What is sqlerrm?

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What is the difference between sum and count in sql?

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how can i read write files from pl/sql

3 Answers  

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- Types of triggers - View - Dcl - Procedures, packages, functions - Metasolve - Can use Dcl in triggers - package case study - Cursor and its types - triggers schedule - Wrap - Why we are using fetch and for in cursor. difference?

0 Answers   CTS,

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what is a table in a database ? : Sql dba

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How does index help in query performance?

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What is the example of procedure?

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Explain commit, rollback and savepoint.

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Could you please provide oca (oracle 10g) dumps for my certification ?

1 Answers  

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Can we use the cursor's to create the collection in PL/SQL?

0 Answers   MCN Solutions,

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4. Select sum(A.salary) +sum(B.salary) as TOT_SAL from ( select LEVEL emp_id,level*100 salary,case when mod (level,2)=0then 2 else null end dept_id from dual connect by level<6 )A right outer join (select level emp_id ,level*200 salary ,case when mod (level,3)=0 then 2 else null end dept_id from dual connect by level<6)B On A.dept_id=B.dept_id And A.emp_id=B.emp-id;

1 Answers   Fintellix,

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what is unique key constraint? : Sql dba

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