DBMS LAB
- 1. LAB – 4 create table item(itemcode number, itemname varchar(20), price number(10,2), primary key(itemcode)); Table created. SQL> desc item; Name Null? Type ----------------------------------------- -------- ---------------------------- ITEMCODE NOT NULL NUMBER ITEMNAME VARCHAR2(20) PRICE NUMBER(10,2) create table purchase(itemcode number, qty number, foreign key(itemcode) references item(itemcode)); Table created. SQL> desc purchase; Name Null? Type ----------------------------------------- -------- ---------------------------- ITEMCODE NUMBER QTY NUMBER SQL> insert into item values('&itemcode','&itemname','&price'); Enter value for itemcode: 001 Enter value for itemname: tea_powder Enter value for price: 25 old 1: insert into item values('&itemcode','&itemname','&price')
- 2. new 1: insert into item values('001','tea_powder','25') 1 row created. SQL> / Enter value for itemcode: 002 Enter value for itemname: coffee_powder Enter value for price: 40 old 1: insert into item values('&itemcode','&itemname','&price') new 1: insert into item values('002','coffee_powder','40') 1 row created. SQL> / Enter value for itemcode: 003 Enter value for itemname: dove_soap Enter value for price: 49 old 1: insert into item values('&itemcode','&itemname','&price') new 1: insert into item values('003','dove_soap','49') 1 row created. SQL> / Enter value for itemcode: 004 Enter value for itemname: clinicplus
- 3. Enter value for price: 10 old 1: insert into item values('&itemcode','&itemname','&price') new 1: insert into item values('004','clinicplus','10') 1 row created. SQL> / Enter value for itemcode: 005 Enter value for itemname: chilly_powder Enter value for price: 15 old 1: insert into item values('&itemcode','&itemname','&price') new 1: insert into item values('005','chilly_powder','15') 1 row created. SQL> / Enter value for itemcode: 006 Enter value for itemname: fair&lovely Enter value for price: 40 old 1: insert into item values('&itemcode','&itemname','&price') new 1: insert into item values('006','fair&lovely','40') 1 row created. SQL> /
- 4. Enter value for itemcode: 007 Enter value for itemname: rice Enter value for price: 30 old 1: insert into item values('&itemcode','&itemname','&price') new 1: insert into item values('007','rice','30') 1 row created. SQL> select * from item; ITEMCODE ITEMNAME PRICE ---------- -------------------- ---------- 1 tea_powder 25 2 coffee_powder 40 3 dove_soap 49 4 clinicplus 10 5 chilly_powder 15 6 fair&lovely 40 7 rice 30 7 rows selected. SQL> insert into purchase values('&itemcode','&qty'); Enter value for itemcode: 001 Enter value for qty: 0
- 5. old 1: insert into purchase values('&itemcode','&qty') new 1: insert into purchase values('001','0') 1 row created. SQL> / Enter value for itemcode: 002 Enter value for qty: 2 old 1: insert into purchase values('&itemcode','&qty') new 1: insert into purchase values('002','2') 1 row created. SQL> / Enter value for itemcode: 003 Enter value for qty: 1 old 1: insert into purchase values('&itemcode','&qty') new 1: insert into purchase values('003','1') 1 row created. SQL> / Enter value for itemcode: 004 Enter value for qty: 5 old 1: insert into purchase values('&itemcode','&qty')
- 6. new 1: insert into purchase values('004','5') 1 row created. SQL> / Enter value for itemcode: 005 Enter value for qty: 0 old 1: insert into purchase values('&itemcode','&qty') new 1: insert into purchase values('005','0') 1 row created. SQL> / Enter value for itemcode: 007 Enter value for qty: 1 old 1: insert into purchase values('&itemcode','&qty') new 1: insert into purchase values('007','1') 1 row created. SQL> / Enter value for itemcode: 006 Enter value for qty: 2 old 1: insert into purchase values('&itemcode','&qty') new 1: insert into purchase values('006','2')
- 7. 1 row created. SQL> select * from purchase; ITEMCODE QTY ---------- ---------- 1 0 2 2 3 1 4 5 5 0 7 1 6 2 7 rows selected. SQL> select itemcode,itemname from item where itemcode in(select itemcode from purchase where qty!=0); ITEMCODE ITEMNAME ---------- -------------------- 2 coffee_powder 3 dove_soap 4 clinicplus 6 fair&lovely 7 rice
- 8. SQL> select itemcode,itemname from item where itemcode in(select itemcode from purchase where qty=0); ITEMCODE ITEMNAME ---------------------------------------- 1 Tea_powder 2 Chilly_powder SQL>select i.tem_code,p.item_name,p.qty from item I,purchase p where i.item_code=p.item_code; Select sum(item_code)total_items_purchased from purchase; SQL>Commit; Commit complete.