How to check if a record is present in a table?

Question

Java

There is a code:

Connection c = DriverManager.getConnection(road);
if(!c.createStatment().executeQuery("SELECT * FROM users WHERE name = 'name'").isBeforeFirst()){
//TODO... 
return;
} 
if(c.createStatment().executeQuery("SELECT * FROM users WHERE name = 'name'").getString("address") == "0.0.0.0"){
//TODO... 
return;
}

Problem: when requested, it returns that the string does not exist, even though it exists. When the first and second checks are interchanged, the first one is performed. What's the matter?

Answer 1

https://ru.stackoverflow.com/questions/417405/%D0%...