如何解决违反完整性约束:cakephp
我试图删除问题选项,但该问题 ID 属于其他表,但显示此错误。
错误:SQLSTATE[23000]:违反完整性约束:1451 无法删除或更新父行:外键约束失败 (carbonate-staging
.course_assesments_multiple_choices
,CONSTRAINT A_q_Q_UID
FOREIGN KEY ( question_id
) 参考 course_assesment_questions
(id
) ON DELETE NO Action ON UPDATE NO ACT)
SQL 查询:DELETE CourseAssesmentQuestion
FROM carbonate-staging
.course_assesment_questions
AS CourseAssesmentQuestion
LEFT JOIN carbonate-staging
.courses
AS Course
ON (CourseAssesmentQuestion
.course_id
= Course
.id
) LEFT JOIN carbonate-staging
.course_units
AS CourseUnit
ON ({{1} }.CourseAssesmentQuestion
= course_unit_id
.CourseUnit
) WHERE id
.CourseAssesmentQuestion
= 601 AND NOT (course_id
.CourseAssesmentQuestion
= (第384章)
所以我只想在问题删除后删除questios及其选择。请帮我解决这个问题。
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