ppt - Avi Silberschatz
... (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = ins ...
... (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = ins ...
Module 1: Introduction
... (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = ins ...
... (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = ins ...
Relational Algebra and Calculus
... Fewer tuples than cross-product, might be able to compute more efficiently ...
... Fewer tuples than cross-product, might be able to compute more efficiently ...
Making the Most of the PDMWorks API.pub
... development environment. You will notice that we are using it to store data, not to run code. The code we are running is in Excel. The code would run equally well in SolidWorks or VB.NET. But let’s imagine that people begin to get worried that having data in Access is problematic. It is time to scal ...
... development environment. You will notice that we are using it to store data, not to run code. The code we are running is in Excel. The code would run equally well in SolidWorks or VB.NET. But let’s imagine that people begin to get worried that having data in Access is problematic. It is time to scal ...
Chapter 6: Integrity and Security Domain Constraints
... (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = ins ...
... (select customer-name,account-number from depositor, inserted where inserted.account-number = depositor.account-number) insert into loan values (inserted.account-number, inserted.branch-name, – inserted.balance) update account set balance = 0 from account, inserted where account.account-number = ins ...
PL/SQL programmu paketes (packages)
... Identifies new data that has been added to, modified, or removed from, relational tables and publishes the changed data in a form that is usable by an application ...
... Identifies new data that has been added to, modified, or removed from, relational tables and publishes the changed data in a form that is usable by an application ...
Referential Integrity
... When Not To Use Triggers ! Triggers were used earlier for tasks such as ...
... When Not To Use Triggers ! Triggers were used earlier for tasks such as ...
Presentation Slides - Geoff Montee`s Ramblings
... • row_estimate_method is a foreign table option that controls how tds_fdw estimates the number of rows that will be in a given table’s or query’s result set. This estimation is used by the planner. • The option that has two possible values: – execute: Execute the query on the remote server, so that ...
... • row_estimate_method is a foreign table option that controls how tds_fdw estimates the number of rows that will be in a given table’s or query’s result set. This estimation is used by the planner. • The option that has two possible values: – execute: Execute the query on the remote server, so that ...
Part
... The executeBatch() method returns an array of counts, each of which counts the number of rows affected by the SQL command. The first count returns 0 because it is a DDL command. The other counts return 1 because only one row is affected. NOTE: To find out whether a driver supports batch updates, inv ...
... The executeBatch() method returns an array of counts, each of which counts the number of rows affected by the SQL command. The first count returns 0 because it is a DDL command. The other counts return 1 because only one row is affected. NOTE: To find out whether a driver supports batch updates, inv ...
Administrator Guide
... Temporary work file: This is a data file in Access format comprising of tables that map directly to the data entry forms. This file is important if you design new data entry forms for a specialized data entry need that is not adequately met by the standard forms shipped with a new Climsoft installa ...
... Temporary work file: This is a data file in Access format comprising of tables that map directly to the data entry forms. This file is important if you design new data entry forms for a specialized data entry need that is not adequately met by the standard forms shipped with a new Climsoft installa ...
Monitoring Database Objects
... invocation mechanism described here is non-procedural. The user specifies a database query whose value states are to be monitored, leaving the system to keep track of actions that may change a monitored state. In addition, the system creates an optimized mechanism to invoke tracking procedures when ...
... invocation mechanism described here is non-procedural. The user specifies a database query whose value states are to be monitored, leaving the system to keep track of actions that may change a monitored state. In addition, the system creates an optimized mechanism to invoke tracking procedures when ...
Document
... • Propagate changes to external applications • Implement real-time event notification and processing ...
... • Propagate changes to external applications • Implement real-time event notification and processing ...
DBC-e03-Access-Workbench-Section-03-PP
... click the column name and drag it to a cell in the Field: row in the lower window pane ...
... click the column name and drag it to a cell in the Field: row in the lower window pane ...
