How to get the maximum value of the first piece of data after sorting in Oracle

In Oracle, to get the maximum value of the first piece of data after sorting, you can use the ORDER BY clause and the LIMIT clause: SELECT column_name: Select the column to get the maximum value FROM table_name: Specify the column to get the data Table ORDER BY column_name DESC: Sort in descending order, put the maximum value first LIMIT 1: Only take the first record, that is, the maximum value

Get the maximum value of the first piece of data after sorting in Oracle

In Oracle, to get the maximum value of the first piece of data after sorting, you can use the substring with LIMIT The ORDER BY clause of the sentence.

<code class="sql">SELECT column_name
FROM table_name
ORDER BY column_name DESC
LIMIT 1;</code>

Explanation:

• SELECT column_name: Select the column to get the maximum value.
• FROM table_name: Specify the table from which to obtain data.
• ORDER BY column_name DESC: Sort in descending order according to the specified column, ranking the largest value first.
• LIMIT 1: Limit the result to the first record, which is the maximum value.

Example:

Suppose there is a table named employees with a column salary:

<code class="sql">SELECT salary
FROM employees
ORDER BY salary DESC
LIMIT 1;</code>

This query will return the largest salary value in the salary column.

Note:

• If there are multiple records with the same value, this query will return the one with the largest value.
• If the table is empty or contains no records, this query will return NULL.

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