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How to do a batch insert in MySQL
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Insert into table(col1,col2) select col1,col2 from table_2;
Please refer to MySQL documentation on INSERT Statement
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What is the leading LINQ for JavaScript library? [closed]
... different names (in fact, they have more traditional names than in Linq). Select becomes map, Where becomes filter, First and FirstOrDefault become [0].
Almost no library I know of (including I think the ones you linked to) bother to make the implementation lazy as in .NET Linq, they just evaluate...
Aligning text and image on UIButton with imageEdgeInsets and titleEdgeInsets
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In interface Builder. Select the UIButton -> Attributes Inspector -> Edge=Title and modify the edge insets
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How does Spring autowire by name when more than one matching bean is found?
...o multiple candidates, it is often necessary to have more control over the selection process. One way to accomplish this is with Spring's @Qualifier annotation. This allows for associating qualifier values with specific arguments, narrowing the set of type matches so that a specific bean is chosen f...
PSQLException: current transaction is aborted, commands ignored until end of transaction block
...t = connection.createStatement();
statement.executeQuery("select * from moobar");
//This SQL is correctly formed, yet it throws the
//'transaction is aborted' SQL Exception, why? Because:
//A. you were in a transaction.
//B. You ran a SQL stateme...
Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
I want to slice a NumPy nxn array. I want to extract an arbitrary selection of m rows and columns of that array (i.e. without any pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it.
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How to have Emacs auto-refresh all buffers when files have changed on disk?
...GUI (Mine is GNU Emacs 25.1.1 on Windows 7):
Click "Options" in menubar
Select "Customize Emacs"
Select "Saved Options"
Then you should see a search field where you enter "global-auto-revert-mode" and press "Search" button
Click "Toggle" button and make sure it reads "on" to the right of the butt...
UILabel sizeToFit doesn't work with autolayout ios6
...ContentHuggingPriority and vertical ContentCompressionResistancePriority.
Select and edit height constraint.
And decrease height constraint priority.
Enjoy. :)
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How to debug stream().map(…) with lambda expressions?
... illustrate:
1- Press F7 (step into) key, will display the highlights (or selection mode)
2- Use Tab multiple times to select the snippet to debug
3- Press F7 (step into) key to step into
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How to join (merge) data frames (inner, outer, left, right)
...s these operations in SQL.
library(sqldf)
## inner join
df3 <- sqldf("SELECT CustomerId, Product, State
FROM df1
JOIN df2 USING(CustomerID)")
## left join (substitute 'right' for right join)
df4 <- sqldf("SELECT CustomerId, Product, State
FROM df1...