如果我们接下来尝试插入一个CustomerID为 1 的客户: INSERTINTOCustomers(CustomerID,CustomerName,Email)VALUES(1,'Charlie','charlie@example.com'); 1. 2. 此时会遇到以下错误提示: Msg 2627, Level 14, State 1, Line 1 Violation of PRIMARY KEY constraint 'PK_Customers'. Cannot insert duplicate key i...
INSERTINTOEmployee(EmployeeID,Name,Email)VALUES(1,'Charlie','charlie@example.com'); 1. 将会抛出如下错误: Violation of PRIMARY KEY constraint 'PK__Employee__EmployeeID'. Cannot insert duplicate key in object 'dbo.Employee'. 1. 同样,我们尝试插入一个重复的邮箱地址: INSERTINTOEmployee(EmployeeID,...
create table A (id int) insert A(id) values (4),(345),(2),(56) create table B (id int) GO INSERT A(id) SELECT id from B GO It sounds as if this table has a default for the PK column which is a call to this scalar UDF. That design is not very fortunate, because ...
Cannot insert duplicate key exception when executing non-query: System.Data.SqlClient.SqlCommand Exception: System.Data.SqlClient.SqlException (0x80131904): 违反了 PRIMARY KEY 约束“cndx_PrimaryKey_Report”。不能在对象“dbo.ReportBase”中插入重复键。重复键值为 (a71a8c16-9d10-ed11-b391-0050568e9...
2627 - Violation of PRIMARY KEY constraint ‘PK_TBL’. Cannot insert duplicate key in object ‘dbo.TBL’. 利用如下SQL可以监控事务复制中发生的错误信息: UseDistributiongoDeclare@RepErrorsNewint--check last 5 mins; sql job executes every 5 minsSelect@RepErrorsNew=(selecttop1IDfromDistribution.dbo...
Server: Msg 2601, Level 14, State 1, Line 1 Cannot insert duplicate key row in object 'UnitMeasure' with unique index 'AK_UnitMeasure_Name'. The statement has been terminated. F. 使用 IGNORE_DUP_KEY 选项 以下示例首先在该选项设置为 IGNORE_DUP_KEY 时在临时表中插入多行,然后在该选项设置...
如果这是预期内的重复(即你希望更新现有记录),考虑使用 MERGE 语句或检查你的数据库是否支持 INSERT ... ON DUPLICATE KEY UPDATE 语法,并据此调整你的插入逻辑。 如果问题仍然存在,可能需要进一步检查数据库中的现有数据,以确定是否有其他逻辑错误或数据一致性问题导致主键冲突。
Cannot grant, deny, or revoke permissions to sa, dbo, entity owner, information_schema, sys, or yourself. Cannot insert duplicate key row in object... Cannot insert the value NULL into column 'ID', table Cannot open backup device 'C:\TEMP\Demo.bak'. Operating system error 2(The system...
CREATE TABLE TestBatch (ColA INT PRIMARY KEY, ColB CHAR(3)); GO INSERT INTO TestBatch VALUES (1, 'aaa'); INSERT INTO TestBatch VALUES (2, 'bbb'); INSERT INTO TestBatch VALUES (1, 'ccc'); -- Duplicate key error. GO SELECT * FROM TestBatch; -- Returns rows 1 and 2...
Cannot insert duplicate key in object 'dbo.t_unique'. The duplicate key value is (<NULL>, <NULL>). 只有SQL Server 执行出错,也就是说: SQL Server 会索引 NULL 值,所以唯一索引只能有一个 NULL 值。 Oracle 索引中如果部分字段为空,会索引其他不为空的字段;如果所有字段都为空,不会建立索引。