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Define query optimization.
Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
Relations create the database. They must satisfy various properties, like no duplicate tuples, no ordering of tuples, and atomic attributes, etc. Relations that satisfy these basic
Question 1 Explain the 10 reasons to use MySQL Question 2 Write the SQL statements to demonstrate the following using SELECT command Expression Evaluation ORDER BY
what is meant semantic query optimization? how does it differ from other query optimization techniques?
Define deadlock avoidance. An alternative method for avoiding deadlocks is to needs additional information about how resources are to be requested. Each request requires the s
Decompose the table with the following description and functional dependencies into a set of equivalent tables normalized to 3NF or BCNF. This database stores records from a (ve
Explain the Strategy of Database Planning ?
Define the terms i) Entity set ii) Relationship set Entity set: The set of all entities of the similar type is termed as an entity set. Relationship set: The set of all rela
What are the comparison operator in SQL? Comparison operator in SQL are =, LIKE and BETWEEN
I need help with some assignments
Explain Data Dictionary in short?
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