list_levelDefinitions | R Documentation |
Add / List / Remove database operation functions for level definitions.
A level is a more general term for what is often referred to as a "tier".
It is more general in the sense that people usually
expect tiers to contain time information. Levels
can either contain time information if they are of the
type "EVENT" or of the type "SEGMENT" but are timeless
if they are of the type "ITEM". For more information
on the structural elements of an emuDB see vignette(emuDB)
.
Note that a level cannot be removed, if it contains instances of annotation items
or if it is linked to another level. Further note, renaming a level definition
can be done using rename_attributeDefinition
.
list_levelDefinitions(emuDBhandle)
emuDBhandle |
emuDB handle as returned by |
emuR::list_levelDefinitions
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