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
Oracle Database provides a number of built-in data types as well as several categories for user-defined types that can be used as data types. The syntax of Oracle data types appears in the diagrams that follow. The text of this section is divided into the following sections: Oracle Built-...
VARCHAR2和VARCHAR数据类型 VARCHAR2数据类型存储存储可变长度的字符串。创建一张表,表里有个varchar2格式的行,你必须确定最大的字符串长度(bytes,或者character)1-4000.每一行,oracle database把每一行的数据存储成为可变大小的,除非长度超过字段的最大长度,超过字段的最大长度之后,oracle会返回error。使用varchar2和va...
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。
A constant that represents a category ofLOBdata types. See Also: Constant Field Values RAW_CATEGORY public static final intRAW_CATEGORY A constant that represents a category ofRAWdata types. See Also: Constant Field Values LONG_CATEGORY
(1, 0)Oracle data type to theboolEDM type. For example,Number(1,0), which is mapped toInt16by default, can be custom mapped to the .NETBoolor .NETBytetype. This example mapsNumber(3,0)tobyte, and sets the maximum precisions for theInt16, Int32,andInt64data types to 4, 9, ...
Use the latest technologies such as retrieval augmented generation (RAG) and enterprise-class LLMs with your own business data for more contextual and relevant results. Discover AI Vector Search Dev for Data Don't let limited data types or programming languages hold you back from innovation; simpl...
Oracle data types Summary:Learn how to use ADO.NET 1.1 to retrieve data from complex Oracle data types. (28 printed pages) Contents Introduction Any BFILE Interval LOB RAW REF CURSOR ROWID Timestamp UriType User Defined XmlType Conclusion ...
Oracle data types and Microsoft SQL Server data types do not always match exactly. Where possible, the matching data type is selected automatically when publishing an Oracle table. In cases that a single data type mapping is not clear, alternative data type mappings are provided. For information...
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