Wat is SGA ?

3 Answers   ABB,

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How many types of triggers exist in pl/sql?

0 Answers  

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How do you delete data from a table?

0 Answers  

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IN A TABLE HAVE ONE COLUMN PRIMARY KEY..IT WILL NOT ALLOWS NULL VALUES AND DUPLICATE VALUES..INSTEAD OF PRIMARY KEY WHY CANT WE USE UNIQUE AND NOT NULL.THESE TWO ALSO DOESNT ACCEPT NULL VALUES IN NOT NULL AND UNIQUE DOESNT ACCEPT DUPLICATE VALUES? SO WHAT IS THE DIFEERENCE BETWEEN(UNIQUE,NOT NULL) AND PRIMARY KEY??????

8 Answers   rsystems,

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What does seeding a database mean?

0 Answers  

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select * from emp where sal in(select max(sal) from emp) here there is any limit for in operator how many values accpect ?

2 Answers  

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What is RAC in oracle?

7 Answers   MCN Solutions,

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What is a constraint? Tell me about its various levels.

0 Answers  

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What is a left inner join?

0 Answers  

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What is sql procedures and functions?

0 Answers  

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what is cursor and its type, what is ref cursor write a syntax to pass ref cursor into procedure out fucntion and call the procedure

0 Answers  

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Why you are not able to create a table using select command,if it is having a LONG column? for eg:create table test as select * from test1 here test1 containg a column having LONG datatype...

1 Answers  

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