RE: JAVA Developer

The ask some more advanced questions like what he thinks how rdbms finds one particular row out of 100T rows? Does he suspect that "where like '%java%'" can be tricky? May be he even has an idea how rdbms can order rows? May be he suspects that condition (b=1 or a=2) can be a culprit?  

Can you elaborate on this? 'tricky', 'culprit condition'

Joel Patterson
Database Administrator
joel.patterson_at_crowley.com
x72546
904 727-2546

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Laimutis Nedzinskas Sent: Monday, January 08, 2007 11:50 AM
To: oracle-l_at_freelists.org
Subject: RE: JAVA Developer  

Ask if he has heard about strong typing. Is he going to use strings for dates? Does he actualy know there is a date datatype in most of rdbms'es ? Does he suspect that date may be a datetime in some of them? Is he going to rely on implicit conversion or he already knows there is a function to convert string to/from date ? May be he even knows that format mask can be explicitely specified ?  

Ask if he has heard about bind variables to start with. Then ask how he is going to implement them. Ask to show (pseudo)code samples.  

The ask some more advanced questions like what he thinks how rdbms finds one particular row out of 100T rows? Does he suspect that "where like '%java%'" can be tricky? May be he even has an idea how rdbms can order rows? May be he suspects that condition (b=1 or a=2) can be a culprit?  

May be he has some idea that statement.execute means some network roundtrips to the server?              

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Joel.Patterson_at_crowley.com Sent: 8. janúar 2007 16:36
To: oracle-l_at_freelists.org
Subject: JAVA Developer

We are getting ready to hire a JAVA Developer, and I was asked if I wanted to ask some questions relating to the database.... or to see if we get along.  

Connection pooling comes to mind, not imbedding code that would become a cpu issue, etc.  

Not having much experience with Java, do anyone have questions I could entertain? Some of you may have had such an experience already, and could pass on a couple questions you wish you had asked, or would ask next time.  

Joel Patterson
Database Administrator
joel.patterson_at_crowley.com
x72546
904 727-2546

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