Basic Concepts

In general, Date&Time data is no different from other data types in that there always has to exist an appropriate database column, on this column an object type attribute is defined. The attribute is then assigned controls in views and a formatter is selected to determine the way it is going to be displayed.

The object type attribute level is where specific behaviour (such as time zone dependency or formatters available for the attribute control) is determined.

Used Terms:

Column Type	Database level Type of database column. Set at database creation. Possible values vary according to host Database Management System.
Attribute Type	Application level Type of attribute used for the column type. Set in the ObjectType Customizer. Available values are determined by underlying Column Type.
Formatter	Application level Format used in the corresponding control on the Object Type View. Set in the View Customizer. Available values are determined by underlying Attribute Type.

In This Chapter

Date&Time Data

Time Zone Dependency

Time Zone Implementation in Valuemation