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How to check if a Constraint exists in Sql server?

... try this: SELECT * FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS WHERE CONSTRAINT_NAME ='FK_ChannelPlayerSkins_Channels' -- EDIT -- When I originally answered this question, I was thinking "Foreign Key" because the original question asked ...
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Is there a MySQL option/feature to track history of changes to records?

I've been asked if I can keep track of the changes to the records in a MySQL database. So when a field has been changed, the old vs new is available and the date this took place. Is there a feature or common technique to do this? ...
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Should I make HTML Anchors with 'name' or 'id'?

... According to the HTML 5 specification, 5.9.8 Navigating to a fragment identifier: For HTML documents (and the text/html MIME type), the following processing model must be followed to determine what the indicated part of the doc...
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How to extract the decision rules from scikit-learn decision-tree?

Can I extract the underlying decision-rules (or 'decision paths') from a trained tree in a decision tree as a textual list? ...
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Handling a Menu Item Click Event - Android

I want to create an intent that starts a new activity once a Menu Item is clicked, but I'm not sure how to do this. I've been reading through the android documentation, but my implementation isn't correct..and some guidance in the right direction would help. I've listed my code below and commented o...
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How to implement the activity stream in a social network

I'm developing my own social network, and I haven't found on the web examples of implementation the stream of users' actions... For example, how to filter actions for each users? How to store the action events? Which data model and object model can I use for the actions stream and for the actions it...
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Changing an element's ID with jQuery

I need to change an element's ID using jQuery. 8 Answers 8 ...
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Check if key exists and iterate the JSON array using Python

... import json jsonData = """{"from": {"id": "8", "name": "Mary Pinter"}, "message": "How ARE you?", "comments": {"count": 0}, "updated_time": "2012-05-01", "created_time": "2012-05-01", "to": {"data": [{"id": "1543", "name": "Honey Pinter"}]}, "type": "status", "id": "id_7"}""" def getTa...
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Get value when selected ng-option changes

I have in my .html page a dropdown list, 10 Answers 10 ...
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How to use JavaScript variables in jQuery selectors?

How do I use JavaScript variables as a parameter in a jQuery selector? 6 Answers 6 ...