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How to create a table from existing table?
Create table as
e.g, To create a new table ‘N_emp' with employee names and their identification numbers only from employee table, statement is to create table N_emp as select empname, empid from employee
Draw the database using the ER approach and then make the tables accordingly. Populate the tables so that every table have at least 10 tuples. Then using Java and SQL, execute the
how the string works as keyword?
Explain Strict Two-Phase locking A transaction T does not release any type of its exclusive (X) locks until that transaction commits or aborts. In this method no other transact
Give the two reasons for allowing concurrency
Explain the ISA relationship Answer: ISA relationship - ISA notation is employed in generalization/ specialization to depict relationship among lower and higer level entity s
Define access time. Access time is the time from when a read or write request is issued to when data transfer starts.
A student entity type has the following attributes,name..
define normalisation and functional dependency
How many physical thing?
WHAT IS MEANT BY E-R MODEL
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