Delete duplicate records in the emp table.
- 6 Answers
- 12974 Views
- Oracle, I also Faced
- E-Mail Answers
Answer Posted / valli
delete from emp where rowid in(
select rowid from (
select emp_no, sal,rownum() over (emp_no,sal) as
Rownum from emp order_by emp_no,sal
) where rownum > 2
)
| Is This Answer Correct ? | 1 Yes | 4 No |
Post New Answer View All Answers
What are the ways on commenting in a pl/sql code?
How do I save a stored procedure?
If the application is running very slow? At what points you need to go about the database in order to improve the performance?
Can we use ddl commands in pl sql?
What is sqlerrm?
how to use 'mysql' to run sql statements? : Sql dba
What pl/sql package consists of?
What are the advantages of pl sql?
What is a sql select statement?
C. Normalize the following data up to the 3rd Normal form. Create the tables and insert the data given. Emp_ID Name Dept_Name Salary Course_Title Date_Completed 100 Adam Marketing 48,000 SPSS 6/19/2008 Surveys 10/7/2008 140 Bob Accounting 52,000 Tax Acc 12/8/2008 110 Cathy IT SQL Server 1/12/2008 C# 4/22/2008 190 Dan Finance 150 Emily Marketing 55,000 SPSS 6/16/2008 42,000 Analysis 8/12/2008 Queries 1. Find all Names who have completed the SPSS Course. 2. Find employee with max salary. 3. Find employee with 2nd max salary. 4. Find all employees in Dept “Marketing”. 5. Find all the employees who have taken more than 2 courses. 6. Find all the employees who have completed the courses before month of September.
What is trigger in pl sql with examples?
What mean sql?
How are functions and procedures called in PL/SQL?
What is program debugging?
Differentiate between pl/sql and sql?
