delete t1 from some_table t1 join some_table t2 on t2.a3 = t1.a3 and t2.a4 > t1.a4; Demo: http://rextester.com/RERGD32491 This will only keep rows with the highest value in A4 per A3. It’s possible that two rows with the same value in A3 have the same highest value in A4. Since you didn’t specify what to … Read more
If the key argument is in switcher, the .get() method returns the value for the key. If the key is not in the dictionary, the method returns the optional “nothing”. def numbers_to_strings(argument): switcher = {0: “zero”, 1: “one”, 2: “two”} return switcher.get(argument, “nothing”) Calling the above function with a key that is in the dictionary: … Read more
You could use HTML5 form validation. Simply make the field required and give it a pattern. No JS required (although you might choose a polyfill for old browsers). Try and submit this form without matching the pattern: <form> <input name=”myInput” required=”required” placeholder=”Must contain Mickey” pattern=”.*Mickey.*” title=”It must contain Mickey somewhere.” /> <input type=”submit” /> </form> … Read more
You are passing two arguments as String type, “20”, “10”: int myBmi = myBmiCal(“20”, “10”); But it should be int type: int myBmi = myBmiCal(20, 10); “” – it means just empty String in Java. “20” – it means String with value 20. “20” and 20 are different types in Java. Here is documentation to … Read more
fiddle In order to make this work I did a couple of things:- 1 CSS .child { width: 40px; height: 40px; display: block; //inline block results in jerkiness when inserting items margin:2px; //added margin to compensate for inline-block becoming block. border: 1px solid #AAAAAA; } 2 JS setTimeout(function(){ var newbox = “<div class=”child animated bounceInDown”></div>” … Read more
A newly created thread has no affinity, and will be shuffled around the process as deemed best by the system. If you need to pin it to a specific core, this answer provides details for setting affinity to a specific pthread. 1 solved Are pthread.h threads running in just one core
It is keeping the same state because you are using the same shared preference for both checkboxes. Also you can use only one editor public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final CheckBox checkBox = (CheckBox) findViewById(R.id.checkBox); final CheckBox checkBox2 = (CheckBox) findViewById(R.id.checkBox2); SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this); final … Read more
You could use getElementById in case you have multipe nested images in different id’s. Then you could use getElementsByTagName to get the image elements and loop those using a for loop and storing the src in an array urls. var elms = document.getElementById(‘content’).getElementsByTagName(‘img’); var urls = []; for (var i = 0; i < elms.length; … Read more
I didn’t read your problem definition but your code sould be at least like this to be correct as syntax and logic: #include<stdio.h> float totalFee = 0; int hours = 0; int main(void) { int i; int b; printf(“Please Enter Number of Cars “); scanf(“%d”, &i); for (b = 0; b < i; b++) { … Read more
Try this, this will do. SELECT a.id, a.close FROM ( SELECT id, close FROM `orders` ORDER BY close DESC ) AS a GROUP BY DATE(a.close) ORDER BY a.id ASC; 1 solved MYSQL request | GROUP BY DAY [closed]
Ok so I have been testing things out lately to see how can I use a single method to change the values for int mana and health. I do not know if this is the right way to do it, but its working very well in my case. For those who maybe are looking for … Read more
First, you declared Consumer as a chan of interface{ /* methods */ }, which most surely isn’t what you want — as a matter of fact, the error tells that you can’t assign IntChannel to it. Then, until generics are added to the language, you don’t have a way to preserve type safety. The closest … Read more
Quoting shamelessly from the C11 spec, chapter §5.1.2.2.1, (emphasis mine) — The value of argc shall be non-negative. — argv[argc] shall be a null pointer. — If the value of argc is greater than zero, the array members argv[0]through argv[argc-1] inclusive shall contain pointers to strings, which are given implementation-defined values by the host environment … Read more
You can pass a comparer to GroupBy, in this case you can use an existing: .GroupBy(x =>x.Function, StringComparer.OrdinalIgnoreCase); 2 solved How to group by ToLower()? [duplicate]
string.Format(“[{0}]”, string.Join(“,”, array.Select(i => “{” + i.ToString() + “}”))); solved How to build an array of objects and then convert the whole array to an string [closed]