This chapter is enacted for the purpose of raising revenue for general municipal purposes and is also intended to be regulatory. The payment of a business tax required by this chapter, its acceptance by the city, and the issuance of a business license to any person shall not entitle the licensee to engage in any business within the city unless he or she has complied with all of the requirements of this code and all other applicable laws, nor to engage in any business in any building or on any premises within a zone of the city in which such business is in violation of any law. (Ord. 505 § 1. 2002 Code § 6-1.2).