| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| can a foreign key have duplicate values | 1.87 | 0.8 | 9989 | 84 |
| does foreign key allow duplicate values | 0.84 | 0.1 | 6068 | 15 |
| can foreign key contain duplicate values | 1.31 | 0.2 | 5832 | 11 |
| foreign key allow duplicate values | 0.27 | 0.9 | 3174 | 94 |
| foreign key has duplicate values | 1.08 | 0.1 | 730 | 9 |
| can foreign key be null and duplicate | 0.3 | 0.2 | 4543 | 13 |
| duplicate foreign key constraint | 0.24 | 0.3 | 8551 | 43 |
| can unique key be foreign key | 1.63 | 1 | 1410 | 76 |
| foreign key vs unique key | 1.3 | 0.7 | 7359 | 29 |
| duplicate foreign key constraint name fk | 0.3 | 0.4 | 274 | 87 |
| foreign key doesn't have a default value | 1.86 | 1 | 4031 | 37 |
| duplicate foreign key constraint name fk1 | 0.72 | 0.9 | 5708 | 52 |
| difference between foreign key and unique key | 0.61 | 0.2 | 6469 | 57 |
| on duplicate key values | 0.65 | 0.5 | 3004 | 94 |
| duplicate foreign key constraint name id | 0.92 | 0.4 | 6053 | 82 |
| foreign key is unique or not | 0.8 | 0.6 | 1637 | 81 |
| can there be multiple foreign keys | 0.34 | 0.4 | 4736 | 36 |
