RAD Studio for Microsoft .NET - Embarcadero Technologies

1.1 Developing Database Applications with RAD Studio for Microsoft .NET AdoDbx.NET Data Types
1.1.3 AdoDbx.NET Data Types
AdoDbx Client data types map to .NET logical types. Dependant upon the database, AdoDbx Client data types map to native
data types. Where applicable, AdoDbx Client provides:
• Consistent data type mapping across databases.
• Logical data types mapped to .NET native types.
AdoDbx and .NET Framework
The DataSet class within ADO.NET uses .NET Framework data types. AdoDbx Client data types logically map .NET data types
for supported databases. During designtime, you can use AdoDbx Client logical types, which will map to the appropriate native
type.
Data Types
DB2
The .NET Framework includes a wide range of logical data types. AdoDbx Client inherits logical data types, providing built-in
mappings to supported databases. AdoDbx Client supports logical data type mappings for DB2, InterBase, MS SQL, MSDE, and
Oracle.
AdoDbx Client supports the following DB2 type mappings.
DB2 Type Bdp Type BdpSubType System.Type
CHAR String stFixed String
VARCHAR String NA String
SMALLINT Int16 NA Int16
BIGINT Int64 NA Int64
INTEGER Int32 NA Int32
DOUBLE Double NA Double
FLOAT Float NA Single
REAL Float NA Single
DATE Date NA DateTime
TIME Time NA DateTime
TIMESTAMP Datetime NA DateTime
NUMERIC Decimal NA Decimal
DECIMAL Decimal NA Decimal
BLOB Blob stBinary Byte[]
CLOB Blob stMemo Char[]
InterBase
AdoDbx Client supports the following InterBase type mappings.
InterBase Type Bdp Type BdpSubType System.Type
CHAR String stFixed String
VARCHAR String NA String
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