DBMS Tutorial Point
Database-management-system Tutorial .
What are Joins in SQL? Joins in SQL combine rows from two or more tables. It creates a set of rows in a temporary table. Joining two or more tables is one of the most powerful features of relational systems. In fact, it is the availability of the Join operation, almost more than anything else … Read more
How to find the second-highest salary in SQL To find the second highest salary in SQL is a very common important interview question. If you are going for the role at the junior level. There are many ways to find the second-highest salary in SQL. Some important questions to find the salary are given below. Employees … Read more
Operators in SQL:- Arithmetic Operators in SQL Arithmetic operators manipulate numeric operands Operator Symbol Usage Result Addition + 15 + 5 20 Subtraction – 15 – 5 10 Multiplication * 15 * 5 75 Division / 15 / 5 3 Operators Table Comparison Operators Operator Symbol Usage Result Equal to = 15 = 5 false … Read more
What is a Relational Database Management System? Full form of RDBMS is –Relational Database Management System. Relational Database Management System Relational DataBase Management System representation of tables only. A relational database refers to a database that stores data in a structured format, using rows and columns. In RDBMS we can store the data in the … Read more
It Includes the latest DBMS MCQ Questions and Answer.SQL Online test questions and answers. 1.Evaluate the SQL statement: SELECT ROUND (TRUNC (MOD (1600, 10),-1), 2) FROM dual; What will be displayed? a) 0 b) 1 c) C.0.00 d) D.an error statement Ans A 2.Evaluate the SQL statement: TRUNCATE TABLE DEPT; Which three are true about … Read more