FieldType Element for EventClass/Schema/Field (ADF)
Specifies the SQL Server data type of the event field.
语法
<EventClasses>
<EventClass>
...
<Schema>
<Field>
...
<FieldType>
Element Characteristics
| Characteristic | Description |
|---|---|
Data type |
string, between 1 and 255 characters in length. |
Default value |
None. |
Occurrence |
Required once per Field element. |
Updates |
Can be modified, but not added or deleted, when updating the application. |
Element Relationships
| Relationship | Elements |
|---|---|
Parent element |
|
Child elements |
None. |
备注
FieldType values must conform to SQL Server data types. The following data types are supported by Notification Services:
bigint |
float |
real |
tinyint |
binary |
int |
smalldatetime |
uniqueidentifier |
bit |
money |
smallint |
varbinary |
char |
nchar |
smallmoney |
varchar |
datetime |
nvarchar |
sql_variant |
xml |
decimal |
numeric |
|
|
The text, ntext, and image data types are not supported because they cannot be used as values for parameters and variables in stored procedures. In addition, the timestamp data type is not supported. For more information about SQL Server data types, see 数据类型（数据库引擎）.
If using the xml data type with the XSLT content formatter, the content formatter might attempt to transform the XML data. To preserve the XML markup, set the content formatter's DisableEscaping argument to false.
.gif "ms145291.note(zh-cn,SQL.90).gif") 重要提示： |
|---|
| If you update a FieldType element, updating the application deletes and re-creates the event class to which it corresponds. This includes dropping and re-creating the SQL Server tables and indexes used by this event class. Any data existing in the original event class tables is permanently deleted. |
示例
The following example shows how to specify a event field data type of char(10), which is 10 bytes of non-Unicode character data.
<FieldType>char(10)</FieldType>
请参阅
参考
Application Definition File Reference