大约有 6,000 项符合查询结果（耗时：0.0321秒） [XML]
How to list active / open connections in Oracle?
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For a more complete answer see:
http://dbaforums.org/oracle/index.php?showtopic=16834
select
substr(a.spid,1,9) pid,
substr(b.sid,1,5) sid,
substr(b.serial#,1,5) ser#,
substr(b.machine,1,6) box,
substr(b.username,1,10) username,
-- b.server,
...
Is JavaScript an untyped language?
...r
Strongly typed means there is a compiler, and it wants you an explicit cast from string to integer.
(int) "12345" * 1 === 12345
In either case, some compiler's features can implicitly alter the instruction during compile-time to do conversions for you, if it can determine that is the right th...
How can I use optional parameters in a T-SQL stored procedure?
... = 100
AS
BEGIN
DECLARE @SQL NVARCHAR(4000) = '
SELECT TOP ' + CAST(@TopCount AS VARCHAR) + ' *
FROM Person
WHERE 1 = 1'
PRINT @SQL
IF (@FirstName IS NOT NULL) SET @SQL = @SQL + ' AND FirstName = @FirstName'
IF (@LastName IS NOT NULL) SET @SQL = @SQL + ' AND...
Using Eloquent ORM in Laravel to perform search of database using LIKE
...n code:
/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php
protected $operators = array(
'=', '<', '>', '<=', '>=', '<>', '!=',
'like', 'not like', 'between', 'ilike',
'&', '|', '^', '<<', '>>',
'rlike', 'regexp', 'not regexp',
)...
How would one write object-oriented code in C? [closed]
...; // This is a non-virtual call
Stack.push(st, thing1); // This is like casting *st to a Stack (which it already is) and doing the push
st->my_type.push(st, thing2); // This is a virtual call
}
I didn't do the destructor or delete, but it follows the same pattern.
this_is_here_as_an_exam...
How to use shared memory with Linux in C
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Why are you casting 0 into a void* instead of using NULL ?
– Clément Péau
Mar 28 '17 at 15:45
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Will Dart support the use of existing JavaScript libraries?
...through our issue tracker @ link. I do not believe this decision has been cast in stone yet.
– jtmcdole
Oct 13 '11 at 18:50
1
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python assert with and without parenthesis
...nd the expression is evaluated as a tuple, which is always True when being casted to bool
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JSP tricks to make templating easier?
...eem to make it easy to work with common includes and variables, much like PHP , but I'd like to know a simple way to get something like template inheritance ( Django style) or at least be able to have a base.jsp file containing the header and the footer, so I can insert content later.
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Find the files that have been changed in last 24 hours
...-name option to find specific file types, for instance: find /var -name "*.php" -mtime -1 -ls
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