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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.
Why DML is used for? DML is used to Manipulation and processing of database. DML is provided for manipulation & processing of database. (Data stored in the database is processed
This constraint shows that the key attribute value in each tuple must be unique, i.e., no two tuples have the similar value for the key attribute. This is because the value of the
What is Functional Dependency? A Functional dependency is shown by X Y among two sets of attributes X and Y that are subsets of R specifies a constraint on the possible tuple
Describe file organisation? A file is organized logically as a sequence of records. These records are mapped onto disk blocks. A) Fixed-Length Records Type deposit=record
Advantages of Data Distribution The primary benefit of distributed database systems is the ability to access and share data in a reliable and efficient manner.
Describe sequential file organization. Explain the rules for (i) Inserting a new record. (ii) Deleting an existing record. Ans:A sequential f
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
Consider the following database schema: STAFF(StaffNo, fName, lName, Position, sex, dob, branchNo) BRANCH(BranchNo, Street, City) Assume the following for the above database
Problem Explain at least five relational algebraic operators with a suitable example. Note: All the above descriptions should be done by taking at least two examples from ou
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
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