hibernate配置级联删除时报错:could not execute statement; SQL [n/a]; constraint [null],程序员大本营,技术文章内容聚合第一站。
Could not execute JDBC batch update 这个是不能执行批量更新,看看配置文件里 batch-size 属性有没有设置 Cannot add or update a child row: a foreign key constraint fails、 这个是由于更新数据,违反了外键约束
Could not execute JDBC batch update 这个是不能执行批量更新，你看看配置文件里 batch-size 属性有没有设置 Cannot add or update a child row: a foreign key constraint fails 、这个是由于你更新数据，违反了外键约束，外键约束是什么意思不用我说了吧。
Could not drop object 'student' because it is referenced by a FOREIGN KEY constraint 1. Find foreign keys SELECT*FROMsys.foreign_keysWHEREreferenced_object_id=object_id('Student') 2. Delete foreign keys SELECT'ALTER TABLE '+OBJECT_SCHEMA_NAME(parent_object_id)+'.['+OBJECT_NAME(parent_object...
Could not drop object 'student' because it is referenced by a FOREIGN KEY constraint 1. Find foreign keys SELECT*FROMsys.foreign_keysWHEREreferenced_object_id=object_id('Student') 2. Delete foreign keys SELECT'ALTER TABLE '+OBJECT_SCHEMA_NAME(parent_object_id)+'.['+OBJECT_NAME(parent_...
[XX_TO_YY]) Cannot add or update a child row: a foreign key constraint fails (`entity`.`property`, CONSTRAINT `FK_SALE_CONTEXTS_REFTBL` FOREIGN KEY (`REFTABLE_ID`) REFERENCES `fetransactions` (`REFTABLE_ID`)) 12:15:24,307 ERROR [org.hibernate.internal.ExceptionMapperStandardImpl] (...
1 create table emp (eno char(10) not null primary key,ename char(10),age int,sex char(10),ecity char(50))alter table emp add constraint checkage check(age between 0 and 150)alter table emp add constraint checksex check(sex='男' or sex='女')create table comp (cno char...
Cannot delete or update a parent row: a foreign key constraint fails (`ssh03`.`role_privilege`, CONSTRAINT `FK45FBD628F05C38CB` FOREIGN KEY (`role_id`) REFERENCES `role` (`roleId`)) Could not execute JDBC batch update Could not execute JDBC batch update; SQL [delete from role where...
Alter Table Add Column if Not Exists to update Schema Modification Script Alter Table add Column - How do you add a column after say the second column Alter table add constraint primary key clustered identity(1,1) ALTER TABLE ALTER COLUMN (To set the default value) ALTER TABLE Progress? ALT...
Cannot add or update a child row: a foreign key constraint fails 你这个感觉上应该是 想创建了一个 树形的表 FOREIGN KEY (`Cpno`) REFERENCES Co (243) : error C2601: \'main\' : local function definitions are illegal是么什意思什么 (243) : error C2601: \'main\' : local function defin...