SQL JOINS It is Data Base Management System(DBMS) concept in which is used to get the information from two or more tables. Types of Joins: Inner/equi join. Outer join: L eft outer join, Right outer join, Full outer join. Self …
Constraints : the following constraints are available in Oracle SQL. not null primary key foreign key check unique Not Null Constraint NULL is not a value ,it is the meaning that value is not provided in this column. NULL …
