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Catch multiple exceptions in one line (except block)
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From Python documentation -> 8.3 Handling Exceptions:
A try statement may have more than one except clause, to specify
handlers for different exceptions. At most one handler will be
executed. Handlers only handle exceptions that occur in the
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Does Foreign Key improve query performance?
... tables and the result was a 90% reduction in loadtime. Queries that took >5s now take 500ms or less.
That is an ENORMOUS improvement!
AND, as others have mentioned, you get the added bonus of ensuring relational integrity.
Beyond this, ensuring referential integrity has it's own performan...
When restoring a backup, how do I disconnect all active connections?
...from master.dbo.sysprocesses
where dbid = db_id(@dbname) and spid > @spid
End
after this I was able to restore it
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@Nullable annotation usage
...lso throw some exception in there by swapping .orElse to
orElseThrow(() -> new Exception("Dont' send a null")).
If you don't want to use @Nullable, which adds nothing functionally, why not just name the parameter with mayBe... so your intention is clear.
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Multi-project test dependencies with gradle
...new project in Gradle. In your example, I would name it
Project A_Test
-> src/main/java
I would put into the src/main/java the files that you currently have in Project A/src/test/java. Make any testCompile dependencies of your Project A compile dependencies of Project A_Test.
Then make Proje...
UITextField - capture return button event
...extFieldDelegate :
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
resignFirstResponder()
return false
}
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Undo VS 'Exclude from project'?
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In the absence of an actual undo option you could select Add > Existing Item... to re-add the item you've just excluded.
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SQL Query to concatenate column values from multiple rows in Oracle
...catanate very long strings which LISTAGG may not because of their final length.
– Marco
Sep 1 '19 at 13:32
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Add characters to a string in Javascript
... = "Hello ";
myString += "World";
myString += "!";
the result would be -> Hello World!
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get and set in TypeScript
... get name() {
return this._name;
}
// first checks the length of the name and then updates the name.
set name(name: string) {
if (name.length > 10) {
throw new Error("Name has a max length of 10");
}
this._name = name;
}
doStuff...