Foreign key references multiple tables sheet

May 19, 2016 · How to create Foreign Key Constraint on Multiple Columns in SQL Server - SQL Server Tutorial Part 67 ... you need to create second table dbo.Orders and create foreign key constraint by using ...

To create a relationship between two tables that have multiple columns defining the primary and foreign keys, first combine the values to create a single key column before creating the relationship. You can do this before you import the data, or by creating a calculated column in the Data Model using the Power Pivot add-in.

A foreign key is typically based on a set of one or more columns in a child table that references primary or unique key columns in a parent table. You can also define a foreign key relationship among two or more columns in the same table.

Aug 23, 2015 · Normally,For inserting data into multiple table using foreign key but without using foreign key we can also insert data into multiple table. Delete the table from the database ALTER TABLE t ADD column; Add a new column to the table ALTER TABLE t DROP COLUMN c ; Drop column c from the table CREATE TABLE t1(c1 SERIAL PRIMARY KEY, c2 INT, FOREIGN KEY (c2) REFERENCES t2(c2)); Set c2 column as a foreign key CREATE TABLE t(c1 INT, c1 INT, UNIQUE(c2,c3)); Make the values in c1 and c2 ...