IBM.Data.DB2Types Namespace

The IBM.Data.DB2Types namespace provides classes and structures that represent Db2® data types for the .NET Framework Data Provider.

The following table shows mappings between DB2Type data types, Db2 data types, Informix® data types, Microsoft .NET Framework types, and DB2Types classes and structures.

Table 1. Mappings between data types, classes and structures
Category DB2Types Classes and Structures DB2Type Data Type Db2 Data Type Informix Data Type .NET Data Type
Numeric DB2Int16 SmallInt SMALLINT BOOLEAN, SMALLINT Int16
DB2Int32 Integer INT INTEGER, INT, SERIAL Int32
DB2Int64 BigInt, BigSerial BIGINT BIGINT, BIGSERIAL, INT8, SERIAL8 Int64
DB2Real, DB2Real370 Real REAL REAL, SMALLFLOAT Single
DB2Double Double DOUBLE PRECISION DECIMAL (≤31), DOUBLE PRECISION Double
DB2Double Float FLOAT DECIMAL (32), FLOAT Double
DB2Decimal Decimal DECIMAL MONEY Decimal
DB2DecimalFloat DecimalFloat DECFLOAT(16|34)4   Decimal
DB2Decimal Numeric DECIMAL DECIMAL (≤31), NUMERIC Decimal
Date/Time DB2Date Date DATE DATETIME (date precision) Datetime
DB2Time Time TIME DATETIME (time precision) TimeSpan
DB2TimeStamp Timestamp TIMESTAMP DATETIME (time and date precision) DateTime
DB2TimeStampOffset TimestampWithTimeZone TIMESTAMP WITH TIME ZONE N/A DateTimeOffset
XML DB2Xml Xml2 XML   Byte[]
Character data DB2String Char CHAR CHAR String
DB2String VarChar VARCHAR VARCHAR String
DB2String LongVarChar1 LONG VARCHAR LVARCHAR String
Binary data DB2Binary Binary CHAR FOR BIT DATA   Byte[]
DB2Binary Binary3 BINARY   Byte[]
DB2Binary VarBinary3 VARBINARY   Byte[]
DB2Binary LongVarBinary1 LONG VARCHAR FOR BIT DATA   Byte[]
Graphic data DB2String Graphic GRAPHIC   String
DB2String VarGraphic VARGRAPHIC   String
DB2String LongVarGraphic1 LONG VARGRAPHIC   String
LOB data DB2Clob Clob CLOB CLOB, TEXT String
DB2Blob Blob BLOB BLOB, BYTE Byte[]
DB2Clob DbClob DBCLOB   String
Row ID DB2RowId RowId ROWID   Byte[]

Enumerations

Enumeration Description
public enumeration DB2RoundingMode Specify the rounding mode to use with DB2DecimalFloat objects.
1 These data types are not supported as parameters in DB2® .NET common language runtime routines.
2 A DB2ParameterClass.ParameterName property of the type DB2Type.Xml can accept variables of the following types: String, byte[], DB2Xml, and XmlReader.
3 These data types are applicable only to Db2 for z/OS® Version 9 and later releases and Db2 for IBM® i V6R1 and later releases.
4 This data type is only supported for Db2 for z/OS Version 9 and later releases and for Db2 Version 9.5 and later releases.