What is Newsequentialid SQL Server?
You can use NEWSEQUENTIALID to generate GUIDs to reduce page splits and random IO at the leaf level of indexes. Each GUID generated by using NEWSEQUENTIALID is unique on that computer. GUIDs generated by using NEWSEQUENTIALID are unique across multiple computers only if the source computer has a network card.
What is Newsequentialid ()?
SQL Server NEWSEQUENTIALID function is used to generate incremental unique values of type uniqueidentifier. NEWSEQUENTIALID function can only be used with DEFAULT constraints on table columns of type uniqueidentifier. A return type of NEWSEQUENTIALID function is uniqueidentifier.
Does Azure SQL support sharding?
To easily scale out databases on Azure SQL Database, use a shard map manager. The shard map manager is a special database that maintains global mapping information about all shards (databases) in a shard set. The metadata allows an application to connect to the correct database based upon the value of the sharding key.
Does Azure SQL support replication?
Transactional replication is a feature of Azure SQL Managed Instance and SQL Server that enables you to replicate data from a table in Azure SQL Managed Instance or a SQL Server instance to tables placed on remote databases. This feature allows you to synchronize multiple tables in different databases.
What is a comb GUID?
The COMB GUID (with embed date and time) becomes a sequential GUID, with each GUID being sequentially after the previous GUID. This works great for indexing and sorting. But you cant just replace or insert this time stamp anywhere in the GUID, any part of the GUID with the date/time, it depends on the Database Server.
Is GUID sequential?
If the GUIDs are being generated so quickly that the system clock has not moved forward since the last GUID’s timestamp, then the GUID generation algorithm will generally stall until the system clock increments the timestamp. Sequential GUIDs are not actually sequential.
Is Azure SQL horizontally scalable?
Azure SQL Database supports two types of scaling: Vertical scaling where you can scale up or down the database by adding more compute power. Horizontal scaling where you can add more databases and to shard your data into multiple database nodes.
What is sharding in Azure database?
A shard is an individual partition that exists on separate database server instance to spread load. Auto sharding or data sharding is needed when a dataset is too big to be stored in a single database. As both the database size and number of transactions increase, so does the response time for querying the database.
How do I replicate an SQL database in Azure?
Replication can be configured by using SQL Server Management Studio or by executing Transact-SQL statements on the publisher. You cannot configure replication by using the Azure portal. Replication can only use SQL Server authentication logins to connect to Azure SQL Database. Replicated tables must have a primary key.
What is Azure SQL geo-replication?
Active geo-replication is an Azure SQL Database feature that allows you to create readable secondary databases of individual databases on a server in the same or different data center (region).
What is azure GUID?
The tenant GUID is an identifier that is used by Azure AD. It is used in Gizmo WebUI SSO to ‘lock’ a WebUI to a Microsoft tenant. The main (and unique) domain name associated to a tenant is based on . onmicrosoft.com domain (e.g. gsxclients.onmicrosoft.com).