boolean execute = preparedStatement.execute()
时间: 2024-05-19 14:13:50 浏览: 13
This line of code executes a SQL prepared statement and returns a boolean value indicating whether the statement returned a ResultSet or not.
If the statement returns a ResultSet (i.e., the SQL query returns one or more rows of data), then the boolean value returned by the execute() method is true. The ResultSet can then be retrieved using the getResultSet() method of the PreparedStatement object.
If the statement does not return a ResultSet (i.e., the SQL query is an update, insert, or delete statement), then the boolean value returned by the execute() method is false. In this case, any auto-generated keys or update counts can be retrieved using the getGeneratedKeys() or getUpdateCount() methods of the PreparedStatement object, respectively.
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