All Answers Tagged With integrity
- Unique validation on 3 columns pivot table laravel
- symfony Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails
- SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'garden' cannot be null (SQL: insert into `legacies` (`garden`, `invoice`, `qty`, `grade`, `package`, `updated_at`, `created_at`) values (, , , , , 2023-06-18 12:10:34, 2023-06-18 12:10:34))
- what is integrity constraints
- integrity constraint violation: 1452 cannot add or update a child row: a foreign key constraint fails
- SQLSTATE[23000]: Integrity constraint violation: 1052 Column 'id' in field list is ambiguous
- SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`apolonia_db`.`shops`, CONSTRAINT `shops_parent_pharmacy_id_foreign` FOREIGN KEY (`parent_pharmacy_id`) REFERENCES `shops` (`id`))
- Which of the following sentences is incorrect? Select one: a. Dependency preserving implies lossless join and vice-versa. b. Lossless join decomposition must be achieved at all times. c. Functional Dependencies are a kind of integrity constraints. d. BCNF
- SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'image' cannot be null (SQL: update `logins` set `name` = testdata, `image` = ?, `logins`.`updated_at` = 2020-12-22 11:29:55 where `id` = 48)
- A rule that each foreign key value must match a primary key value in the other relation is called as? Select one: a. Referential integrity constraint b. Entity integrity constraint c. Tuple constraint d. Semantic integrity constraint
- "The maximum number of courses a student can take in one term is 6." Which constraint should be used to enforce this statement? Select one: a. Referential integrity constraint b. Entity integrity constraint c. Tuple constraint d. Semantic integrity constr
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