Can a field reference two different tables?
10831
Join table depending on value of column in main table
133610
How to access fields from the inner join
37071
SOQL: Comparing two custom relationship fields in a nested query
95102
Concatenate multiple rows in one field in Access?
19922
How to merge two databases, with same data, but with different PKs, without duplicated fields?
149745
Simulate FULL OUTER JOIN with Access on more than two tables
82726
Foreign Key (references) constraint on PostgreSQL Foreign Data Wrapper?
44806
Error 1052 Field is Ambiguous using Inner Join Function
23716
Conditional JOIN different tables
113315
Biber and Biblatex: reference to multiple subentries
134456
Does specifying a foreign key make it an index?
45017
Is it possible to move a record from one table to another using a single SQL statement?
24398
SqlServer: can one table's PK be the FK of two table's?
100388
Getting list of tables, and fields in each, in a database
133288
Using Foreign Key and References for ON DELETE CASCADE in mysql
62921
Check constraint references another column in same table
105054
Error: Compile Error: A non foreign key field cannot be referenced in a path expression