java sql query with parameters
statement =con.prepareStatement("SELECT * from employee WHERE userID = :userId");
statement.setString(userId, userID);
ResultSet rs = statement.executeQuery();
// Or, you can use ? in place of named value - :userId..
statement =con.prepareStatement("SELECT * from employee WHERE userID = ?");
statement.setString(1, userID);A good way of running a SQL query in JDBC using a parameterized statement
// Connect to the database.
Connection conn = DriverManager.getConnection(URL, USER, PASS);
// Construct the SQL statement we want to run, specifying the parameter.
String sql = "SELECT * FROM users WHERE email = ?";
// Generate a prepared statement with the placeholder parameter.
PreparedStatement stmt = conn.prepareStatement(sql);
// Bind email value into the statement at parameter index 1.
stmt.setString(1, email);
// Run the query...
ResultSet results = stmt.executeQuery(sql);
while (results.next())
{
// ...do something with the data returned.
}Copyright © 2021 Codeinu
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