4D2a – Data Engineering
... Information systems management course runs over the entire 1st Semester. In each week, there are three one-hour lectures. However, tutorials are scheduled in place of a lecture every two weeks. Alongside the lectures, a full online course on the application of database language SQL is delivered. Thi ...
... Information systems management course runs over the entire 1st Semester. In each week, there are three one-hour lectures. However, tutorials are scheduled in place of a lecture every two weeks. Alongside the lectures, a full online course on the application of database language SQL is delivered. Thi ...
Intermediate SQL
... ©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 ...
Access Project 2
... Changing a Format and Caption (AC 98) You can change the way items appear in query results by changing the format Use the Property Sheet for the given field that you wish to format You can change the desired property, such as number of decimal places or the caption ...
... Changing a Format and Caption (AC 98) You can change the way items appear in query results by changing the format Use the Property Sheet for the given field that you wish to format You can change the desired property, such as number of decimal places or the caption ...
Views
... Joined Relations Join operations take two relations and return as a result another relation. A join operation is a Cartesian product followed by Selection. The join operations are typically used as subquery expressions in the from ...
... Joined Relations Join operations take two relations and return as a result another relation. A join operation is a Cartesian product followed by Selection. The join operations are typically used as subquery expressions in the from ...
DYNAMIC SQL CODEBUILDER
... Relational algebra. The relational algebra arises precisely from the calculus and algebra, is a theoretical language with operations that work on one or many relations to retrieve new information. This field of mathematics has been the basis for creating other high-level languages, for example in th ...
... Relational algebra. The relational algebra arises precisely from the calculus and algebra, is a theoretical language with operations that work on one or many relations to retrieve new information. This field of mathematics has been the basis for creating other high-level languages, for example in th ...
Logical Design of Audit Information in Relational Databases
... In the “Trusted Computer System Evaluation Criteria” [DOD85], the accountability control objective is stated as follows: Systems that are used to process or handle classified or sensitive information must assure individual accountability whenever either a mandatory or discretionary security policy i ...
... In the “Trusted Computer System Evaluation Criteria” [DOD85], the accountability control objective is stated as follows: Systems that are used to process or handle classified or sensitive information must assure individual accountability whenever either a mandatory or discretionary security policy i ...
create type - Berkeley Database Group
... To define and use a "black box ADT", a user will Implement its internal structure and functions in an external programming language (e.g., C/C++, Java) Use the DDL to register the type with the DBMS Size of an instance of the type Input (constructor) and output functions Other functions and ...
... To define and use a "black box ADT", a user will Implement its internal structure and functions in an external programming language (e.g., C/C++, Java) Use the DDL to register the type with the DBMS Size of an instance of the type Input (constructor) and output functions Other functions and ...
or more
... Cannot update or delete parent value if one or more matching values exist in the child table No change to matching child value ...
... Cannot update or delete parent value if one or more matching values exist in the child table No change to matching child value ...
Lecture6
... Database System Concepts, 6th Ed. ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... Database System Concepts, 6th Ed. ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
Chapter 9
... Database system may also allow the use of functions written in other languages such as C or C++ Benefits: more efficient for many operations, more ...
... Database system may also allow the use of functions written in other languages such as C or C++ Benefits: more efficient for many operations, more ...
r – s
... customer (customer-name, customer-street, customer-only) account (account-number, branch-name, balance) loan (loan-number, branch-name, amount) depositor (customer-name, account-number) borrower (customer-name, loan-number) ...
... customer (customer-name, customer-street, customer-only) account (account-number, branch-name, balance) loan (loan-number, branch-name, amount) depositor (customer-name, account-number) borrower (customer-name, loan-number) ...
Ch04.PowerPoint
... A primary key is a candidate key that has been selected to uniquely identify records in a relation – Selection of primary key: It must be unique within its domain at all times The candidate key can never change It cannot hold a NULL value ...
... A primary key is a candidate key that has been selected to uniquely identify records in a relation – Selection of primary key: It must be unique within its domain at all times The candidate key can never change It cannot hold a NULL value ...
Chapter 19: Distributed Databases
... contains, and the types of these attributes XML, JSON BigTable has its own data model (the next page) It does not need extensive query language support. Two primitive functions: ...
... contains, and the types of these attributes XML, JSON BigTable has its own data model (the next page) It does not need extensive query language support. Two primitive functions: ...
1 - EECS: www-inst.eecs.berkeley.edu
... stapled exam, to serve as a reference, but do not remove any other pages from the stapled exam! Two pages of extra answer space have been provided at the back in case you run out of space while answering. If you run out of space, be sure to make a “forward reference” to the page number where your an ...
... stapled exam, to serve as a reference, but do not remove any other pages from the stapled exam! Two pages of extra answer space have been provided at the back in case you run out of space while answering. If you run out of space, be sure to make a “forward reference” to the page number where your an ...
XML - CWI
... » Store values of subelements/attributes to be indexed, such as customer-name and account-number as extra fields of the relation, and build indices » Oracle 9 supports function indices which use the result of a function as the key value. Here, the function should return the value of the required sub ...
... » Store values of subelements/attributes to be indexed, such as customer-name and account-number as extra fields of the relation, and build indices » Oracle 9 supports function indices which use the result of a function as the key value. Here, the function should return the value of the required sub ...
marked - Kansas State University
... Microsoft Access supports a variant of QBE called Graphical Query By Example (GQBE) GQBE differs from QBE in the following ways Attributes of relations are listed vertically, one below the other, instead of horizontally Instead of using variables, lines (links) between attributes are used to ...
... Microsoft Access supports a variant of QBE called Graphical Query By Example (GQBE) GQBE differs from QBE in the following ways Attributes of relations are listed vertically, one below the other, instead of horizontally Instead of using variables, lines (links) between attributes are used to ...
OVERCOMING RELATIONAL DATABASE LIMITATIONS WITH NOSQL
... many machines. There are still keys but they point to multiple columns. The columns are arranged by column family. Examples of column-based databases are Cassandra and HBase. 4. Graph based: In relational databases, references to other rows and tables are indicated by referring to their primary-key ...
... many machines. There are still keys but they point to multiple columns. The columns are arranged by column family. Examples of column-based databases are Cassandra and HBase. 4. Graph based: In relational databases, references to other rows and tables are indicated by referring to their primary-key ...
Database Systems Syllabus - Lehman College
... J. Murach, MySQL, Edition 2 Mike Murach & Associates, 2015 P. Dubois, MySQL, Edition 5, Addison-Wesley, 2013 R.F. van Der Lans, SQL for MySQL Developers, Addison Wesley, 2007 R.F. van Der Lans, Introduction to SQL: Mastering the Relational Database Language, Fourth Edition/20th Anniversary E ...
... J. Murach, MySQL, Edition 2 Mike Murach & Associates, 2015 P. Dubois, MySQL, Edition 5, Addison-Wesley, 2013 R.F. van Der Lans, SQL for MySQL Developers, Addison Wesley, 2007 R.F. van Der Lans, Introduction to SQL: Mastering the Relational Database Language, Fourth Edition/20th Anniversary E ...