Answer / ganesh

select row_number()over() from table_name

Answer / sasidharreddy

by using inspect

When is the skeleton cursor table created?

1 Answers  

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What does the sqlcode of -818 pertain to?

3 Answers  

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What is a root page?

1 Answers  

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What is a DB2 catalog?

2 Answers  

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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 is the cobol picture clause of the db2 data types date, time, timestamp?

0 Answers  

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what is the difference between join and union?

4 Answers   IBM,

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Which DB2 catalog tables are used to produce a list of table column by table for all tables in a database?

1 Answers  

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What is pagespace?

1 Answers  

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How would the varchar column remarks defined?

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why we go for SPUFI for creating tables or for sql queries?

4 Answers  

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When the like statement is used?

0 Answers  

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