What is the difference between the transactional replication and the snapshot replication?
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What is the difference between the transactional replication and the snapshot replication?
SQL Server Transactional Replication Unlike the snapshot agent which takes a snapshot of the whole article (table, view, etc), in transactional replication we have a log reader agent, it reads the logs and looks for transactions which are marked for publication, it delivers these transactions to the distributor.
How do I remove transaction replication?
To remove a replication, you must drop the subscriptions, the publications, and the distributor that is configured for the replication. You can remove the replication by running the Transact-SQL script that is generated by SQL Server Enterprise Manager or SQL Server Management Studio.
How do you stop merge replication?
Using Transact-SQL
- Stop all replication-related jobs.
- At each Subscriber on the subscription database, execute sp_removedbreplication to remove replication objects from the database.
- At the Publisher on the publication database, execute sp_removedbreplication to remove replication objects from the database.
How do I delete replication in SSMS?
- In the Microsoft SQL Server Management Studio, select the Satellite server, and expand the Replication folder in the Object Explorer window.
- Under Replication, further expand the Local Publications folder.
- Right-click the appropriate publication, and select Delete.
How do I remove a publication from monitor replication?
To remove a Publisher from Replication Monitor
- Right-click a Publisher in the left pane.
- Click Remove.
What are the types of replication in SQL Server?
There are four MS SQL Server replication types: snapshot replication, transactional replication, peer-to-peer replication and merge replication.
- Snapshot replication.
- Transactional replication.
- Peer-to-peer replication.
- Merge replication.
- Configuring users for MS SQL Server.
- Importing a database from a backup.
How do you reinitialize transactional Replication?
Connect to the Publisher in Management Studio, and then expand the server node. Expand the Replication folder, and then expand the Local Publications folder. Expand the publication that has the subscription you want to reinitialize. Right-click the subscription, and then click Reinitialize.
How does merge Replication work?
Merge replication allows various sites to work autonomously and later merge updates into a single, uniform result. Because updates are made at more than one node, the same data may have been updated by the Publisher and by more than one Subscriber.
How does merge replication work?
What is Log_reuse_wait_desc?
Firstly, what is log_reuse_wait_desc? It’s a field in sys. databases that you can use to determine why the transaction log isn’t clearing (a.k.a truncating) correctly.
What is Sp_replflush?
sp_replflush is used by other replication stored procedures whenever an article definition is modified or dropped. Only one client connection can have log reader access to a given database. If a client has log reader access to a database, executing sp_replflush causes the client to release its access.
How reinitialize merge replication in SQL Server?
Expand the Replication folder, and then expand the Local Publications folder. Expand the publication that has the subscription you want to reinitialize. Right-click the subscription, and then click Reinitialize. In the Reinitialize Subscription(s) dialog box, select options, and then click Mark for Reinitialization.
What does reinitializing a subscription do?
Reinitializing a subscription involves applying a new snapshot of one or more articles to one or more Subscribers: transactional and snapshot replication allow individual articles to be reinitialized; merge replication requires all articles to be reinitialized.
What is special with the merge replication?
A key characteristic of merge replication is that it permits both the primary server (publisher) and the subscriber servers to independently modify the database. All changes are synchronized by merge agents installed on all servers, and a preconfigured conflict resolution mechanism kicks in to solve any data conflicts.
