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Questions - junction-table

How can I have my composite primar key in a junction table using sequelize?

I have a composite primary key in my table Foo, and a single primary key in Bar. When I make a junction using the belongsToMany syntax, only one primary key component shows up in the junction table (t...
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Vanthys

mysql

node.js

sequelize.js

composite-primary-key

junction-table

Votes: 0

Answers: 1

Latest Answer

Sequelize does not support composite primary and foreign keys so you need to make id in Foo as the only unique key (ideally should be generated by DB) and so you will have a one foreign key column in ...
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Anatoly

MySQL handling many to many relations from data in csv file

I have a single CSV file with following columns: ActorName, Address, City, Movies ActorName column has duplicate entries because there are multiple movies that actor acted in. Eg. Actor Clint Eastwood...
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Yash

mysql

junction-table

Votes: 0

Answers: 1

Latest Answer

An example. Loading the data into temporary table then copying into working tables. CREATE PROCEDURE process_data () BEGIN -- load data from CSV file into temptable LOAD DATA INFILE 'x:/folder/new_da...
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Akina

How to Select all possible distinct related "two-ways" values for any given ID from a junction table?

table TBL_IN "IN Document details table" IID IDate ISubject I-225 I-300 I-410 table TBL_OUT "OUT Document details table" OID ODate OSubject O-20 O...
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lehyamaged

sql

oracle

ms-access

plsql

junction-table

Votes: 0

Answers: 1

Latest Answer

In Oracle, you appear to want a hierarchical query that finds all the distinct connections via either IID or OID and then want to aggregate: SELECT id, LISTAGG(value, ',') WITHIN GROUP (ORDER B...
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MT0

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