A Primer on SQL (1st Edition)
... SQL is taught using a product called Ingres. The reasons for choosing Ingres are simple - it comes in a free and open source edition, it’s available on most major platforms and it’s a full-fledged enterprise class database with many features. However, any relational database product that you can get ...
... SQL is taught using a product called Ingres. The reasons for choosing Ingres are simple - it comes in a free and open source edition, it’s available on most major platforms and it’s a full-fledged enterprise class database with many features. However, any relational database product that you can get ...
FROM R
... [Böhm, Braunmüller, Breunig, Kriegel: High Perf. Clustering based on the Sim. Join, CIKM 2000] ...
... [Böhm, Braunmüller, Breunig, Kriegel: High Perf. Clustering based on the Sim. Join, CIKM 2000] ...
SQL Server 2000_ado_xsl
... retrieve data from a table as a customised XML document.All the hype that once surrounded XML is finally starting to die down, and developers are really beginning to harness the power and flexibility of the language. XML is a data descriptive language that uses a set of userdefined tags to describe ...
... retrieve data from a table as a customised XML document.All the hype that once surrounded XML is finally starting to die down, and developers are really beginning to harness the power and flexibility of the language. XML is a data descriptive language that uses a set of userdefined tags to describe ...
Subject: Database Management Systems
... functions that are common to many applications accessing data stored in the DBMS. This, in conjunction with the high-level interface to the data, facilitates quick development of applications. Such applications are also likely to be more robust than applications developed from scratch because many i ...
... functions that are common to many applications accessing data stored in the DBMS. This, in conjunction with the high-level interface to the data, facilitates quick development of applications. Such applications are also likely to be more robust than applications developed from scratch because many i ...
Entity Sets
... Although it is possible to replace any nonbinary (n-ary, for n > 2) relationship set by a number of distinct binary relationship sets, a nary relationship set shows more clearly that several entities participate in a single relationship. Placement of relationship attributes ...
... Although it is possible to replace any nonbinary (n-ary, for n > 2) relationship set by a number of distinct binary relationship sets, a nary relationship set shows more clearly that several entities participate in a single relationship. Placement of relationship attributes ...
jayavel - Berkeley Database Research
... • XML has emerged as the Internet data format • But relational database systems will continue to be used for data management tasks • Internet application developers currently have to explicitly bridge this “data model gap” • Can we design a system that automatically bridges this gap for application ...
... • XML has emerged as the Internet data format • But relational database systems will continue to be used for data management tasks • Internet application developers currently have to explicitly bridge this “data model gap” • Can we design a system that automatically bridges this gap for application ...
Manual - Animated DataBase Courseware
... option and when selected, the user will receive the screen in Figure I.1.2.6. This is the wrong option because a Department may have more than one employee, and for each employee in the Department, a row of redundant data is added. Emp_ID is a multi-valued attribute in the employee table because Dep ...
... option and when selected, the user will receive the screen in Figure I.1.2.6. This is the wrong option because a Department may have more than one employee, and for each employee in the Department, a row of redundant data is added. Emp_ID is a multi-valued attribute in the employee table because Dep ...
SQL Server Procedures
... configuration of SQL server. The hardened environment does not necessarily have a predictable set of configuration options to consider. The remainder of this document addresses some of the ways SQL security has been locked down and some ways to configure it so that MessageStats functions properly. ...
... configuration of SQL server. The hardened environment does not necessarily have a predictable set of configuration options to consider. The remainder of this document addresses some of the ways SQL security has been locked down and some ways to configure it so that MessageStats functions properly. ...
Database Description with SDM - Semantic Information Research Lab
... these semantic constraints are to be expressed and enforced, additional mechanisms must be provided to supplement contemporary database models [6, 16, 19, 20,451. The problem with this approach is that these supplemental constraints are at best ad hoc, and do not integrate all available information ...
... these semantic constraints are to be expressed and enforced, additional mechanisms must be provided to supplement contemporary database models [6, 16, 19, 20,451. The problem with this approach is that these supplemental constraints are at best ad hoc, and do not integrate all available information ...
