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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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Preventing Laravel adding multiple records to a pivot table
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You can check the presence of an existing record by writing a very simple condition like this one :
if (! $cart->items->contains($newItem->id)) {
$cart->items()->save($newItem);
}
Or/and you can add unicity condition in your database, it would throw an...
Hibernate: “Field 'id' doesn't have a default value”
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In many cases this problem can also be resolved by just dropping the offending table (or tables), assuming that Hibernate is set up to automatically create/manage the DB schema. To drop tables from a managed schema, SET foreign_key_checks = 0; is your friend. Just be sur...
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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In Git, how can I write the current commit hash to a file in the same commit
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Could someone further expound with a step by step on how to do this? Or at least a nudge in the right direction?
– Joel Worsham
Dec 1 '14 at 15:52
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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...
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 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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Querying DynamoDB by date
...in to find the data.
You can of course perform a scan operation to filter by the date value, however this would require a full table scan, so it is not ideal.
If you need to perform an indexed lookup of records by time across multiple primary keys, DynamoDB might not be the ideal service for you t...