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Regarding JDBC concept

 
Xavy prakash
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hai friends....

Actualy am doing intranet application in jsp,servlets...in that attendance page,login,logout time is calculated on click....the database has the following colums staff_id,staff_name,date,staff_login,staff_logout,etc....the case is...

morning if a person login,their id,name,login time has to be taken to database...

similarly if a person logout their id,name,login,logout time has to be entered....but id,name,login time will be already enterd in a row....during logout time insert query cant be used as it get inserted in second row...so retrieval will be a problem.......

session concept is not used...........


get me a proper suggestion......regarding querry
 
Bosun Bello
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I am having a hard time understanding your request. It sounds like you are saying that duplicate recoreds were inswerted, and you are having a hard time retrieving any. Is that what is happening or can you elaborate more on the issue.
 
Ananth Chellathurai
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Eclipse IDE Hibernate Spring
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I am not able understand either.
 
Campbell Ritchie
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Do you mean how would you append logout time to a previous login? Try selecting login times for the current user, the finding the largest of those login times? You would have to read about update.

You might find setting a cookie or session number on the user's computer makes it easier to find the session.

Please be specific in your thread titles, and welcome to JavaRanch
 
It is sorta covered in the JavaRanch Style Guide.
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