What is normalization and what are the five normal forms?
Answer / guest
Normalization is a process of reducing the redundancy
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Is it Possible to read from PS file and write it to database by using dynamic sql(execute immediate)
If I have 5 Queries in a DB2 Cobol program , while precompiling how many DBRMs will get created and How many Plans and Packages will get created while Bind Process?
While creating a table, by mistake you have given size of one field as 10. But as per requirement size should be 8. What is your next step?
i have a table like this : Name ADDRESS Toto 123 ... Toto 456 ToTo 678 I would like to delete 2 last row...please tell me how to delete its
When is the skeleton cursor table created?
how will i display the duplicate record's from a table... i don't want to eliminate ...i want to display the duplicate record...for example in my table i have 10 record's like record no(1,2,3,4,2,9,6,1) in this ...so i want to receive duplicates...
What is the significance of DB2 free space and what parameters control it?
Can we insert update delete in view?
what is the name of the default db2 catalog 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 a plan and package in db2?
What are the various locks available?