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MySQL root password change

... to reset my MySQL root password. I have run the mysqld_safe --skip-grant-tables, updated the root password, and checked the user table to make sure it is there. Once restarting the mysql daemon I tried logging in with the new root password that I just set and still get Access denied for user 'roo...
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UIRefreshControl - beginRefreshing not working when UITableViewController is inside UINavigationCont

I've setup a UIRefreshControl in my UITableViewController (which is inside a UINavigationController) and it works as expected (i.e. pull down fires the correct event). However, if I programmatically invoke the beginRefreshing instance method on the refresh control like: ...
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Practical uses of different data structures [closed]

...ound the list in a similar question, previously on StackOverflow: Hash Table - used for fast data lookup - symbol table for compilers, database indexing, caches,Unique data representation. Trie - dictionary, such as one found on a mobile telephone for autocompletion and spell-checking. ...
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What is the syntax for an inner join in LINQ to SQL?

... It goes something like: from t1 in db.Table1 join t2 in db.Table2 on t1.field equals t2.field select new { t1.field2, t2.field3} It would be nice to have sensible names and fields for your tables for a better example. :) Update I think for your query this mig...
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Row count with PDO

... $sql = "SELECT count(*) FROM `table` WHERE foo = ?"; $result = $con->prepare($sql); $result->execute([$bar]); $number_of_rows = $result->fetchColumn(); Not the most elegant way to do it, plus it involves an extra query. PDO has PDOStatemen...
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JPA : How to convert a native query result set to POJO class collection

...r instance: Query query = em.createNativeQuery("SELECT name,age FROM jedi_table", Jedi.class); @SuppressWarnings("unchecked") List<Jedi> items = (List<Jedi>) query.getResultList(); But in this case, Jedi, must be a mapped entity class. An alternative to avoid the unchecked warning he...
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How to report an error from a SQL Server user-defined function

... For an inline-table-valued-function where the RETURN is a simple select, this alone doesn't work because nothing is returned - not even null, and in my case I wanted to throw an error when nothing was found. I didn't want to break down th...
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What, exactly, is needed for “margin: 0 auto;” to work?

...y head: The element must be block-level, e.g. display: block or display: table The element must not float The element must not have a fixed or absolute position1 Off the top of other people's heads: The element must have a width that is not auto2 Note that all of these conditions must be tru...
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When do I need to use Begin / End Blocks and the Go keyword in SQL Server?

... GO is like the end of a script. You could have multiple CREATE TABLE statements, separated by GO. It's a way of isolating one part of the script from another, but submitting it all in one block. BEGIN and END are just like { and } in C/++/#, Java, etc. They bound a logical block of ...
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How to use Servlets and Ajax?

...gt; as JSON Here's an example which displays List<Product> in a <table> where the Product class has the properties Long id, String name and BigDecimal price. The servlet: @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, I...