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List all tables in postgresql information_schema
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For private schema 'xxx' in postgresql :
SELECT table_name FROM information_schema.tables
WHERE table_schema = 'xxx' AND table_type = 'BASE TABLE'
Without table_type = 'BASE TABLE' , you will list tables and views
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How to read lines of a file in Ruby
...d "\r\n" from Windows, here's what I would do:
line_num=0
text=File.open('xxx.txt').read
text.gsub!(/\r\n?/, "\n")
text.each_line do |line|
print "#{line_num += 1} #{line}"
end
Of course this could be a bad idea on very large files since it means loading the whole file into memory.
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Is it possible to run a single test in MiniTest?
...(temporally) add something to the test name very unique like:
it "my test xxx" do
end
and then use the RegEx version of the '-n' parameter like:
ruby my_test.rb -n /xxx/
share
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improve this an...
How to install Java SDK on CentOS?
...://www.oracle.com"$1}' | xargs wget --no-cookies --header "Cookie: gpw_e24=xxx; oraclelicense=accept-securebackup-cookie;" -O index.html -q && grep -Eoi '"filepath":"[^"]+jdk-8u[0-9]+-linux-x64.rpm"' index.html | grep -Eoi 'http:[^"]+' | xargs wget --no-cookies --header "Cookie: gpw_e24=xxx;...
Validate phone number with JavaScript
...econdly, your validation is incorrect. NANP numbers take the form NXX NXX XXXX where N is a digit 2-9 and X is a digit 0-9. Additionally, area codes and exchanges may not take the form N11 (end with two ones) to avoid confusion with special services except numbers in a non-geographic area code (80...
为AppInventor2开发自己的拓展(Extension) - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...等同于上面一行@UsesLibraries(libraries = "okhttp-3.12.13.jar, xxx.jar") //依赖第三方jar库的，多个英文逗号分隔public class Clipboard extends AndroidNonvisibleComponent implements Component { public static final int VER...
Linking to an external URL in Javadoc?
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The {@link xxx} here isn't right. {@link xxx} is for linking to other classes and methods in your source code. It's unnecessary here. The rest of it is fine.
– MiguelMunoz
Sep 2 '15 at 0:16
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Email address validation using ASP.NET MVC data type attributes
... issue and for me email validation works fine except for emails like 'name@xxx'. Has anyone else seen this?
– Kremena Lalova
Nov 3 '15 at 19:13
3
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When to add what indexes in a table in Rails
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Should I add "index" to all the foreign keys like "xxx_id"?
It would be better, because it accelerates the search in sorting in this column. And Foreign keys are something searched for a lot.
Since Version 5 of rails the index will be created automatically, for more inform...
How to change past commit to include a missed file?
... changes." I had already add-ed the missing files, so I did a commit with "xxx" as the message. Then I did the rebase command, and changed the "xxx" commit from "pick" to "edit". Then I did "git rebase --continue". Now when I look at the history I have "xxx" as the latest commit, and the earlier com...
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