25) Consider the following Entities and Relationships [30 Marks]
Politicians (pno, pname, telephone_no)
Party (party_code, party_name)
Relation between Politicians and Party is Many to One.
Constraint: Primary key.
Create a Database in 3NF & write queries for following.
• Display party names in ascending order.
• Find the party who is having less number of members than ‘Congress’ party.
• Display party wise politician name with details.
• Display the party name with the details of politicians whose name include “Rao”.
• Which party has maximum politicians
-->
Display party names in ascending order.
SQL>select pname from party order by pname asc;
Find the party who is having less number of members than ‘Congress’ party.
SQL>select min(party.pname) from politicians,party where politicians.pcode=party.pcode and party.pname<=(select min(party.pname) from politicians,party where politicians.pcode=party.pcode and party.pname='congress');
Display party wise politician name with details.
SQL>select party.pname,politicians.pname from politicians,party where politicians.pcode= party.pcode order by party.pname,politicians.pname asc;
Display the party name with the details of politicians whose name include “Rao”.
sql>select party.pname,politicians.pname from politicians,party where politicians.pname like '%rao%' and politicians.pcode=party.pcode;
Which party has maximum politicians .
sql>select max(party.pname)from politicians,party where politicians.pcode=party.pcode;
/
SQL>select pname from party order by pname asc;
Find the party who is having less number of members than ‘Congress’ party.
SQL>select min(party.pname) from politicians,party where politicians.pcode=party.pcode and party.pname<=(select min(party.pname) from politicians,party where politicians.pcode=party.pcode and party.pname='congress');
Display party wise politician name with details.
SQL>select party.pname,politicians.pname from politicians,party where politicians.pcode= party.pcode order by party.pname,politicians.pname asc;
Display the party name with the details of politicians whose name include “Rao”.
sql>select party.pname,politicians.pname from politicians,party where politicians.pname like '%rao%' and politicians.pcode=party.pcode;
Which party has maximum politicians .
sql>select max(party.pname)from politicians,party where politicians.pcode=party.pcode;
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