Screenshot of MySQL code snippet to count values in a field

Counting Distinct Values in a Single Field

A quick MySQL snippet to count how many times a value appears in a single field—much easier to grok than multiple JOINs.

SELECT
COUNT(CASE WHEN meta_value = 'value1' THEN 1 END) AS value1,
COUNT(CASE WHEN meta_value = 'value2' THEN 1 END) AS value2
FROM wp_post_meta;

/** Results

| value1 | value2 |
|--------|--------|
| 75     | 56     |
*/

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