What is the default page size in SQL Server?
8-KB
As mentioned, in SQL Server, the page size is 8-KB. This means SQL Server databases have 128 pages per megabyte. Each page begins with a 96-byte header that is used to store system information about the page.
How is XML stored in SQL Server?
In SQL Server, you usually store XML data in a column configured with the xml data type. The data type supports several methods that let you query and modify individual elements, attributes, and their values directly within the XML instance, rather than having to work with that instance as a whole.
Does SQL Server support XML?
Support for XML is integrated into all the components in SQL Server and includes the following: The xml data type. XML values can be stored natively in an xml data type column that can be typed according to a collection of XML schemas, or left untyped. You can index the XML column.
How do I set the page size in SQL?
At the SQL*Plus command line, type: set pagesize 30 – this will change the page size to 30 rows. set pause on – this will cause the output to pause every 30 lines; press the enter key to continue.
Can we change page size in SQL Server?
Short answer: you cannot change it. For reason of efficiency of addressing (TLB) and efficiency of IO (see Reading From or Writing To Files Using a Scatter-Gather Scheme) the database page size must be some multiple of the OS page size, which is driven by the platform hardware architecture.
Is XML the same as SQL?
SQL is good tabular data — data that easily fits into rows & columns. XML is good for hierarchical data — data which has several levels of different sizes. SQL is good for storage & searching. XML is good for transmitting & formatting.
What are the limitations of XML data type in SQL?
Note the following general limitations that apply to the xml data type: The stored representation of xml data type instances cannot exceed 2 GB. It cannot be used as a subtype of a sql_variant instance. It does not support casting or converting to either text or ntext. Use varchar(max) or nvarchar(max) instead.
What are the storage options for XML in SQL Server?
XML Storage Options. The storage options for XML in SQL Server include the following: Native storage as xml data type. The data is stored in an internal representation that preserves the XML content of the data. This internal representation includes information about the containment hierarchy, document order, and element and attribute values.
How to redundantly store documents in an XML data type?
If you query frequently, you can redundantly store the documents in an xml data type column and index it while you return exact document copies from the [n]varchar (max) column. The XML column may be a computed column, based on the [n]varchar (max) column.
Why use native XML features in SQL Server?
Following are some of the reasons to use native XML features in SQL Server instead of managing your XML data in the file system: You want to share, query, and modify your XML data in an efficient and transacted way. Fine-grained data access is important to your application.