Tem variable data types;
Variable data types may be varchar (100) may be either number of other data types
CodePudding user response:
1, if is the relationship between library, PL/SQL variables, that is dynamically defined variable type; If it is a table, it can define multiple different types of fields, of course, you can also put different types into a unified type, and then put into a variable or field;2, this kind of problem, no library will become more convenient,