Select all the employees who were hired in last 2 years and
who works in dept where max managers are working.
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What is a Database instance ? Explain?
Which Department has MOST NUMBER of employees?
8 Answers IBM, LeadSquared, Mastek,
Explain the use of owner option in exp command.
WHAT IS THE DIFFERENCE BETWEEN PRIMARY KEY(PK) CONSTRAINT AND UNIQUE KEY(UK) + NOT NULL(NN) CONSTRAINT ASSIGN TO A COLUMN ? INSTEAD OF ASSIGNING PK ,WE CAN ASSIGN UK + NN TO A COLUMN. WHAT ARE THE MARRITS AND DEMARITS BETWEEN THE ABOVE TWO?THE ABOVE TWO ARE SAME,THEY DON'T ALLOW DUPLICATE AS WELL AS NULL VALUES.
what is the difference between primary key & foreign key?
57 Answers CTS, Infosys, La Multi, Sparsh, Wipro,
Hi Can any one tell me what are the API's used in requisition import.
You have 4 instances running on the same UNIX box. How can you determine which shared memory and semaphores are associated with which instance?
How to create a new oracle data file?
How much memory your 10g xe server is using?
Why is oracle used?
What are named parameters?
What is Trace File ?