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The Oracle/PLSQL MAX function returns the maximum value of an expression. Syntax. The syntax for the MAX function in Oracle/PLSQL is: SELECT MAX(aggregate_expression) FROM tables. [WHERE conditions]; OR the syntax for the MAX function when grouping the results by one or more columns is: SELECT expression1, expression2, ... expression_n,
Learn how to use the Oracle MAX() function to return the maximum value of a set of values in SQL queries. See syntax, examples, and usage with subquery, GROUP BY, and HAVING clauses.
MAX is an aggregate function that evaluates the maximum of an expression over a set of rows (see Aggregates (set functions)). MAX is allowed only on expressions that evaluate to built-in data types (including CHAR, VARCHAR, DATE, TIME, CHAR FOR BIT DATA, etc.).
9 paź 2024 · The PL/SQL MAX() function is an essential aggregate function in Oracle databases, enabling users to efficiently determine the largest value in a dataset. Whether working with numerical data, dates, or strings, the MAX function is flexible and widely applicable.. In this article, we will provide a detailed explanation of the PL/SQL MAX function, complete with syntax, examples, and outputs to ...
MAX returns maximum value of expr. You can use it as an aggregate or analytic function.
The MIN and MAX aggregate functions are used to calculate the minimum and maximum values of a set of data respectively. As aggregate functions they reduce the number of rows, hence the term "aggregate".
19 sie 2010 · SELECT MAX(columnName) FROM Table1 Or. SELECT MAX(columnName) FROM (SELECT * FROM TableX) AS T1 Or (and this would probably be what you want in your case) SELECT MAX(value) FROM (SELECT 1 AS VALUE FROM DUAL UNION SELECT 2 AS VALUE FROM DUAL) There may be a cleaner way to do it though.
