public Foo findOrCreate(String name) { Foo foo = new Foo(); foo.setName(name); try { session.save(foo) } catch(ConstraintViolationException e) { foo = session.createCriteria(Foo.class).add(eq("name", name)).uniqueResult(); } return foo; } Run Code Online (Sandbox Code Playgroud)...
在一次的springboot项目中，使用DTO对数据库的两张表进行查询时，启动项目，控制台就会报关于这个方法的...
aViolation of UNIQUE KEY constraint 'IX_ClaimMain'. Cannot insert duplicate key in object 'dbo.ClaimMain'. The statement has been terminated 侵害独特的关键限制‘IX_ClaimMain’。 在对象‘dbo.ClaimMain’不能插入双重键。 声明被终止了[translate]...
后台服务测试过程中,发现往Oracle数据库表中插数据出现一个错误 unique constraint,如下: ### Error updating database. Cause:Java.sql.SQLIntegrityConstraintViolationException:ORA-00001: unique constraint (TEST53.SYS_C0032604) violated ### The error may exist in class path resource [sqlmapper/ACMClaimMa...
UniqueConstrainthas a single property: String[] columnNames: The names of the columns the constraint spans. In XML, unique constraints are represented by nestingunique-constraintelements within thetableelement. Eachunique-constraintelement in turn nestscolumn-nametext elements to enumerate the contraint'...
MySQLApplicationClientMySQLApplicationClientInsert dataValidate uniquenessUnique constraint violationError message 类图 以下是一个使用UNIQUE索引的类图示例: Student- id: int- name: string- email: string 总结 UNIQUE索引是一种特殊的索引类型,它可以用来保证表中某个列的唯一性。它的创建和使用相对简单,但是需要注...
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SQLIntegrityConstraintViolationException: ORA-00001: unique constraint及sequence调整初始值,sequence调整初始值
(org.hibernate.exception.ConstraintViolationException) ex.getCause(); errorMessage = fieldCnvrt(exDetail.getConstraintName()) + " birden fazla aynı değer içeremez!"; result.appendField("message", errorMessage); return ResponseEntity.status(HttpStatus.NOT_ACCEPTABLE).body(result); ...
Unique constraint violation in Django due to duplicate key value Question: The function I have is used for creating a new user in Django: """. def initialize(username, password, email, title, firstName, lastName, telephoneNumber, mobileNumber, smsActive, for_company_id = 1): ...