There is no automatic conversion to or from any structure data type 其他数据类型与任何结构数据类型之间不会进行任何自动转换。
Structure data types have no literal type character or identifier type character 结构数据类型没有文本类型字符或标识符类型字符。
The default value of a structure data type consists of the combination of the default values of each of its members 结构数据类型的默认值由它的每个成员的默认值组合而成。
Define and use a structure data type when you need to combine various data types into a single unit , or when none of the elementary data types serve your needs 当您需要将不同的数据类型组合为一个单元时,或者当所有基本数据类型都无法满足您的需求时,可以定义和使用结构数据类型。
3 . schemas for semistructured data differ , however , from those for relational or object - oriented data . therefore , typing system and schema formalisms for xml - based semistructured data are extensively studied , and the algorithms both for computing type classification with maximal fixpoints semantics and maximal simulation are proposed , respectively 三、对半结构数据的类型及模式的描述形式进行了研究,并分别给出了使用最大不动点语义计算半结构数据类型划分的算法思想和最大仿真( simulation )计算方法的思想。
结构: structure; composition; cons ...数据: data; record; information类型: type; mold; form; cutpascal数据类型: pascal data type表数据类型: table data type数据类型: bigintdatatypebigint; binarydatatypebinary; bitdatatypebit; chardatatypechar; cursordatatypecursor; data types; datetimedatatypedatetime; decimaldatatypedecimal; floatdatatypefloat; numeric data type; variant data ariant数据类型到: hdf eos位数据类型: bit data type表结构数据: list structured data结构数据: configuration data; data, structural; structural data; structured data结构数据项: structure data item; structured data item变量数据类型: data type of a variable标准数据类型: standard data type别名数据类型: alias data type布尔数据类型: boolean data type操作数据类型: operation data type抽象数据类型: abstract datatype; adts; adt,abstract data type初始数据类型: primary data type纯量数据类型: scalar data type导出数据类型: derived data type导电数据类型: derived data type递归数据类型: recursive data type定义数据类型: user-defined data type动态数据类型: dynamic data type动作数据类型: action data types