Thursday, August 16, 2007

throw-away PreparedStatement +! param

%% Answer: Unimportant question. If you must know the technical answer, it's usable but not recommended
 
--based on http://java.sun.com/docs/books/tutorial/jdbc/basics/prepared.html :

The main feature of a PreparedStatement object is that, unlike a Statement object, it is given an SQL statement when it is created. The advantage to this is that in most cases, this SQL statement is sent to the DBMS right away, where it is compiled(in *DBMS*). As a result, the PreparedStatement object contains not just an SQL statement, but an SQL statement that has been precompiled. This means that when the PreparedStatement is executed, the DBMS can just run the PreparedStatement SQL statement without having to compile it first.

Although PreparedStatement objects can be used for SQL statements with no parameters, you probably use them most often for SQL statements that take parameters.

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