What is the meaning of disabling a trigger?

0 Answers  

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Are ddl triggers fired for ddl statements within a pl/sql code executed using the dbms.sql package?

0 Answers  

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Is sqlite thread safe?

0 Answers  

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What is an Integrity Constraint?

4 Answers  

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In table a 1lakh data is present,in table b 20 thousand data is present, to get unique data from table a and b which join to be considered. whether right outer join or left inner join. 

2 Answers   GE,

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What is a self join ?

6 Answers   BirlaSoft,

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What is memory optimized table?

0 Answers  

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What is the difference between numeric and autonumber?

0 Answers  

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What is rule base and cost base optimizer?

2 Answers   Thermotech,

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what is ref cursor in pl/sql?

3 Answers  

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what is csv? : Sql dba

0 Answers  

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Hi, Can anybody please explain me the flow of the below query. I am not able to understand how this query works. This query is for finding the Nth highest salary.. SELECT DISTINCT (a.sal) FROM EMP A WHERE &N = (SELECT COUNT (DISTINCT (b.sal)) FROM EMP B WHERE a.sal<=b.sal); If N = 2 then second highest salary will be the o/p. If N = 3 then third highest salary will be the o/p. and so on.. Thanks, Nitin

5 Answers   Deloitte, Ness Technologies,

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