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How to specify a multi-line shell variable?
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simply insert new line where necessary
sql="
SELECT c1, c2
from Table1, Table2
where ...
"
shell will be looking for the closing quotation mark
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Filter data.frame rows by a logical condition
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we can use data.table library
library(data.table)
expr <- data.table(expr)
expr[cell_type == "hesc"]
expr[cell_type %in% c("hesc","fibroblast")]
or filter using %like% operator for pattern matching
expr[cell_type %like% "hesc...
JPA: How to have one-to-many relation of the same Entity type
...both). But this resulted in a duplicate row being inserted into my Address table. Is this because I have misconfigured my CascadeType on the User's address field?
– Alex
Aug 25 '13 at 12:17
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How to delete all datastore in Google App Engine?
...n appengine) then datastore --> dataviewer, select all the rows for the table you want to delete and hit the delete button (you'll have to do this for all your tables).
You can do the same programmatically through the remote_api (but I never used it).
If you're talking about the development dat...
Case in Select Statement
...ample, the value in the SalariedFlag column of the HumanResources.Employee table is evaluated. Employees that have the SalariedFlag set to 1 are returned in order by the BusinessEntityID in descending order. Employees that have the SalariedFlag set to 0 are returned in order by the BusinessEntityID ...
Which HTML elements can receive focus?
...ment, HTMLSelectElement, HTMLTextAreaElement and HTMLAnchorElement. This notably omits HTMLButtonElement and HTMLAreaElement.
Today's browsers define focus() on HTMLElement, but an element won't actually take focus unless it's one of:
HTMLAnchorElement/HTMLAreaElement with an href
HTMLInputElement/...
Difference between “!==” and “==!” [closed]
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I fell under the same illusion of being able to use a <table>.
– Chad Harrison
Sep 7 '12 at 15:27
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Does my application “contain encryption”?
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does anyone know for the table they want us to fill out if we using InMobi SDK(based out of india) if this is considered a non-us-component and non-us-manufactured ?
– isJulian00
Dec 17 '18 at 3:31
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psql: FATAL: Peer authentication failed for user “dev”
...ostgresql? can't you just specify the authentication method in the pg_user table?
– fccoelho
May 9 '15 at 12:49
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Fastest way to check if a file exist using standard C++/C++11/C?
... or C++ way to check for existence, though.
– IInspectable
Sep 9 '13 at 21:32
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stat() seems to ...