I want to check if a reference type is null.I see two options (_settings is of reference type FooType):
I´d love to do something like this, but with a working syntax of course :) MIN(CASE WHEN col=2 THEN CASE WHEN answer IS NULL THEN 0 ELSE answer END END)
I\'m trying to sort a list of dates, but I\'m struggling with null dates which aren\'t being handled consistently.
I have statements such as @user = User.find(current_user.id) throughout my application. Sometimes a user might enter with a nil variable (such as a new user for whom current_user is nil).
开发者_运维技巧I want a servlet to print the parameters from a html form but in the servlet the request has no parameters.
I want to show a post author\'s name; <% @post.author.name %> works unless author is nil. So I either use unless @post.author.nil? or add a author_name method that checks for nil as in <% @po
{ MESSAGE = LoginWelcomeBackMessage; SUCCESS = 1; USER =开发者_高级运维 { AcceptAllFriendRequests = 0;
What should I type (in both cases) in my app.config\'s applicationSettings section so that, when I read Settings, I can get the following:
I am trying to suma column in a table, while excluding certain records that have the paid field set to true.
I have a string value read in from a CSV file. The CSV file contains 7 NULL bytes, I have confirmed this by opening it in a hex editor and sure enought there are 7 0x0 bytes in there. This string is c
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