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Define page.
The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
The clause in SQL which specifies that the query result should be sorted in ascending or descending order based upon the values of one or much more columns is Ans : Order by
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
We face problem of stock Opening balance and closing balance in Minus
Which operator is Cartesian product in relational algebra? Cartesian product in relational algebra is a binary operator. (It requires two operands. e.g., P X Q)
how map binary relation one to one
Data slice explanation
entity relationship diagram for online examination system
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
Your friend owns a computer store in Yuen Long, selling Desktop and Notebook PCs and other computer peripherals. Having been rather successful with his business there, he decided t
What are the General Transformation Rules for Relational operations? Ans: The transformation rules transform one relational algebra expression to AN EQUIVALENT ONE 1. E
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