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How to find duplicates in 2 columns not 1
I have a MySQL database table with two columns that interest me. Individually they can each have duplicates, but they should never have a duplicate of BOTH of them having the same value.
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SQL server query to get the list of columns in a table along with Data types, NOT NULL, and PRIMARY
I need to write a query on SQL server to get the list of columns in a particular table, its associated data types (with length) and if they are not null. And I have managed to do this much.
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Passport.js - Error: failed to serialize user into session
...dn't implement passport.serializeUser and passport.deserializeUser. Try adding this:
passport.serializeUser(function(user, done) {
done(null, user);
});
passport.deserializeUser(function(user, done) {
done(null, user);
});
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Passing an array to a query using a WHERE clause
...array(1,2,5) I want to have a SQL query that uses the values of the array in its WHERE clause like:
18 Answers
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“ArrayAdapter requires the resource ID to be a TextView” xml problems
I am getting an error when trying to set my view to display the ListView for the file I want to display(text file). I am pretty sure it has something to do with the xml. I just want to display the information from this.file = fileop.ReadFileAsList("Installed_packages.txt"); . My code:
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Convert Django Model object to dict with all of the fields intact
...vert a Django Model object to a dict with all of its fields? All ideally includes foreign keys and fields with editable=False .
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What is the difference between shallow copy, deepcopy and normal assignment operation?
I get the following results:
11 Answers
11
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Converting an array of objects to ActiveRecord::Relation
I have an array of objects, let's call it an Indicator . I want to run Indicator class methods (those of the def self.subjects variety, scopes, etc) on this array. The only way I know to run class methods on a group of objects is to have them be an ActiveRecord::Relation. So I end up resorting to...
How to debug Lock wait timeout exceeded on MySQL?
In my production error logs I occasionally see:
11 Answers
11
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ASP.NET MVC passing an ID in an ActionLink to the controller
I can't see to retrieve an ID I'm sending in a html.ActionLink in my controller, here is what I'm trying to do
5 Answers
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