prepared-statement

I am thinking of rewriting some open-source application for my purposes to PDO and transactions using InnoDB (mysql_query and MyISAM now). My question is: Which cases are reasonable for using prepared statements? Because everywhere I am reading is stated (even in many posts here) that I should use prepared statements every time and everywhere because of the 1. security and 2. performance. Even PHP manual recommends using prepared statements and not mentioning the escape-thing. You can't deny the security mechanism. But thinking it over and over it comes to mind that having to prepare the

I am trying to bind params to a INSERT INTO MySQLi prepared statement if that variable exists, otherwise insert null. This is what I have, but it is not working: if (!empty($name)) { $result->bind_param('ss', $name, $url_friendly_name); } else { $result->bind_param('ss', null, null); } if (!empty($description)) { $result->bind_param('s', $description); } else { $result->bind_param('s', null); } Does anyone know of a better way of doing this or is there just a minor issue with my code. I am doing the above for each variable in the prepared statement. bind_param works by reference. That means

How do I insert date, without time, to MySQL database table? I tried these codes but I get the following exception: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Mar 05 00:00:00 GMT-08:00 2014,1,1)' at line 1 NOTE: In MySQL table, data type of this column I chose date datatype String Date = "\\d\\d\\d\\d\\D[0-1][0-9]\\D[0-3][0-9]"; while (DateMatcher.find()) { String date = DateMatcher.group().trim(); DateFormat formatter = new SimpleDateFormat(

By default, the parameter statement treshold is set to 5, instead of 1. That is, ((PGStatement) my_statement).getPrepareThreshold() always returns 5 by default. What would be the reason for that? Why would I want not to have to use the server-side prepared statement for the first 4 times the query is executed? I fail to understand why I would ever set this to another value than 1 and why this isn't by default set to 1. Can you explain? Thanks a lot. Server side prepared statements consume server side resources to store the execution plan for the statement. The threshold provides a heuristic

I create my prepared statement as: pg_prepare('stm_name', 'SELECT ...'); Today, I had a problem (calling twice a function for mistake) when declaring a prepared statement with the same name twice: Warning: pg_prepare() [function.pg-prepare]: Query failed: ERROR: prepared statement "insert_av" already exists in xxx on line 221 So, as the question title, there is a way to check if a prepare statement with the same label already exists, and in case, overwrite it? I know this error is from my mistake and will be solved by simply declaring the prepared statements at the begin of my code, but I'm

What is the recommended method for escaping variables before inserting them into the database in Java? As I understand, I can use PreparedStatement.setString() to escape the data, but PreparedStatement seems somewhat impractical if I don't plan to run the same query ever again.. Is there a better way to do it without preparing every query? Yes, use prepared statements for everything. They're parsed once. They're immune from SQL injection attacks. They're a better design because you have to think about your SQL and how it's used. If you think they're only used once, you aren't looking at the