E.F. Codd (author of the whitepaper that is the foundation of all RDBMSs, for which SQL was created to query) was of the opinion that the SQL was a terrible lan

E.F. Codd (author of the whitepaper that is the foundation of all RDBMSs, for which SQL was created to query) was of the opinion that the SQL was a terrible language. His reasoning for saying so are very clearly and well speelled out in several books and articles of his.