A query works the same way – it adds meaning to the code, allowing the system to understand and execute actions accordingly. Be it SQL or any other query language, both the user and the database can exchange information as long as they use the same language. ...
Generally, an intrinsic function is foldable if it is a function of its inputs only and not other contextual information, such as SET options, language settings, database options, and encryption keys. Nondeterministic functions aren't foldable. Deterministic built-in functions are foldable, with ...
Generally, an intrinsic function is foldable if it is a function of its inputs only and not other contextual information, such as SET options, language settings, database options, and encryption keys. Nondeterministic functions aren't foldable. Deterministic built-in functions are foldable, with ...
You can use Query Store in all databases without concerns, in even densely packed Azure SQL Database elastic pools. All previous issues related to excessive resource usage that might have occurred when Query Store was enabled for the large number of databases in the elastic pools have been ...
For querying graphs, the derive statement has an extended meaning in that it allows one to refer to subgraphs of the database graph. A powerful rewrite operation is offered for the manipulation of hetereogeneous sequences of objects which often occur as a result of accessing the database ...
The meaning of the code in the expression is, return every customer in the Customers table in the database in the query results. Query expressions return a type that implements IQueryable<T> and IEnumerable<T>, and so they can be iterated using the Seq module as the example shows....
Meaning fsId File system ID. dtreeId Dtree ID. snapName Snapshot name. TP Snapshot point in time. rbState Snapshot rollback status. rbState Snapshot rollback progress. type Snapshot type. createTime Time when a snapshot is created. ...
Meaning ReadLock Read lock. ReadunLock Read unlock. WriteLock Write lock. WriteunLock Write unlock. domainId Domain ID. domain ref Domain reference. mngConnStatus Management link status. DB domainId ID of a domain in a database. primaryZoneId ...
Thequery optimizer(called simply theoptimizer) is built-in database software that determines the most efficient method for a SQL statement to access requested data. 4.1.1Purpose of the Query Optimizer The optimizer attempts to generate the most optimal execution plan for a SQL statement. ...
SQL statements can incorporate program flow controls, meaning that a statement can incorporate table and row selection -- as in the previous example -- and then operate on the data contained in those columns. For example, the following command selects the name, telephone number and birthdate fo...