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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, selecting, and deleting records. Temporary heap files are used for external sorting and within other relational operators. A sequential scan of a heap file (through the Scan class) is the most primary access method.
Discuss the importance and characteristics of database backup and recovery procedures, then describe the actions that must be detailed in backup and recovery plan
What is relational model feature? A relational model feature is much more data independence than some other database models.
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Explain the two constraints, check and foreign key in SQL along with an example for each. Give the syntax. CHECK constraint - CHECK constraint specifies an expression which
Write short notes on relational constraints? Relational Constraints are: 1. NOT NULL 2. Unique 3. Primary key 4. Foreign key 5. Table check
Which types of data supported by MySQL for Time and Date formats? MySQL supports a number of time and date column formats: Some of them are 1) DATE 2) DATETIME 3) TIM
The Form input elements are: Reporter name text type input Password
Analyzing Association Traversal Till now, we have supposed that associations are bi-directional. But in the case of traversal, it is in only one direction in any application,
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Develop a database broker framework to implement a persistence mechanism for the domain objects involved in the use case dealt with in Question 2. a. Specify the attribute type
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