Page History
Panel | |||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||||||||||||
ISNULLThis function checks whether a value is unknown. Syntax
Input
Return type
Examples Suppose the following data model.
Include Page | _nav_BackToTop |
|
Panel | |||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||||||||||||||||||||||||||||||||
ISUNKNOWNThis function replaces a value if that value is unknown. Syntax
Inputs
Return type
Examples Suppose the following data model.
Include Page | _nav_BackToTop | _nav_BackToTop |
|
Panel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||
IFUNKNOWNAn alternative notation of the ISUNKOWN function, which increases readability especially for long expressions. This function replaces a value if that value is unknown. The IFUNKNOWN function takes precendence precedence over any other binary operator (except for the "NOT" operator). Syntax
Inputs
Return type
Examples Suppose the following data model.
Include Page | | _nav_BackToTop | _nav_BackToTop |
Back to top |
---|
Panel | |||||
---|---|---|---|---|---|
| |||||
IS AUse this function to check the type of an instance. The function returns TRUE if the selected instance is of the specified entity. Syntax
Inputs
Return type
Examples Suppose a domain model in which there is a singleton entity If you want to determine the number of bedrooms is the residence:
If you want to determine the number of bathrooms is the residence:
Include Page | _nav_BackToTop | _nav_BackToTop
|
Panel | ||||||
---|---|---|---|---|---|---|
| ||||||
TYPE OFUse this function to determine the type of an instance. The function returns the name of the entity. Syntax
Input
Return type
Examples Suppose a domain model in which there is a singleton entity
Include Page | _nav_BackToTop | _nav_BackToTop |
|
Panel | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ISACTIVEUse this function to determine if an instance of a specific type is currently active.
Inputs
Return type
Examples Suppose the following data model.
Include Page | _nav_BackToTop | _nav_BackToTop |
|
Panel | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||
GUIDThis function is able to generate a globally unique identifier which can later be used to uniquely mark and recognize a desired element. The GUIDs are represented as 32 hexadecimal digits, displayed in five groups separated by hyphens, in the form 8-4-4-4-12 for a total of 36 characters. Syntax
Return type
Examples
Include Page | _nav_BackToTop |
|