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What's the difference between UTF-8 and UTF-8 without BOM?
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796
The UTF-8 BOM is a sequence of bytes at the start of a text stream (0xEF, 0xBB, 0xBF) that all...
What does an exclamation mark mean in the Swift language?
...ariable (obtaining the T from Some(T)).
How is john!.apartment = number73 different from john.apartment = number73? (Paraphrased)
If you write the name of an Optional variable (eg text john, without the !), this refers to the "wrapped" enum (Some/None), not the value itself (T). So john isn'...
SQL order string as number
...lt will be decimal.
– juergen d
Sep 7 '16 at 15:11
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show 4 more comments
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How do I quickly rename a MySQL database (change schema name)?
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857
For InnoDB, the following seems to work: create the new empty database, then rename each table i...
What regular expression will match valid international phone numbers?
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\+(9[976]\d|8[987530]\d|6[987]\d|5[90]\d|42\d|3[875]\d|
2[98654321]\d|9[8543210]|8[6421]|6[6543210]|5[87654321]|
4[987654310]|3[9643210]|2[70]|7|1)\d{1,14}$
Is the correct format for matching a generic international phone number....
Android 'Unable to add window — token null is not for an application' exception
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Peter KnegoPeter Knego
78.2k1010 gold badges117117 silver badges145145 bronze badges
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How to change app name per Gradle build type
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173
If by "app name", you mean android:label on <application>, the simplest solution is to ha...
How do you change the datatype of a column in SQL Server?
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573
ALTER TABLE TableName
ALTER COLUMN ColumnName NVARCHAR(200) [NULL | NOT NULL]
EDIT
As noted ...
EntityType has no key defined error
... rebuild!
– RoJaIt
Aug 2 '18 at 12:27
1
Lots of different things can cause this error. In my cas...