Adaptive Server provides several system datatypes and the
user-defined datatypes timestamp, sysname,
and longsysname. Table 1-1 lists the categories of Adaptive Server
datatypes. Each category is described in a section of this chapter.
Table 1-1: Datatype categories
Category
|
Used for
|
|---|
Exact numeric datatypes
|
Numeric values (both integers and numbers
with a decimal portion) that must be represented exactly
|
Approximate numeric datatypes
|
Numeric data that can tolerate rounding
during arithmetic operations
|
Money datatypes
|
Monetary data
|
Timestamp datatype
|
Tables that are browsed in Client-Library™ applications
|
Date and time datatypes
|
Date and time information
|
Character datatypes
|
Strings consisting of letters, numbers,
and symbols
|
Binary datatypes
|
Raw binary data, such as pictures, in
a hexadecimal-like notation
|
bit datatype
|
True/false and yes/no
type data
|
sysname and longsysname datatypes
|
System tables
|
text, image, and unitext datatypes
|
Printable characters or hexadecimal-like
data that requires more than the maximum column size provided by
your server’s logical page size.
|
Abstract datatypes
|
Adaptive Server supports abstract datatypes
through Java classes. See Java in Adaptive Server Enterprise for
more information.
|
User-defined datatypes
|
Defining objects that inherit the rules,
default, null type, IDENTITY property, and base datatype of the
datatypes listed in this table. text undergoes character-set
conversion if client is using a different character set, image does not.
|
