How to repair a DB using SSMS

Open SSMS and run the following command

GO  

ALTER DATABASE AxDB SET SINGLE_USER WITH ROLLBACK IMMEDIATE

GO

 DBCC CHECKDB('AxDB',REPAIR_REBUILD)

 GO  

ALTER DATABASE AxDB SET MULTI_USER

GO

If this didn't work then try this one

GO  

ALTER DATABASE AxDB SET SINGLE_USER WITH ROLLBACK IMMEDIATE

GO

DBCC CHECKDB ('AxDB', REPAIR_ALLOW_DATA_LOSS)

GO

ALTER DATABASE AxDB SET MULTI_USER

GO