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Removing a Synonym:
DROP SYNONYM D30;
Set Difference If R1 and R2 are two union compatible relations or relations then result of R3 =R1- R2 is the relation that have only those tuples that are in R1 but not in R2.
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Two Phase Locking (2PL) The two-phase locking protocol having of two phases: Phase 1 : The lock acquisition phase : If a transaction T needs to read an object, it wants to
Define Aggregate functions and what aggregate functions supported by the MySQL To calculate a summary value from a set of individual values and uses one of the functions known
When are they useful? Justify with an example. The temporary tables are commonly used to support specialized rollups or exact application processing needs. Unlike a permanent t
Relational Model: The relational model uses a collection of tables to represent both data and the relationships among those data. Each table has multiple columns and each column h
What is object containment? References among objects can be used to model dissimilar real-world concepts.
Section A: Use the following tables to create a database called College. Use SQL commands. Student stuid(primary) lastName firstName
what is specialization?
Describe Parameteric end users? Parametric end users might be given update access, but are commonly not permitted to change the structure of data.
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