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When used to invoke a scalar - valued user - defined function , the 在用于調(diào)用標(biāo)量值用戶定義函數(shù)時(shí), Parses and tunes queries referencing user - defined functions 分析和優(yōu)化引用用戶定義函數(shù)的查詢。 How to : delete stored procedures and user - defined functions >如何:刪除存儲過程和用戶定義的函數(shù) To open a stored procedure , user - defined function , or trigger 打開存儲過程、用戶定義函數(shù)或觸發(fā)器 For more information about clr user - defined functions , see 有關(guān)clr用戶定義函數(shù)的詳細(xì)信息,請參閱 Indexing computed columns that invoke a user - defined function 對調(diào)用用戶定義函數(shù)的計(jì)算列進(jìn)行索引 User - defined functions are not supported 不支持用戶定義函數(shù)。 Is the name of the user - defined function 用戶定義函數(shù)的名稱。 Indicates whether the user - defined function is deterministic 指示用戶定義的函數(shù)是否是確定性的。
A User-Defined Function (UDF) is a function provided by the user of a program or environment, in a context where the usual assumption is that functions are built into the program or environment.
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