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Tech Mahindra SQL PLSQL Interview Questions
Questions Answers Views Company eMail

what is the difference between trigger and storedprocedures

16 23164

What are the default Oracle triggers??

3 15064

What is the difference between DELETE and TRUNCATE?

15 17258

i have doubt that any one tell ref cursor comes in sql pl/sql? pls clarify?

4 6581

what is the need of the cursor attribute notfound..(because using found attribute we can complete the task......found + negation operator = not found )

2 6027





how do you count the duplicate records in a table

10 14029

how u can find the n row from a table?

19 20105

what is the difference between implicit and explicit trigger

2 18319

can we delete the trigger in a view? if yes why if not why?

5 12179

What is mutating trigger?How to avoid it??

3 11067

what is the difference between cursor FETCH and FOR LOOP ?

3 22335

What is a mutating table

5 7557

Write a procedure to return the month and the number of developers joined in each month (cursor )

2 7531

Practice 1: Changes to data will only be allowed on tables during normal office hours of 8.45 in the morning until 5.30 in the afternoon, MONDAY through FRIDAY. A. Create a procedure called SECURE_DML that prevents the DML statement from executing outside of normal office hours, returning the message: “you may only make changes during normal office hours” b. Create a statement trigger on the PRODUCT table which calls the above procedure. c. Test it by inserting a new record in the PRODUCT table.

1 8811

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Tech Mahindra SQL PLSQL Interview Questions


Un-Answered Questions

How to read data in a table with "select" statements?

233


Explain some new features available in jdbc 4.0?

244


Tell me what http servers and java servlet engine combinations are supported with peopletools 8.4?

198


What is the difference between shadow dom and virtual dom?

53


What is SKM and when we will use this SKM?

63






Explain the difference between the stack and the heap?

225


Explain what is wrong with this statement? Myname = ?robin?;

414


Give an example of a directcast.

199


what is Modal plugin used for in Bootstrap?

1


What is beanpostprocessor in spring?

30


WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

1019


Explain ratio control system.

263


Without air traffic control, what is the minimum descent rate can descend the plane?

252


What are the different types of database testing?

1


Why is spark popular?

50