How to Correctly Use setDate in PreparedStatement with String Inputs?

Handling String Dates in PreparedStatement

The error arises from attempting to use a String with setDate, which requires a java.sql.Date object. Here's how to correctly handle string date inputs:

Method 1: Convert String to java.sql.Date

This approach converts your string date into a java.sql.Date object before passing it to setDate. This requires a DateFormat object (e.g., SimpleDateFormat) to parse the string:

java.sql.Date date = new java.sql.Date(dateFormatMDY.parse(vDateMDYSQL).getTime());
prs.setDate(2, date); 

Remember to handle potential ParseException exceptions during the parsing process.

Method 2: Use setString and Database Conversion

This method utilizes setString and relies on the database to perform the date conversion. Your SQL query needs to include a to_date function (or equivalent for your database system) to convert the string to a date:

prs.setString(2, vDateMDYSQL);
// ... SQL statement ...
to_date(?, 'MM/dd/yyyy HH:mm:ss') 
// ... rest of the SQL statement ...

The format string ('MM/dd/yyyy HH:mm:ss') must match the format of your vDateMDYSQL string. Adjust as needed for your specific date format.

The optimal method depends on your application's needs and database capabilities. Method 1 offers better control on the client-side but requires error handling. Method 2 simplifies Java code but shifts the conversion burden to the database. Consider factors like database performance and error handling when choosing the best approach.

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