Answer Posted / su

By using sql*plus environment.
we can specify the column width , through following
sql> COL empno FORMAT 999999
sql>COL ENAME FORMAT A30

sql>SELECT empno as "Employee Number",
ename as 'Employee Name"
FROM emp;

we can also use TTITLE, BTITLE etc
:)

in user parameter property we have list of values.can we write select query for binding? for example:: select empno from emp where deptno=:deptnum :deptnum is first parameter it displays distinct dept nos. if i do like this it is giving error:: bind variables are not allowed in the select statement

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