Relational Operator Symbol EQ Equal to = NE Not equal to <> or # or != GT Greater than > GE Greater than or equal to >= LT Less than < LE Less than or equal to <=
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Additional Resources
- Reasoning About the Updatability of XML Views Over Relational Databases
- XML has become an important medium for data exchange, and is also used as an interface to - i.e. a view of - a relational database. While previous work has considered XML views for the purpose of querying relational databases (e.g. Silkroute), in this paper the problem of updating a...
- White papers 2008-10-22
- X^3: A Cube Operator for XML OLAP
- With increasing amounts of data being exchanged and even generated or stored in XML, a natural question is how to perform OLAP on XML data, which can be structurally heterogeneous (e.g., parse trees) and/or marked-up text documents. A core operator for OLAP is the data cube. While the relational cube...
- White papers 2007-05-29
- null
- nullNo title?You know you are closing page views that way. The title has the link.Torvalds' StatementI don't see any conflicts there. He's saying that most valid patents on OS fundamentals have probably expired - meaning no violation, and the remaining are probably invalid - meaning no violation -...
- Discussion threads 2007-05-24
- 4GL Errors and Consequences
- 4GL Errors and ConsequencesFurther requirements1. Remove the cross platform requirements for the DBMS provider from the language. Cross platform capability should exist in the DBMS itself. From the user and programmer point of view the whole database should appear as a single logical database regardless of how it may be...
- Discussion threads 2006-09-28
- L'Unix programming contest
- L'Unix programming contestLest you be Judged[how would you judge the resulting programs to determine a winner if this were a programming contest?]A course I took as part of my Master's degree was called Software Quality and attempted to do just that - judging code. It's main tenet was the Coupling/Cohesion...
- Discussion threads 2006-09-25
- The meaning of "relational"
- The meaning of "relational"Nice try, but not quite thereI would strongly recommend C. J. Date's "Database in Depth" for anyone interested in a very clear explanation of relational theory. Set theory is important of course but not, I think, as central as predicate logic; we are not just interested in...
- Discussion threads 2006-06-06
- Resurection Time?
- Resurection Time?Time for some new approaches certainlyI will say right away I am in no position to comment on scientific programming.However, I am growing more and more convinced that the dominance of functional-procedural languages needs to be overthrown. They really haven't met the promises they have made and have severely...
- Discussion threads 2005-08-25
- The "Top Ten" most inexcusable failures of technology?
- Just about everywhere you look on the Internet, in newspapers and magazines, and even on TV, you'll see new and innovative products being showered with accolades and awards. As a former lab director at Ziff Davis, I was a part of the testing and reviews engine that hoisted great products...
- Blog posts 2005-04-08
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