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Ask q“A database will be made to store information about patients in a hospital. On arrival, each patient’s personal details (name, address, and telephone number) are recorded wher
File Manager File manager handles the allocation of space on disk storage. It starts and maintains the list of structures and indices described in the internal schema that is
We want have a website; we need to test the security of our website. You need to: -Try to bypass our security by simulate a website hacking -Try some hack Techniques like
Can we delete data element, which is being used by table fields. No we cant delete data element.
sql is relationally complete-justify
What is 2NF? A relation schema R is in 2NF if it is in 1NF and every non-prime attribute A in R is fully functionally dependent on primary key.
basic structure of xml
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
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
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
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