what is difference between sap and oracle applications and which is now market leader?

Amity, Infosys, Rysigo, Unilogic Software, Wipro,

can we use a having cluase in groupby clause. if there are 500 records i will give rownumber<250 then how many records does it retrieve. wt is the result of nvl2(null,notnull,null) if there are four tables without using cartesian how many joins can be there. in the sql subqueries wt is the parent ans1)select 2)update,3) delete 4)2&3

i2,

what are collection attributes

GE,

in fun why return single value?

UST,

what is thae main difference between foreingkey and primarykey

what is normalization

NIC,

what is difference between sqlserver and oracle?

CMC,

I have table that has student names in it.If I query on the names my result set should return as 'VALUE NOT ENTERED' for null entries.

i want to know rdbms certification details and syallabus and for whom i contact for rdbms certification in bangalore i need answer very urgent please mail to aniltelkar50@gmail.com please as soon as possible

Canara Bank,

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