Table qti_item_variable
Legend:
Primary key columns
Columns with indexes
Implied relationships
Excluded column relationships
< n > number of related tables
 
Column Type Size Nulls Auto Default Children Parents Comments
id int8 19
qti_item_variable_value.qti_item_variable_id fk1f3e7981edfda12 R
base_type varchar 50  √  null
cardinality varchar 50
choice_sequence varchar 1024  √  null
identifier varchar 255
normal_maximum float8 17,17  √  null
normal_minimum float8 17,17  √  null
variable_type int4 10
result_id int8 19
qti_abstract_result.id fk4a063c4fe946f1b4 R
varindex int4 10
Indexes:
Column(s) Type Sort Constraint Name
id Primary key Asc qti_item_variable_pkey
identifier Performance Asc qtiitemvaridentidx
result_id Performance Asc qtiitemvarresultidx
variable_type Performance Asc qtiitemvarvartypeidx

Close relationships  within of separation: