Why Does My Java Code Throw a 'java.sql.SQLException: Exhausted ResultSet' Error When Querying Oracle?

Resolving "java.sql.SQLException: Exhausted ResultSet" When Querying an Oracle Database

This error typically arises from attempting to access result set data after the result set has been exhausted. Let's analyze the provided code snippet:

if (rs != null) {
    while (rs.next()) {
        count = rs.getInt(1);
    }
    count = rs.getInt(1); // This line can cause the error
}

As stated in the code comments, the result set (rs) contains data and the rs.next() method returns true. This indicates that the result set has not been exhausted yet.

However, the error occurs when trying to access count = rs.getInt(1) after the while loop has finished processing the result set. At this point, the result set is considered exhausted, and any attempt to retrieve data from it will result in the "Exhausted ResultSet" exception.

To resolve this issue, ensure that you retrieve all necessary data within the while loop. Accessing result set data outside the loop will lead to this error.

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