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JPA EntityManager: Why use persist() over merge()?
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MikeMike
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How to extract text from a string using sed?
...currence.)
– tripleee
Dec 12 '13 at 11:53
See also stackoverflow.com/a/48898886/874188 for how to replace various othe...
how to generate migration to make references polymorphic
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Dorian
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answered Apr 4 '11 at 4:38
Michelle TilleyMichelle Tilley
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When to use volatile with multi threading?
...apply Acquire and Release semantics on volatile variables.
[Update for C++11]
The C++11 Standard now does acknowledge multithreading directly in the memory model and the lanuage, and it provides library facilities to deal with it in a platform-independant way. However the semantics of volatile st...
Change old commit message on Git
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Community♦
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answered Dec 10 '09 at 22:37
VonCVonC
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SQL Server - When to use Clustered vs non-Clustered Index?
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I just want to put in a word of warning: please very carefully pick your clustered index! Ever...
The transaction log for the database is full
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answered Jul 16 '13 at 11:35
Mike HendersonMike Henderson
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How to drop into REPL (Read, Eval, Print, Loop) from Python code
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Here's how you should do it (IPython > v0.11):
import IPython
IPython.embed()
For IPython <= v0.11:
from IPython.Shell import IPShellEmbed
ipshell = IPShellEmbed()
ipshell() # this call anywhere in your program will start IPython
You should use IPython, th...
Do while loop in SQL Server 2008
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edited Jun 11 '14 at 17:32
Sk8erPeter
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Iterator invalidation rules
...he iterators and references before the insertion point remain valid. [26.3.11.5/1]
With respect to the reserve function, reallocation invalidates all the references, pointers, and iterators referring to the elements in the sequence. No reallocation shall take place during insertions that happen afte...