SQLite composite key for a table between two tables - sqlite

Question

I am trying to Connect Three tables. Two of them have Primary Keys which the Third is supposed to link to. I need this inbetween as it is linked to a fourth (but this Works fine). The code I have written is as follows:
CREATE TABLE CUSTOMERS(
CUSTOMER_ID INT(10) NOT NULL,
SURNAME CHAR(50) NOT NULL,
NAME CHAR(50) NOT NULL,
PRIMARY KEY (CUSTOMER_ID)
);
CREATE TABLE WORKSHOP(
WORKSHOP_ID INT(10) NOT NULL,
NAME CHAR(100) NOT NULL,
CHAIN_NAME CHAR(100),
CHAIN_ID INT(10),
CONTRACT_WORKSHOP CHAR(5) NOT NULL,
PRIMARY KEY (WORKSHOP_ID, CHAIN_ID)
);
CREATE TABLE CAR_DAMAGE(
DAMAGE_ID INT(10) NOT NULL,
CUSTOMER_ID INT(10) NOT NULL,
DATE INT(20) NOT NULL,
PLACE CHAR(128) NOT NULL,
WORKSHOP_ID INT(10) NOT NULL,
PRIMARY KEY (DAMAGE_ID, CUSTOMER_ID, WORKSHOP_ID, DATE, PLACE),
FOREIGN KEY (CUSTOMER_ID) REFERENCES CUSTOMERS (CUSTOMER_ID),
FOREIGN KEY (WORKSHOP_ID) REFERENCES WORKSHOP (WORKSHOP_ID)
);
INSERT INTO CUSTOMERS VALUES (1, "OLSEN", "TROND");
INSERT INTO CUSTOMERS VALUES (2, "JOHNSEN", "FELIX");
INSERT INTO CUSTOMERS VALUES (3, "SVINDAL", "AKSEL");
INSERT INTO CUSTOMERS VALUES (4, "BJORGEN", "MARIT");
INSERT INTO CUSTOMERS VALUES (5, "SVENDSON", "LISA");
INSERT INTO WORKSHOP VALUES (1, "BERTEL", "MOLLER", 1, "YES");
INSERT INTO WORKSHOP VALUES (2, "OLOF", "OLOF AUTO", 3, "NO");
INSERT INTO WORKSHOP VALUES (3, "J-AUTO", "MOLLER", 1, "YES");
INSERT INTO WORKSHOP VALUES (4, "SPEED", "BIRGER N. HAUG", 2, "YES");
INSERT INTO WORKSHOP VALUES (5, "RELAX AUTO", "MOLLER", 1, "YES");
INSERT INTO CAR_DAMAGE VALUES (1, 1, 10102008, "HELLERUD", 1);
INSERT INTO CAR_DAMAGE VALUES (2, 2, 14032015, "JAR", 2);
INSERT INTO CAR_DAMAGE VALUES (3, 3, 24052016, "LOMMEDALEN", 3);
INSERT INTO CAR_DAMAGE VALUES (4, 4, 31102017, "FLAKTVEIT", 4);
INSERT INTO CAR_DAMAGE VALUES (5, 5, 08062016, "STOCKHOLM", 5);
However, the problem occur as I get the error "foriegn key mismatch - CAR_DAMAGE referencing WORKSHOP.
I am using SQLite as I am forced to use it, given by my University.

Answer 1

Table WORKSHOP has a composite primary key (WORKSHOP_ID, CHAIN_ID). Any foreign key referencing that table must be a composite foreign key, consisting of the same two fields. Hence, you would need to add CHAIN_ID to table WORKSHOP and change your foreign key declaration to something like:
FOREIGN KEY (WORKSHOP_ID, CHAIN_ID) REFERENCES WORKSHOP (WORKSHOP_ID, CHAIN_ID)
[More generally, your primary keys seem, based on the information given, more complex than they need to be: why not just have WORKSHOP_ID as PK of WORKSHOP and DAMAGE_ID as PK of CAR_DAMAGE? But maybe you have good reasons.]

Answer 2

Thank you. This Method worked. Hence, when I proceeded, a New problem occured. The table CAR_DAMAGE is linked to a fourth table (Called DAMAGE_INFORMATION), With the code:
CREATE TABLE DAMAGE_INFORMATION(
DAMAGE_ID INT(10) NOT NULL,
DAMAGE_TYPE CHAR(100) NOT NULL,
DAMAGE_SIZE CHAR(50) NOT NULL,
SPEND INT(10) NOT NULL,
FOREIGN KEY (DAMAGE_ID) REFERENCES CAR_DAMAGE (DAMAGE_ID)
);
And I receive the same error as earlier, i.e. Foreign key mismatch "DAMAGE_INFORMATION" referencing "CAR_DAMAGE".
Is it not allowed to make a combination of 3 tables to 1, With different primary keys? The primary key of CAR_DAMAGE is:
PRIMARY KEY (DAMAGE_KEY, CUSTOMER_ID, WORKSHOP_ID)