What is a pl/sql block?


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More SQL PLSQL Interview Questions

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,


In pl/sql, what is bulk binding, and when/how would it help performance?

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What is clustered index in sql?

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What is an index? What are the types of indexes? How many clustered indexes can be created on a table?

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Why coalesce is used in sql?

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How to fetch the rows by dynamicaly passing table name through cursor?

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What is record variable?

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What are different types of statements supported by sql?

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how to retrieve the top 2 salaried persons from a database?

7 Answers   Orion Laboratories,


Does indexing improve query performance?

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Is truncate ddl or dml?

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Define commit, rollback and savepoint?

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