This command can be submitted at any time.As a result of the CLONE command, the system simply creates a new entry in the metadata store to keep track of the new clone.In addition to simple cloning of objects, you can blend cloning with Snowflake In addition, once cloned, cloned objects are independent of each other. VPS instances are currently available only on AWS.I recommend working through the hands-on overview described in the The tutorial makes heavy use of Snowflake worksheets, a convenient way of running commands and SQL within the web UI. To move a BigQuery data set from one region to another, you have to export it to a Google Cloud Storage bucket in the same location as your data set, copy the bucket to the new location, and load that into BigQuery in the new location.Snowflake uses virtual compute instances for its compute needs and a storage service for persistent storage of data. A Redshift data warehouse is a cluster that can automatically deploy and remove capacity with concurrent query load. Snowflake is a database built from scratch from the cloud – as a result, unlike others that were not, they were able to start without the burden of any traditional architecture and make the best no compromise decisions in designing the Snowflake architecture. DBCC CLONEDATABASE creates a schema-only copy of a database that includes all the elements necessary to troubleshoot query performance issues without copying the data.

In Snowflake, as I have just shown, you can do this with ease with just a few commands (one of the many benefits resulting from having written Snowflake from scratch for the cloud).
Despite being independent, there are no additional storage requirements and thus no additional charge, since these clones share files. A cloned database or schema includes only pipe objects that reference external (Amazon S3, Google Cloud Storage, or Microsoft Azure) stages; internal (Snowflake) pipes are not cloned. This is possible due to Snowflake’s architecture of storing data as immutable in S3 and versioning the changes and storing the changes as Metadata. To copy the latest runtime statistics as part of the query store, execute sp_query_store_flush_db to flush the runtime statistics to the query store before executing DBCC CLONEDATABASE.The following messages are an example of the messages logged in the error log during the cloning process:The following example creates a clone of the AdventureWorks database that includes schema, statistics and query store data ( SQL Server 2016 (13.x) SP1 and later versions)The following example creates a clone of the AdventureWorks database that does not include statistics ( SQL Server 2014 (12.x) SP2 CU3 and later versions)The following example creates a clone of the AdventureWorks database that does not include statistics and query store data ( SQL Server 2016 (13.x) SP1 and later versions)The following example creates a schema-only clone of the AdventureWorks database without statistics and query store data that is verified for use as a production database ( SQL Server 2016 (13.x) SP2 and later versions).The following example creates a schema-only clone of the AdventureWorks database without statistics and query store data that is verified for use as a production database.

CLR procedures are supported starting with SQL Server 2014 (12.x) SP2 CU3. When creating a data warehouse (see screenshot above) there’s an option to allow multiple clusters, an option to set the scaling policy, an option to auto-suspend, and an option to auto-resume. However, all of the cluster nodes are provisioned in the same availability zone.Microsoft Azure SQL Data Warehouse is a cloud-based data warehouse that uses the Microsoft SQL engine and MPP (massively parallel processing) to quickly run complex queries across petabytes of data. The metadata repository still retains the record for all versions of the data set.Because of the data in the metadata store, the user can quickly create a clone of the table. Snowflake can even scale automatically to handle varying concurrency demands with its multi-cluster virtual warehouse feature, transparently adding compute resources during peak load periods and scaling down when loads subside.Competitors to Snowflake in the cloud include Amazon Redshift, Google BigQuery, and Microsoft Azure SQL Data Warehouse. Thinkstock That also applies to external data sets and storage buckets. A snapshot of the table data represents the state of the source data when the statement is executed or at the specified time/point

Cloning a database will clone all the schemas and tables within that database. schema_name or schema_name.It is optional if a database and schema are currently in use within the user session; otherwise, it is required. represents the state of the source data either at the time the statement is executed or at the specified time/point in the past (using Based on our unique solution, Snowflake users are able to clone their tables, schema or databases without creating additional copies. The internal data objects are only accessible through SQL queries. More recently, he has served as VP of technology and education at Alpha Software and chairman and CEO at Tubifi. Cloning creates a new table in snowflake (The underlying data is not copied over or duplicated) If you make any changes to the new table, the original table is unaffected by those changes.
The schema information is at top left, the query results are at bottom left, and the query history with timings is at bottom right.Overall, I find Snowflake quite impressive. You can run all these commands either from Snowflake web console or from your local machine using SnowSQL CLI. Snowflake cannot be run on private cloud infrastructures (on-premises or hosted).There is no installation to perform, and no configuration. You can use Azure SQL Data Warehouse as a key component of a big data solution by importing big data into SQL Data Warehouse with simple PolyBase T-SQL queries, then using the power of MPP to run high-performance analytics.Azure SQL Data Warehouse is available in 40 Azure regions around the world, but a given warehouse server only exists in a single region. Using this snapshot prevents blocking and concurrency problems when these commands are executed. In previous versions of SQL Server, the command did not copy the statistics necessary to accurately troubleshoot columnstore index queries and manual steps were required to capture this information.

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