What is a dba?

279

What are the data management skills?

236

What are the different types of backup available in the oracle?

294

How can you find out how many users are currently logged into the database?

313

What does the no logging option do? Why would we be careful of using it?

272

How many types of dba are there?

274

What is pct free/pct used/pct increase parameter in segment? What is growth factor?

277

What is explain plan and how is it used?

284

If you see a pin hit ratio of less than 0.8 in the estat library cache report is this a problem? If so, how do you fix it?

801

The system administrator tells you that the system has not been rebooted in 6 months, should he be proud of this?

289

What does a hard one-to-one relationship mean (one where the relationship on both ends is "must")?

316

Explain the process you follow to start looking into performance issue at database level(if the application is running very slow, at what points do you need to go about the database inorder to improve the performance?)

341

What is da in database?

271

I am getting error "no communication channel" after changing the domain name? What is the solution?

287

Who is a database user?

272