Can I use javascript on jsp page?

148

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

1400

Oracle

1389

When u close the form?

1

How to delete unix files which are more than 3 days old?

148

how to find the instance for null-control item?

1333

When a lot of changes are required in data, which one should be a preference to be used? String or stringbuffer?

202

What app opens xlsx files?

132

What causes automatic repair loop?

111

What is Standard and Custom Fields in Salesforce?

13

How to Raise a Particular Ticket in Realtime ?

1056

What is general pressure ratio for axial, reciprocating and centrifugal compressors?

992

How to define a anonymous function?

163

Can we set specific page to be displayed as homepage and different for blog posting in wordpress cms?

12

What is supply network collaboration? : supply chain management

1