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MySQL/SQL: Group by date only on a Datetime column

...GROUP BY DATE(a_table.mydate); Or you can GROUP BY the alias as @orlandu63 suggested: SELECT SUM(foo), DATE(mydate) DateOnly FROM a_table GROUP BY DateOnly; Though I don't think it'll make any difference to performance, it is a little clearer. ...
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What's the difference between Unicode and UTF-8? [duplicate]

... | edited Oct 12 '12 at 23:38 hannson 4,18666 gold badges3434 silver badges4444 bronze badges answered ...
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Run an OLS regression with Pandas Data Frame

... statsmodels.formula.api as sm >>> df = pd.DataFrame({"A": [10,20,30,40,50], "B": [20, 30, 10, 40, 50], "C": [32, 234, 23, 23, 42523]}) >>> result = sm.ols(formula="A ~ B + C", data=df).fit() >>> print(result.params) Intercept 14.952480 B 0.401182 C ...
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How do I check for a network connection?

... 153 You can check for a network connection in .NET 2.0 using GetIsNetworkAvailable(): System.Net.Ne...
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Reading file contents on the client-side in javascript in various browsers

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Import CSV to SQLite

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Height equal to dynamic width (CSS fluid layout) [duplicate]

... HusseinHussein 39.9k2424 gold badges108108 silver badges139139 bronze badges ...
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TypeError: Cannot read property 'then' of undefined

... 133 You need to return your promise to the calling function. islogged:function(){ var cUid=ses...
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Why does make think the target is up to date?

... | edited May 30 '12 at 6:43 answered Oct 14 '10 at 9:30 ...
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Can you add new statements to Python's syntax?

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