How do you check whether a given string has only the alpha numerics (a-z or A-Z or 0-9)

Oracle Apps Interview QuestionsCategory: PL/SQLHow do you check whether a given string has only the alpha numerics (a-z or A-Z or 0-9)
Anonymous asked 3 years ago

How do you check whether a given string has only the alpha numerics (a-z or A-Z or 0-9)