Hi All, I have a tricky problem that I'm trying to find the most effective method to solve. Here's a simplified version of my View structure. Table: Audits AuditID | PublicationID | AuditEndDate | AuditStartDate 1 | 3 | 13/05/2010 | 01/01/2010 2 | 1 | 31/12/2009 | 01/10/2009 3 | 3 ...
How advantageous is it to use partitioning of tables as compared to normal approach ? Is there a sort of sample case or detailed comparative analysis that could statistically ( i know this is too strong a word, but it would really help if it is illustrated by some numbers ) emphasize on the utility of the process. Thanks, Ankur ...
Is there a way in SQL Server to parition over a date range? I'm looking for something along these lines: SELECT ROW_NUMBER() OVER (PARTITION BY RANGE(DateTimeField) INTERVAL(1)) I want to group rows that are within one day of each other. ...
Hi, I have an issue with the following code : class quicksort { private: void _sort(double_it begin, double_it end) { if ( begin == end ) { return ; } double_it it = partition(begin, end, bind2nd(less<double>(), *begin)) ; iter_swap(begin, it-1); _sort(begin, it-1); _sort(it, end); } public: quicksort (){} ...
This is related to consistent hashing and while I conceptually understand what I need to do, I'm having a hard time translating this into code. I'm trying to divide a given keyspace (say, 128 bits) into equal sized partitions. I want the upper bound (highest key) of each partition. Basically, how would I complete this? #define KEYSPAC...
Hi, I only know the basics of sql server like create tables, procedures etc. I want to know about table partitioning in sql server. i would like to get a tutorial which is really simple and easy to understand. i want to know about table partition, index partition .... Please help. ...
Is there a Linux command to easily find out which partition/mount a directory or file is on? (This is probably a RTFM question, and I feel guilty for asking it, but somehow, I can't find a good answer on google just yet..) ...
I have a table that has more than 50 million records and which does not have any partition. But now i want to add a partition scheme to this table. This table has a primary key. But i want to partition it using another int column. How can i do it? ...
For a pair of cursors where the total number of rows in the resultset is required immediately after the first FETCH, ( after some trial-and-error ) I came up with the query below SELECT col_a, col_b, col_c, COUNT(*) OVER( PARTITION BY 1 ) AS rows_in_result FROM myTable JOIN theirTable ON myTable.col_a = theirTable.col_z GROUP BY ...
I am detecting when our proprietary USB device is attached to a PC. When we detect this, we get the related Win32_PnPEntity. We want to use this Win32_PnPEntity as a source of the following information: - USB Descriptor VID, PID, REV, Firmware Version. - Logical Disk Drive Volume and Partition information to get Drive Letter informatio...
Problem Statement: I have the following problem: There are more than a billion points in 3D space. The goal is to find the top N points which has largest number of neighbors within given distance R. Another condition is that the distance between any two points of those top N points must be greater than R. The distribution of those point...
Say I have a set (or graph) which is partitioned into groups. I am interested to find the number of transitions between two partitions, where a transition involves taking an element out of one partition and moving it into another (or singleton partition by itself) For example there is one transition between partitions 1 2 | 3 and 1 |...
Hello, This is a geometry question. I have a line between two points A and B and want separate it into k equal parts. I need the coordinates of the points that partition the line between A and B. Any help is highly appreciated. Thanks a lot! ...
(This is professional best practise/ pattern interest, not home work request) INPUT: any unordered sequence or generator items, function myfilter(item) returns True if filter condition is fulfilled OUTPUT: (filter_true, filter_false) tuple of sequences of original type which contain the elements partitioned according to filter in origi...
Hi there, My head gets stucked finding an algorithm for my problem. Assume I have N Numbers (lets say 4) and I want have ALL X-Partitions (X = N/2) Example: 2-Partitions of {1,2,3,4} are: (1,2) (1,3) (1,4) (2,3) (2,4) (3,4) [Simply: all combinations] I don't have a clue how to generate these combinations. If someone of you have an i...
Hello, I've designed mysql tables for bookings. One of them has hotels_id, rt_id, -> (room_type_id), date ..... Every rt_id has 365 rows (date). And every hotels_id has some rt_id (room types) for example 500 hotels and 8 room types per hotel -> 500 x 8 x 365 = 1.460.000 rows. I've used column index option for " hotels_id, rt_id, da...
Is it possible to partition based on char column? After reviewing the MySQL 5.1 documentation it appears that only integer types can be used. Is this correct? Or can I use some function to convert the char into an integer? The char field in question contains a unique identifier. ...
I'm programming in R. I've got a vector containing, let's say, 1000 values. Now let's say I want to partition these 1000 values randomly into two new sets, one containing 400 values and the other containing 600. How could I do this? I've thought about doing something like this... firstset <- sample(mydata, size=400) ...but this doesn'...
Hello, I have both EASEUS Partition Master and Paragon Partition Manager, but both do not let me alter my Linux partition. I cannot increase the size from the Linux partition itself since it is mounted. I currently do not have a free USB drive handy, so I cannot run Linux from it and open up gparted. How can I go about increasing the siz...
Hello, My Windows 7 32-bit PC suffered low disk space risk. I want to find a useful partition manager software to solve this problem... Free is best. Thank u all! ...