Xem 1-9 trên 9 kết quả Spatial data types
  • This chapter covers advanced data types and new applications, including temporal datababases, spatial and geographic databases, multimedia databases, and mobility and personal databases. This chapter is suited as a means to lay the groundwork for an advanced course. Some of the material, such as temporal and spatial data types, may be suitable for self-study in a first course.

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  • MySQL 5 is slated to be the most significant release in the products history. The Definitive Guide to MySQL 5, Third Edition is the newest revision of Michael Koflers popular book. This is the first book to offer in-depth instruction about the new features of the world's most popular open source database server. Updated to reflect changes in MySQL version 5, this book will expose you to MySQL's impressive array of new features: views, stored procedures, triggers, and spatial data types.

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  • Chapter 25 - Advanced data types and new applications. This chapter covers advanced data types and new applications, including temporal datababases, spatial and geographic databases, multimedia databases, and mobility and personal databases. This chapter is suited as a means to lay the groundwork for an advanced course. Some of the material, such as temporal and spatial data types, may be suitable for self-study in a first course.

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  • Oracle allows you to define your own object data types, which you can use for creating objects, discussed in detail in Chapter 21, “Object Relational Interactions with Oracle.” Oracle also includes specialized data types for working with XML, spatial data, and media data, as well as ways to access type descriptions when the data type is not known.

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  • The DBMS field has always focused on capturing, organizing, storing, analyzing, and retrieving structured data. Until recently, there was limited interest in extending a DBMS to also manage text, temporal, spatial, sound, image, or video data. However, the Web has clearly demonstrated the importance of these more sophisticated data types. The general problem is that as systems add capabilities, it is hard to make these additions “cleanly.” Rather, there is a tendency to do the minimum necessary to...

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  • The technical, scientific, policy, and institutional environment for conduct- ing Earth science research has been changing rapidly over the past few decades. Changes in the technical environment are due both to the advent of new types and sources of remote sensing data, which have higher spatial and spectral resolution, and to the development of vastly expanded capa- bilities in data access, visualization, spatial data integration, and data manage- ment.

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  • The database community has insulated itself from the information retrieval community, and has largely eschewed dealing with messy data types like time and space (not everyone has, just most of us.) We had our hands full dealing with the “simple stuff” of numbers, strings, and relational operators on them. But, real ap- plications have massive amounts of text data, have temporal prop- erties, and have spatial properties. The DBMS extensibility offered by integrating languages with the DBMS makes it relatively easy to add data types...

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  • Magnetic motion capture systems require the real actor to wear a set of sensors, which are capable of measuring their spatial relationship to a centrally located magnetic transmitter. The position and orientation of each sensor is then used to drive an animated character. One problem is the need for synchronizing receivers. The data stream from the receivers to a host computer consists of 3D positions and orientations for each receiver.

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  • In recent years, under impacts of human activities and climate change, flood has been increased in both the frequency and magnitude, causing lots of damages to people. This study presents a method to evaluate the direct spatial damages of flooding based on inundation depth and land use data. Damage functions for different types of land use arc selected and applied. Matlab strings and GIS are combined to calculate damage in monitery term. The method is applied for estimating loss caused by thc flood event November 1999 for Huong rivce basin.

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