大约有 41,000 项符合查询结果（耗时：0.0343秒） [XML]
How do I get textual contents from BLOB in Oracle SQL
...tored in the BLOB, CS of the database used for VARCHAR2) :
select utl_raw.cast_to_varchar2(dbms_lob.substr(BLOB_FIELD)) from TABLE_WITH_BLOB where ID = '<row id>';
share
|
improve this answe...
jQuery Data vs Attr?
...should be preferred.
The .data() method will also perform some basic auto-casting if the value matches a recognized pattern:
HTML:
<a id="foo"
href="#"
data-str="bar"
data-bool="true"
data-num="15"
data-json='{"fizz":["buzz"]}'>foo!</a>
JS:
$('#foo').data('str')...
How can I divide two integers to get a double?
...
You want to cast the numbers:
double num3 = (double)num1/(double)num2;
Note: If any of the arguments in C# is a double, a double divide is used which results in a double. So, the following would work too:
double num3 = (double)num1/n...
How to convert ASCII code (0-255) to its corresponding character?
...not work for the Integer type, you will get a "java.lang.Integer cannot be cast to java.lang.Character" error. Add a cast to int first, e.g.: Character.toString((char)(int)myInteger);
– gbmhunter
Jun 7 '16 at 4:00
...
Fastest way to determine if record exists
... WHERE [YourColumn] = [YourValue])
THEN CAST (1 AS BIT)
ELSE CAST (0 AS BIT) END
This approach returns a boolean for you.
share
|
improve this answe...
How to convert CFStringRef to NSString?
...g and CFStringRef are "Toll free bridged", meaning that you can simply typecast between them.
For example:
CFStringRef aCFString = (CFStringRef)aNSString;
works perfectly and transparently. Likewise:
NSString *aNSString = (NSString *)aCFString;
The previous syntax was for MRC. If you're using...
Division of integers in Java [duplicate]
...st be floating point number
1/10 = 0
1.0/10 = 0.1
1/10.0 = 0.1
Just type cast either of them.
share
|
improve this answer
|
follow
|
...
How to replace a string in a SQL Server Table Column
...
UPDATE CustomReports_Ta
SET vchFilter = REPLACE(CAST(vchFilter AS nvarchar(max)), '\\Ingl-report\Templates', 'C:\Customer_Templates')
where CAST(vchFilter AS nvarchar(max)) LIKE '%\\Ingl-report\Templates%'
Without the CAST function I got an error
Argument data type nte...
Union Vs Concat in Linq
...ave different references, thus they all are considered different. When you cast to base type X, reference is not changed.
If you will override Equals and GetHashCode (used to select distinct items), then items will not be compared by reference:
class X
{
public int ID { get; set; }
public...
C# 'is' operator performance
...
Using is can hurt performance if, once you check the type, you cast to that type. is actually casts the object to the type you are checking so any subsequent casting is redundant.
If you are going to cast anyway, here is a better approach:
ISpecialType t = obj as ISpecialType;
if (t ...