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Oracle Least()函数
LEAST
The LEAST function returns the smallest expression in a list of expressions. All expressions after the first are implicitly converted to the data type of the first expression before the comparison.
To retrieve the largest expression in a list of expressions, use GREATEST.
The data type of the first expression.
LEAST (expr [, expr]...)
- expr
-
An expression.
Example 17-38 Finding the Shortest Text Expressions
The following statement returns the shortest string.
SHOW LEAST('Harry','Harriot','Harold')
Harry
Example 17-39 Finding the Smallest Numerical Expressions
The following statement selects the number with the smallest value.
SHOW LEAST (5, 3, 18) 3
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最后更新：2017-04-03 12:55:22