1>.NUMBER类型细讲: Oracle number datatype 语法:NUMBER[(precision [, scale])] 简称:precision –> p scale –> s NUMBER(p, s) 范围: 1 <= p <=38, -84 <= s <= 127 保存数据范围:-1.0e-130 <= number value < 1.0e+126 保存在机器内部的范围: 1 ~ 22 bytes 有效为:从左边第一个不...
oracle的number类型是oracle的内置类型之一,是oracle的最基础数值数据类型。在9iR2及其以前的版本中只支持一种适合存储数值数据的固有数据类型,在10g以后,才出现了两种新的数值类型,即推出本地浮点数据类型(Native Floating-Point Data Types): BINARY_FLOAT(单精度32位)和BINARY_DOUBLE(双精度64位). 这些新数据类型都...
方法一:使用NUMBER类型 create or replace procedure Euler_Pi_Number is subtype My_Number is number; zero constant My_Number := 0.0; one constant My_Number := 1.0; two constant My_Number := 2.0; six constant My_Number := 6.0; toler constant My_Number := 0.00000000001; root_toler constant ...
NUMBER(p,s) Variable-length numeric data DATE Date and time values LONG Variable-length character data(up to 2G);Oracle推荐不使用此数据类型,推荐使用CLOB、BLOB CLOB Character data(up to 4GB) RAW and LONG RAW Raw binary data BLOB Binary data(up to 4GB) BFILE Binary data stored in an exter...
oracle的number类型是oracle的内置类型之一,是oracle的最基础数值数据类型。在9iR2及其以前的版本中只支持一种适合存储数值 数据的固有数据类型,在10g以后,才出现了两种新的数值类型,即推出本地浮点数据类型(Native Floating-Point Data Types): BINARY_FLOAT(单精度32位)和BINARY_DOUBLE(双精度64位). 这些新数据类型...
数字数据类型存储固定的和浮点型数字。实际上任何量级的数字都可以被存储,可以在不同的运行oracle database的操作系统上相互移植,最大精度可以到到38位。 下面的数字可以被存储在一个NUMBER的字段中: 1 x 10-130to9.99...9 x 10125范围的正数,最大精度可以到达38位 ...
oracle的number类型是oracle的内置类型之一，是oracle的最基础数值数据类型。在9iR2及其以前的版本中只支持一种适合存储数值数据的固有数据类型，在10g以后，才出现了两种新的数值类型，即推出本地浮点数据类型(Native Floating-Point Data Types): BINARY_FLOAT(单精度32位)和BINARY_DOUBLE(双精度64位). ...
java.lang.Object oracle.sql.Datum oracle.sql.NUMBERAll Implemented Interfaces: java.io.Serializablepublic class NUMBER extends DatumNUMBER ClassThe NUMBER class provides converisons between the Oracle Number (lnxnum_t) data type and Java types byte[], byte, short, integer, long, float, double,...
NUMBER shares same value as NUMERIC as it is synonym defined for convenience when using the oracle.sql.NUMBER type. static intNUMERIC static intOPAQUE static intOTHER OTHER indicates that the SQL type is database specific and gets mapped to a Java object which can be accessed via getObject and...
The following shows the syntax of theINTERVAL DAY TO SECONDdata type: INTERVAL DAY [(day_precision)] TO SECOND [(fractional_seconds_precision)]Code language:SQL (Structured Query Language)(sql) In this syntax: day_precisionis the number of digits in theDAYfield. It ranges from 0 to 9. By...