Please note that all relationships with this element, and all its children will be deleted as well.
What does this mean?
Parent, Children and Cascade deletions
"Children" elements are elements that directly depend on another object (the "parent").
They only have sense in a certain context, and if the context to which they belong is removed, to mantain data meaning and integrity the application provides also the removal of them (now become "orphans").
Example
Take the case of a Travel and of the Events occurred during it.
In this example, deleting a Travel will leave all of its Events meaningless since, taken alone, they would have no context in which to place themselves, nor a way to reach them.
Consequently, the removal of a Travel also causes the elimination - cascading - of all Events that occurred in that Trip.
Important
Note that this operation is not limited to one level of relationship, but proceeds with children of deleted children and so on, until the entire database is freed from unnecessary data.
This lets the user remove all data about a Travel by simply deleting that Travel.
Fermo Carrara and Giovanni Antonio Soderini see the large number of barking dogs in Cairo, Carrara points out that the Arabs do not harm them, whereas the Turks do.
Text on source
Stimano a gran peccato ad ammazzare un gatto, ma ancora più un cane, et niuno li bastona. li lasciano vivi tutti doppo la cagna li ha partoriti et li partoriscono nelle pubbliche strade et niuno li molesta, che perciò li vede un'infinito numero de Cani mastinarsi, lordi, sporchi che stomacano; alla notte poi questi fanno la sua musica quando uno comincia a lattrare viene subito accompagnato da centenaia et rende non pocho fastidio perchiò che si usa.
English translation
Folios/Pages
f. 88r
Date
1674 06 circa
Observations on the events description
The dots on the map indicate the places where sound and music events were described. They don't represent travel stages.