Regarding SQL Queries

Question

Iam developing a randomizing program .which selects random rows frm the database.iam using sql as backend and asp.net as front end.
i allow user to give a number say 1000, so 1000 random rows will be slected frm the database.iam using NEWID() for random selection.
But how do i put the user value into query. so as to select that many random rows from the databse.
please help me out on this

Answer 1

SQL> select * from (select * from scott.emp order by dbms_random.random) where rownum < 5 order by 1 ;
     EMPNO ENAME      JOB              MGR HIREDATE           SAL       COMM     DEPTNO
      7499 ALLEN      SALESMAN        7698 20-FEB-1981       1600        300         30
      7566 JONES      MANAGER         7839 02-APR-1981       2975                    20
      7876 ADAMS      CLERK           7788 23-MAY-1987       1100                    20
      7902 FORD       ANALYST         7566 03-DEC-1981       3000                    20
SQL> select * from (select * from scott.emp order by dbms_random.random) where rownum < 5 order by 1 ;
     EMPNO ENAME      JOB              MGR HIREDATE           SAL       COMM     DEPTNO
      7499 ALLEN      SALESMAN        7698 20-FEB-1981       1600        300         30
      7566 JONES      MANAGER         7839 02-APR-1981       2975                    20
      7782 CLARK      MANAGER         7839 09-JUN-1981       2450                    10
      7839 KING       PRESIDENT            17-NOV-1981       5000                    10
SQL> select * from (select * from scott.emp order by dbms_random.random) where rownum < 5 order by 1 ;
     EMPNO ENAME      JOB              MGR HIREDATE           SAL       COMM     DEPTNO
      7521 WARD       SALESMAN        7698 22-FEB-1981       1250        500         30
      7698 BLAKE      MANAGER         7839 01-MAY-1981       2850                    30
      7844 TURNER     SALESMAN        7698 08-SEP-1981       1500          0         30
      7900 JAMES      CLERK           7698 03-DEC-1981        950                    30
SQL>