SQL SERVER : generate Random number with prefix character

Sometimes there is a situation in which we need to generate a unique random number with some prefix. For example, in Railway, reservation a number like RAIL4562 .

There are various approaches to achieve this . But, we can do this using following query.

 select 'LearnAll'+cast((SELECT 10 + CONVERT(INT, ((9999-10)+1)*RAND())) as varchar)

When you run above-stated query, the result will look like below:

LearnAll1382

LearnAll8342

Credit for this Logic : Vinay

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