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Observer Design Pattern vs “Listeners”
It seems to me that the Observer design pattern as described in GOF is really the same thing as Listeners found in various toolkits. Is there a difference between the concepts, or are Listeners and Observers really the same thing.
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How to create ENUM type in SQLite?
I need to convert a table from MySQL to SQLite, but I can't figure out how to convert an enum field, because I can't find ENUM type in SQLite.
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Select something that has more/less than x character
Was wondering if it's possible to select something that has more/less than x characters in SQL.
4 Answers
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How to generate service reference with only physical wsdl file
I have been creating and consuming web services for years and always have been able to use Visual Studio to create a service reference from the client. I have a third party service I need to work with and they refuse to open their security so I can see the wsdl and make the service reference. It's a...
How to parse XML to R data frame
I tried to parse XML to R data frame, this link helped me a lot:
4 Answers
4
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Bash script to receive and repass quoted parameters
I'm trying to get quoted parameters of a bash script to safely be received by a nested script. Any ideas?
2 Answers
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Do I need to manually close an ifstream?
Do I need to manually call close() when I use a std::ifstream ?
5 Answers
5
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How to limit UITableView row reordering to a section
I was hitting my head over this one, and google was turning up nothing.
I eventually worked it out and thought I'd write it up here for the sake of the next person.
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Return 0 if field is null in MySQL
In MySQL, is there a way to set the "total" fields to zero if they are NULL?
5 Answers
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SQL query for finding records where count > 1
I have a table named PAYMENT . Within this table I have a user ID, an account number, a ZIP code and a date. I would like to find all records for all users that have more than one payment per day with the same account number.
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