Database transaction units dtu based model this model

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Database Transaction Units (DTU) based model- This model is based on acombined measure of computing, storage, and IO resources. Performance
levels are expressed in terms of DTUs for single databases and elastic DTUs (eDTUs) for elastic pools.Logical serversin Azure SQL offers both purchasing models: a DTU-basedpurchasing model and a vCore-based purchasing model.Managed Instancesin Azure SQL Database offer only the vCore-based purchasing model.4of10DTU and eDTUThe performance of SQL Database is based on DTU.According to Microsoft, a DTU is a unit of measure of the resources that are guaranteed to be available to a single Azure SQL Database at a specific performance level within a single database tier. A DTU combines CPU, memory, data I/O, and transaction I/O.Databases can be placed into an elastic poolon a SQL Database server that shares a pool of resources among those databases. The shared pool of resources are measured by elastic Database transition units (eDTU).The advantages of an elastic pool are:oThey are scaled automatically.oThey provide predictable costs.They are widely used for varyingand unpredictable usage patterns.5of10Determining DTUs for WorkloadsIf you are planning to move your on-premises Databases to Azure SQL Database, Azure provides a DTU Calculatorto find the approximate DTUs required for setting up the database.For an existing Azure Database, you can use SQL Data query performance insight. This Query performance insight provides a deeper insight into the resource consumption (DTU's) of Database, the top queries by CPU/Duration/Execution count, which can potentially be tuned for improved performance.
6of10Azure SQL Data SyncSQL Data Syncis a service developed on Azure SQL Database that allows you to synchronize the selected data bi-directionally across various SQL Server and SQL databases instances. Let'slook into the following video to know more about it.Azure SQL Database CLI 2.0 Commands1.To create a MySQL Database with given charset and collation rulesaz mysql db create --resource-group testgroup --server-name testsvr --name testdb --charset {valid_charset} --collation {valid_collation}2.To delete a DB:az mysql db delete -g testgroup -s testsvr -n testdb3.List all DB in a server:az mysql db list -g testgroup -s testsvr4.To show an existing Db:az mysql db show -g testgroup -s testsvr -n testdbYou can find more useful commands at Azure CLI docs.

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