CLOUD COMPUTING
DATABASE MANAGEMENT
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DML
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Query
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Relational schema
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DDL
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Detailed explanation-1: -1) Which of the following is generally used for performing tasks like creating the structure of the relations, deleting relation? Explanation: The term “DDL” stands for Data Definition Language, used to perform all other essential tasks such as deleting relation and related schemas in defining the structure relation.
Detailed explanation-2: -Data definition Language (DDL) is used to define the database structure or schema. Some of them are CREATE, DROP, ALTER etc.
Detailed explanation-3: -24. Which of the following command is correct to delete the values in the relation teaches? Explanation: To delete the entries from the table Delete from table command should be used.
Detailed explanation-4: -A data manipulation language (DML) is a computer programming language used for adding (inserting), deleting, and modifying (updating) data in a database.
Detailed explanation-5: -Which of the following is correct according to the technology deployed by DBMS? Explanation: Pointers are used to access data with great speed and accuracy. Consistency is maintained using locks.