Data Resource mgmt - databases
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| Hierarchical Structures | A hierarchical database organizes data into a tree. The top level of the tree is the root node.A hierarchical structure leads to data redundancy.
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| network database structure | A network database structure is more flexible and significantly more complex than a hierarchical database.
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| object-oriented database | works to abstract related pieces of information into units called "objects."ability to be easily extended. The ability to extend objects without duplicating data is a key benefit of object-oriented databases.
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| relational database structure | a popular approach to database design and is used in virtually all server and desktop database systems.data is represented as a series of values within two-dimensional grids called tables.
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| Operational Database | A database necessary for the operation of a business. the data that a business relies on is stored in operational databases.
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| Distributed Database | A database spread across multiple systems. data might be duplicated across different computers. Distributed databases maintain data across multiple different systems.
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| External Database | Databse located outside the business
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| Hypermedia Database | A data base consisting of linked media such as sounds, photo's, and movies i.e. Youtube
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| normalization | The process of removing data redundancy and ensuring consistency in the database
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
lhurley
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