Mention the downsides of page level lock.

0 Answers  

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pls explain the precompilation process of cobol-db2 pgm

3 Answers   HCL, IBM,

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Following a db2 update statement, what is the quickest way to compute the total number of updated rows?

0 Answers  

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Say CUST Table contains records like: CUSTNO CUSTNAME CUSTLOC 100 ABC SSS 200 XYZ 300 PQR 400 MNO WWW 500 CVV ------------- ------------- Now write a query to retrieve all records with CUSTLOC no data.

3 Answers   IBM,

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what is difference between random and sequence file access

1 Answers   Syntel,

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How do I start db2 in windows?

0 Answers  

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What is the difference between dbm cfg and db cfg file in db2 ?

0 Answers   MCN Solutions,

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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.

0 Answers  

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What if we fail to give values in columns declared as NOT NULL ?

3 Answers   Cap Gemini,

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which authority can be granted to group of users using the GRANT stmt? A) SYSCTRL B) SYSADM C) DBCTRL D) DB ADM

3 Answers   Accenture,

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List out the buffer pools in db2

0 Answers  

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assume ther are 5000 records in a database and want to fetch using cursor. cursor fetches only 3000 records and fetch is not happening for remaining 2000 records. why it happens and how to rectify it

1 Answers   TCS,

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