大约有 47,000 项符合查询结果(耗时:0.0292秒) [XML]

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Using LIMIT within GROUP BY to get N results per group?

...to get all years into a single column, grouped by id and ordered by rate: SELECT id, GROUP_CONCAT(year ORDER BY rate DESC) grouped_year FROM yourtable GROUP BY id Result: ----------------------------------------------------------- | ID | GROUPED_YEAR |...
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Clear form field after select for jQuery UI Autocomplete

I'm developing a form, and using jQuery UI Autocomplete. When the user selects an option, I want the selection to pop into a span appended to the parent <p> tag. Then I want the field to clear rather than be populated with the selection. ...
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Get cursor position (in characters) within a text Input field

... Easier update: Use field.selectionStart example in this answer. Thanks to @commonSenseCode for pointing this out. Old answer: Found this solution. Not jquery based but there is no problem to integrate it to jquery: /* ** Returns the caret (curs...
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Adding additional data to select options using jQuery

... HTML Markup <select id="select"> <option value="1" data-foo="dogs">this</option> <option value="2" data-foo="cats">that</option> <option value="3" data-foo="gerbils">other</option> </select&...
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How to round an average to 2 decimal places in PostgreSQL?

... round that takes a precision is only available for numeric. regress=> SELECT round( float8 '3.1415927', 2 ); ERROR: function round(double precision, integer) does not exist regress=> \df *round* List of functions Schema | Name | Result data type | Argument...
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'IF' in 'SELECT' statement - choose output value based on column values

... SELECT id, IF(type = 'P', amount, amount * -1) as amount FROM report See http://dev.mysql.com/doc/refman/5.0/en/control-flow-functions.html. Additionally, you could handle when the condition is null. In the case of...
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Split function equivalent in T-SQL?

...AR(2048) = 'Mike/John/Miko/Matt'; DECLARE CaracString NVARCHAR(1) = '/'; SELECT * FROM dbo.FnSplitString (VarString, CaracString) – fernando yevenes Feb 8 '19 at 15:57 ad...
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How do I perform an IF…THEN in an SQL SELECT?

How do I perform an IF...THEN in an SQL SELECT statement? 30 Answers 30 ...
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html select option separator

How do you make a separator in a select tag? 14 Answers 14 ...
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UITableview: How to Disable Selection for Some Rows but Not Others

... able to click it at all) The table contains two groups. I want to disable selection for the first group only but not the second group. Clicking the first row of second group navigates to my tube player view . ...