大约有 40,000 项符合查询结果（耗时：0.0989秒） [XML]
Is GridFS fast and reliable enough for production?
...ce it's up and running. The resize and store stuff is done by a simple php script... but for sure, a python script, or something like java could be faster.
Current data size : 11.23g
Current storage size : 12.5g
Indices : 5
Index size : 849.65m
About the reliability : This is very reliable. The...
What is JSON and why would I use it?
...
JSON (JavaScript Object Notation) is a lightweight format that is used for data interchanging. It is based on a subset of JavaScript language (the way objects are built in JavaScript). As stated in the MDN, some JavaScript is not JSON...
How to search for “R” materials? [closed]
...
I would just add, one great way to search for R script is to type your search term into google with "ext:r" at the end. This will return all files that have the R extension. For instance:
If you wanted some high performance computing examples, this returns Russ Lenth's...
open-ended function arguments with TypeScript
IMO, one of the main concerns of the TypeScript language is to support the existing vanilla JavaScript code. This is the impression I had at first glance. Take a look at the following JavaScript function which is perfectly valid:
...
What are good grep tools for Windows? [closed]
...d with gawk and xargs (includes 'find', from GnuWin32), and you can really script like you were on Unix!
See also the options I am using to grep recursively:
grep --include "*.xxx" -nRHI "my Text to grep" *
share
...
Bulk Insertion in Laravel using eloquent ORM
...
Or use Carbon in the beginning of the script to define a $now variable: $now = Carbon::now('utc')->toDateTimeString();. Then just use 'created_at' => $now, 'updated_at' => $now for every insertion.
– Pedro Moreira
N...
Remove Trailing Spaces and Update in Columns in SQL Server
...
Well here is a nice script to TRIM all varchar columns on a table dynamically:
--Just change table name
declare @MyTable varchar(100)
set @MyTable = 'MyTable'
--temp table to get column names and a row id
select column_name, ROW_NUMBER() OVER(...
What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
... source filenames. So "${BASH_SOURCE[0]}" would return you the name of the script file.
dirname is a utility provided by GNU coreutils that remove the last component from the filename. Thus if you execute your script by saying bash foo, "$( dirname "${BASH_SOURCE[0]}" )" would return .. If you said...
bash assign default value
...ERY_LONG_VARIABLE_NAME=${VERY_LONG_VARIABLE_NAME:-hello}. I hope you use descriptive variable names in your code :)
– pihentagy
Mar 5 '14 at 14:12
19
...
JOIN queries vs multiple queries
...ponential memory leak issue. Grab all of the data, then use a server-side scripting language to sort it out:
SELECT * FROM Address WHERE Personid IN(1,2,3);
Results:
Address.id : 1 // First person and their address
Address.Personid : 1
Address.City : "Boston"
Address.id : 2 ...