Common data access exceptions.
-
class
Indicates a connection-related failure that might be intermittent in nature.
class
Data access exception thrown when a result was expected to have at least one row (or element)
but zero rows (or elements) were actually returned.
class
Indicates that an entity cannot be inserted into the database
because an entity with same unique identifier already exists in the database.
class
A mapping exception is one thrown if an issue exists at runtime or build time in the data mapping.
class
This exception is raised when execution of a repository method with a singular
return type finds multiple results.
class
Indicates a failure that is due to inconsistent state between the entity and the database.