on District schools is either in a variety of incompatible database systems, individual spreadsheets or not in electronic format ...
EFFICIENCY ISN’T ENOUGH: DATA CENTERS LEAD THE DRIVE TO INNOVATION
... For some enterprises, the opposite effect may be true. “Our problem may be reversed from most,” notes one respondent. “We are not given even the minimum amount of time needed for database and systems management, because we keep having new projects thrown at us and management does not understand the ...
... For some enterprises, the opposite effect may be true. “Our problem may be reversed from most,” notes one respondent. “We are not given even the minimum amount of time needed for database and systems management, because we keep having new projects thrown at us and management does not understand the ...
PowerPoint Template - exercise
... Relational model uses SQL to access the data. SQL language is well standardized and is largely the same across different database vendors. If you know how to write SQLs for Oracle, for example, you'll be able to also do so for DB/2, Informix, Sybase and others. It is often possible for applications ...
... Relational model uses SQL to access the data. SQL language is well standardized and is largely the same across different database vendors. If you know how to write SQLs for Oracle, for example, you'll be able to also do so for DB/2, Informix, Sybase and others. It is often possible for applications ...
Administering TRITON Databases
... the URL category property. For discovery transactions, forensics might include the host name and file name. Configure the size and location of the forensics repository in the Data module of TRITON Manager. Navigate to the Settings > Deployment > System Modules page and click Forensics Repository und ...
... the URL category property. For discovery transactions, forensics might include the host name and file name. Configure the size and location of the forensics repository in the Data module of TRITON Manager. Navigate to the Settings > Deployment > System Modules page and click Forensics Repository und ...
dept_name
... JDBC is a Java API for communicating with database systems supporting SQL JDBC supports a variety of features for querying and updating data, and for retrieving query results JDBC also supports metadata retrieval, such as querying about relations present in the database and the names and types of re ...
... JDBC is a Java API for communicating with database systems supporting SQL JDBC supports a variety of features for querying and updating data, and for retrieving query results JDBC also supports metadata retrieval, such as querying about relations present in the database and the names and types of re ...