大约有 43,000 项符合查询结果（耗时：0.0336秒） [XML]
How can I match on an attribute that contains a certain string?
...ssname listed.
The usual approach is the rather unwieldy:
//*[contains(concat(' ', @class, ' '), ' atag ')]
this works as long as classes are separated by spaces only, and not other forms of whitespace. This is almost always the case. If it might not be, you have to make it more unwieldy still...
Can you create nested WITH clauses for Common Table Expressions?
...paths AS (
SELECT
EmployeeID,
CONVERT(VARCHAR(900), CONCAT('.', EmployeeID, '.')) AS FullPath
FROM EmployeeHierarchyWide
WHERE ManagerID IS NULL
UNION ALL
SELECT
ehw.EmployeeID,
CONVERT(VARCHAR(900), CONCAT(p.FullPath, ehw.EmployeeID, '.')...
Find and Replace text in the entire table using a MySQL query
...lace = "replace_with_this_text";
$loop = mysql_query("
SELECT
concat('UPDATE ',table_schema,'.',table_name, ' SET ',column_name, '=replace(',column_name,', ''{$find}'', ''{$replace}'');') AS s
FROM
information_schema.columns
WHERE
table_schema = '{$database}'")
o...
Easy way to convert Iterable to Collection
...of appending a source Collection with another element. I can use Iterables.concat() but that gives an Iterable, not a Collection :(
– Hendy Irawan
May 10 '14 at 11:53
1
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Adding values to a C# array
...
Using Linq's method Concat makes this simple
int[] array = new int[] { 3, 4 };
array = array.Concat(new int[] { 2 }).ToArray();
result
3,4,2
share
|
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How to insert a character in a string at a certain position?
...
There is no loop, it's a simple concatenation case and compiler should optimize it using a string builder, for readability I prefer to use the + operator, there is no need in this case to use StringBuilder explicitly. Using "StringBuilder" solution because ...
MySQL LIKE IN()?
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To get the regexp value from a column: (select group_concat(myColumn separator '|') from..)
– daVe
Nov 28 '15 at 1:05
5
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Install dependencies globally and locally using package.json
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@CMCDragonkai concat them with &&, for instance npm install -g bower && npm install -g grunt-cli
– Matsemann
Dec 17 '13 at 12:07
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Max or Default?
...f it is actually the minimum. To determine which option is more efficient (Concat, FirstOrDefault or Take(1)), you should perform adequate benchmarking.
double x = context.MyTable
.Where(y => y.MyField == value)
.Select(y => y.MyCounter)
.Concat(new double[]{Double.MinValue})
...
Show constraints on tables command
...e_name = 'my_table'
Or for better formatted output use this:
select
concat(table_name, '.', column_name) as 'foreign key',
concat(referenced_table_name, '.', referenced_column_name) as 'references'
from
information_schema.key_column_usage
where
referenced_table_name is not null
...