该sql 可以正常执行,但是当把 sql 放到 jdbcTemplate 中执行时报一下错误: Causedby: com.microsoft.sqlserver.jdbc.SQLServerException: The"variant"datatypeisnot supported. 原因是 sql 语句 select 后面有sql_variant类型的属性,在 JDBC 中不支持它。使用sp_columns命令最终查出sys.extended_properties表的value属性...
不能直接对sql_variant进行运算,例如,在对sql_variant 类型进行算术/字符操作时,必须显式将其转换成基础数据类型,然后才能对其进行运算。 When handling thesql_variant data type, SQL Server supports implicit conversions of objects with other data types to thesql_variant type. However, SQL Server does not...
了解如何使用 SQLXML 4.0 中的 xsd:type 和 sql:datatype 属性来控制 XSD 数据类型和 SQL Server 数据类型之间的映射。
sql_variant 是变长的数据类型,包含两部分信息:基础类型和Value,最多存储8000Byte的数据。 sql_variant includes both the base type information and the base type value. The maximum length of the actual base type value is 8,000 bytes. declare @sv sql_variant set @sv=REPLICATE('abcd',2001) --ma...
Sql_variant data type For information about sql_variant data type, see Using Sql_variant data type. Spatial data types For information about spatial data types, see Using Spatial Datatypes. See also Understanding the JDBC driver data typesFeed...
sql_variant can be used in columns, parameters, variables, and the return values of user-defined functions. sql_variant enables these database objects to support values of other data types. A column of type sql_variant may contain rows of different data types. For example, a column defined ...
com.microsoft.sqlserver.jdbc.SQLServerException: The "variant" data type is not supported. 因此,在使用sql_variant类型的字段的时候需要转换一下,可以使用CONVERT函数进行转换,但是如果转换不对,会导致乱码问题: 工作中遇到需要获取sys.extended_properties表的value字段数据(sql_variant),该字段为字段的备注信息。
The sql_variant data type allows a single column, parameter, or variable to store data values of different data types like int and nchar. However, each instance of a sql_variant column records the data value and additional metadata. The metadata includes the base data type, maximum size, sca...
Data typeDescription sql_variantStores up to 8,000 bytes of data of various data types, except text, ntext, and timestamp uniqueidentifierStores a globally unique identifier (GUID) xmlStores XML formatted data. Maximum 2GB cursorStores a reference to a cursor used for database operations ...
Conversion from the sql_variant data type to the large-value data types is an explicit conversion. Large-value data types can't be converted to the sql_variant data type.For more information about conversion from the xml data type, see Create Instances of XML Data.xml...