Temporal Data and The Relational Model
... constraints; Relational operators; The relational model; Exercises (as for ...
... constraints; Relational operators; The relational model; Exercises (as for ...
mod-8
... Most relationship sets are binary There are occasions when it is more convenient to ...
... Most relationship sets are binary There are occasions when it is more convenient to ...
ADO.NET Lecture - Information Technology Gate
... • When a database is then created, a field can be specified as a primary key. • Visual Basic will insist that every record have an entry in the primary-key field and that the same entry does not appear in two different records. • If the user tries to enter a record with no data in the primary key, t ...
... • When a database is then created, a field can be specified as a primary key. • Visual Basic will insist that every record have an entry in the primary-key field and that the same entry does not appear in two different records. • If the user tries to enter a record with no data in the primary key, t ...
Algorithms for Translating View Updates to Databases Updates for
... steps what can be done in one. The only operation we can simplify is a replacement operation, and it is simplified by not changing the key. or by changing fewer attributes. We consider a one-st.ep replacement operation simpler than a two-step deletion-insertion pair. This allows us to get at the ess ...
... steps what can be done in one. The only operation we can simplify is a replacement operation, and it is simplified by not changing the key. or by changing fewer attributes. We consider a one-st.ep replacement operation simpler than a two-step deletion-insertion pair. This allows us to get at the ess ...
“Oracle Database 11g: SQL Tuning Workshop”
... You'll also learn to interpret execution plans, as well as the different ways data can be accessed. Explore how the optimizer chooses the path and how to influence the optimizer to ensure that the best method is used. Automatic SQL Tuning Tools This course also covers Automatic SQL Tuning tools, as ...
... You'll also learn to interpret execution plans, as well as the different ways data can be accessed. Explore how the optimizer chooses the path and how to influence the optimizer to ensure that the best method is used. Automatic SQL Tuning Tools This course also covers Automatic SQL Tuning tools, as ...
R - VUB STAR lab
... relations, with on delete cascade specified for each dependency, a deletion or update at one end of the chain can propagate across the entire chain. If a cascading update to delete causes a constraint violation that cannot be handled by a further cascading operation, the system aborts the transact ...
... relations, with on delete cascade specified for each dependency, a deletion or update at one end of the chain can propagate across the entire chain. If a cascading update to delete causes a constraint violation that cannot be handled by a further cascading operation, the system aborts the transact ...
Element
... Elements in the XML document matching the pattern are processed by the actions within the xsl:template element xsl:value-of selects (outputs) specified values (here, customer-name) For elements that do not match any template Attributes and text contents are output as is Templates are recur ...
... Elements in the XML document matching the pattern are processed by the actions within the xsl:template element xsl:value-of selects (outputs) specified values (here, customer-name) For elements that do not match any template Attributes and text contents are output as is Templates are recur ...
Vertica Database - vertica
... records by internally combining INSERT and UPDATE SQL operations in one statement. In a MERGE operation, Vertica replaces the values of the specified columns in all rows of the target table for which a specific condition is true. All other columns and rows in the table are unchanged. By default MERG ...
... records by internally combining INSERT and UPDATE SQL operations in one statement. In a MERGE operation, Vertica replaces the values of the specified columns in all rows of the target table for which a specific condition is true. All other columns and rows in the table are unchanged. By default MERG ...
Querying XML Database Using Relational Database System
... Then, a query -> list recommended books, prices and reviews. ...
... Then, a query -> list recommended books, prices and reviews. ...
Aggregate Queries in NoSQL Cloud Data Stores
... Figure 1.3: Aggregate View Maintenance via Summary Tables the diagram, A ’s price in V has been set to −20. It is easy to see how V describes the modifications which have to be applied to V in order to make the summary table become consistent with the updates: each row from V is matched with rows ...
... Figure 1.3: Aggregate View Maintenance via Summary Tables the diagram, A ’s price in V has been set to −20. It is easy to see how V describes the modifications which have to be applied to V in order to make the summary table become consistent with the updates: each row from V is matched with rows ...