Use standard date formats

Use standard YYYY-MM-DD for dates in the demo

Author: lovasoa

GUI/index.html

@@ -24,20 +24,20 @@ <h1>Online SQL interpreter</h1>
                           hired_on    date,     salary  integer,
                           commission  float,    dept    integer);
 
-  INSERT INTO employees VALUES (1,'JOHNSON','ADMIN',6,'12-17-1990',18000,NULL,4);
-  INSERT INTO employees VALUES (2,'HARDING','MANAGER',9,'02-02-1998',52000,300,3);
-  INSERT INTO employees VALUES (3,'TAFT','SALES I',2,'01-02-1996',25000,500,3);
-  INSERT INTO employees VALUES (4,'HOOVER','SALES I',2,'04-02-1990',27000,NULL,3);
-  INSERT INTO employees VALUES (5,'LINCOLN','TECH',6,'06-23-1994',22500,1400,4);
-  INSERT INTO employees VALUES (6,'GARFIELD','MANAGER',9,'05-01-1993',54000,NULL,4);
-  INSERT INTO employees VALUES (7,'POLK','TECH',6,'09-22-1997',25000,NULL,4);
-  INSERT INTO employees VALUES (8,'GRANT','ENGINEER',10,'03-30-1997',32000,NULL,2);
-  INSERT INTO employees VALUES (9,'JACKSON','CEO',NULL,'01-01-1990',75000,NULL,4);
-  INSERT INTO employees VALUES (10,'FILLMORE','MANAGER',9,'08-09-1994',56000,NULL,2);
-  INSERT INTO employees VALUES (11,'ADAMS','ENGINEER',10,'03-15-1996',34000,NULL,2);
-  INSERT INTO employees VALUES (12,'WASHINGTON','ADMIN',6,'04-16-1998',18000,NULL,4);
-  INSERT INTO employees VALUES (13,'MONROE','ENGINEER',10,'12-03-2000',30000,NULL,2);
-  INSERT INTO employees VALUES (14,'ROOSEVELT','CPA',9,'10-12-1995',35000,NULL,1);
+  INSERT INTO employees VALUES (1,'JOHNSON','ADMIN',6,'1990-12-17',18000,NULL,4);
+  INSERT INTO employees VALUES (2,'HARDING','MANAGER',9,'1998-02-02',52000,300,3);
+  INSERT INTO employees VALUES (3,'TAFT','SALES I',2,'1996-01-02',25000,500,3);
+  INSERT INTO employees VALUES (4,'HOOVER','SALES I',2,'1990-04-02',27000,NULL,3);
+  INSERT INTO employees VALUES (5,'LINCOLN','TECH',6,'1994-06-23',22500,1400,4);
+  INSERT INTO employees VALUES (6,'GARFIELD','MANAGER',9,'1993-05-01',54000,NULL,4);
+  INSERT INTO employees VALUES (7,'POLK','TECH',6,'1997-09-22',25000,NULL,4);
+  INSERT INTO employees VALUES (8,'GRANT','ENGINEER',10,'1997-03-30',32000,NULL,2);
+  INSERT INTO employees VALUES (9,'JACKSON','CEO',NULL,'1990-01-01',75000,NULL,4);
+  INSERT INTO employees VALUES (10,'FILLMORE','MANAGER',9,'1994-08-09',56000,NULL,2);
+  INSERT INTO employees VALUES (11,'ADAMS','ENGINEER',10,'1996-03-15',34000,NULL,2);
+  INSERT INTO employees VALUES (12,'WASHINGTON','ADMIN',6,'1998-04-16',18000,NULL,4);
+  INSERT INTO employees VALUES (13,'MONROE','ENGINEER',10,'2000-12-03',30000,NULL,2);
+  INSERT INTO employees VALUES (14,'ROOSEVELT','CPA',9,'1995-10-12',35000,NULL,1);
 
 SELECT designation,COUNT(*) AS nbr, (AVG(salary)) AS avg_salary FROM employees GROUP BY designation ORDER BY avg_salary DESC;
 SELECT name,hired_on FROM employees ORDER BY hired_on;</textarea>