chap17
... used to determine record keys When the relationship is one-to-many, the primary key of the file at the one end of the relationship should be contained as a foreign key on the file at the many end of the relationship A many-to-many relationship should be divided into two one-to-many relationships w ...
... used to determine record keys When the relationship is one-to-many, the primary key of the file at the one end of the relationship should be contained as a foreign key on the file at the many end of the relationship A many-to-many relationship should be divided into two one-to-many relationships w ...
Multi-Dimensional Clustering: a new data layout
... the table are stored in blocks, which contain an extent’s worth of consecutive pages on disk. In the diagram, a block is represented by a shaded oval, and is numbered according to the logical order of allocated extents in the table. We only show a few blocks of data for the cell identified by the di ...
... the table are stored in blocks, which contain an extent’s worth of consecutive pages on disk. In the diagram, a block is represented by a shaded oval, and is numbered according to the logical order of allocated extents in the table. We only show a few blocks of data for the cell identified by the di ...
Chapter 14: Concurrency Control
... release its lock on B, while executing lock-X(A) causes T3 to wait for T4 to release its lock on A. Such a situation is called a deadlock. To handle a deadlock one of T3 or T4 must be rolled back and its locks must be released. ...
... release its lock on B, while executing lock-X(A) causes T3 to wait for T4 to release its lock on A. Such a situation is called a deadlock. To handle a deadlock one of T3 or T4 must be rolled back and its locks must be released. ...
4_sql_recovery_1
... began. An Oracle query never reads dirty (uncommitted) data. – Because Oracle does not prevent other transactions from modifying the data read by a query, that data can be changed by other transactions between two executions of the query. Thus, a transaction that runs a given query twice can experie ...
... began. An Oracle query never reads dirty (uncommitted) data. – Because Oracle does not prevent other transactions from modifying the data read by a query, that data can be changed by other transactions between two executions of the query. Thus, a transaction that runs a given query twice can experie ...
Microsoft SQL 2012 MCSA 9 Day
... Describe the benefits to using window functions. Restrict window functions to rows defined in an OVER clause, including partitions and frames. Write queries which use window functions to operate on a window of rows and return ranking, aggregation and offset comparison results. Module 14: Pivot ...
... Describe the benefits to using window functions. Restrict window functions to rows defined in an OVER clause, including partitions and frames. Write queries which use window functions to operate on a window of rows and return ranking, aggregation and offset comparison results. Module 14: Pivot ...
Upgrade your Complex DB2 Environment
... $ ./dasmigr db2as mydas1 DBI1052E You must be root to execute this program. Explanation: This program can only be run under the root user ID. Special privileges are required to execute this program. User Response: Login as root and issue the command again. ...
... $ ./dasmigr db2as mydas1 DBI1052E You must be root to execute this program. Explanation: This program can only be run under the root user ID. Special privileges are required to execute this program. User Response: Login as root and issue the command again. ...
MODELING MOVEMENT RELATIONS IN DYNAMIC URBAN SCENES
... for video generalization are the ones describing the behaviors of the moving objects in time. We consider the spatiotemporal space of a scene as comprising two (x,y) spatial dimensions and one (t) temporal dimension. Object movements are identified by tracing objects in this 3-dimensional (x, y, t) ...
... for video generalization are the ones describing the behaviors of the moving objects in time. We consider the spatiotemporal space of a scene as comprising two (x,y) spatial dimensions and one (t) temporal dimension. Object movements are identified by tracing objects in this 3-dimensional (x, y, t) ...
computing candidate keys of relational operators for optimizing
... and workflow management systems is not entered manually by a user, but is derived from existing data using complex transformations. Understanding the semantics of such data and estimating its quality is not possible without extensive knowledge about the data’s origin and the transformations that wer ...
... and workflow management systems is not entered manually by a user, but is derived from existing data using complex transformations. Understanding the semantics of such data and estimating its quality is not possible without extensive knowledge about the data’s origin and the transformations that wer ...
from instructor - Computer Science
... The select clause can contain arithmetic expressions involving the operation, +, –, , and /, and operating on constants or attributes of tuples. The query: select ID, name, salary/12 from instructor would return a relation that is the same as the instructor relation, except that the value of the at ...
... The select clause can contain arithmetic expressions involving the operation, +, –, , and /, and operating on constants or attributes of tuples. The query: select ID, name, salary/12 from instructor would return a relation that is the same as the instructor relation, except that the value of the at ...
Calvin: Fast Distributed Transactions for Partitioned Database Systems
... any storage system that implements a basic CRUD interface (create/insert, read, update, and delete). Although it is possible to run Calvin on top of distributed non-transactional storage systems such as SimpleDB or Cassandra, it is more straightforward to explain the architecture of Calvin assuming ...
... any storage system that implements a basic CRUD interface (create/insert, read, update, and delete). Although it is possible to run Calvin on top of distributed non-transactional storage systems such as SimpleDB or Cassandra, it is more straightforward to explain the architecture of Calvin assuming ...
