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Explain outer join?
Outer Join - If there are any values in one table which do not have corresponding value(s) in the other, in an equi-join which will not be chosen. Such rows could be forcefully selected through using the outer join. The corresponding columns for in which row will have NULLs. There are actually three forms of the outer-join operation: left outer join ( X), right outer join (X ) and full outer join ( X ).
how to design a bakery business in data base
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What is it ?
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
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Can we delete data element, which is being used by table fields. No we cant delete data element.
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