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Explain the differences between structured data and unstructured data.
Structured data are facts concerning objects and events. The most significant structured data are numeric, character, and dates. Structured data are kept in tabular form. Unstructured data are multimedia data like documents, photographs, maps, images, sound, and video clips. Unstructured data are most usually found on Web servers and Web-enabled databases.
When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.
Explain algorithm of ER To Relational Mapping ? ER-to-Relational Mapping Algorithm: 1) Step 1: Mapping of regular entity types: For each strong entity type E, form a relatio
CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);
Different stages of DDLC ?
Write a query that display ename annual salary and comm from emp table
What is recursion? Is it possible for a stored procedure to call itself or recursive stored procedure? How many levels of SP nesting is possible? Recursion is method of proble
Question 1 Discuss the classification of DBMS based on location of database Question 2 Explain with examples different SQL commands used for creating and deleting relations.
Explain the concepts of relational data model? Relational Data Model - The relational model was first introduced through Prof. E.F. Codd of the IBM Research in the year 1970
Rearrange Classes and Operations Sometimes, the similar operation is defined across different classes and can easily be inherited from a familiar ancestor, but more often oper
What is entity in DBMS? Entity: A DBMS entity is either a thing in the modelled world or a drawing element in an ERD.
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