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What are the best practices for SQLite on Android?
... new AtomicInteger(0);
public DBSQLiteOpenHelper(Context context, String name, int version, DatabaseManager databaseManager) {
super(context, name, null, version);
this.databaseManager = databaseManager;
}
public void addConnection(){
cou...
Difference Between One-to-Many, Many-to-One and Many-to-Many?
... @Id
@GeneratedValue
private Long id;
private String review;
@ManyToOne(fetch = FetchType.LAZY)
private Post post;
}
Using the JPA @OneToMany annotation
Just because you have the option of using the @OneToMany annotation, it does not me...
How using try catch for exception handling is best practice
...e
try
{
...
}
catch(Exception ex)
{
throw new ApplicationException(string.Format("I cannot write the file {0} to {1}", fileName, directoryName), ex);
}
There is a lot to do with exception handling (Custom Exceptions) but thoses rules I try to keep in mind are enough for the simple applicat...
Any way to replace characters on Swift String?
I am looking for a way to replace characters in a Swift String .
21 Answers
21
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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=
...
It is also possible to add COLLATE utf8_unicode_ci to string constants: SET @EMAIL = 'abc@def.com' COLLATE utf8_unicode_ci;. It is especially useful if you are running a script from a console, where the console default encoding applies to your string constants' collation.
...
What are major differences between C# and Java?
...t of the language syntax.
• C# allows switch statements to operate on strings.
• C# allows anonymous methods providing closure functionality.
• C# allows iterator that employs co-routines via a functional-style yield keyword.
• C# has support for output parameters, aiding in the ...
How can strings be concatenated?
How to concatenate strings in python?
7 Answers
7
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Python: Using .format() on a Unicode-escaped string
...
Just make the second string also a unicode string
>>> s = u'\u2265'
>>> print s
≥
>>> print "{0}".format(s)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeEncodeError: 'as...
What is C# analog of C++ std::pair?
...
Tuples are available since .NET4.0 and support generics:
Tuple<string, int> t = new Tuple<string, int>("Hello", 4);
In previous versions you can use System.Collections.Generic.KeyValuePair<K, V> or a solution like the following:
public class Pair<T, U> {
pub...
Convert list to dictionary using linq and not worrying about duplicates
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Or create the dictionary with a StringComparer that will ignore the case, if thats what you need, then your adding/checking code doesn't care if you're ignoring case or not.
– Binary Worrier
Jul 23 '10 at 15:06
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