大约有 2,253 项符合查询结果（耗时：0.0300秒） [XML]
FIND_IN_SET() vs IN()
...ID IN (attachedCompanyIDs)
attachedCompanyIDs is a scalar value which is cast into INT (type of companyID).
The cast only returns numbers up to the first non-digit (a comma in your case).
Thus,
companyID IN ('1,2,3') ≡ companyID IN (CAST('1,2,3' AS INT)) ≡ companyID IN (1)
In PostgreSQL, ...
How do I convert an integer to string as part of a PostgreSQL query?
...
Because the number can be up to 15 digits, you'll meed to cast to an 64 bit (8-byte) integer. Try this:
SELECT * FROM table
WHERE myint = mytext::int8
The :: cast operator is historical but convenient. Postgres also conforms to the SQL standard syntax
myint = cast ( mytext as i...
How to serialize a lambda?
...
Java 8 introduces the possibility to cast an object to an intersection of types by adding multiple bounds. In the case of serialization, it is therefore possible to write:
Runnable r = (Runnable & Serializable)() -> System.out.println("Serializable!");
...
Convert character to ASCII numeric value in java
...
Very simple. Just cast your char as an int.
char character = 'a';
int ascii = (int) character;
In your case, you need to get the specific Character from the String first and then cast it.
char character = name.charAt(0); // This gives...
alternatives to REPLACE on a text or ntext datatype
...SQL Server 2000:
UPDATE [CMS_DB_test].[dbo].[cms_HtmlText]
SET Content = CAST(REPLACE(CAST(Content as NVarchar(4000)),'ABC','DEF') AS NText)
WHERE Content LIKE '%ABC%'
For SQL Server 2005+:
UPDATE [CMS_DB_test].[dbo].[cms_HtmlText]
SET Content = CAST(REPLACE(CAST(Content as NVarchar(MAX)),'AB...
Compare two objects' properties to find differences?
...2 are of different Types (both being derived from Type T)
/// we will cast both objects down to the base Type T to ensure the property comparison is only
/// completed on COMMON properties.
/// (ex. Type T is Foo, object1 is GoodFoo and object2 is BadFoo -- both being inherited from Fo...
How to report an error from a SQL Server user-defined function
...
You can use CAST to throw meaningful error:
create function dbo.throwError()
returns nvarchar(max)
as
begin
return cast('Error happened here.' as int);
end
Then Sql Server will show some help information:
Msg 245, Level 16, State...
What's the difference between std::move and std::forward
...a new value and continue using it.
std::forward has a single use case: to cast a templated function parameter (inside the function) to the value category (lvalue or rvalue) the caller used to pass it. This allows rvalue arguments to be passed on as rvalues, and lvalues to be passed on as lvalues, a...
Alternative to itoa() for converting integer to string C++? [duplicate]
...
boost::lexical_cast works pretty well.
#include <boost/lexical_cast.hpp>
int main(int argc, char** argv) {
std::string foo = boost::lexical_cast<std::string>(argc);
}
...
Is it possible to print a variable's type in standard C++?
...ecltype((ci))>() << '\n';
std::cout << "decltype(static_cast<int&>(i)) is " << type_name<decltype(static_cast<int&>(i))>() << '\n';
std::cout << "decltype(static_cast<int&&>(i)) is " << type_name<decltype(stati...