Explain db2.

228

What is query_cache_limit?

191

I have a subprogram B calling from mainprogram A.I have opened a cursor in A ,Can i fetch the same cursor in subprogram B , If yes , Please explain the reason?

1431

Which isolation level provides highest data integrity?

222

What is difference between alias and synonym in db2?

190

SET is the ANSI standard for variable assignment, SELECT is not. SET can only assign one variable at a time, SELECT can make multiple assignments at once. If assigning from a query, SET can only assign a scalar value. If the query returns multiple values/rows then SET will raise an error. SELECT will assign one of the values to the variable and hide the fact that multiple values were returned (so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one) When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the variable will not be changed from it's previous value) As far as speed differences - there are no direct differences between SET and SELECT. However SELECT's ability to make multiple assignments in one shot does give it a slight speed advantage over SET.

1747

What are the rules for db2 programming?

264

Mention the downsides of page level lock.

266

What is universal database?

216

can we view the access paths created by dbrm ? how ? thx

5373

What is concurrency?

276

What are the contents of dclgen?

240

What is db2 plan table?

220

How connect db2 database to datastage?

209

what is diffrence b/w file-aid tool and file-aid utility???

3479