Interested to Buy Any Domain ? << Click Here >> for more details...
How can you display the current date & current time ?
- 7 Answers
- 12876 Views
- Cap Gemini, I also Faced
- E-Mail Answers
Answer Posted / g.naveen
ASKTIME is command used to display the current Date & Time
| Is This Answer Correct ? | 5 Yes | 4 No |
Post New Answer View All Answers
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 the role of the cursor in db2?
What is an instance database?
What is innodb buffer pool?
When the like statement is used?
What are the two types of logging in the db2 database? Explain them.
How to resolve deadlock issue
DB2 can implement a join in three ways using a merge join, a nested join or a hybrid join. Explain the differences?
What is db2 bind process?
Which component is used to execute the sql statements?
What's The Error Code For Unique Index Voilation?
What is cobol db2?
What is ibm db2 connect?
What is dbrm? When it will be created?
Mention data types used in db2 ?
