Every available Microsoft Dynamics NAV data type is mapped to an appropriate SQL Server data type. The following table shows which SQL Server data type is used for the corresponding Microsoft Dynamics NAV data type.

Microsoft Dynamics NAV Data Type SQL Server Data Type

BigInteger

BIGINT

BLOB

IMAGE

Boolean

TINYINT

Code(n)

NVARCHAR(n), INTEGER, SQL_VARIANT

Date

DATETIME

DateFormula

VARCHAR(32)

Decimal

DECIMAL(38,20)

Duration

BIGINT

GUID

UNIQUEIDENTIFIER

Integer

INTEGER

Option

INTEGER

RecordID

VARBINARY(n)

TableFilter

VARBINARY(252)

Text(n)

NVARCHAR(n)

Time

DATETIME

Each of the SQL Server data types is created as NOT NULL except the IMAGE type, which allows NULL.