Faced some problem in sql and oracle

1) You can use SQL server Replication service with Oracle but maybe you have to make some schema changes for replication to work.

Read more http://msdn.microsoft.com/en-us/library/ms152481(v=SQL.90).aspx

2) To export data you can use SQL server Integration Services, make a package that will run a query against the database and export to file. You can also use reporting services with scheduling.

3) You can use each softwares management tool or you can find or buy other software like Toad http://www.toadworld.com/