Salesforce.com Inc.'s (CRM) fiscal second-quarter profit more than doubled amid strong revenue growth, leading the company Thursday to raise its views for the fiscal year.

Higher-than-expected revenue and earnings per share and a raised full-year 2010 outlook will help allay some recent concerns that the San Francisco-based company, which specializes in on-demand business software, was experiencing a transition to a lower growth phase.

The company's shares jumped almost 9% to $50.20 in after-market trading, after closing at $46.18 Thursday. The shares have more than doubled since late November but remain off one-quarter from a year ago amid concerns about a slowdown in revenue growth rates.

Salesforce.com has weathered the downturn in the economy relatively well and has continued to grow its revenue amid shrinking corporate technology budgets. But in recent months analysts have expressed concern the fast-growing company could face lower renewal rates and declining demand due to layoffs and economic weakness. They worry that even as growth returns to the economy, Salesforce.com may not enjoy the turbo-charged growth rates it was seeing before the recession.

For the period ended July 31, Salesforce.com reported earnings of $21.2 million, or 17 cents a share, compared with $10 million, or 8 cents a share, a year earlier. Revenue grew 20% to $316.1 million.

In May, the company had projected earnings of 14 cents to 15 cents on revenue of $312 million to $313 million

Subscription and support revenue climbed 22%, while professional services and other revenue dropped 3%.

Gross margin widened to 80.2% from 79.4%. The company's paying customer base grew 32% to 63,200.

For the fiscal year, Salesforce.com now expects earnings of 60 cents to 61 cents a share on revenue of $1.27 billion to $1.28 billion, above the 59 cents to 60 cents and $1.25 billion to $1.27 billion the company previously expected.

The company expects fiscal third-quarter earnings of 15 cents to 16 cents on revenue of $323 million to $324 million. Wall Street expects earnings of 15 cents a share on revenue of $318 million.

-By Jessica Hodgson and Jay Miller, Dow Jones Newswires; 415-439-6455; jessica.hodgson@dowjones.com