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MySql Table Insert if not exist otherwise update
... It might be needed to create UNIQUE constraint for Timestamp by using ALTER TABLE AggregatedData ADD UNIQUE (Timestamp)
– Avyakt
Jan 19 '15 at 19:13
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IN clause and placeholders
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Caused by: android.database.sqlite.SQLiteException: near ",": syntax error (code 1): , while compiling: SELECT url FROM tasks WHERE url=?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,...
How to select/get drop down option in Selenium 2
... option based on the label:
Select select = new Select(driver.findElement(By.xpath("//path_to_drop_down")));
select.deselectAll();
select.selectByVisibleText("Value1");
To get the first selected value:
WebElement option = select.getFirstSelectedOption()
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In SQL, what's the difference between count(column) and count(*)?
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@tsilb: The answer posted by @Alan states "count(*) is computed by looking at the indexes on the table in question rather than the actual data rows" which, if true, invalidates your comment. I appreciate that @Alan may be wrong but I'm interested in t...
Want to find records with no associated records in Rails
...u'd want to normalize out the data and index in that case. I might do that by creating a friend_ids hstore or serialized column. Then you could say Person.where(friend_ids: nil)
– Unixmonkey
Dec 20 '16 at 16:02
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Setting background colour of Android layout element
...is somewhat lacking when it comes to some features. I think I picked it up by accident in some external tutorials. Usually it's a good idea to browse the api samples and sample projects though. You can find the code inside the ANDROID_SDK\samples folder (for various android versions). The whole api ...
Yii2 data provider default sorting
... works but the search in index doesn't work now.
– Roby Sottini
Nov 16 '17 at 12:14
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How to persist a property of type List in JPA?
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Will it work with jpa repositories for filtering results by content of that field?
– Please_Dont_Bully_Me_SO_Lords
Mar 1 '19 at 5:41
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SQL WHERE.. IN clause multiple columns
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@sleske: EXISTS is by far better: see my comments in my answer. And test it first,. @mrdenny: I misread your answer at first, I'd use EXISTS too
– gbn
Jul 16 '09 at 8:17
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jQuery how to bind onclick event to dynamically added HTML element [duplicate]
... Indeed, when you are targeting known markup structures created by some other code. But here he was inserting the elements himself, and there is no clear selector for them (it's just an anchor, which there might be many of), so he would have to add additional markup to be able to target t...