Chapter 21:Application Development and Administration
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
Deleting V5 Folders
... “How-to” Guide Deleting V5 Folders Table of Contents Deleting V5 Folders ........................................................................................................................ 2 X3 Console – deselect the folder’s publication ......................................................... ...
... “How-to” Guide Deleting V5 Folders Table of Contents Deleting V5 Folders ........................................................................................................................ 2 X3 Console – deselect the folder’s publication ......................................................... ...
Avoiding Common Traps When Accessing RDBMS Data
... reference to a native SAS data set library, you can expect to get the following lengthy but somewhat cryptic message: ERROR: The OLEDB table class has been opened for OUTPUT. This table already exists, or there is a name conflict with an existing object. This table will not be replaced. This engine ...
... reference to a native SAS data set library, you can expect to get the following lengthy but somewhat cryptic message: ERROR: The OLEDB table class has been opened for OUTPUT. This table already exists, or there is a name conflict with an existing object. This table will not be replaced. This engine ...
TRIGGER trigger_name
... The previous trigger is used to keep track of all the transactions performed on the employee table. If any employee is deleted, a new row containing the details of this employee is stored in a table called xemployee. Similarly, if a new employee is inserted, a new row is created in another table cal ...
... The previous trigger is used to keep track of all the transactions performed on the employee table. If any employee is deleted, a new row containing the details of this employee is stored in a table called xemployee. Similarly, if a new employee is inserted, a new row is created in another table cal ...
Chapter 4 Implementation of Relational Operators
... The performance of a query plan is determined largely by the order in which the tables are joined. For example, when joining 3 tables A, B, C of size 10 rows, 10,000 rows, and 1,000,000 rows, respectively, a query plan that joins B and C first can take several orders-of-magnitude more time to execut ...
... The performance of a query plan is determined largely by the order in which the tables are joined. For example, when joining 3 tables A, B, C of size 10 rows, 10,000 rows, and 1,000,000 rows, respectively, a query plan that joins B and C first can take several orders-of-magnitude more time to execut ...
Best Practices - Pivotal Greenplum Database Documentation
... Greenplum Database Best Practices Guide describes best practices for Greenplum Database. A best practice is a method or technique that has consistently shown results superior to those achieved with other means. Best practices are found through experience and are proven to reliably lead to a desired ...
... Greenplum Database Best Practices Guide describes best practices for Greenplum Database. A best practice is a method or technique that has consistently shown results superior to those achieved with other means. Best practices are found through experience and are proven to reliably lead to a desired ...
Data and Database Design Standards for SQL Server FLORIDA DEPARTMENT OF TRANSPORTATION
... Each index must contain at least one column. Each table must contain a primary key index. Each table must contain a primary key constraint. Each foreign key must contain a foreign key constraint. Overlapping indexes shall not be generated. The primary key index column order must match the order of t ...
... Each index must contain at least one column. Each table must contain a primary key index. Each table must contain a primary key constraint. Each foreign key must contain a foreign key constraint. Overlapping indexes shall not be generated. The primary key index column order must match the order of t ...
ppt - Avi Silberschatz
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
RescueNet FireRMS SQL Utilities Guide
... application enables you to schedule, track, test, and manage department equipment and apparatus. Online Help The client and the server applications contain online Help files that describe the user interface. RescueNet FireRMS NEMSIS User Guide Describes how you can collect EMS and demographics d ...
... application enables you to schedule, track, test, and manage department equipment and apparatus. Online Help The client and the server applications contain online Help files that describe the user interface. RescueNet FireRMS NEMSIS User Guide Describes how you can collect EMS and demographics d ...
Optimistic Concurrency Control in a Distributed NameNode
... lock to block each other. Therefore, the parent directory becomes a contention point. We design a test for the parent directory contention assessment. We build a thread pool with size 1024 for clients. We have three tests with 1000, 10000 and 100000 concurrent clients separately. Each client creates ...
