What is the difference between primary key, foreign key and candidate key?
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How do you select an index for a table
Two tables emp(empid,name,deptid,sal) and dept(deptid,deptname) are there.write a query which displays empname,corresponding deptname also display those employee names who donot belong to any dept.
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What do you mean by database?
can i use the commands "modify" and Change in DB2 to alter my column datatype and its name in a table?
Datatypes are unlimited,true or false?
What is ole db provider for sql server?
How to shrink a database?
Explain entity type?
write a query for the fifth highest salary?
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How heap is implemented in database?
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