For more information and performance considerations on user-defined functions, see Create user-defined functions (Database Engine). Valid statements in a function The types of statements that are valid in a fun
For more information and performance considerations on user-defined functions, see Create user-defined functions (Database Engine). Valid statements in a function The types of statements that are valid in a function include: DECLARE statements can be used to define data variables and cursors that ...
Now that I have an enumerable object, I define a table-valued function just as I did with the RegexMatches function. Figure 4 Custom Enumerable Object for Groups 複製 internal class GroupNode { private int _index; public int Index { get { return _index; } } privat...
CREATE FUNCTION (SQL 純量、表格或列) 陳述式用來定義使用者定義的 SQL 純量、表格或列函數。 每次呼叫純量函數時都會傳回單一值,而且在 SQL 表示式有效的地方通常都有效。表格函數可以在 FROM 子句中使用並傳回表格。列函數可以用作轉換函數並傳回列。 呼叫 此陳述式可以內嵌在應用程式中,或透過使用動態 SQL...
In the definition of another user-defined function To parameterize a view or improve the functionality of an indexed view To define a column in a table To define a CHECK constraint on a column To replace a stored procedure Use an inline function as a filter predicate for a security policy ...
Planning for In-Memory Natively compiled Administration of In-Memory Architecture of In-Memory T-SQL for In-Memory T-SQL for In-Memory Guide to query processing Supported T-SQL Unsupported T-SQL Unsupported features DDL for natively compiled Define Durability Data types Indexes for In-Memory SSIS...
SqlQuerycan be used with any scalar type supported by your database provider. If you'd like to use a type not supported by your database provider, you can usepre-convention configurationto define a value conversion for it. SqlQueryRawallows for dynamic construction of SQL queries, just like...
A RexNode might be a reference to a field from an input to the RedNode, a function call (RexCall), a window (RexOver), etc. The operator within the RexCall defines what the node does, and operands define arguments to the operator. For example, 1 + 1 would be represented as a Rex...
The CREATE FUNCTION (SQL table) statement creates an SQL table function at the current server. The function returns a set of rows. Invocation for CREATE FUNCTION (SQL table) This statement can only be dynamically prepared only if dynamic rules run behavior is in effect. For more information, ...
Operator and Function: The operators and functions for composing SQL expressions. For more contents about operators and functions, please refer to Instructions about how to construct a SQL query function.Get Values: All values in a field without duplicates. You can click the Get Unique Values ...