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How to count instances of character in SQL Column
I have an sql column that is a string of 100 'Y' or 'N' characters. For example:
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“Unsafe JavaScript attempt to access frame with URL…” error being continuously generated in Chrome w
... of these "Unsafe JavaScript attempt to access frame with URL..." when working with the Facebook API for example.
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Dynamically Changing log4j log level
What are the different approaches for changing the log4j log level dynamically, so that I will not have to redeploy the application. Will the changes be permanent in those cases?
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Check for installed packages before running install.packages() [duplicate]
...ript that is shared with several users on different computers. One of its lines contains the install.packages("xtable") command.
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JPA and Hibernate - Criteria vs. JPQL or HQL
What are the pros and cons of using Criteria or HQL ? The Criteria API is a nice object-oriented way to express queries in Hibernate, but sometimes Criteria Queries are more difficult to understand/build than HQL.
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SQL Server Operating system error 5: “5(Access is denied.)”
I am starting to learn SQL and I have a book that provides a database to work on. These files below are in the directory but the problem is that when I run the query, it gives me this error:
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How to convert all text to lowercase in Vim
How do you convert all text in Vim to lowercase? Is it even possible?
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How can I split a comma delimited string into an array in PHP?
I need to split my string input into an array at the commas.
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Eliminate extra separators below UITableView
When I set up a table view with 4 rows, there are still extra separators lines (or extra blank cells) below the filled rows.
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Validating URL in Java
I wanted to know if there is any standard APIs in Java to validate a given URL?
I want to check both if the URL string is right i.e. the given protocol is valid and then to check if a connection can be established.
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