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How do I declare a 2d array in C++ using new?
... Shouldn't it be i*sizeX+j? If I recall correctly, with row major ordering it should be row*numColumns+col.
– arao6
Oct 4 '15 at 20:29
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Unique Key constraints for multiple columns in Entity Framework
...et; }
The second parameter in the attribute is where you can specify the order of the columns in the index.
More information: MSDN
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NumPy array initialization (fill with identical values)
...Rolf Bartstra.)
a=np.empty(n); a.fill(5) is fastest.
In descending speed order:
%timeit a=np.empty(1e4); a.fill(5)
100000 loops, best of 3: 5.85 us per loop
%timeit a=np.empty(1e4); a[:]=5
100000 loops, best of 3: 7.15 us per loop
%timeit a=np.ones(1e4)*5
10000 loops, best of 3: 22.9 us per lo...
How to load all modules in a folder?
... pyc files can be included easily, and you are forgetting .pyd or .so libs etc too
– Anurag Uniyal
Mar 5 '12 at 3:26
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How can I find which tables reference a given table in Oracle SQL Developer?
...in ('P', 'U')
and table_name = :r_table_name
and owner = :r_owner
)
order by table_name, constraint_name
Where r_owner is the schema, and r_table_name is the table for which you are looking for references. The names are case sensitive
Be careful because on the reports tab of Oracle SQL D...
Ruby on Rails Server options [closed]
...alled an app server cluster (hence the name Mongrel Cluster, Thin Cluster, etc). You must then setup Apache or Nginx to reverse proxy to this cluster. Apache/Nginx will take care of distributing requests between the instances in the cluster (More on this in section "I/O concurrency models").
The web...
Get record counts for all tables in MySQL database
...
add "select * from (" at beginning and ") as output order by exact_row_count desc" at the end of generated query after removing last UNION to get order by table count desc
– Raghavendra
Jun 22 '18 at 5:42
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How should I store GUID in MySQL tables?
...erred flavour
To follow the code better, take the example given the digit-ordered GUID below. (Illegal characters are used for illustrative purposes - each place a unique character.) The functions will transform the byte ordering to achieve a bit order for superior index clustering. The reordered g...
What is the difference between a schema and a table and a database?
...tabase Management System) is the software (like MySQL, SQL Server, Oracle, etc) that manages and runs a database.
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Does bit-shift depend on endianness?
... new value is stored back in memory, which is where the little endian byte order comes into effect again.
Update, thanks to @jww: On PowerPC the vector shifts and rotates are endian sensitive. You can have a value in a vector register and a shift will produce different results on little-endian and...