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How to parse JSON in Scala using standard Scala classes?
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This is a solution based on extractors which will do the class cast:
class CC[T] { def unapply(a:Any):Option[T] = Some(a.asInstanceOf[T]) }
object M extends CC[Map[String, Any]]
object L extends CC[List[Any]]
object S extends CC[String]
object D extends CC[Double]
object B extends CC[B...
How do I assign an alias to a function name in C++?
...ld_fn_name;
If this function has multiple overloads you should use static_cast:
const auto& new_fn_name = static_cast<OVERLOADED_FN_TYPE>(old_fn_name);
Example: there are two overloads of function std::stoi
int stoi (const string&, size_t*, int);
int stoi (const wstring&, size...
Search for one value in any column of any table inside a database
...e + ''',''' + @ColumnName + ''',' + CASE @ColumnType WHEN 'xml' THEN 'LEFT(CAST(' + @ColumnName + ' AS nvarchar(MAX)), 4096),'''
WHEN 'timestamp' THEN 'master.dbo.fn_varbintohexstr('+ @ColumnName + '),'''
ELSE 'LEFT(' + @ColumnName + ', 4096),''' END + @ColumnType + '''
FROM ' + @TableName + ' (NOLO...
SQL Query to concatenate column values from multiple rows in Oracle
...9 dimension by (seq)
10 measures (descr,cast(null as varchar2(100)) as sentence)
11 ( sentence[any] order by seq desc
12 = descr[cv()] || ' ' || sentence[cv()+1]
13 )
14 )
15 where seq = 1
16 /
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Why covariance and contravariance do not support value type
... collection of three elements, each being a reference to a string. You can cast this to a collection of objects:
IEnumerable<object> objects = (IEnumerable<object>) strings;
Basically it is the same representation except now the references are object references:
[0] : object referen...
C++ convert from 1 char to string? [closed]
I need to cast only 1 char to string . The opposite way is pretty simple like str[0] .
2 Answers
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How to get the first and last date of the current year?
...only attach the year to that day and month for example:-
SELECT '01/01/'+cast(year(getdate()) as varchar(4)) as [First Day],
'12/31/'+cast(year(getdate()) as varchar(4)) as [Last Day]
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im...
Search all tables, all columns for a specific value SQL Server [duplicate]
...e + ''',''' + @ColumnName + ''',' + CASE @ColumnType WHEN 'xml' THEN 'LEFT(CAST(' + @ColumnName + ' AS nvarchar(MAX)), 4096),'''
WHEN 'timestamp' THEN 'master.dbo.fn_varbintohexstr('+ @ColumnName + '),'''
ELSE 'LEFT(' + @ColumnName + ', 4096),''' END + @ColumnType + '''
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PHP: Count a stdClass object
...(unless it's a custom object that implements the Countable interface). Try casting the object, like below, as an array and seeing if that helps.
$total = count((array)$obj);
Simply casting an object as an array won't always work but being a simple stdClass object it should get the job done here.
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Convert INT to VARCHAR SQL
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You can use CAST function:
SELECT CAST(your_column_name AS varchar(10)) FROM your_table_name
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