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Constraints
You have tables with the following requirements: ✑ Some records in the table named OrderLines do not exist in the table named Order. ✑...
DMVs for SQL Database
SQL Database is the Azure version of SQL server. We can use the following DMVs to monitor SQL Database performance:...
SQL Sever Agent Jobs
Jobs are used to schedule background tasks (https://docs.microsoft.com/en-us/sql/ssms/agent/create-a-job?view=sql-server-ver15). SQL...
Query timeout
The reason that queries are receiving timeout errors is likely to because the statistics are being updated and queries need to wait for...
Database Throughput Unit (DTU)
A DTU is a single metric to represent CPU, memory, and IO thresholds. In other words, Queries' performance levels are measured as DTUs...
DMVs for memory-optimized tables
The goal of using memory-optimized tables is to execute processes as quickly as possible. Therefore, you should enable collection of...
Delayed Durability
SQL Server guarantees full transaction durability by default. If the system crashes for some reason after SQL Server confirms a...
Natively compiled stored procedures
A memory-optimized table is a highly optimized data structure that SQL Server uses to store data completely in memory without paging to...
Acquiring locks
SQL Server can acquire a lock on any of the following resources to ensure that the user of that resource has a consistent view of the...
Isolation levels
The goal of isolation levels is to ensure that queries return complete and consistent results while other concurrent processes are...
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