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本主題尚未接受評分 - 為這個主題評分

DROP XML SCHEMA COLLECTION (Transact-SQL)

SQL Server 2005

刪除整個 XML 結構描述集合及其所有的元件。

主題連結圖示 Transact-SQL 語法慣例

複製 

DROP XML SCHEMA COLLECTION [ relational_schema. ]sql_identifier
relational_schema

識別關聯式結構描述名稱。若未指定，則會假設使用預設的關聯式結構描述。

sql_identifier

這是您要卸除的 XML 結構描述集合名稱。

卸除 XML 結構描述集合是一項交易式作業。也就是說，當您卸除交易內的 XML 結構描述集合，然後再回復該交易時，不會卸除 XML 結構描述集合。

您不能卸除在使用中的 XML 結構描述集合。也就是說，下列幾種集合不能卸除：

  • 與任何 xml 類型參數或資料行相關聯的集合。
  • 在任何資料表條件約束中指定的集合。
  • 在結構描述繫結函數或預存程序中參考的集合。例如，下列函數會鎖定 XML 結構描述集合 MyCollection，因為該函數會指定 WITH SCHEMABINDING。如果移除它，XML SCHEMA COLLECTION 就沒有任何鎖定。
    複製 
    CREATE FUNCTION dbo.MyFunction()
RETURNS int
WITH SCHEMABINDING
AS
BEGIN
   ...
   DECLARE @x XML(MyCollection)
   ...
END

若要卸除 XML SCHEMA COLLECTION，則需要集合的 DROP 權限。

如需詳細資訊，請參閱＜XML 結構描述集合上的權限＞。

下列範例會顯示移除 XML 結構描述集合。

複製 
DROP XML SCHEMA COLLECTION ManuInstructionsSchemaCollection
GO
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