If a table has a column "dept" (declared to have nulls) and
there are 10 rows in the table of which 3 have a null value
in the dept column, what will select count(*) and select
count(distinct dept) return?
Answer Posted / keshireddy
Hmm Virender is correct
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is the usage of open cursor command?
Mention some fields that are a part of sqlca.
Is db2 a database?
What is dbrm?
Explain what are the various isolation levels possible?
What is query_cache_limit?
What is a db2 tablespace?
What is dpf in db2?
define clustering index.
what is db2 restart?
How can you find out the # of rows updated after an update statement?
by using cursors , we can access particular records from the table based on some condition, i want to delete those selected records, how can we write a query for this in the program?
What is a dbrm in db2?
How do I copy a table in db2?
What is a db2 schema?