摘要：
Oracle's VARRAYs behave like classes in object-oriented programming. Classes are instantiated into objects using constructors.SQL>SQL>CREATEORREPLACETYPEmem_typeISVARRAY(10)ofVARCHAR2(15)2/Typecreated.SQL>SQL>CREATETABLEclub(NameVARCHAR2(10),2AddressVARCHAR2(20),3CityVARCHAR2(20),4Ph 阅读全文
