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What is session and connection?
Up vote 14. Literally : Connection is Physical Communication Channel and Session is a state of information exchange. A Connection may have multiple sessions . The connection is the physical communication channel between SQL Server and the application: the TCP socket, the named pipe, the shared memory region.
What is the difference between the connections and sessions to the database?
Connection represents connection to the server over a network or locally through shared memory . A session represents a user process within SQL Server. A connection may be linked with zero or more then one session.
What is difference between SSL connection and SSL session?
An SSL Connection is a network transport that provides a suitable type of service. It is a transient, peer-to-peer communication link. It is associated with only one SSL Session. However, an SSL Session is an association between a client and a server.
What is TCP session?
The TCP session is sending packets as fast as possible, so when the client sends the FIN and closes its part, the server is still sending lots of data for a moment. In this case, the client sends RST packets until the server stops sending data.
What is session transaction?
A session is what you use to interact with the database. A transaction is used to specify boundaries for the session to operate within. Essentially, transactions prevent the database from being corrupted by only allowing a session to interact with it at one time.
What is session in process?
A session is a collection of process groups, which are either attached to a single terminal device (known as the controlling terminal) or not attached to any terminal.
Are sessions stored in database?
A session ID is stored in a cookie. If a hacker can steal that ID, he can pretend to be someone else, because a session is identified by… it’s ID. By saving a user’s session ID, IP and agent server-side (your database for example) you can compare the data saved in the database with the client.
Is it good to store session in database?
Store sessions in database is a good idea when you have to shared session storage for multiple website. If this is not the case, store the session as filesystem is fine. One advantage of keeping session data in the database is that you can combine it with meta data like user ID, time of login etc.
How does a session work in a database?
Session is more than just a transaction, it is an implementation of UnitOfWork pattern. In other words it holds on to the loaded objects, knows which objects has to be persisted etc: A Unit of Work keeps track of everything you do during a business transaction that can affect the database.
Why is it good save to save sessions in the database?
An easy way to make sure that sessions continue to work properly is to store sessions in a central database that is common to all servers. The application needs to be able to run on a shared host, where there are significant security concerns associated with storing session data in the filesystem.
What do you need to know about session in PHP?
In the previous tutorial, we discussed the session in PHP. A session is used to store the information on the server rather than the client computer. Whenever we create a login system we need an MYSQL database.We can logIn by fetching user data from the MYSQL database table.
How to create an instance of databaseessionmust?
Instances of DatabaseSessionmust be created from a Projectinstance. Initialize this project with all of the appropriate database login parameters, such as the JDBC driver and the database URL. Refer to “Understanding Database sessions”for more information on reading the TopLink Mapping Workbench project file.