Why use subqueries instead of joins?
I have a Employee table with columns ename,eid,salary,deptno. How to retrieve sum of salary for each deptno?
What is the unique index?
Explain the order of sql statement execution?
What are data types in pl sql?
Explain what is sql*plus?
Why are indexes and views important to an organization?
how to enter binary numbers in sql statements? : Sql dba
What do you know by pl/sql cursors?
Explain the usage of WHERE CURRENT OF clause in cursors ?
What is oracle ? why we should go for oracle database instead of diffrent databases available in the industry.
can use the following like overloading concept in a single package: procedure p1(a varchar), procedure p1(a varchar2), procedure p1(a char)
What are the modes of parameters that can be passed to a procedure ?