create or replace type type_name as object ( v_name1 datatype[,v_name2 datatype,...], [member|static method1 spec,member|static method2 spec,...]); create or replace type body type_name as member|static method1
VN DATA_TYPEN [NOT NULL][:=DEFAULT_VALUE]); 1.2 VARRAY 数组是具有相同数据类型的一组成员的集合。每个成员都有一个唯一的下标,它取决于成员在数组中的位置。在PL/SQL中,数组数据类型是VARRAY(variable array,即可变数组)。 定义VARRAY数据类型的语法如下: TYPE VARRAY_NAMEIS VARRAY(SIZE) OF ELEMENT_TYPE...
Implements Array interface method Returns the SQL type name of the elements in the array designated by this Array object. If the elements are a built-in type, it returns the database-specific type name of the elements. If the elements are a user-defined type (UDT), this method returns ...
Arrays.An array data type is an ordered collection of values. In JSON, array values must be type string, number, object, array, Boolean, or null. Strings.In JSON, strings are enclosed in double quotation marks, can contain any Unicode character, and are commonly used to store and transmit...
for (OracleType c : OracleType.values()) System.out.println(c); Returns: an array containing the constants of this enum type, in the order they are declared valueOf public staticOracleTypevalueOf(java.lang.String name) Returns the enum constant of this type with the specified name. Th...
name- a String naming the type. (Not necessarily fully qualified) connection- a Connection to a database Throws: java.sql.SQLException- if the name does not name an array type. createDescriptor public staticArrayDescriptorcreateDescriptor(java.lang.String name, java.sql.Connection conn, boolean ...
1TYPE TYPE_VARCHARASTABLEOFVARCHAR2(200);23TYPE TYPE_TABLEASTABLEOFTYPE_VARCHAR; 3.java代码的实现 A。首先是connection的问题,connection必须是OracleConnection(java.sql包下的) B。必须给Array添加一种数据定义(oracle.sql.ArrayDescriptor) C。ARRAY必须是java.sql.Array ...
OracleLob可以是其中OracleType一种数据类型。 OracleType 数据类型说明 Blob包含最大大小为 4 GB (GB) 的二进制数据的 OracleBLOB数据类型。 它映射到Array类型的Byte。 Clob一种 OracleCLOB数据类型,包含基于服务器上默认字符集的字符数据,最大大小为 4 GB。 它映射到String。
data--data file name discard--discard file name discardmax--numberofdiscards toallow(Default all)skip--numberoflogical records toskip(Default0)load--numberoflogical records toload(Default all)errors--numberoferrors toallow(Default50)rows--numberofrowsinconventional path bind array or between direct...
표준 팩토리 메소드 createArrayOf가 지원되지 않는 이유는 무엇입니까? SQL 표준 배열 유형은 익명입니다. 즉, "foo 배열" 유형에는 이름이 없습니다. 요소 유형에만 이름이 지정됩니다...