Query advance SQL database employee

-------------------------------------------------- --------  01. Calculation                 -------- -------------------------------------------------- /* Select * From Employee Select * From EmployeeAttendance */ -- Maximum, Minimum, Total -- You can put an Alias Name for the Field -- Example: Field Sum(HourlyWage) will be Field Total_HourlyWage Select Max(HourlyWage) as Max_HourlyWage, Min(HourlyWage)...

Query Basic SQL database employee

-------------------------------------------------- --------  01. Add Record                  -------- -------------------------------------------------- -- Recommended -- Tell the Field Name INSERT INTO Department (DepartmentNo, DepartmentName) VALUES (1, 'Restaurant') INSERT INTO Department (DepartmentNo, DepartmentName) VALUES (2, 'Bar') INSERT INTO Department (DepartmentNo,...

SQL Create Table Database Employee

CREATE TABLE Department ( DepartmentNo int not null default 0, DepartmentName varchar(20) not null default '' ) CREATE TABLE ShiftDetail ( ShiftNo int not null default 0, ShiftName varchar(20) not null default '', StartTime varchar(8) not null default '08:00:00', EndTime varchar(8) not null default '16:00:00' ) CREATE TABLE Employee ( EmployeeId int not null default 0, FirstName varchar(20) not null default '', ...

oracle database work

Oracle database is a collection of physical operating system files or disks (in the simplest terms). Oracle instance is set of Oracle background processes or threads and a shared memory area, which is memory that is shared across those threads or processes running on a single computer. There are basically 9 Processes but in a general system we need to mention the first five background processes.They...

How dangerous is the coronavirus 2020

The coronavirus is extremely dangerous, and I suspect that the danger is currently being underplayed by the world medical community to minimize panic as we prepare for the worst. Covid-19 is deadly, although fatality rates skyrocket for the elderly and those with compromised immune systems. First and foremost, it is really important to know that as of today (February 17, 2020), there is still much we do not know about SARS-CoV-2 (i.e....

What is the difference between DBMS and SQL

DBMS is a system and SQL is a language DBMS (Database Management System)A DBMS is a software for creating and managing databases. The DBMS provides users with a systematic way to create, retrieve, update and manage data. It is a middleware between the database which store all the data and the users or applications which need to interact with that stored database. A DBMS can limit what data the end user sees, as well as how...