... lock to block each other. Therefore, the parent directory becomes a contention point. We design a test for the parent directory contention assessment. We build a thread pool with size 1024 for clients. We have three tests with 1000, 10000 and 100000 concurrent clients separately. Each client creates ...
database management systems in engineering
... The initial application of database technology to the engineering computing environment solves some of the simpler needs of engineering applications. Database management systems provide data representation capabilities that decouple the logical format for data representation from an inflexible file ...
... The initial application of database technology to the engineering computing environment solves some of the simpler needs of engineering applications. Database management systems provide data representation capabilities that decouple the logical format for data representation from an inflexible file ...
Molecular Biology Databases: An Overview
... with by similarity and biology links (cf. Section 3) is often insufficient. Furthermore, such links are inefficient to manage: If n databases are to be linked this way, then the information to collect and to update is distributed over the n databases. The “meta-database” DBcat [20] is a better appro ...
... with by similarity and biology links (cf. Section 3) is often insufficient. Furthermore, such links are inefficient to manage: If n databases are to be linked this way, then the information to collect and to update is distributed over the n databases. The “meta-database” DBcat [20] is a better appro ...
CH10
... of rows (records) and columns (fields). These tables are related by keys. The primary key in a table is the one that uniquely identifies each of the rows in the table. A foreign key is used to relate the rows in one table to the rows in another table. When you create a table, you define each o ...
... of rows (records) and columns (fields). These tables are related by keys. The primary key in a table is the one that uniquely identifies each of the rows in the table. A foreign key is used to relate the rows in one table to the rows in another table. When you create a table, you define each o ...
transactions_and_recovery
... [start,]: the start of the
execution of the transaction identified
by transaction-id
[read, , X]: the
transaction identified by transaction-id
reads the value of database item X
[write, , X, old-value,
new-value]: the transaction identified by
transac ...
... [start,
Ontology-based Geographic Data Access in a Peer Data
... On the other hand, an usual ontology is composed by concepts, properties, axioms and, optionally, instances. In order to deal with query reformulation, considering the vertical access shown in Figure 1, we have to deal with the correspondences between the peer ontology elements and their correspondi ...
... On the other hand, an usual ontology is composed by concepts, properties, axioms and, optionally, instances. In order to deal with query reformulation, considering the vertical access shown in Figure 1, we have to deal with the correspondences between the peer ontology elements and their correspondi ...
Presented by Kaberi Nayak Senior Oracle Apps DBA
... Check overall basic application services and components Backup new 11g R2 OH software and the database Release environment for testing by developers, Users, Q&A ...
... Check overall basic application services and components Backup new 11g R2 OH software and the database Release environment for testing by developers, Users, Q&A ...
Multi-Layered DB Application
... potentially very large number of layers (though in practice, 3 to five layers is the most common) such as an industry layer, an industry segment layer, then an individual company or user layer. A client views their data, as a unique slice through these layers. The user’s data is always stored in dat ...
... potentially very large number of layers (though in practice, 3 to five layers is the most common) such as an industry layer, an industry segment layer, then an individual company or user layer. A client views their data, as a unique slice through these layers. The user’s data is always stored in dat ...
ppt
... where one node may be running relational database system under UNIX, another may be running object-oriented system under Windows and so on. • A transaction may run in a distributed fashion at multiple nodes. • In this execution scenario the transaction commits only when all these multiple nodes agre ...
... where one node may be running relational database system under UNIX, another may be running object-oriented system under Windows and so on. • A transaction may run in a distributed fashion at multiple nodes. • In this execution scenario the transaction commits only when all these multiple nodes agre ...
1. Introduction to SQL Tuning
... and how the Oracle optimizer works. Also, parallelization is critical, especially in multi-CPU environments. Ø Memory Processes - You must understand the purpose of the shared pool and database buffer cache. Ø Database Objects - It is not possible to tune an SQL statement without understanding index ...
... and how the Oracle optimizer works. Also, parallelization is critical, especially in multi-CPU environments. Ø Memory Processes - You must understand the purpose of the shared pool and database buffer cache. Ø Database Objects - It is not possible to tune an SQL statement without understanding index ...
