Java – How to connect to database in java without jdbc and other frameworks?

javajdbc

Is there any other way to connect to the database other than making a jdbc connection or using frameworks which internally use jdbc.

Best Answer

Sure, it's possible. But not likely.

You'd have to understand the protocol that the database vendor expected completely.

You'd have to write your own client to converse with the vendor's listener on the server side.

It can be done, but I doubt that you or I would be up to it.

The big question is: why?

Related Solutions

Java – What are the differences between a HashMap and a Hashtable in Java

There are several differences between HashMap and Hashtable in Java:

Hashtable is synchronized, whereas HashMap is not. This makes HashMap better for non-threaded applications, as unsynchronized Objects typically perform better than synchronized ones.
Hashtable does not allow null keys or values. HashMap allows one null key and any number of null values.
One of HashMap's subclasses is LinkedHashMap, so in the event that you'd want predictable iteration order (which is insertion order by default), you could easily swap out the HashMap for a LinkedHashMap. This wouldn't be as easy if you were using Hashtable.

Since synchronization is not an issue for you, I'd recommend HashMap. If synchronization becomes an issue, you may also look at ConcurrentHashMap.

Java – How to efficiently iterate over each entry in a Java Map

Map<String, String> map = ...
for (Map.Entry<String, String> entry : map.entrySet()) {
    System.out.println(entry.getKey() + "/" + entry.getValue());
}

On Java 10+:

for (var entry : map.entrySet()) {
    System.out.println(entry.getKey() + "/" + entry.getValue());
}

Best Answer

Related Solutions

Java – What are the differences between a HashMap and a Hashtable in Java

Java – How to efficiently iterate over each entry in a Java Map

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