SQL Server service broker - August 29, 2008 at 18:00 PM by Amit
Explain the components of SQL server service broker.
Below are the Service Broker infrastructure components:
Remote Binding Service
SQL Server service broker - March 10, 2009 at 19:00 PM by
What do we need Queues?
A queue holds the incoming message before they are processed for a service.
One queue per service is created.
A queue can be created using:
CREATE QUEUE [QueueName]
What is “Asynchronous” communication?
In Asynchronous communication, messages can be queued until the service which
was down is up and running. Asynchronous communication is loosely coupled. This
means that there can be another component waiting to acknowledge the message.
In this communication, the sender need not wait for a response but can continue
What is SQL Server Service broker?
SQL service broker provides a mechanism to queue provide reliable messaging for
SQL server. Using SQL server, the service broker assists in passing messages
between applications. It also rejects messages with invalid format and performs
retries. Service broker helps to make scalable and secure database
What are the essential components of SQL Server Service
The components in SQL server Service broker are represented by Server objects
used in the messaging. Queue is an object that holds the messages for
processing. Dialogues exchanged between two endpoints are grouped by
conversation groups. There are some components used at design time called as
service definition components used to specify the basic design of the
application. Routing and security components are used to define the
What is the main purpose of having Conversation Group?
Any application using service broker communicates by exchanging conversations
that is nothing but asynchronous and reliable messages. Conversation group is a
group of conversations used to accomplish the same task. These groups help in
concurrency. They can also be used to manage the states.
How to implement Service Broker?
Using Transact SQL statements service broker can be used. An application can be
implemented as a program running outside of SQL Server or as a stored
procedure. Service broker uses a number of components to perform a task. A
program that starts a conversation creates and sends a message to a service
that may or may not respond. Any application that intends to use Service broker
does not need any special object model or library. Transact-SQL commands to SQL
Server can be sent for processing.
How do we encrypt data between Dialogs?
Using Dialog Security the dialogues can be encrypted at the initiator and then
decrypted at the target. Dialogue security can be implemented by implemented as
full dialogue security or anonymous dialog security. In full dialogue, both the
database that initiates the service and database that calls the service to be
implemented needs to have two users. Each service in the conversation is bound
by a remotes service. A certificate is associated with each user, so that
messages can be encrypted using the recipient's public key and decrypted using
the corresponding private key. If anonymous dialog security is used, target
service need not explicitly permit access to a remote user. A guest account can
be used to generate a session key and encrypt the message.
SQL Server service broker - May 18, 2009 at 10:00 AM by Rajmeet
What is Service Broker?
Catalog views serve as a repository to store static metadara like server side
and database specific objects. This includes logins, tables, stored procedures
etc. It is always better to use catalogue views to view system data rather than
using system tables.
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