How to Resolve the 'java.sql.SQLException: Before start of result set' Exception?

"java.sql.SQLException: Before start of result set" Exception in ResultSet

The "java.sql.SQLException: Before start of result set" exception occurs when accessing data from a ResultSet object before advancing the cursor to the first row. This issue arises when navigating through the result set and attempting to retrieve data without moving the cursor to the appropriate position.

In this specific case, the code executes a SQL query and stores the result in a ResultSet object, as seen below:

ResultSet result = prep.executeQuery();

After obtaining the result, the code moves the cursor to the row before the first using the beforeFirst() method:

result.beforeFirst();

This places the cursor in a position that is not yet within the result set. To rectify this, the cursor must be advanced to the first row using the next() method, as demonstrated below:

result.next();
String foundType = result.getString(1);

Alternatively, the cursor can be repositioned using a while loop that iterates through the result set:

while (result.next()) {
   foundType = result.getString(1);
   // Process the data
}

By moving the cursor to the first row or iterating through the result set, the exception is avoided and data can be successfully retrieved from the ResultSet object.

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