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What three major types of actions includes databases? Briefly discuss these
The three major types of actions including databases are:
(i) Defining: It includes specifying the data types, structures and constraints of data types, structures and constraints the data to be stored within the database.
(ii) Manipulating: It involves functions such as querying the database to retrieve specific data updating the database to reflect changes within the miniworld and generating reports form data.
(iii) Sharing: It permits multiple users and programs to access the database at the same time.
What are the two types of blocks in the fixed -length representation? Define them. Anchor block: Have the first record of a chain. Overflow block: Have the records other tha
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please give me introduction to full data in D B M S in a short assignment
Explain the EXISTS and UNIQUE functions of SQL. Give an example for each? EXISTS: The EXISTS function takes one parameter that is a SQL statement. If any records exist which
Define upgrade and downgrade? It gives a mechanism for conversion from shared lock to exclusive lock is called as upgrade. It gives a mechanism for conversion from exclusive
Synonyms and Indexes Some of the essential properties of indexes are: An Index is a schema Object Indexes can be formed explicitly or automatically Indexes are m
I have a homework assignment due today by midnight. I need help understanding databasse normalization and determining the type of form violation & how to fix the violation.
Describe the types of attributes? Types of attributes: An attribute's category determines the type of values that are permitted in the attribute. For instance, the value vers
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
I need a professional to prepare a database to collect and store basic information. The information can be basic info such as contact details etc. One requirement i have is f
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