Generating random string in T-SQL [duplicate]

Answer 1

This is far from an optimal solution, but it will work as specified:

select char(rand()*26+65)+char(rand()*26+65)+char(rand()*26+65)
      +char(rand()*26+65)+char(rand()*26+65)+char(rand()*26+65)
      +char(rand()*26+65)+char(rand()*26+65)+char(rand()*26+65)
      +char(rand()*26+65)+char(rand()*26+65)+char(rand()*26+65)
      +char(rand()*26+65)+char(rand()*26+65)+char(rand()*26+65)

Example output:

WCZOVRCIRELAJUT

Answer 2

generate a GUID and take just the first 15 characters?

Generate a bunch of random numbers and translate to their ASCII values?