RAW is a variable-lengthdata type like VARCHAR2, except that Oracle Net (whichconnects client software to a database or one database to another) and theOracle import and export utilities do not perform character conversion whentransmitting RAW or LONG RAW data. In contrast, Oracle Net and the...
注意: LONG 和 LONG RAW在Oracle新版已不推荐使用(使用BLOB替代),只是为了向后兼容而保留着。 本文着重介绍:RAW/CLOB/BLOB 1、RAW类型 1.1 介绍 You use the RAW datatype to store binary data or byte strings. For example, a RAW variable might store a sequence of graphics characters or a digitized ...
RAWisa variable-length datatype like the VARCHAR2 character datatype, except Oracle Net Services (which connects user sessions to the instance) and the Import and Export utilitiesdonot perform character conversion when transmitting RAW or LONG RAW data. In contrast, Oracle Net Services and Import/...
oracle中用于保存位串的数据类型是RAW，LONG RAW(推荐使用BLOB)。RAW，类似于CHAR，声明方式RAW(L)，L为长度，以字节为单位，作为数据库列最大2000，作为变量最大32767字节。LONG RAW，类似于LONG，作为数据库列最大存储2G字节的数据，作为变量最大32760字节 RAW类型的好处就是：在网络中的计算机之间传...
Oracle数据字典里面本身就有很多地方用到这个数据类型,如v$process的addr字段等。 这是一个什么样的类型?看了下资料说是用于存储二进制格式的数据的,但是这样的存储有什么好处呢? google了好多下,有段说明感觉比较明白易懂: 在网络中的计算机之间传输 RAW 数据时,或者使用 Oracle 实用程序将 RAW 数据从一个 数据库...
Creates a new RAW from an Object in the manner of the RAW(Object) constructor in versions of Oracle JDBC 9.2 and earlier. java.lang.StringstringValue() Convert this data object into a String. java.lang.ObjecttoJdbc() Convert this data object into its default Java object type. ...
oracle.sql Class RAW java.lang.Object | +--oracle.sql.Datum | +--oracle.sql.RAW public class RAW extends DatumThe RAW class is a representation of the Oracle RAW datatype. It is intended to be immutable. The user should not try to change its contents once it is constructed. ...
Oracle mode) Introduction to SQL Pseudo columns Basic elements Built-in data types Overview Character data types Numeric data types Datetime and interval data types RAW data type Large object data types Rowid data types User-defined data types Any types JSON data types XML data types Data type ...
public int hashCode() Obtain the hashcode for this object. Overrides: hashCode in class Object Returns: an integer hashcode toString public String toString() Format this object's data as a human-readable string. Overrides: toString in class Object Returns: a string description of this objectSkip...
=3;Ocom.Parametersemp_ic_mac.Value=setraw(tbicmac.Text);Ocom.ExecuteNonQuery();/*由与有字段long和blob一起,所以不能在一个insert语句中进行插入,单独insert是成功的OracleConnectionOcon=newOracleConnection(userid=cmes;datasource=mes;password=cmes);Ocon.Open();OracleCommandOcom=newOracleCommand(in...