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How to assign an exec result to a sql variable?
How do you assign the result of an exec call to a variable in SQL? I have a stored proc called up_GetBusinessDay , which returns a single date.
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Overriding a Rails default_scope
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Short answer: Do not use default_scope unless you really have to. You'll probably be better off with named scopes. With that said, you can use with_exclusive_scope to override the default scope if you need to.
Have a look at this question for more details.
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What is causing ERROR: there is no unique constraint matching given keys for referenced table?
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In postgresql all foreign keys must reference a unique key in the parent table, so in your bar table you must have a unique (name) index.
See also http://www.postgresql.org/docs/9.1/static/ddl-constraints.html#DDL-CONSTRAINTS-FK and speci...
BindingFlags.IgnoreCase not working for Type.GetProperty()?
...en the default look-up flags, if you specify new flags you need to provide all the info so that the property can be found. For example: BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance
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Can Retrofit with OKHttp use cache data when offline
...Just a word of advice: HttpResponseCache has been renamed to Cache.** Install it with OkHttpClient.setCache(...) instead of OkHttpClient.setResponseCache(...).
– Henrique de Sousa
May 28 '15 at 11:46
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instanceof Vs getClass( )
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@overexchange - You cannot validly infer that all use of instanceof (for example) is bad design. There are situations where it may be the best solution. Same for getClass(). I will repeat that I said "overuse" and not "use". Every case needs to be judged on its merit...
How to Turn Off Showing Whitespace Characters in Visual Studio IDE
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@Vintharas: It exists because people like me keep it on ALL THE TIME, because we like always being aware of what we're inserting or how we're changing the file. Gives us more casual control over our environment. There are also cases where it's actually critical, such as inside s...
Git submodule add: “a git directory is found locally” issue
I'm actually trying to learn how to use git, including the git submodule subcommands.
I already set up a server on which I can host, push and pull git repositories by using SSH.
I created a main git repository "Travail" on this server in which I would like to put all my projects as submodules.
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How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?
How can I programmatically (i.e., not using vi ) convert DOS/Windows newlines to Unix?
23 Answers
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std::string to char*
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It won't automatically convert (thank god). You'll have to use the method c_str() to get the C string version.
std::string str = "string";
const char *cstr = str.c_str();
Note that it returns a const char *; you aren't allowed to change the...