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 external file(up to 4GB) ROWID A base-64 n...
Datetime函数可操作 date (DATE), timestamp (TIMESTAMP, TIMESTAMP WITH TIME ZONE, TIMESTAMP WITH LOCAL TIME ZONE) 及 interval (INTERVAL DAY TO SECOND, INTERVAL YEAR TO MONTH) 类型的值。 1. Datetime Functions Designed for the DATE Data Type Function Description ADD_MONTHS Returnsthe datedplusnmo...
Oracle's Timestamp data types enhance the Date data type by including fractional seconds and time zone information. It's range is from January 1, 4712 BC to December 31, 9999 AD. Timestamps come in three different flavors: TIMESTAMP TIMESTAMP WITH TIME ZONE TIMESTAMP WITH LOCAL TIME ZONE ...
In Oracle, thedateformat and thetime zonefeatures include multiple data types, including:DATE,TIMESTAMP,TIMESTAMP WITH TIME ZONEandTIMESTAMP WITH LOCAL TIME ZONE. TheTIMESTAMPdata type is an extension of theDATEtype. Date format in Oracle can be represented either asliteralsor asnumeri...
Oracle Data Types(数据类型),Oracle数据类型,及与Jdbc规范的对应关系。大类Oracle数据类型Jdbc数据类型精度说明字符CHARCHAR2000字节(500字符) VARCHAR2VARCHAR4000字节(1000字符) CLOBCLOB4G字节 NCHARNCHAR2000字节(666字符) NVARCHAR2NVARCHAR4000字节(1333字符) NCLO
OracleDate構造は、データベースに格納されるか、またはデータベースから取得されるOracle DATEデータ型を表します。各OracleDateには、年、月、日、時、分、秒の情報が格納されます。クラスの継承System.ObjectSystem.ValueTypeOracle.DataAccess.Types.OracleDate宣言...
In this function, the expression is the value you want to convert, and the type_name is the data type you’re converting to. You can specify several types here, such as DATE or TIMESTAMP. For example: CAST('18-APR-2015'asDATE) ...
DATE System.DateTime GetDateTime INTERVAL DAY TO SECOND System.Timespan GetTimeSpan INTERVAL YEAR TO MONTH System.Int64 GetInt64 LONG System.String System.Char[] GetString GetChars LONG RAW System.Byte[] GetBytes NCHAR System.String System.Char[] GetString GetChars NCLOB Syste...
Oracle Database 11g added support for the number datatype SIMPLE_INTEGER. 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 ...
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...