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The traffic data mgmt. systems infrastructure plan describes the software, hardware, data network, and other elements that will support the TDMS. The infrastructure plan is based on the results of the gap analysis and on the project budget.
When the logical model is built, then star schema traffic architecture will be used as a default schema and dimension will be created. All these requirements will be included in the physical data model.
The objective of this project is to facilitate the administration staff of the TDMS to enhance their performance while compiling the results and maintenance of each quadrant. This system also helps in maintaining the inventory records and equipment records for the particular areas and concerns. The TDMS will help in building reports very quickly and real time data can be analyzed in no time as well as the historical data is also available.
Lock Based Protocol A lock is nothing but a mechanism that tells the DBMS whether a particular data item is being used by any transaction for read/write purpose. As there are t
What are the ways of obtaining the connection parameters? Hardwire the parameters into the program. Ask for the parameters interactively. Get the parameters
Define the terms 1) physical schema 2) logical schema. Physical schema: The physical schema explains the database design at the physical level, which is the lowest lev
What are shortcomings in structured approach? Structured methodology treats data and their behaviours separately, and this makes it harder to isolate changes. If changes are re
Describe an data dictionary? A data dictionary is a data structure which keeps meta data about the structure of the database ie. the schema of the database.
Explain heap file with advantages? Heap File is an unordered set or a group of records, stored on a set of pages. This class gives basic support for inserting, updating, select
Rules Of Data Normalisation Let us now summarise Normalisation with the help of various clean rules. The following are the necessary rules for the Normalisation process: 1.
In a Hierarchical model of data records are organized ? In the hierarchical model of data records are organized as Tree structure.
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Describe Participation Constraints? Participation Constraints - The participation constraint exacts whether the existence of an entity depends on its being related to another
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