Merge two databases, without duplicates, with FKs references
19922
How to merge two databases, with same data, but with different PKs, without duplicated fields?
143978
Proposal to merge tags [existdb] and [exist]
38371
How to UPSERT (MERGE, INSERT ... ON DUPLICATE UPDATE) in PostgreSQL?
95344
How do I insert a row which contains a foreign key?
17399
Copy/duplicate database without using mysqldump
488
Copying (hundreds of) tables from one server to another (with SSMS)
14337
PHP Mysql joins across databases
85789
Not using foreign key constraints in real practice. Is it OK?
122238
Example where schema are better than multiple databases
112312
Create unique sequence per set of rows sharing the same foreign key value
110393
How to avoid duplicates while updating a MySQL database?
7693
How do I add a foreign key to an existing SQLite table?
116239
Does SQL Server Offer Anything Like MySQL's ON DUPLICATE KEY UPDATE
37980
database.yml &references not working
64483
Inserting into related tables
43036
How to organically merge nested associations?
8924
How do I see all foreign keys to a table or column?