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How to Find the Most Frequent Value in an SQL Column?

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2025-01-05 20:00:41599browse

How to Find the Most Frequent Value in an SQL Column?

Determining the Most Frequent Value in an SQL Column

In SQL, identifying the value that occurs most frequently in a particular column of a table is a common task. Here's how to tackle it:

Solution:

To find the most frequent value, follow these steps:

  1. Use the SELECT statement: This statement allows you to retrieve records from the table.
  2. Specify the column to be analyzed: Use the placeholder and replace it with the actual column name.
  3. Count column occurrences: Employ the COUNT() function to determine the number of times each unique value appears in the column. Assign this count to a column named value_occurrence.
  4. Group by column: Utilize the GROUP BY clause to group records based on the . This ensures that each distinct value is counted separately.
  5. Order results in descending order: Use the ORDER BY clause to sort the results in descending order based on value_occurrence.
  6. Limit to the top result: Append LIMIT 1 to obtain only the value with the highest occurrence count.

Example:

Considering the provided sample table, the following SQL query would yield the result "two":

SELECT
  one,
  COUNT(one) AS `value_occurrence`

FROM
  my_table

GROUP BY
  one

ORDER BY
  `value_occurrence` DESC

LIMIT 1;

Customization:

  • Replace and with the actual column name and table name in your scenario.
  • Adjust the LIMIT value to retrieve the specified number of most common values.

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