MysqlDataTruncation: Data too long for column is a common error when data length exceeds the defined column length in MySQL.This error occurs when the length of the string exceeds the maximum length allowed for the target column in the database schema.Two strategies to fix the error are: alter column definition and adjust data size to fit the column constraints.To alter the column definition, increase the column size to accommodate longer data values.To adjust data size, either validate the data before inserting or truncating it to the maximum size.In Java, when the error occurs, the application must catch the exception and log or notify the user.The article includes Java code examples to reproduce and fix the error using both strategies.By applying these techniques, data truncation issues can be resolved while maintaining data integrity and complying with database constraints.Download the full source code of the Java examples is provided at the end of the article.The article covers MySQL, MysqlDataTruncation, SQL, and error handling perspectives.