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Where can I get a list of Ansible pre-defined variables?
...at Ansible provide some pre-defined variables that we can use in playbooks and template files. For example, the host ip address is ansible_eth0.ipv4.address. Googleing and searching the docs I cound't find a list of all available variables. Would someone list them for me?
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Solutions for INSERT OR UPDATE on SQL Server
...ford & @Esteban show general idea but error-prone.
To avoid deadlocks and PK violations you can use something like this:
begin tran
if exists (select * from table with (updlock,serializable) where key = @key)
begin
update table set ...
where key = @key
end
else
begin
insert into tab...
How to open standard Google Map application from my application?
Once user presses button in my application, I would like to open standard Google Map application and to show particular location. How can I do it? (without using com.google.android.maps.MapView )
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Comma in C/C++ macro
...an also represent (or occur in) the comparison operators <, >, <= and >=, macro expansion can't ignore commas inside angle brackets like it does within parentheses. (This is also a problem for square brackets and braces, even though those usually occur as balanced pairs.) You can enclo...
Access Denied for User 'root'@'localhost' (using password: YES) - No Privileges?
... answered Jul 31 '13 at 16:42
Andy JonesAndy Jones
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Just what is Java EE really? [closed]
...ironment?
Actually they can. Most of the libraries can be directly used standalone (in Java SE) or included in a .war (practically that's nearly always Tomcat). Some parts of Java EE, like JPA, have explicit sections in their respective specifications that tells how they should work and be used in ...
Difference between sh and bash
When writing shell programs, we often use /bin/sh and /bin/bash . I usually use bash , but I don't know what's the difference between them.
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Use tab to indent in textarea
... }
});
jQuery: How to capture the TAB keypress within a Textbox
How to handle <tab> in textarea?
http://jsfiddle.net/jz6J5/
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
.... Then we iterate through for i up to n, doing two things: pressing A once and pressing select all + copy followed by paste j times (actually j-i-1 below; note the trick here: the contents are still in the clipboard, so we can paste it multiple times without copying each time). We only have to consi...
How to check if a user is logged in (how to properly use user.is_authenticated)?
...ng. I need to check if the current site user is logged in (authenticated), and am trying:
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