Validate Date Format YYYY-MM-DD in MySQL Using REGEXP
Use MySQL REGEXP to validate YYYY-MM-DD date format stored as strings. SQL examples for date string format validation.
The Regex Pattern
Regex pattern
^\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$Use this pattern with MySQL's REGEXP operator.
MySQL SQL Example
-- Filter a records table in MySQL where a date stored as VARCHAR needs to be validated against YYYY-MM-DD format
SELECT *
FROM your_table
WHERE your_column REGEXP '^\\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12][0-9]|3[01])$';How This Works
Filter a records table in MySQL where a date stored as VARCHAR needs to be validated against YYYY-MM-DD format. The regex pattern is used with MySQL's REGEXP operator to filter rows at the database level.
Using regex directly in SQL is efficient for use cases like data validation — it avoids loading data into application memory just to filter it with a regex.
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