Why we use named query in hibernate?

190

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What is the use of define in c?

604

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How do I empty my downloads folder?

483

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Difference between sequential file and data set?

658

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How do you customize a ribbon?

331

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what is earliest retroactive accounting period

568

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How to write a code for reverse of string without using string functions?

1589

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Explain the windows in layout set.

562

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Is python list an array?

468

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How to find duplicates in a table?

624

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What are the different layers in a web application?

467

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What is the difference between PLC and Embeded system

978

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What is the scope of feature activation?

440

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What is transaction server explicit transaction?

548

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For a webbased application:- what should be code in expert veiw, for retrieving a single column name "username" from a server and checking whether exported "username" from datatable doesn't exist in server. suppose i have saved in excelsheet a username="gayatri" , which is exported, then checked for whether this username "gayatri" exist in server database or not ? if exist then allow to enter new username, which should be again checked for in loop , or else come out of loop and enter a distinct "username". plz let me have this answer in my id gayatrisahooin@hotmail.com

1763

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