大约有 30,000 项符合查询结果（耗时：0.0443秒） [XML]
DISTINCT for only one column
... Server 2005 or above use this:
SELECT *
FROM (
SELECT ID,
Email,
ProductName,
ProductModel,
ROW_NUMBER() OVER(PARTITION BY Email ORDER BY ID DESC) rn
FROM Produ...
Pass Multiple Parameters to jQuery ajax call
...
Don't use string concatenation to pass parameters, just use a data hash:
$.ajax({
type: 'POST',
url: 'popup.aspx/GetJewellerAssets',
contentType: 'application/json; charset=utf-8',
data: { jewellerId: filter, locale: '...
How do I find a default constraint using INFORMATION_SCHEMA?
...l_columns
INNER JOIN
sys.tables
ON all_columns.object_id = tables.object_id
INNER JOIN
sys.schemas
ON tables.schema_id = schemas.schema_id
INNER JOIN
sys.default_constraints
ON all_columns.default_object_id = default_constraints.object_...
Select last row in MySQL
...last of all the rows in the table, then this is finally the time where MAX(id) is the right answer! Kind of:
SELECT fields FROM table ORDER BY id DESC LIMIT 1;
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...
How to extract epoch from LocalDate and LocalDateTime?
...01:00:00").getTime() / 1000;
Convert from epoch to human readable date:
String date = new java.text.SimpleDateFormat("MM/dd/yyyyHH:mm:ss").format(new java.util.Date (epoch*1000));
For other language converter:
https://www.epochconverter.com
...
Difference between StringBuilder and StringBuffer
What is the main difference between StringBuffer and StringBuilder ?
Is there any performance issues when deciding on any one of these?
...
Case statement with multiple values in each 'when' block
...on happens: When I write this: when "toyota", "lexus", I get: unexpected tSTRING_BEG, expecting keyword_do or '{' or '(' (SyntaxError). However, when I write this: when "toyota","lexus", it works. The only difference is a space after comma.
– Furkan Ayhan
N...
How do I find files that do not contain a given string pattern?
How do I find out the files in the current directory which do not contain the word foo (using grep )?
16 Answers
...
How to return a result (startActivityForResult) from a TabHost Activity?
...ode == RESULT_OK) {
Bundle res = data.getExtras();
String result = res.getString("param_result");
Log.d("FIRST", "result:"+result);
}
break;
}
}
private void finishWithResult()
{
Bundle conData = new Bundle();
conData.putString("param_...
Best way to find the intersection of multiple sets?
...lving reduce. It can in general be used quite nicely to build lists, sets, strings etc. Worth a look also is github.com/EntilZha/PyFunctional
– Andreas
Nov 16 '16 at 6:03
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