Oracle Schema Objects Oracle Data Types 数据类型 Data Type Description NUMBER(P,S) Number value having a maximum number of digits p, with a digits to the
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 Data Types(数据类型) 对于有些官方不建议使用的数据类型(如LONG,LONG RAW等)此处不在说明。
Date Datatype As with the NUMERIC datatype, Oracle stores all dates and times in a standard internal format. The standard Oracle date format for input takes the form of DD-MON-YY HH:MI:SS, where DD represents up to two digits for the day of the month, MON is a three-character abbrev...
We can usedump functionto inspect how data is stored. Sample outputTyp=96 Len=5: 230,177,137,49,32 Typ=96 represent data type isChar Len=5 represent data is stored by 5 bytes '230,177,137,49,32' represent the actual data DROPTABLEzz_char;CREATETABLEzz_char(char_b_1CHAR(5BYTE),...
Object types XML types Varrays Nested tables Columns that use REF The DATE Data Type Dates in SQL Server range from 1753 A.D. to 9999 A.D., whereas dates in Oracle range from 4712 B.C. to 4712 A.D. If a column of type DATE contains values that are out of range for SQL Server...
ANYDATA has a set of static functions that allow you to create an ANYDATA type by explicitly casting an argument and returning it as an ANYDATA data type value: ConvertNumber(num IN NUMBER) ConvertDate(dat IN DATE) ConvertChar(c IN CHAR) ...
// C# using System; using Oracle.DataAccess.Types; using Oracle.DataAccess.Client; class OracleDateSample { static void Main(string[] args) { // Initialize the dates to the lower and upper boundaries OracleDate date1 = OracleDate.MinValue; OracleDate date2 = OracleDate.MaxValue; Oracle...
8.7.4 Oracle Date, Number, and Monetary Formats in the GDK The GDK Java API provides formatting classes that support date, number, and monetary formats using Oracle conventions for Java applications in the oracle.i18n.text package. New locale formats introduced in Oracle Database 10g, such ...
DATE 支持 支持 支持 TIMESTAMP 支持 支持 支持 TIMESTAMP WITH TIME ZONE 支持 支持 不支持 TIMESTAMP WITH LOCAL TIME ZONE 支持 支持 不支持 CLOB 支持 支持 支持 BLOB 支持 支持 支持 RAW 支持 支持 支持 ROWID 不支持 不支持 支持 UROWID 不支持 不支持 支持 FLOAT 支持 支持 支持 INTERVAL DAY TO SECO...