Slides (in powerpoint) - Department of Computer Science
... each column holds a particular type of data each row contains a specific value ideally has one column where all values are unique, forming an identifier/key for that row ...
... each column holds a particular type of data each row contains a specific value ideally has one column where all values are unique, forming an identifier/key for that row ...
TupleRank and Implicit Relationship Discovery in - delab-auth
... are only a special case of inclusion dependencies. Inclusion dependencies indicate more general links between tuples that share values for some attributes. However, there is no direct way in SQL to declare general inclusion dependencies. Secondly, database tuples could relate to each other in ways t ...
... are only a special case of inclusion dependencies. Inclusion dependencies indicate more general links between tuples that share values for some attributes. However, there is no direct way in SQL to declare general inclusion dependencies. Secondly, database tuples could relate to each other in ways t ...
ADVANCED DBMS Paper Code: ETCS
... 1. Question No. 1 should be compulsory and cover the entire syllabus. This question should have objective or short answer type questions. It should be of 25 marks. 2. Apart from Question No. 1, rest of the paper shall consist of four units as per the syllabus. Every unit should have two questions. H ...
... 1. Question No. 1 should be compulsory and cover the entire syllabus. This question should have objective or short answer type questions. It should be of 25 marks. 2. Apart from Question No. 1, rest of the paper shall consist of four units as per the syllabus. Every unit should have two questions. H ...
How to Build a Stream Database
... satisfies the predicate. – Note: In this general this predicate defines a join condition between G and the tuple stream. – Correlated aggregates : In some cases (especially when defining sequences) we can even compute correlated aggregates. • Recall the example on slide 7. ...
... satisfies the predicate. – Note: In this general this predicate defines a join condition between G and the tuple stream. – Correlated aggregates : In some cases (especially when defining sequences) we can even compute correlated aggregates. • Recall the example on slide 7. ...
chapter 12: practical database design methodology and use
... d. Any modification of the fields defined in this database. e. Any constraints on individual fields. Answer: a) This means that no Students can exist without a Name. b) This has a possible problem because there are some restrictions on using SSN as an identifier for people, hence why most schools as ...
... d. Any modification of the fields defined in this database. e. Any constraints on individual fields. Answer: a) This means that no Students can exist without a Name. b) This has a possible problem because there are some restrictions on using SSN as an identifier for people, hence why most schools as ...
CS206 --- Electronic Commerce
... = sets of “items” that are purchased together as a customer leaves a store. Summary of basket data is frequent itemsets = sets of items that often appear together in baskets. ...
... = sets of “items” that are purchased together as a customer leaves a store. Summary of basket data is frequent itemsets = sets of items that often appear together in baskets. ...
Slides
... They can be combined but decidability is subtle (see CARIN, [Levy and Rousset, 1996]). ...
... They can be combined but decidability is subtle (see CARIN, [Levy and Rousset, 1996]). ...
Publisher
... create table departments of Department We can omit the declaration scope people from the type declaration and instead make an addition to the create table statement: create table departments of Department (head with options scope people) ...
... create table departments of Department We can omit the declaration scope people from the type declaration and instead make an addition to the create table statement: create table departments of Department (head with options scope people) ...
Storage Manager
... 4. If the value of the name field is “Smith” then get the value of the dept_code field. Suppose it is “100” 5. Search in a similar way for a record with “100” for the dept_code in the Department file. 6. Print the dept_name when successfully finding the dept_code. Very painful procedure even for the ...
... 4. If the value of the name field is “Smith” then get the value of the dept_code field. Suppose it is “100” 5. Search in a similar way for a record with “100” for the dept_code in the Department file. 6. Print the dept_name when successfully finding the dept_code. Very painful procedure even for the ...
Relational Database Management Systems
... must be logically addressable by specifying the name of the containing table, the name of the containing column and the primary key value of the containing row. ...
... must be logically addressable by specifying the name of the containing table, the name of the containing column and the primary key value of the containing row. ...
Computer Security: Principles and Practice, 1/e
... column holds a particular type of data each row contains a specific value these ideally has one column where all values are unique, forming an identifier/key for that row ...
... column holds a particular type of data each row contains a specific value these ideally has one column where all values are unique, forming an identifier/key for that row ...
Normalization
... particular Employee ID value corresponds to one and only one Employee Address value. (Note that the reverse need not be true: several employees could live at the same address and therefore one Employee Address value could correspond to more than one Employee ID. Employee ID is therefore not function ...
... particular Employee ID value corresponds to one and only one Employee Address value. (Note that the reverse need not be true: several employees could live at the same address and therefore one Employee Address value could correspond to more than one Employee ID. Employee ID is therefore not function ...
Introduction to Database
... Relation : a relation is a table with columns and rows Attribute : an attribute is a named column of a relation Domain : a domain is the set of allowable values for one or more attributes Tuple : a tuple is a row of a relation Degree : the degree of a relation is the number of attributes i ...
... Relation : a relation is a table with columns and rows Attribute : an attribute is a named column of a relation Domain : a domain is the set of allowable values for one or more attributes Tuple : a tuple is a row of a relation Degree : the degree of a relation is the number of attributes i ...
Slides
... 2. declare a variable of the same type as the records stored in the file 3. scan the file: while the end of the file is not yet encountered assign the current record to above variable. 4. If the value of the name field is “Smith” get the value of the dept_code field. Suppose it is “10000” 5. Search ...
... 2. declare a variable of the same type as the records stored in the file 3. scan the file: while the end of the file is not yet encountered assign the current record to above variable. 4. If the value of the name field is “Smith” get the value of the dept_code field. Suppose it is “10000” 5. Search ...
