Tutorial by Examples: clause

Java's checked exception mechanism requires the programmer to declare that certain methods could throw specifed checked exceptions. This is done using the throws clause. For example: public class OddNumberException extends Exception { // a checked exception } public void checkEven(int number) ...
Customer Table IdFirstNameLastName1OzgurOzturk2YoussefMedi3HenryTai Order Table IdCustomerIdAmount12123.502314.80 Get all customers with a least one order SELECT * FROM Customer WHERE EXISTS ( SELECT * FROM Order WHERE Order.CustomerId=Customer.Id ) Result IdFirstNameLastName2YoussefM...
Use this to reset the table to the condition at which it was created. This deletes all rows and resets values such as auto-increment. It also doesn't log each individual row deletion. TRUNCATE TABLE Employees
CREATE TABLE myschema.tableNew AS ( SELECT * FROM myschema.tableOld WHERE column1 = 'myCriteria' ) WITH DATA
hql = "From Employee where id = 22";
Imagine that you need sort records by lowest value of either one of two columns. Some databases could use a non-aggregated MIN() or LEAST() function for this (... ORDER BY MIN(Date1, Date2)), but in standard SQL, you have to use a CASE expression. The CASE expression in the query below looks at th...

Page 3 of 3