What are the different types of triggers?

0 Answers  

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How we can create a table in pl/sql block. Insert records into it? Is it possible by some procedure or function? Please give example?

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Is coalesce faster than isnull?

0 Answers  

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What is oracle ? why we should go for oracle database instead of diffrent databases available in the industry.

5 Answers   Polaris,

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While inserting/updating million of records into a database table, how do I came to know how many records has been inserted or updated successfully so far?

2 Answers   HSBC,

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How do I view an execution plan in sql?

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What is snowflake sql?

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oracle is compiler or interpretter,can any one tell me the answer?

9 Answers   Satyam,

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How does postgresql compare to mysql?

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Why functions are used in sql?

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Which sorts rows in sql?

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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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