SQL server 由於外鍵約束，不能修改，刪除表數據的解決方法

1.查詢出所有外鍵禁用的sql

select 'ALTER TABLE [' + b.name + '] NOCHECK CONSTRAINT ' + a.name +';' as 禁用約束
from sysobjects a ,sysobjects b 
where a.xtype ='f' and a.parent_obj = b.id

執行結果如圖所示:

 

 

2.查看1中的執行結果，copy你需要禁用外鍵的sql,如我需要禁用的外鍵為FK_Retail_Applyer_Retail_Applyer，則執行

ALTER TABLE [Retail_Applyer] CHECK CONSTRAINT FK_Retail_Applyer_Retail_Applyer;

 

3.然后執行插入語句

SET IDENTITY_INSERT Retail_Applyer ON; 
ALTER TABLE [Retail_Applyer] NOCHECK CONSTRAINT FK_Retail_Applyer_Retail_Applyer; INSERT INTO Retail_Applyer ([ApplyerID], [Name], [CertType], [CertNo], [Sex], [Birthday], [MarriageStatus], [DrivingLicenseHas], [DrivingLicenseNo], [Education], [SpouseID], [MailAddress], [JobIndustry], [JobCompany], [JobPosition], [JobEntryDate], [JobTitle], [JobCompIndustry], [JobCompProvince], [JobCompCity], [JobCompPhoneNo], [JobCompZip], [JobCompAddress], [JobCompAreaNo], [CurrProvince], [CurrCity], [CurrEntryDate], [CurrAddressZip], [CurrLivingCondition], [CurrAddress], [LastProvince], [LastCity], [LastEntryDate], [LastAddressZip], [LastAddress], [PhoneNo], [CellNo], [Email], [RegiProvince], [RegiCity], [RegiPhoneNo], [RegiZip], [RegiAddress], [IncomeYear], [IncomeOther], [FamilyMembers], [FamilyLivingTogether], [BankOpen], [BankBranch], [BankAccount], [BankOpenerName], [idCardCheckFlg], [CusType], [MainIncomeFrom], [OwnEstate], [PropertyOwner], [PropertyLoan], [PropertyAddType], [OtherPropertyAddress], [LastUpdBy], [LastUpdTime], [DesignaterName], [DesignaterIDNo], [DesignaterMobile], [DesignaterPhone], [PropertyLocation], [RegiDistrict], [PSBCrawlMark], [courtCrawlMark], [creditCrawlMark], [token], [DrivingLicenseDocNo], [CellNo1], [CellNo2], [CellNo3], [CellNo4], [CellNo5], [CellNo6], [CellNo7], [CellNo8], [CellNo9], [RetailApplyerTagId], [UPDTIM], [isExsitingCA], [certStartDate], [certEndDate], [isOcrIdentify], [nationality], [degree], [companyProperty], [certBackUrl], [certFrontUrl], [JobCompDistrict], [JobCompStreet], [JobCompGroup], [JobCompRoom], [ContractAddress], [jointLessees]) VALUES ('2226', N'張三', 'IdentityCard', '111111199101015618', 'Male', '19910101', 'Married', 'Has', NULL, 'Doctor', '2227', 'CurrAddr', 'GovernmentEmployee', 'Jdjdjj', 'Seniormanager', NULL, 'Juniortitle', 'AgriForestFarmFish', '340000', '340800', '60748500', NULL, '111鄉111路111號111室', '6310', '340000', '340800', '20200619', '265544', 'OwnProperty', 'Kckxk', NULL, NULL, NULL, NULL, NULL, '66880000', '15900726742', '[e-mail]', '340000', '340800', '60845555', NULL, '646646', '100000', '0', NULL, NULL, 'NongYe', '農業銀行上海分行', '6202130102404105099', N'張晨凱', N'N', '30', 'Salary', 'N', '', '', '', '', NULL, NULL, '', '', '', '', '', '340871', NULL, NULL, NULL, NULL, '64646646', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, '973', '2020-07-07 20:04:45.047', NULL, '19960111', '20280111', 'N', NULL, NULL, NULL, NULL, NULL, '111鄉', '111路', '111號', '111', 'CompAddr', NULL); 

SET IDENTITY_INSERT Retail_Applyer OFF;

4.執行完插入語句后，需要啟用之前禁用掉的外鍵即可

ALTER TABLE [Retail_Applyer] CHECK CONSTRAINT FK_Retail_Applyer_Retail_Applyer;

注：啟用所有外鍵的sql

select  'ALTER TABLE [' + b.name +  '] CHECK CONSTRAINT ' +  a.name +';' as  啟用約束     
from  sysobjects  a ,sysobjects  b     
where  a.xtype ='f' and  a.parent_obj = b.id

 查詢對應表關聯的外鍵約束情況

select
    fk.name,fk.object_id,OBJECT_NAME(fk.parent_object_id) as referenceTableName
from sys.foreign_keys as fk
join sys.objects as o on fk.referenced_object_id=o.object_id
where o.name='Retail_Applyer'