Document
... • Independent of both software and hardware – Does not depend on the DBMS software used to implement the model – Does not depend on the hardware used in the implementation of the model – Changes in either hardware or DBMS software have no effect on the database design at the conceptual ...
... • Independent of both software and hardware – Does not depend on the DBMS software used to implement the model – Does not depend on the hardware used in the implementation of the model – Changes in either hardware or DBMS software have no effect on the database design at the conceptual ...
Introduction to Microsoft Access 2003
... Access databases and Excel spreadsheets although originally very different, have evolved to have similar functions. Although either type of program can do many, but not all, of the things that the other one does, there are some things which are easier in one program than the other. Excel is not data ...
... Access databases and Excel spreadsheets although originally very different, have evolved to have similar functions. Although either type of program can do many, but not all, of the things that the other one does, there are some things which are easier in one program than the other. Excel is not data ...
sigmod-tutorial-final
... – Integrity constraints, Triggers etc. – Automated tools to migrate database applications ...
... – Integrity constraints, Triggers etc. – Automated tools to migrate database applications ...
Slides 5
... – May indicate that a value is appropriate and known, but has never been entered: • DateOfLastChildbirth is appropriate for a female, and may be known but no one has recorded it in the database ...
... – May indicate that a value is appropriate and known, but has never been entered: • DateOfLastChildbirth is appropriate for a female, and may be known but no one has recorded it in the database ...
patterns & practices Enterprise Library
... You need to cache authentication or authorization data for the duration of a logon session Note: The original release of the Enterprise Library Security Application Block also supported Authentication, Profile and Roles. This is now supported by the .NET Membership and Profile class, so this fun ...
... You need to cache authentication or authorization data for the duration of a logon session Note: The original release of the Enterprise Library Security Application Block also supported Authentication, Profile and Roles. This is now supported by the .NET Membership and Profile class, so this fun ...
Effective Keyword Based Selection of Relational Databases
... measured as a combination of two factors: 1) Proximity factor – Inverse of distance 2) Frequency factor, given a distance d – Number of combinations of exactly d+1 distinct tuples that can be joined in a sequence to get the two keywords in the ...
... measured as a combination of two factors: 1) Proximity factor – Inverse of distance 2) Frequency factor, given a distance d – Number of combinations of exactly d+1 distinct tuples that can be joined in a sequence to get the two keywords in the ...
Lecture4 - Electrical and Computer Engineering Department
... Easy for limited capability scripting languages, harder for general purpose programming languages like Java ...
... Easy for limited capability scripting languages, harder for general purpose programming languages like Java ...
Software Architecture for a Consensus Moderation System
... influence the back-end and vice versa. An additional concern is that, while the system is designed as a web application, the possibility of a future mobile application must be taken into account. For this reason, the back-end, which contains the actual application logic, must remain usable if the fr ...
... influence the back-end and vice versa. An additional concern is that, while the system is designed as a web application, the possibility of a future mobile application must be taken into account. For this reason, the back-end, which contains the actual application logic, must remain usable if the fr ...
Continuous Queries and Publish/Subscribe
... and news messages received. Designed to filter mail and newsgroup messages. Allows users to query over this database. Since Tapestry doesn't use triggers (time is used), it can be implemented in any commercial database that supports SQL ...
... and news messages received. Designed to filter mail and newsgroup messages. Allows users to query over this database. Since Tapestry doesn't use triggers (time is used), it can be implemented in any commercial database that supports SQL ...
FileMaker ODBC and JDBC Guide
... Note You can download PDFs of FileMaker documentation from www.filemaker.com/documentation. Any updates to this document are also available from the website. ...
... Note You can download PDFs of FileMaker documentation from www.filemaker.com/documentation. Any updates to this document are also available from the website. ...
Index A Guide to the Index
... second-level entries and many third-level entries also occur as first-level entries. This is to ensure that users will find the information they require however they choose to search for it. ...
... second-level entries and many third-level entries also occur as first-level entries. This is to ensure that users will find the information they require however they choose to search for it. ...
Physical Database Design
... tuple (row) in a relation. For example, a query of an employee relation might ask the question “ what is the salary of Mr. Smith?” . This query will return the row containing details about Mr. Smith. ...
... tuple (row) in a relation. For example, a query of an employee relation might ask the question “ what is the salary of Mr. Smith?” . This query will return the row containing details about Mr. Smith. ...
SQL, NoSQL, MongoDB
... • Find things within tables by brute force or indexes, e.g. B-Trees or Hash Tables • Cross-reference tables via shared keys, basically an optimized cross-product, known as a “join” • Expensive operation ...
... • Find things within tables by brute force or indexes, e.g. B-Trees or Hash Tables • Cross-reference tables via shared keys, basically an optimized cross-product, known as a “join” • Expensive operation ...
20InternalDBAspects
... Calculate the sizes of standard and bitmap index. Choose the smaller index. Bitmap index not allowed for unique index. There are some things Bitmaps are very good for. ...
... Calculate the sizes of standard and bitmap index. Choose the smaller index. Bitmap index not allowed for unique index. There are some things Bitmaps are very good for. ...
My DB and PHP Access slides
... • 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 ...
