Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / mako
db2 list command option using c off
or
db2 list command option using c on
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Mention a credible reason why select* is never given preference in an sql program that has been embedded.
What are types of indexes?
How to compare data between two tables in db2?
How do I change the column size in db2?
How can you validate Sql errors during cursor operation in db2 pgms and where do you code?
What is an instance database?
What is the clustering index in the db2 database?
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.
What is concurrency?
In an sql table that is embedded, what is the procedure to retrieve rows that are part of a db2 table?
How do we specify index to include or not during bind process.
What is db2? Explain.
Is db2 free?
How to execute stored procedures?
How to fetch the last row from the table in SQL (db2)?
