How do I do this question in SQL command?  Use the Oracle database employees table and CASE expression to decode the departmentid. Display the department id, last name, salary, and a column called “New Salary” whose value is based on the following conditions: If the department id is 10 then 1.25 * salary If the department id is 90 then 1.5 * salary If the department id is 130 then 1.75 * salary Otherwise, display the old salary.

CREATE TABLE Employee( firstName char(30) , lastName char(30) , hireDate date ,empNo int , empInitial char(30) , years int );   Write the SQL syntax to create an insert statement for the employee table you created above.

Create a function to insert a new product into an existing order, include the product id, unit price, quantity. The output of the function is the message to notify the calling program whether the update succeeded or not. note : Note: Sql code need not java  don't waste my time by giving java code

Write a query in SQL to display all the data of customers, in Table customers, that live in New York or California SELECT city FROM customers WHERE city = 'New York' OR city = 'California' SELECT * FROM customers WHERE city = 'New York' AND city = 'California' SELECT * FROM customers WHERE city = 'New York' OR city = 'California' SELECT ALL FROM customers WHERE city = 'New York' OR city = 'California' %3D

https://www.w3schools.com/sql/trysql.asp?filename=trysql_select_all

Need help writing SQL queries for sample data base

SQL ( ORACLE SQL DEVELOPER ) :  THIS IS FIRST , SECOND AND THIRD TABLE for the Task 1 to solve  :    create table author_45( auth_name char(50), gender char(1), age number(3), nationality char(50), PRIMARY KEY (auth_name) );     create table book_45( isbn number(10), title char(50), ver_no number(2), publisher char(50), PRIMARY KEY (isbn) );     create table writtenBy_45( isbn number(10), auth_name char(50), yr_published number(4), price number(3), no_copy number(4), PRIMARY KEY (isbn,auth_name), foreign key (isbn) references book_45, foreign key (auth_name) references author_45 );     insert into author_45 values ('Benoit','F',42,'French'); insert into author_ 45 values ('Antonini','M',33,'Italian'); insert into author_ 45 values ('McAven','F',31,'Australian'); insert into author_ 45 values ('Williams','M',90,'British');     insert into book_45 values (101,'atabases',1,'Possum'); insert into book_45 values (202,'SQL Primer',2,'Hall'); insert into book_45 values…

7

Consider the tables provided below and answer the following SQL questions: Table 1: Service SereicelD SereiceName Accounting. Security Maintenance Table 2: ServiceSetUp SereicelD SetupFee 2 3 4 100 300 350 Recurring 25 50 125 Tax 10% 11 9% Questions: Write insert statements to enter first two records into Table 1 as shown in above figure. Display a list that presents the data contained in Table 1 sorted by column 2 in descending order. Display the name of the service that has setup fee greater than $300. d. Display average of tax rates for all services.

SQL based question