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Delete all Duplicate Rows except for One in MySQL? [duplicate]
How would I delete all duplicate data from a MySQL Table?
2 Answers
2
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How far can memory leaks go?
I've run into memory leaks many times. Usually when I'm malloc -ing like there's no tomorrow, or dangling FILE * s like dirty laundry. I generally assume (read: hope desperately) that all memory is cleaned up at least when the program terminates. Are there any situations where leaked memory won't ...
What is Unicode, UTF-8, UTF-16?
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Why do we need Unicode?
In the (not too) early days, all that existed was ASCII. This was okay, as all that would ever be needed were a few control characters, punctuation, numbers and letters like the ones in this sentence. Unfortunately, today's strange world of global interc...
Accessing localhost (xampp) from another computer over LAN network - how to?
I have just set up a wi-fi network at home. I have all my files on my desktop computer (192.168.1.56) and want to access localhost over there from another computer (192.168.1.2).
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Search in all files in a project in Sublime Text 3
Is there a way to search for a string in all files inside a project in Sublime Text 3? The string is not a method.
5 Answer...
Rename package in Android Studio
...package directory will now be broken up in individual directories
Individually select each directory you want to rename, and:
Right-click it
Select Refactor
Click on Rename
In the Pop-up dialog, click on Rename Package instead of Rename Directory
Enter the new name and hit Refactor
Click Do...
Get size of all tables in database
... i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
INNER JOIN
sys.allocation_units a ON p.partition_id = a.container_id
LEFT OUTER JOIN
sys.schemas s ON t.schema_id = s.schema_id
WHERE
t.NAME NOT LIKE 'dt%'
AND t.is_ms_shipped = 0
AND i.OBJECT_ID > 255
GROUP BY
t...
Hibernate - A collection with cascade=”all-delete-orphan” was no longer referenced by the owning ent
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Check all of the places where you are assigning something to sonEntities. The link you referenced distinctly points out creating a new HashSet but you can have this error anytime you reassign the set. For example:
public void se...
UDP vs TCP, how much faster is it? [closed]
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There are actually many cases where TCP is actually faster than UDP. See my answer below.
– Robert S. Barnes
Feb 15 '11 at 6:53
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When to use DataContract and DataMember attributes?
...tes, with .NET 3.5 SP1, Microsoft made the data contract serializer handle all classes - even without any of those attributes - much like the old XML serializer.
So as of .NET 3.5 SP1, you don't have to add data contract or data member attributes anymore - if you don't then the data contract serial...