if any of the column names is provided wrong, where do you
get the error(during precompilation or during Bind)
- 3 Answers
- 6666 Views
- I also Faced
- E-Mail Answers
Answer Posted / tej
The above answer is correct but not always.
If we use DECLARE TABLE in the program then the table and
columns names are validated in the pre-compilation step
itself.
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
What is a buffer in memory?
what is the role of the cursor in db2?
How and when does the db2 enforces the unique key?
what are bind concepts in db2 cobol?
How do I import data from excel to db2?
before altering a table is it necessary to lock ? if lock what is it ? how to do ? ifi want to lock a table what is that command ?
What is the difference between spufi and qmf?
What is bind and rebind in db2?
Is it possible to create an Instance in DB2 using DB2 Control Center ?
What are concurrency issues?
How is deadlock resolved?
Explain the contents that are a part of dclgen.
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.
Can one database have multiple instances?
What is db2? Explain.
