Answer / salim

there are two type of sysnonyms
1.public
2.private

Hello All, Could any one provide me FAQs/interview questions on oracle PL/SQL

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1:-How to write to update command in a procedure in oracle which update two different table at a time 2:-How to write the select command in a procedure in oracle which give multiple records

1 Answers  

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What is the oracle implicit cursor?

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How to lock and unlock a user account in oracle?

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How to check the oracle tns settings?

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Differentiate between pre-select and pre-query?

0 Answers  

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i have procedure p1.and also i declare the same procedure in a package. whice one is efficient package procedure or procedure?

2 Answers   Microsoft,

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How to create an initialization parameter file?

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How index is implemented in oracle database?

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1. what is a single procedure? 2. suppose a view constructed on a query... after that in the master table a column was dropped, then what will be the status of that view? will it be invalid or something else? 3. what is mutating table error? how can you solve that problem? 4. suppose "select * from emp where empno=7788;" is running slow because of what ever the cause it is.. how can you fix it and make the execution faster? 5. will the snapshot of data will be stored in the RAM , where will ir be stored exactly. 6. how to delete 100 tables or 100000 tables' data from the schema without writing delete statement for no.of times. write an sql statement to do that job. 7. suppose a package contains so many cursors, procedures and all.. and we are using such types of procedures so many in a program. so the execution is to be stored all those packages and all to the RAM. utimately it is using many resources for each time execution. how can you reduce the time and using of resources for each execution because the query need to be run many times. how can you tune that? 8. suppose a procudere is there with specs as (a,b,c,d), all of these are IN mode only then while calling them should we pass all the 4 arguments? how to pass (b,c) only.. how ever the specs are wrote in the same order displayed in the above? 9. a function is returning a table type, how to access that function in a select statement? 10. i have a table in database A and another table in database B, how can you access the data of these two tables? write a query for that with dblinks. 11. i have two tables might have 15/20 columns in that.. i wanna send these columns(table) to the front end application for example you are using asp.net by writing a procedure. write that to perform the above job. 12. shall we create a table in the package? 13. shall we create a table in the procedure? 14. suppose i have 10 records, in that i want to select 7th record. write a query for that. cant you use rownum for this? 15. suppose my procedure has got around 20 select statements, in that some three select statements are running very slow. what will you write to detect which queries are running slowly? 16. what fields you use frequently in plan_table? 17. what is pipeline function? explain me with an example. 18. does a unique column can contain more than one null? 19. how many hints are there provided by oracle?

5 Answers   Honeywell,

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5. Display full details for the creditor/s who has received the single largest payment. Do not use a table join or set operator anywhere in your query.

6 Answers   Wipro,

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How to call a trigger inside a stored procedure?Give an example.

2 Answers  

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