准备的语句，用于更新特定用户的属性-JDBC

Question

I have a user record in a database. What query should I use to update the project_key attribute of a specific user, I find by his login key. I tried to select the user and then use the updateString method of the result set. I also made the result set TYPE_SCROLL_INSENSITIVE and CONCUR_UPDATABLE , but that didn't do anything. So what should the query be? Thanks in advance.

Answer 1

Use PreparedStatement's executeUpdate()

String update = "UPDATE table SET project_key=? WHERE login=?";
PreparedStatement pstmt = conn.preparedStatement(update);
pstmt.setString(1, newKey);
pstmt.setString(2, userLogin);

int testForUpdate = pstmt.executeUpdate();

System.out.println(int>0?"Update was done":"No update occured");