Question

Consider the following tables STORE and SUPPLIERS and answer (a) and (b) parts of this question:

Table : STORE

ItemNo	Item	Scode	Qty	Rate	LastBuy
2005	Sharpener Classic	23	60	8	31-Jun-09
2003	Ball pen 0.25	22	50	25	01-Feb-10
2002	Gel pen Classic	21	150	12	24-Feb-10
2006	Gel Pen Premium	21	250	20	11-Mar-09
2001	Eraser small	22	220	6	19-Jan-09
2004	Eraser Big	22	110	8	02-Dec-09
2009	Ball pen 0.5	21	180	18	03-Dec-09

Table: SUPPLIERS

Scode	Sname
21	Premium Stationers
23	Soft Plastics
22	Tetra Supply

(a)  Write SQL commands for the following statements:

(i) To display details of all the items in the Store table in ascending order of LastBuy.

(ii)  To display ItemNo and Item name of those items from Store table, whose Rate is more than 15 Rupees.

(iii) To display the details of those items whose Supplier code (Scode) is 22 or Quantity in Store (Qty) is more than 110 from the table Store.

(iv)  To display Minimum Rate of items for each Supplier individually as per Scode from the table Store. 

Answer 1

(i)  SELECT * FROM STORE ORDER BY LastBuy;

(ii)  SELECT ItemNo, Item FROM STORE WHERE Rate >15;

(iii)  SELECT * FROM STORE WHERE Scode = 22 OR Qty >110;

(iv)  SELECT Scode, MIN(Rate) FROM STORE GROUP BY Scode;