A) Extra database filegroups may be introduced through Transact-SQL commands.
B) The highest possible size of a database is defined by its database Edition.
C) Extra database files can be inserted using Transact-SQL commands.
D) All databases located on a server should share the same database Edition.
The correct choice is Option B: The highest possible size of a database is defined by its database Edition.
- Statement 1: Extra database filegroups may be introduced through Transact-SQL commands
- Statement 2: The highest possible size of a database is defined by its database Edition is True
- Statement 3: Extra database files can be inserted using Transact-SQL commands
- Statement 4: All databases located on a server should share the same database Edition
- Conclusion
Let’s examine each statement individually to clarify why option B is the accurate one among them:
Statement 1: Extra database filegroups may be introduced through Transact-SQL commands
In Azure SQL Database, adding more filegroups through Transact-SQL is not possible as it is in on-premises SQL Server. Azure SQL Database autonomously handles and scales storage. Unlike on-premises SQL Server, users aren’t required to create or oversee filegroups. Therefore, this statement is inaccurate.
Statement 2: The highest possible size of a database is defined by its database Edition is True
Indeed, this statement is correct. In Azure SQL Database, the maximum size of the database is contingent on the edition selected (for example, Basic, Standard, Premium). Each edition comes with varying limits in size and performance characteristics. Let’s review each of these editions.
1. Basic Edition
The maximum database size is 2 GB and it is primarily utilized as a development database with limited storage requirements.
2. Standard Edition
The maximum database size is 1TB and it serves a medium-sized application that necessitates both increased storage and superior performance compared to the Basic edition.
3. Premium Edition
The maximum database size is 4TB, catering to large-scale applications with significant storage demands and stringent performance requirements.
Statement 3: Extra database files can be inserted using Transact-SQL commands
Within Azure SQL Database, manually adding extra database files through Transact-SQL commands is not permitted. This mirrors the limitation associated with adding additional filegroups. Instead, the Azure SQL Database autonomously oversees and allocates storage for users.
This implies that Azure SQL Database adjusts storage automatically, depending on the service tier and performance level selected. It scales adeptly while sustaining performance without requiring manual intervention. Hence, this statement is incorrect.
Statement 4: All databases located on a server should share the same database Edition
In Azure SQL Database, it is not necessary for all databases on a server to possess the same edition or performance tier. You have the flexibility to utilize different editions (such as Basic, Standard, Premium) and performance levels for databases within the same server in Azure SQL Database. This enables individual configuration of each database based on its particular requirements.
For instance, you may employ the Premium edition for high-performance requirements while utilizing the Standard edition for less critical databases to save expenses. This configuration allows each database to be optimized according to its specifications, thereby enhancing resource and performance management.
Conclusion
The maximum size of a database within Azure SQL Database is contingent on its chosen edition, be it Basic, Standard, or Premium. Manual addition of filegroups or extra database files isn’t possible; the system manages that aspect automatically. Different databases on the same server can operate with various editions and performance tiers, tailoring them to their specific requirements. Understanding these factors aids in the effective management and enhancement of database performance.
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