Error code
MySQL 1406
MYSQL1406
Database Error Code· An error code returned by a database server such as PostgreSQL or MySQL.
What it means
Data too long for column — string exceeds column size.
How to fix it
- Increase the column size with ALTER TABLE ... MODIFY COLUMN ... VARCHAR(<new_length>).
- Truncate or validate the value in application code before writing to the database.
- Review whether the column definition accounts for the maximum expected input length.
Not affiliated with MySQL. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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