What is raid? How does it help storage of databases?
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What normalization means?
What is primary key and foreign key with example?
Dear All, Question for this Week Find out possible error(s) (either at compile time or at runtime) in the following PL/SQL block. State the reason(s) and correct the errors. Declare Cursor C1 is select ename, sal, comm from emp; Begin For i in C1 Loop If i.comm between 299 and 999 then Dbms_output.put_line(i.Ename || ‘ ** Good Commission’); Elsif i.comm > 999 then Dbms_output.put_line(i.Empno || ‘ ** Very Good Commission’); close C1; Else Dbms_output.put_line(i.Ename || ‘ ** ’ ||nvl(i.comm,‘O’)); End if; End Loop; End;
Difference between aggregate function and analytical function?
What is interval partition?
What is the difference among union, minus and intersect?
Why do we use sql constraints? Which constraints we can use while creating database in sql?
How do you respond to dementia behavior?
Is id a reserved word in sql?
wt is the diff b/w greast and max ,least and min? wt is the diff b/w case and decod?
4 Answers Oracle, TCS, Tecnics,
What are field types?
wht is the difference between sqlaserver2000 and 2005
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