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explain participation constraints with examples
sql is relationally complete-justify
wrie a report on whether a BSc n information systems develops the skills required by employers in Database administration
Retrieve the S&S In-Chapter Database (in Microsoft Access format) from the text's Web site (or create the tables in Table 4-5 in a relational DBMS product). Write queries to answer
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
What is Information System?
Define hot swapping? Hot swapping permits the removal of faulty disks and changes it by new ones without turning power off. Hot swapping decreases the mean time to repair.
Define multivalued dependency and 4NF. Ans: Multivalued Dependency - Assume R be a relation schema and let α ⊆ R and β ⊆ R. The multivalued dependency α →→β holds o
Why do so various organizations use MySQL? Advantages: Open source Highly efficient Offers a high scalability in terms of size and connectivity. Highly prote
note on hashing technique
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