Examlex
The special operator used to check whether a subquery returns any rows is _____.
Order
In mathematics, the arrangement or sequence of objects or numbers according to a specific rule, or the degree of a polynomial or differential equation.
Matrix
A rectangular array of numbers, symbols, or expressions, arranged in rows and columns, used in solving systems of linear equations and other mathematical operations.
Solution
The solution or solutions that make an equation, inequality, or system of equations true.
System Of Linear Equations
A collection of two or more linear equations involving the same set of variables.
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