overlapping

问题 I would like to solve below scenarios for ID 100 & 101 as given output using oracle Analytical functions. any ideas? TABLE A: ID ValidFrom ValidTo 100 1/1/2009 12/31/2010 100 1/1/2011 3/31/2012 101 8/1/2013 7/31/2014 101 8/1/2014 8/31/2014 TABLE B ID ValidFrom ValidTo 100 11/1/2008 12/31/2011 100 2/1/2012 2/29/2012 101 8/1/2013 6/30/2014 101 7/1/2014 8/31/2014 OUTPUT: ID ValidFrom ValidTo 100 11/1/2008 12/31/2008 100 1/1/2009 12/31/2010 100 1/1/2011 12/31/2011 100 1/1/2012 1/31/2012 100 2/1

问题 I would like to solve below scenarios for ID 100 & 101 as given output using oracle Analytical functions. any ideas? TABLE A: ID ValidFrom ValidTo 100 1/1/2009 12/31/2010 100 1/1/2011 3/31/2012 101 8/1/2013 7/31/2014 101 8/1/2014 8/31/2014 TABLE B ID ValidFrom ValidTo 100 11/1/2008 12/31/2011 100 2/1/2012 2/29/2012 101 8/1/2013 6/30/2014 101 7/1/2014 8/31/2014 OUTPUT: ID ValidFrom ValidTo 100 11/1/2008 12/31/2008 100 1/1/2009 12/31/2010 100 1/1/2011 12/31/2011 100 1/1/2012 1/31/2012 100 2/1

问题 Let's say we have a table (table1) in which we store 4 values (user_id, name, start_date, end_date) table1 ------------------------------------------------ id user_id name start_date end_date ------------------------------------------------ 1 1 john 2016-04-02 2016-04-03 2 2 steve 2016-04-06 2016-04-06 3 3 sarah 2016-04-03 2016-04-03 4 1 john 2016-04-12 2016-04-15 I then enter a start_date of 2016-04-03 and end_date of 2016-04-03 to see if any of the users are available to be scheduled for a

问题 Let's say we have a table (table1) in which we store 4 values (user_id, name, start_date, end_date) table1 ------------------------------------------------ id user_id name start_date end_date ------------------------------------------------ 1 1 john 2016-04-02 2016-04-03 2 2 steve 2016-04-06 2016-04-06 3 3 sarah 2016-04-03 2016-04-03 4 1 john 2016-04-12 2016-04-15 I then enter a start_date of 2016-04-03 and end_date of 2016-04-03 to see if any of the users are available to be scheduled for a

问题 I understand the target approach for both the methods where Optimal Substructure calculates the optimal solution based on an input n while Overlapping Subproblems targets all the solutions for the range of input say from 1 to n. For a problem like the Rod Cutting Problem. In this case while finding the optimal cut, do we consider each cut hence it can be considered as Overlapping Subproblem and work bottom-up. Or do we consider the optimal cut for a given input n and work top-down. Hence,

问题 I understand the target approach for both the methods where Optimal Substructure calculates the optimal solution based on an input n while Overlapping Subproblems targets all the solutions for the range of input say from 1 to n. For a problem like the Rod Cutting Problem. In this case while finding the optimal cut, do we consider each cut hence it can be considered as Overlapping Subproblem and work bottom-up. Or do we consider the optimal cut for a given input n and work top-down. Hence,

问题 I understand the target approach for both the methods where Optimal Substructure calculates the optimal solution based on an input n while Overlapping Subproblems targets all the solutions for the range of input say from 1 to n. For a problem like the Rod Cutting Problem. In this case while finding the optimal cut, do we consider each cut hence it can be considered as Overlapping Subproblem and work bottom-up. Or do we consider the optimal cut for a given input n and work top-down. Hence,

来源： https://stackoverflow.com/questions/2945446/built-in-function-to-combine-overlapping-string-sequences-in-php

来源： https://stackoverflow.com/questions/2945446/built-in-function-to-combine-overlapping-string-sequences-in-php

来源： https://stackoverflow.com/questions/2945446/built-in-function-to-combine-overlapping-string-sequences-in-php