Monday 8 April 2013

STUDENT DETAILS IN SQL



create a student table with the fields namely roll number ,name,date of birth,sex,father name,address,phone number.
SQL> create table studentdetails(rno int, name varchar2(20),fname varchar2(20),dob varchar2(20),sex varchar2(10),address varchar2(20),pno int, sslc number(5),hsc number(5),ug number(5));
Table created.
SQL> insert into studentdetails values('&rno','& name ','& fname ','& dob ','& sex ', '& address '& pno’, '& ,sslc ','& hsc ', '& ug');
Enter value for rno: 1
Enter value for name:john
Enter value for fname:jony
Enter value for dob:10/12/91
Enter value for sex:male
Enter value for address:north korea
Enter value for pno:2345678267
Enter value for sslc:78
Enter value for hsc:69
Enter value for ug:88
1 row created.
ii.Create a course table fields namely course id,course applied,eligibility,fees/semester
SQL> create table course(cid int,courseapplied varchar2(20),eligibility varchar2(10),fees varchar2(10));
Table created.
SQL> insert into course values('&cid','& courseapplied ','& eligibility ', ’& fees’);
Enter value for cid: 1
Enter value for courseapplied:Mca-tech
Enter value for eligibility:ug
Enter value for fees:25000
1 row created.

iii.Write a query to display the SSLC,HSC and UG mark attained by a specific student.

SQL>select sslc,hsc,ug from studentdetails where  rno=1;

   SSLC   HSC   UG
   -------   ------   -----
     78       69       88

iv.Write a query to display the available course of the instituation.

SQL>select courseapplied from  course;

courseapplied
---------------------
Mca-tech
Mca-non tech
Mba

v.Write a query to display the details Course wise.

SQL>select *  from course where  courseapplied=’mba’;

CID   COURSEAPPLIED   ELIGIBILITY   FEES
-----   -------------------------   ------------------  -------
3             mba                            ug                  40000

vi.Find the topper in UG marks.

SQL>select max(ug)as “topper” from studentdetails;

TOPPER
-----------
88

vii.Find the least mark score in HSC

SQL>select min(hsc)as “least” from studentdetails;

LEAST
-----------
69




viii.Write a query to update the SSLC mark of any one student.

SQL>update studentdetails set hsc=80 where rno=1;
1 row updated.

 x.Course wise find the rank holder-using group by.

SQL>select ug from studentdetailas group by rno;

UG
----
88
77
65

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