I need to do a query to return the next (or prev) record if a certain record is not present. For instance consider the following table:
I have an XML like this <root> <el id=\"1\" value=\"3\"/> <el id=\"2\" value=\"3\"/> <el id=\"3\" value=\"4\"/>
Actually, all my question is written in subj-field. It\'s it somehow possible in PostgreSQL? Probably at server-config level, or can be configured in query, or in properties of table?
How can I select the maximum row from a table?What does maximum mean -- well my table has two timestamp columns, TIME1 and TIME2.The maximum column is the o开发者_开发百科ne with the latest value for
Need to rank the below by salary, with highest salary having rank 1. The RANK column shown is what I\'m after:
I\'m re-writing a small ms-access application to take examinations on. What they want is for the tests to grab a set of random questions based on how large the exam\'s size is.
This question already has answers here: How do I limit the number of rows returned by an Oracle query after ordering?
I\'m new to working with analytic functions. DEPT EMPSALARY ---- ----- ------ 10 MARY100000 10 JOHN200000
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