OpenEdge Data Management: DataServer for Microsoft SQL Server

Data types
The ABL DATETIME and DATETIME-TZ data types are compatible with datetime data types
supported by MS SQL Server. Table 2–8 provides details on compatibility:
Table 2–8: ABL datetime data types
ABL Data Type Definition
DATE ABL date DATE 1
DATETIME 3
DATETIME-TZ 5
Performing data type conversions
The DATETIME data type consists of
two parts, one an ABL date and
one an ABL time. The unit of time
is milliseconds from midnight.
MS SQL Server
compatible data type
SMALLDATETIME
DATETIME2 DATETIME2
DATETIMEOFFSET
DATE 4
TIME
SMALLDATETIME4 DATETIME2,4 DATETIME21,4 DATETIMEOFFSET4 1. Default data type mapping on an OpenEdge migration to the MS SQL Server DataServer when Map to MSS
Datetime Type check box is checked.
2. Default data type mapping on an OpenEdge migration to the MS SQL Server DataServer when the Map to MSS
Datetime Type check box is unchecked. NOTE: You should only uncheck this box when your target database is
MS SQL Server 2008 or later.
3. Compatible with MS SQL Servers 2000 and later.
4. Since the valid date range for OpenEdge date and datetime data types with a date component is wider than the range
available to MS SQL Server data types with a date component, it is recommended that a validation expressions be
applied to fields in the schema holder mapped to MS SQL Server datetime types with a narrower date range. This
would ensure that the client first blocked out-of-range dates before they were invalidated by server operations.
5. Compatible with MS SQL Server 2008 and later.
Variation of DATETIME data type
with time zone offset.
DATE 4
SMALLDATETIME 4
DATETIME 2,4
DATETIME2 4
DATETIMEOFFSET 1,4
Making changes between ABL and MS SQL Server data types will affect how the data is stored.
The following tables describe the effects of changing one data type to another.
2–23