What is clustered, non-clustured and unique index. How many indexes can be created on a table ?

3 Answers   TCS,

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How do I count duplicates in sql?

0 Answers  

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Can we group by two columns in sql?

0 Answers  

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What port does sql server use?

0 Answers  

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How to add, remove, modify users using sql?

0 Answers  

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What is substitution variable?

0 Answers  

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what is the difference between to_char and to_date functions?

10 Answers   Infosys,

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How can we solve sql error: ora-00904: invalid identifier?

0 Answers  

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What is primary key and foreign key?

0 Answers  

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what is normalization? : Sql dba

0 Answers  

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explain mysql aggregate functions. : Sql dba

0 Answers  

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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;

7 Answers   Accenture,

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