I am using the following code in c# and want my result in xml file somewhere on C:\using System; using System.Data; using System.Data.SqlClient; using System.Xml;class ExecuteXmlReader { public static void Main() { SqlConnection mySqlConnection = new SqlConnection("server=ZAFAR-PC\SQLE...
sql_identifier 這是XML 結構描述集合的 SQL 識別碼。 運算式 這是字串常數或純量變數。 是varchar、varbinary、nvarchar或xml類型。 備註 您也可以利用ALTER XML SCHEMA COLLECTION將新命名空間加入集合中,或將新元件加入集合的現有命名空間中。 若要移除集合,請使用DROP XML SCHEMA COLLECTION (Transact-SQL)。
若要创建关系索引,请参阅 CREATE INDEX (Transact-SQL)。 有关如何创建空间索引的信息,请参阅 CREATE SPATIAL INDEX (Transact-SQL)。 Transact-SQL 语法约定 语法 syntaxsql 复制 --Create XML Index CREATE [ PRIMARY ] XML INDEX index_name ON ( xml_column_name ) [ USING XML INDEX xml_index_name...
sql_identifier 是XML 架构集合的 SQL 标识符。 表达式 字符串常量或标量变量。 为 varchar、varbinary、nvarchar 或 xml 类型。 注解 通过ALTER XML SCHEMA COLLECTION,还可以向集合中添加新命名空间或向集合的现有命名空间中添加新组件。 若要删除集合,请使用DROP XML SCHEMA COLLECTION (Transact SQL)。
Transact-SQL 語法慣例 語法 syntaxsql 複製 CREATE SELECTIVE XML INDEX index_name ON (xml_column_name) [WITH XMLNAMESPACES (<xmlnamespace_list>)] FOR (<promoted_node_path_list>) [WITH (<index_options>)] ::= { database_name.schema_name.table_name | schema_name.table_name | table...
To query, insert, delete, or update values in the XML column using xml data type methods, the same option must be set on the connection. If it isn't, the xml data type methods will fail. Note Information about an XML index can be found in catalog views. However, sp_helpindex isn't...
The libmysqlbnxml library provides an array of functions, which can be used to create XML output directly from MySQL using a single SQL query. This prevents having to convert a MySQL result to XML in a PHP script, Ruby script, etc. This improves performance and simplifies your code. ...
In the preceding sections, we explored the creation of an XML file using XmlTextWriter and manually generated Dataset. In this scenario, our focus is on generating an XML file from a database. To achieve this, we establish an SQL connection to the database, execute the SQL query, and ...
XMLType columns can be stored either in LOB or object-relational columns.Specify STORE AS OBJECT RELATIONAL if you want Oracle to store the XMLType data in object-relational columns. Storing data object relationally lets you define indexes on the relational columns and enhances query performance. ...
sql_variant text和ntext uniqueidentifier base_type 还可以是映射到这些系统数据类型之一的任何数据类型同义词。 精度 对于十进制或数字,精度是一个非负整数,指示可存储的小数位数的最大总数,同时位于小数点的左侧和右侧。 有关详细信息,请参阅decimal 和 numeric (Transact-SQL)。