Oracle and Sybase, Concepts and Contrasts
... As can be seen from figures 2 and 3, the structures used internally differ between Oracle and ASE, but the purpose of these structures is similar. The structures in memory store buffers, execution plans, and state information for clients and server tasks. Structures on disk store the rows of data, ...
... As can be seen from figures 2 and 3, the structures used internally differ between Oracle and ASE, but the purpose of these structures is similar. The structures in memory store buffers, execution plans, and state information for clients and server tasks. Structures on disk store the rows of data, ...
DBA_Tasks_SOX_Audit_10072007
... BH1234 with System Administrator responsibility No further password issues ...
... BH1234 with System Administrator responsibility No further password issues ...
Oracle 10g (OCP) Certification Preparation
... – You can upgrade an earlier release of Oracle to Oracle 10g by using direct or indirect methods. Depending on the method will determine whether you use the manual and/or DBUA utility to perform the upgrade. ...
... – You can upgrade an earlier release of Oracle to Oracle 10g by using direct or indirect methods. Depending on the method will determine whether you use the manual and/or DBUA utility to perform the upgrade. ...
Making the Cloud Work for You
... The Webserver still runs on the LAMP stack, but all tables are stored in Amazon S3. In fact, this is not just a LAMP, but the modern cloud-based version if it – LAMPS3. The database does not use any storage on the local disk; it’s stored in highly available and highly reliable cloud storage. The Web ...
... The Webserver still runs on the LAMP stack, but all tables are stored in Amazon S3. In fact, this is not just a LAMP, but the modern cloud-based version if it – LAMPS3. The database does not use any storage on the local disk; it’s stored in highly available and highly reliable cloud storage. The Web ...
LN3
... – The USA_phone_numbers may have a format: (ddd)ddd-dddd where each d is a decimal digit. ...
... – The USA_phone_numbers may have a format: (ddd)ddd-dddd where each d is a decimal digit. ...
Configuration Database Backup Guide
... Regardless of the Ocularis feature set used (Ocularis PS, Ocularis IS, Ocularis CS, Ocularis LS or Ocularis ES), the Ocularis Base component uses a Microsoft SQL Server 2008 Express database to store configuration and authentication resources used by Ocularis (as of Ocularis v3.8). This SQL database ...
... Regardless of the Ocularis feature set used (Ocularis PS, Ocularis IS, Ocularis CS, Ocularis LS or Ocularis ES), the Ocularis Base component uses a Microsoft SQL Server 2008 Express database to store configuration and authentication resources used by Ocularis (as of Ocularis v3.8). This SQL database ...
Chapter 4: SQL - CSE, IIT Bombay
... select distinct T.customer_name from depositor as T where not unique ( select R.customer_name from account, depositor as R where T.customer_name = R.customer_name and R.account_number = account.account_number and account.branch_name = 'Perryridge') Variable from outer level is known as a correlati ...
... select distinct T.customer_name from depositor as T where not unique ( select R.customer_name from account, depositor as R where T.customer_name = R.customer_name and R.account_number = account.account_number and account.branch_name = 'Perryridge') Variable from outer level is known as a correlati ...
Chapter 4: SQL
... select distinct T.customer_name from depositor as T where not unique ( select R.customer_name from account, depositor as R where T.customer_name = R.customer_name and R.account_number = account.account_number and account.branch_name = 'Perryridge') Variable from outer level is known as a correlati ...
... select distinct T.customer_name from depositor as T where not unique ( select R.customer_name from account, depositor as R where T.customer_name = R.customer_name and R.account_number = account.account_number and account.branch_name = 'Perryridge') Variable from outer level is known as a correlati ...
www.hope.ac.uk Faculty of Sciences and Social Sciences HOPE
... could use SQL statements to create the database and the tables within the database, a utility called phpMyAdmin offers an GUI to do the same task. www.hope.ac.uk ...
... could use SQL statements to create the database and the tables within the database, a utility called phpMyAdmin offers an GUI to do the same task. www.hope.ac.uk ...
Challenges and Opportunities with Big Data
... While the potential benefits of Big Data are real and significant, and some initial successes have already been achieved (such as the Sloan Digital Sky Survey), there remain many technical challe ...
... While the potential benefits of Big Data are real and significant, and some initial successes have already been achieved (such as the Sloan Digital Sky Survey), there remain many technical challe ...
Database Connectivity Toolset User Manual
... Some database systems, particularly the flat-file databases such as dBase, do not support floating–point numbers. In cases where floating–point numbers are not supported, the toolkit converts floating–point numbers to the nearest equivalent, usually binary coded decimal (BCD), before storing them in ...
... Some database systems, particularly the flat-file databases such as dBase, do not support floating–point numbers. In cases where floating–point numbers are not supported, the toolkit converts floating–point numbers to the nearest equivalent, usually binary coded decimal (BCD), before storing them in ...