Slides from David
... Shared Inlining Technique Rules for designing the schema: – Relation X inlines all nodes Y that it an reach such that the path from X to Y does not contain a node that is to be made a separate relation. – Inlined elements are flagged as being a root with the isRoot field. ...
... Shared Inlining Technique Rules for designing the schema: – Relation X inlines all nodes Y that it an reach such that the path from X to Y does not contain a node that is to be made a separate relation. – Inlined elements are flagged as being a root with the isRoot field. ...
Lecture 6
... for server and mainframe databases, use Data Definition Language (DDL) in a text file that describes columns of tables, defines indexes, constraints and security restrictions many PC databases provide a graphical interface to define the database tables in both cases, the Database Definition Subsyste ...
... for server and mainframe databases, use Data Definition Language (DDL) in a text file that describes columns of tables, defines indexes, constraints and security restrictions many PC databases provide a graphical interface to define the database tables in both cases, the Database Definition Subsyste ...
The Researcher`s Guide to the Data Deluge
... to the user as is, but passed through a straightforward statistics postprocessor to derive informative results. Min, max, and mean values for all attributes are the first that come to mind. For larger target lists, the data distribution may be further elicited by selective sampling. Histograms could ...
... to the user as is, but passed through a straightforward statistics postprocessor to derive informative results. Min, max, and mean values for all attributes are the first that come to mind. For larger target lists, the data distribution may be further elicited by selective sampling. Histograms could ...
PHP and MySQL
... • Both db_accessU.cgi and a batch script need to – ‘Connect’ to a database by logging in with username and password – ‘prepare’ a query – ‘execute’ the query – ‘fetch a row’ from the specified ...
... • Both db_accessU.cgi and a batch script need to – ‘Connect’ to a database by logging in with username and password – ‘prepare’ a query – ‘execute’ the query – ‘fetch a row’ from the specified ...
Lecture 3 - cda college
... • Orderly arrangement to logically access rows in a table • Index key – Index’s reference point – Points to data location identified by the key ...
... • Orderly arrangement to logically access rows in a table • Index key – Index’s reference point – Points to data location identified by the key ...
6231B_07
... backups contained within the file, determine which backups need to be restored, and perform the restore operations. When you restore the database, you need to ensure that it is left as a warm standby, as additional log backups may be applied at a later date. If you have time, you should test the sta ...
... backups contained within the file, determine which backups need to be restored, and perform the restore operations. When you restore the database, you need to ensure that it is left as a warm standby, as additional log backups may be applied at a later date. If you have time, you should test the sta ...
StrategiesForWorkingWithTexasSizedDatabases
... Integrity Checks Takes a very long time Restore backup to another server and run there Run with PHYSICAL_ONLY option Break it up into smaller parts over multiple nights Per filegroup Per table ...
... Integrity Checks Takes a very long time Restore backup to another server and run there Run with PHYSICAL_ONLY option Break it up into smaller parts over multiple nights Per filegroup Per table ...
Physical Database Design
... Understand the role of information systems in organizations Recognize the DB design and implementation process Using UML diagrams as an aid to DB design specification Example for a UML-based design tool Rational Rose: A UML-based design tool Differentiate and apply automated DB design tools ...
... Understand the role of information systems in organizations Recognize the DB design and implementation process Using UML diagrams as an aid to DB design specification Example for a UML-based design tool Rational Rose: A UML-based design tool Differentiate and apply automated DB design tools ...
3. Crosscutting Concerns in Database Systems
... 3.1 Crosscutting Concerns at DBMS Level Trade-offs between modularity and efficiency, and granularity of services and the number of interservice relationships result in DBMS designs which lack customisability. This section discusses the problems faced when trying to achieve a high degree of customis ...
... 3.1 Crosscutting Concerns at DBMS Level Trade-offs between modularity and efficiency, and granularity of services and the number of interservice relationships result in DBMS designs which lack customisability. This section discusses the problems faced when trying to achieve a high degree of customis ...