How to Handle MySQL's 0000-00-00 00:00:00 DATETIME Values with JDBC?

JDBC Null Handling for DATETIME Values of 0000-00-00 00:00:00

MySQL treats DATETIME values of 0000-00-00 00:00:00 as "quasi-null" values, and attempting to retrieve such values as strings from a JDBC connection can result in an exception.

To handle this issue, consider using the following solutions:

Option 1: Casting to CHAR

You can explicitly cast the DATETIME column to CHAR in your SQL query:

SELECT CAST(add_date AS CHAR) AS add_date

This will return the raw DATETIME string without casting it to a specific data type.

Option 2: Using JDBC Configuration

Alternatively, you can configure your JDBC URL with the zeroDateTimeBehavior parameter:

jdbc:mysql://yourserver:3306/yourdatabase?zeroDateTimeBehavior=convertToNull

With this configuration, DATETIME values of 0000-00-00 00:00:00 will be automatically converted to NULL in your ResultSet.

The zeroDateTimeBehavior parameter can take different values:

• exception: Throws an exception (default)
• convertToNull: Converts the value to NULL
• round: Rounds the value to the nearest closest value (0001-01-01)

Note that this setting affects all DATETIME columns in your database.

Source:

• MySQL Manual: https://dev.mysql.com/doc/connector-j/5.1/en/connector-j-reference-configuration-properties.html

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