Update data many-to-many in typeorm express
i tried both .save and .update but it cause an error, –in the case of .save it return error: the value of a duplicate key breaks the unique constraint –in .update case it return error: the “…
Tag: many-to-many
Which collections are supported by Hibernate @ManyToMany annotation
I used @ManyToMany annotation on a Set and it worked fine. @ManyToMany @JoinTable(name=”stud_course_map”,joinColumns={@JoinColumn(name=”stud_id “)}, inverseJoinColumns={@JoinColumn(name=”course_id”)}…
find many to many with no relation
I have an items table, a tags table and a reletations table. I need to find untagged items. With this (working) query I find the tags number for each item: SELECT i.id, i.text, COUNT( ti.item ) AS …