Cant Update dataBase after Adding a new Migration In EF core Code first approach
Arnab
66
Reputation points
My class is
public class Ittracker
{
[Required]
[RegularExpression("([a-zA-Z][a-zA-Z ]+)", ErrorMessage = "Only alphabets are allowed")]
public string Name { get; set; }
public int Id { get; set; }
[Required]
[RegularExpression("(^EST\\d+$)", ErrorMessage = "Invalid EmployeCode ")]
public string EmployeCode { get; set; }
[Required]
[EmailAddress]
public string EmailId { get; set; }
[Required]
public string Priority { get; set; }
[Required]
public string SupportType { get; set; }
[Required]
public string RequestDescription { get; set; }
public string Requeststatus { get; set; }
public string caseDetails { get; set; }
public string OptionalText { get; set; }
[DataType(DataType.Date)]
[BindProperty]
public DateTime StartDate { get; set; }
[DataType(DataType.Date)]
[BindProperty]
public DateTime? EndDate { get; set; }
[BindProperty]
public DateTime? RequestDate { get; set; }
[BindProperty, EmailAddress, Required]
public string MainEmailSend { get; set; }
[BindProperty, EmailAddress, Required]
public string ccEmail { get; set; }
}
so when I tried to add MainEmailSend,and ccEmail extra two properties and generated a migration and when I Did Update Database its giving the Error
PM> Add-Migration AddIttrackertoDatabasePhase2
Build started...
Build succeeded.
An operation was scaffolded that may result in the loss of data. Please review the migration for accuracy.
To undo this action, use Remove-Migration.
PM> Update-Database
Build started...
Build succeeded.
fail: Microsoft.EntityFrameworkCore.Database.Command[20102]
Failed executing DbCommand (3ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
DECLARE @var0 sysname;
SELECT @var0 = [d].[name]
FROM [sys].[default_constraints] [d]
INNER JOIN [sys].[columns] [c] ON [d].[parent_column_id] = [c].[column_id] AND [d].[parent_object_id] = [c].[object_id]
WHERE ([d].[parent_object_id] = OBJECT_ID(N'[Ittracker]') AND [c].[name] = N'ccEmail');
IF @var0 IS NOT NULL EXEC(N'ALTER TABLE [Ittracker] DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE [Ittracker] ALTER COLUMN [ccEmail] nvarchar(max) NULL;
Failed executing DbCommand (3ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
DECLARE @var0 sysname;
SELECT @var0 = [d].[name]
FROM [sys].[default_constraints] [d]
INNER JOIN [sys].[columns] [c] ON [d].[parent_column_id] = [c].[column_id] AND [d].[parent_object_id] = [c].[object_id]
WHERE ([d].[parent_object_id] = OBJECT_ID(N'[Ittracker]') AND [c].[name] = N'ccEmail');
IF @var0 IS NOT NULL EXEC(N'ALTER TABLE [Ittracker] DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE [Ittracker] ALTER COLUMN [ccEmail] nvarchar(max) NULL;
Microsoft.Data.SqlClient.SqlException (0x80131904): ALTER TABLE ALTER COLUMN failed because column 'ccEmail' does not exist in table 'Ittracker'.
at Microsoft.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at Microsoft.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at Microsoft.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at Microsoft.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at Microsoft.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean isAsync, Int32 timeout, Boolean asyncWrite)
at Microsoft.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry, String methodName)
at Microsoft.Data.SqlClient.SqlCommand.ExecuteNonQuery()
at Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteNonQuery(RelationalCommandParameterObject parameterObject)
at Microsoft.EntityFrameworkCore.Migrations.MigrationCommand.ExecuteNonQuery(IRelationalConnection connection, IReadOnlyDictionary`2 parameterValues)
at Microsoft.EntityFrameworkCore.Migrations.Internal.MigrationCommandExecutor.ExecuteNonQuery(IEnumerable`1 migrationCommands, IRelationalConnection connection)
at Microsoft.EntityFrameworkCore.Migrations.Internal.Migrator.Migrate(String targetMigration)
at Microsoft.EntityFrameworkCore.Design.Internal.MigrationsOperations.UpdateDatabase(String targetMigration, String contextType)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabaseImpl(String targetMigration, String contextType)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.UpdateDatabase.<>c__DisplayClass0_0.<.ctor>b__0()
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
ClientConnectionId:a1f593cf-3ab6-4330-a056-6b8609606a6d
Error Number:4924,State:1,Class:16
ALTER TABLE ALTER COLUMN failed because column 'ccEmail' does not exist in table 'Ittracker'.
For trying fresh I deleted some Previous Migrations from migration folder .....So what is going wrong and what is the solution plzz suggest .
And this is my Table structure
Do I have to Delete The whole Ittracker Table?