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Hibernate: hbm2ddl.auto=update in production?
...ployments, namely the ones he is familiar with (his company, his industry, etc).
The universe of "production deployments" is vast and varied.
An experienced Hibernate developer knows exactly what DDL is going to result from a given mapping configuration. As long as you test and validate that what...
What is the difference between linear regression and logistic regression?
...nature. For instance, yes/no, true/false, red/green/blue,
1st/2nd/3rd/4th, etc.
Linear regression is used when your response variable is continuous. For instance, weight, height, number of hours, etc.
Equation
Linear regression gives an equation which is of the form Y = mX + C,
means equation w...
Rank items in an array using Python/NumPy, without sorting array twice
...
Use argsort twice, first to obtain the order of the array, then to obtain ranking:
array = numpy.array([4,2,7,1])
order = array.argsort()
ranks = order.argsort()
When dealing with 2D (or higher dimensional) arrays, be sure to pass an axis argument to argsort to...
To ARC or not to ARC? What are the pros and cons? [closed]
...n't become a decent intermediate programmer. You need to know the rules in order to bridge correctly with Core Foundation, and every intermediate programmer needs to deal with CF at some point. And you need to know the rules for mixed-ARC/MRC code. And you need to know the rules when you start messi...
How do I (or can I) SELECT DISTINCT on multiple columns?
.... I suggest a serial or an IDENTITY column in Postgres 10+.
Related:
In-order sequence generation
Auto increment table column
How is this faster?
The subquery in the EXISTS anti-semi-join can stop evaluating as soon as the first dupe is found (no point in looking further). For a base table wit...
How to use npm with node.exe?
...npm.cmd files from c:\nodejs\node_modules\npm\bin to c:\nodejs folder
In order to test npm, open cmd.exe change working directory to c:\nodejs and type npm --version. You will see the version of npm if it is setup correctly.
Once setup is done, it can be used to install/uninstall packages locally...
How to use DbContext.Database.SqlQuery(sql, params) with stored procedure? EF Code First C
...pe.DateTime, Value = endDate }); Another important thing is to respect the order of the parameters.
– Francisco Goldenstein
Jul 21 '14 at 17:56
...
How are zlib, gzip and zip related? What do they have in common and how are they different?
...A .tar file would have to be decompressed and scanned from start to end in order to build a directory, which is how a .tar file is listed.
Shortly after the introduction of gzip, around the mid-1990s, the same patent dispute called into question the free use of the .gif image format, very widely use...
Any reason to write the “private” keyword in C#?
...e in C# (meaning that if I don't write public , protected , internal , etc. it will be private by default). (Please correct me if I am wrong.)
...
When should I use a List vs a LinkedList
... curNode = list.First;
for (var k = 0; k < i/2; k++) // In order to insert a node at the middle of the list we need to find it
curNode = curNode.Next;
list.AddAfter(curNode, a); // Insert it after
}
decimal sum = 0;
foreach (var i...