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Entity Framework .Remove() vs. .DeleteObject()
...n satisfied, requires every value of one attribute (column) of a relation (table) to exist as a value of another attribute in a different (or the same) relation (table), so when relationship is Optional we break the data Integrity rule
– Mohammadreza
Jul 15 '14...
Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]
...also sparseMatrix within the Matrix package, as seen here: R - convert BIG table into matrix by column names
with(tmp, sparseMatrix(i = as.numeric(x), j=as.numeric(y), x=z,
dimnames=list(levels(x), levels(y))))
## 2 x 3 sparse Matrix of class "dgCMatrix"
## a b c
## x 1 2 3...
Overloading Macro on Number of Arguments
...t << "i = " << i << endl;
return 0;
}
Run:
User@Table 13:06:16 /c/T
$ g++ test_overloaded_macros.cpp
User@Table 13:16:26 /c/T
$ ./a.exe
counter = 3
counter = 4
abc = 0
abc = 1
abc = 2
abc = 3
i = 0
i = 1
i = 2
i = 100
i = 101
i = 102
Note that having both _OVR and _OVR...
How to get all child inputs of a div element (jQuery)
...ry/1.11.1/jquery.min.js"></script>
<div id="panel">
<table>
<tr>
<td><input id="Search_NazovProjektu" type="text" value="Naz Val" /></td>
</tr>
<tr>
<td><input id="Search_Popis" type="text" value="Po...
DateTime2 vs DateTime in SQL Server
...or new
work. These types align with the SQL
Standard. They are more portable.
time, datetime2 and datetimeoffset
provide more seconds precision.
datetimeoffset provides time zone
support for globally deployed
applications.
datetime2 has larger date range, a larger default fractional ...
Why isn't sizeof for a struct equal to the sum of sizeof of each member?
...mbers-order-guarantee in C++. Compilers may (and certainly do) add virtual table pointer and base structures' members to the structure. Even the existence of virtual table is not ensured by the standard (virtual mechanism implementation is not specified) and therefore one can conclude that such guar...
What is the correct way to represent null XML elements?
...will never be called. For example, if your xsl turns the book element into table row (xhtml:tr) you may get the incorrect number of table cells (xhtml:td) using this method.
Leaving the element empty - This could indicate that the series is "", or is unknown, or that the book is not part of a series...
How to serialize SqlAlchemy result to JSON?
...s_dict(self):
return {c.name: getattr(self, c.name) for c in self.__table__.columns}
And then you use User.as_dict() to serialize your object.
As explained in Convert sqlalchemy row object to python dict
share
...
How does this CSS produce a circle?
...v id="box">
<div id="innerBox"></div>
</div>
<table id="chooser">
<tr>
<td><label for="total">Total</label></td>
<td><input id="total" value="0" type="range" min="0" max="100" step="1" /></td>
<t...
Is iterating ConcurrentHashMap values thread safe?
...nsertions or removals that occurred since the iterator was constructed. No table-wide locking is needed (or even possible) to provide thread-safety when iterating the collection. ConcurrentHashMap may be used as a replacement for synchronizedMap or Hashtable in any application that does not rely on ...