大约有 46,000 项符合查询结果(耗时:0.0406秒) [XML]

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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...
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How to parse JSON in Scala using standard Scala classes?

... 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...
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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...
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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...
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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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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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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] share | im...
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Convert INT to VARCHAR SQL

... You can use CAST function: SELECT CAST(your_column_name AS varchar(10)) FROM your_table_name share | improve this answer | ...