Question

我正在尝试编写一个查询而不是错误：

INSERT语句与FOREIGN KEY约束冲突...`

我可以有自己的错误。类似的东西：

＆LT;价值＆gt;并不存在于＆lt; table_name＆gt;

 TEST TABLE1:                       TEST TABLE2

 Col1 PK tinyint                    Col2 PK tinyint
 Col2 FK tinyint

我将以下触发器作为测试：

CREATE TRIGGER [dbo].[CHECK_INSERT]
FOR INSERT
ON TABLE1
AS
BEGIN
     DECLARE @loop AS TINYINT
     DECLARE @col1 AS TINYINT
     DECLARE @col2 AS TINYINT
     SELECT @loop = MIN (col1) FROM INSERTED
     SELECT @col1 = col1 FROM INSERTED WHERE col1 = @loop
     SELECT @col2 = col2 FROM INSERTED WHERE col1 = @loop

     IF NOT EXISTS (SELECT col2 FROM TABLE2 WHERE col2 = @col2) 
     AND ERROR_NUMBER() = 547
     BEGIN
          RAISERROR('%s does not exists on Table2', 16, 1, CAST(@col2 AS VARCHAR(3))
          ROLLBACK TRANSACTION
     END
END

我该如何处理此错误？谢谢。

Answer 1

你可以在try / catch中添加insert语句，但我想首先你需要INSTEAD OF INSERT触发器。

Try-Catch错误消息外键约束

1 个答案: