Disclaimer: The information is based on internet statistics (and not compiled by me! Yes I’m not guilty!)
TIOBE programming community index is a measure of popularity of Turing complete languages based on search engine results. This index is not about the best programming language but about popular programming languages. TIOBE index selected Transact-SQL as the Language of the Year in 2013. Also T-SQL has been ranked 10th in July 2014 TIOBE index. Which language has got first Rank? It’s C (as you may guess). It is Interesting to note that our good-old Visual Basic (not the .NET flavour) is still popular with 6th rank and C# is just behind with the 7th rank.
P.S: TIOBE stands for ‘The Importance Of Being Earnest’. This is also the name of a play written by Oscar Wilde.