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Ways to implement data versioning in MongoDB
...nt contain a dictionary of time-stamped diffs. Something like this:
{
_id : "id of address book record",
changes : {
1234567 : { "city" : "Omaha", "state" : "Nebraska" },
1234568 : { "city" : "Kansas City", "state" : "Missouri" }
}
}
To make...
What is the difference between partitioning and bucketing a table in Hive ?
...example, suppose a table using date as the top-level partition and employee_id as the second-level partition leads to too many small partitions. Instead, if we bucket the employee table and use employee_id as the bucketing column, the value of this column will be hashed by a user-defined number into...
Automatically remove Subversion unversioned files
... Thomas WatnedalThomas Watnedal
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1
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Submit HTML form on self page
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edited Nov 3 '19 at 21:16
Peter Mortensen
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How to check what version of jQuery is loaded?
...uld be !==
– plankguy
Jan 27 '17 at 21:47
1
Note lowercase :)
– The Red Pea...
How to get city name from latitude and longitude coordinates in Google Maps?
...Area
– Leo Droidcoder
Jun 14 '16 at 21:34
2
For addresses in the USA (and some other countries) u...
How to convert all tables from MyISAM into InnoDB?
... whatsoever
– phil294
Apr 18 '19 at 21:53
1
How is the most recent edit not flagged? The MySQL po...
Best way to format integer as string with leading zeros? [duplicate]
... dynamically create the formatting string, [('{{0:0{0:d}d}}').format(len(my_list)).format(k) for k in my_list]
– Mark
Aug 28 '15 at 8:31
...
Iterate keys in a C++ map
...te on the keys instead of the pairs), then take a look at Boost's transform_iterator.
[Tip: when looking at Boost documentation for a new class, read the "examples" at the end first. You then have a sporting chance of figuring out what on earth the rest of it is talking about :-)]
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Proper Repository Pattern Design in PHP?
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I thought I'd take a crack at answering my own question. What follows is just one way of solvi...