udf

udf

美 　英

• 網絡用戶定義函數(user-defined function)；用戶自定義函數(User Defined Functions)；用戶定義的函數

例句

Plain XQuery does not allow you to call SQL user defined functions (UDFs) or external UDFs written in C or Java.

普通XQuery不允許您調用SQL用戶定義的函數（UDF）或者用C語言或Java編寫的外部UDF。

Please note that this function utilizes BIT_OR UDF we wrote to operate on bit-like data type parameters.

注意，該函數使用了我們編寫的BIT_ORUDF對類似于位數據類型的參數進行運算。

At this point, I therefore introduce a user defined function (UDF).

這里，我引入了一個用戶定義函數（UDF）。

The various external Java routines (UDFs and stored procedures) are in separate threads of that JVM.

不同的外部Java例程（UDF或存儲過程）處于JVM的獨立線程中。

If the UDF is performance-critical, then creating it as an external UDF in DB2 would make it slow.

如果UDF的性能很重要，在DB2中作為外部UDF創建它會降低性能。

UDFs are widely used in many IT organizations to encapsulate critical business logic and simplify application development requirements.

UDF在許多IT組織內都得到廣泛應用，用于封裝關鍵業務邏輯和簡化應用程序開發需求。

Can be the object identifier of a procedure, view, indexed, view, or UDF.

可以是過程、視圖、索引視圖或UDF的對象標識符。

Java modules can be converted into SQL extensions known as user-defined functions (UDFs).

可以將Java模塊轉換成稱為用戶定義的函數（UDF）的SQL擴展。

File name: The name of the file used by the UDF for writing the script.

文件名：由UDF用于編寫腳本的文件的名稱。

The UDF can be used to order query results in a culturally sensitive manner.

這個UDF可以用于以文化敏感的方式對查詢結果進行排序。

Or in other words, before the first call is made to the UDF an object of the class is created and kept until after the last call.

或者，換句話說，在第一次調用UDF之前，就創建該類的一個對象，并且一直保留到最后一次調用這個UDF之后。

For data integrity, by convention, unfenced SPs and UDFs should already be thread-safe, but this cannot be enforced.

按照慣例，為確保數據完整性，非隔離SP和UDF應該已經是線程安全的，但是，這不是強制性的。

When a UDF receives a ROW as argument, it can find out the number of columns that are defined, their names, their types and their content.

當一個UDF接收一個ROW參數時，它可以查明已定義的列數、列名、列類型、以及它們的內容。

To resolve the problem, run UDF in an unfenced mode or reduce database shared memory set to no more than 5 segments.

要解決這個問題，可以在unfenced模式下運行UDF，或者將數據庫共享內存減少至不多于5個段。

The stored procedure calls the UDF with different parameters, so you can follow different execution paths through the UDF.

該存儲過程用不同的參數調用該UDF，以便可以沿不同的執行路徑通過該UDF。

The name of the object in the subscription database if the article is a schema-only article, such as stored procedure, view, or UDF.

如果項目是純架構項目（如存儲過程、視圖或UDF），則為訂閱數據庫中的對象名稱。

A brief word on UDF: UDF means being able to drop files directly onto the disk.

對UDF的一點簡單說明：UDF意味著能夠直接將文件放入盤。

Note that when the UDF has been compiled in this manner, it depends on ICU being fully installed on any machine where the UDF will be run.

注意，如果以這種方式編譯這個UDF，那么在運行它的任何機器上必須完整地安裝ICU。

User defined feature(UDF) and singular feature exchange is the difficult technical point of feature data exchange.

用戶自定義特征（UDF）和奇異特征的交換則是特征數據交換的技術難點之一。

Running a non-thread-safe SP or UDF in a multi-threaded process could cause unpredictable problems.

在一個多線程的進程中運行一個非線程安全的SP或UDF會導致不可預測的問題。

This article also offers a set of UDFs that perform bitwise operations between integer arguments.

本文還提供了一組在整型變量之間執行逐位運算的UDF。

Step through the UDF until you exit back to the stored procedure, and continue.

逐句通過該UDF，直到退出該函數回到存儲過程，然后繼續調試。

Tables, views, indices, RI constraints, user-defined functions (UDFs), and some procedures can be migrated by this tool.

表、視圖、索引、RI約束、用戶定義的函數（UDF）以及一些過程都可以通過此工具遷移。

Applicable to merge stored procedures, views, and user-defined function (UDF) schema articles only.

只適用于合并存儲過程、視圖和用戶定義函數（UDF）架構項目。

Inline UDF's can be thought of as views that take parameters and can be used in JOINs and other Rowset operations.

可以把內聯自定義函數想象成視圖，它接受參數，而且可用于JOIN和其他行集操作。

UDFs encourage code reuse, therefore increasing productivity of application developers.

UDF鼓勵代碼重用，這樣可以提高應用程序開發人員的生產率。

The quality of the UDF and procedure migrations depend on the complexity of the source code.

UDF和過程的遷移質量依賴于源代碼的復雜性。

UDF and singular feature exchange among heterogeneous CAD systems are researched in this paper.

本文對異構CAD系統之間的用戶自定義特征和奇異特征交換進行研究。

Whenever a UDF is introduced into a query, it can hurt the performance of the query.

當在查詢中引入UDF時，它會損害查詢的性能。

The getAggregateResult UDF (set in italics) needs to decode the binary string and access the correct aggregation object.

getAggregateResultUDF（設置為斜體）需要對二進制串解碼，然后訪問正確的聚集對象。

Applicable to merge stored procedures, views, and UDF schema articles only.

只適用于合并存儲過程、視圖和UDF架構項目。

The singleton provides us with the means to store another object that is used for the aggregation done in each UDF in the SQL statement.

單件為我們提供了一種可以將SQL語句中每一個UDF進行聚集計算時需要的數據存儲在另外的對象當中的方式。

This example uses an existing User Defined Function (UDF) named ufnGetStock in the AdventureWorks database.

此示例在AdventureWorks數據庫中使用一個現有的名為ufnGetStock的用戶定義函數（UDF）。

The UDF is independent of the collation specified when the database was created.

這個UDF不受創建數據庫時指定的排序次序的影響。

Developers who have written C-UDF or C Stored Procedures in DB2 have learned to check the SQLCA after each EXEC SQL statement in their code.

在DB2中編寫C-UDF或C存儲過程的開發人員已經學會在其代碼的每條EXECSQL語句之后檢查SQLCA。

This includes views, stored procedures, user-defined functions (UDFs), and triggers.

這其中包括視圖、存儲過程、用戶定義函數（UDF）和觸發器。

It also supports embedded SQL for Java (SQLJ), Java user-defined functions (UDFs), and Java stored procedures.

它還支持嵌入式SQLforJava（SQLJ）、Java用戶定義的函數（UDF）和Java存儲過程。

With the registration of the UDF I will also introduce a cycle into the management chain.

注冊了該UDF之后，我還將在管理鏈中引入一個循環。

In the first call to the UDF, we need to initialize the groupMap attribute and continue with the usual processing for the normal calls.

第一次調用UDF的時候，需要初始化groupMap屬性，然后再繼續正常調用過程中的一般性處理。

It is like using a view, but since a UDF can take input parameters, it is like creating the view "on the fly. "

這類似于使用視圖，但由于UDF可以采用輸入參數，因而更像是在“動態地”創建視圖。