When to use T-SQL over SQL when there are more joins ?

Hi,

I have to prepare a Stored procedure which will have atleast 10 joins and may return a large result set (probably more than  50 thousand records or even more ) which may cause performance issues. Is it better to go for T-Sql or write it with sql joins only?

Also, when to use T-SQL over SQL?

Regards

Gautam

Gautam S