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How do you create a random string that's suitable for a session ID in PostgreSQL?

...sion verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this? ...
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Delete terminal history in Linux [closed]

When you use the up key in a Linux terminal, you can use previous commands again. Great feature. However, I started logging mysql into mysql with the sensitive details in the command. ...
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-didSelectRowAtIndexPath: not being called

...de a tab view. In my UITableViewController , I implemented -tableView:didSelectRowAtIndexPath: , but when I select a row at runtime, the method isn't being called. The table view is being populated though, so I know that other tableView methods in my controller are being called. ...
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MySQL Select all columns from one table and some from another table

How do you select all the columns from one table and just some columns from another table using JOIN? In MySQL. 4 Answers ...
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How can prepared statements protect from SQL injection attacks?

...ample shows it (all examples in PHP/Mysql): $expected_data = 1; $query = "SELECT * FROM users where id=$expected_data"; will produce a regular query SELECT * FROM users where id=1 while this code $spoiled_data = "1; DROP TABLE users;" $query = "SELECT * FROM users where id=$spoiled_da...
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ng-options with simple array init

... You actually had it correct in your third attempt. <select ng-model="myselect" ng-options="o as o for o in options"></select> See a working example here: http://plnkr.co/edit/xEERH2zDQ5mPXt9qCl6k?p=preview The trick is that AngularJS writes the keys as numbers from...
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How can I use the $index inside a ng-repeat to enable a class and show a DIV?

... The issue here is that ng-repeat creates its own scope, so when you do selected=$index it creates a new a selected property in that scope rather than altering the existing one. To fix this you have two options: Change the selected property to a non-primitive (ie object or array, which makes jav...
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How to get a float result by dividing two integer values using T-SQL?

...s or parameters which are integers, you can cast them to be floats first: SELECT CAST(1 AS float) / CAST(3 AS float) or SELECT CAST(MyIntField1 AS float) / CAST(MyIntField2 AS float) share | i...
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How do I UPDATE from a SELECT in SQL Server?

... SQL Server , it is possible to insert rows into a table with an INSERT.. SELECT statement: 35 Answers ...
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Apache not starting on MAMP Pro

Apache wont start and it throws an error: 2 Answers 2 ...