What is the use of sql trace?

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What is a sql select statement?

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What is dml with example?

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What are the different type of joins in sql?

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How do you truncate?

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How to copy a table in another table with datas?

9 Answers  

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declare l1 number := null; l2 number :=null; begin if l1=l2 then message('equal'); else if l1<>l2 then message('not equal'); else message('else'); end if; end if; end; What will be the output ?

7 Answers   Oracle,

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what is cursor procedure

1 Answers   iGate,

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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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What is sql lookup?

0 Answers  

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what is the difference between nested subquery and correlated subquery?

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what is 'trigger' in sql? : Sql dba

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