Tell me what is polymorphic association in ruby on rails?

794

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nw i'm doing MBA system and planning to do oracle,database management.tell me that whether it is useful r not?.refer any course for my carrier pls

2197

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How to work with data objects interactively?

969

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Hi Every body please explain me in steps to use checkpoints and object Repositories in QTP for Flight Reservation application please tell me the steps for this its urgent pls thanx for urs answers

2063

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How do you pull up a query which was previously saved in qmf?

1145

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How to create hyperlink from returned sql query ?

1116

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Explain what are the different errors in php?

980

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What's the difference between locking and lockless (optimistic and pessimistic) concurrency models?

938

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How can we remove loops in a linked list? What are the functions of fast and slow pointers?

1150

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using gradient pressure in gas chromatography are not ?using gradient pressure why

3382

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How can I print a workbooks full path in the header or footer? The page setup dialog box does not seem to offer the option.?

590

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How we can disable session in jsp?

973

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Describe the file types *.ear, * .jar and *.war?

986

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MORE THAN ONE APPLICATION POOL IN IIS(INTERNET INFORATION SERVICES) ARE NOT

2086

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How to move on from a rejection?

1185

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