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Editorial Team
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Asked: 2026-05-29T11:53:19+00:00

This is the code block in question: String sq = INSERT INTO survey (session_id,

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This is the code block in question:

String sq = "INSERT INTO survey (session_id, character_id, timestamp) VALUES (?,?,?)";
PreparedStatement sadd = conn.prepareStatement(sq, PreparedStatement.RETURN_GENERATED_KEYS);
sadd.setLong(1, sessionId);
sadd.setLong(2, character_id);
sadd.setString(3, dateTime);
int affectedrows = sadd.executeUpdate();

//get the ID
long resultId = 0;
ResultSet key = sadd.getGeneratedKeys();
if (key.next()) {
    resultId = key.getLong(1);
}

This query worked fine without the PreparedStatement.RETURN_GENERATED_KEYS option, but when I add it suddenly executeUpdate() throws an exception:

com.microsoft.sqlserver.jdbc.SQLServerException: A result set was generated for update.

If I take the PreparedStatement.RETURN_GENERATED_KEYS out, it works again fine. Out of frustration, I changed executeUpdate() to executeQuery() just to see if I could get the key back and got an exception that it can’t get keys because the statement must be executed first.

How can I get the generated key? I am using SQL Server 2008 and the latest JDBC driver.

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1 Answer

  1. Editorial Team

    Looks like a driver bug to me.

    You should try a newer 4.0 driver from here -> http://www.microsoft.com/download/en/details.aspx?id=11774

    If that does not work, one work around would be to create an ‘insert’ stored procedure and return the generated id as a stored procedure output parameter.

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