大约有 47,000 项符合查询结果(耗时:0.0194秒) [XML]

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INSERT INTO…SELECT for all MySQL columns

... manual. Try this: INSERT INTO this_table_archive (col1, col2, ..., coln) SELECT col1, col2, ..., coln FROM this_table WHERE entry_date < '2011-01-01 00:00:00'; If the id columns is an auto-increment column and you already have some data in both tables then in some cases you may want to omit t...
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MFC CListCtrl使用方法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术

...DWORD dwStyle = m_list.GetExtendedStyle(); dwStyle |= LVS_EX_FULLROWSELECT;//选中某行使整行高亮(只适用与report风格的listctrl) dwStyle |= LVS_EX_GRIDLINES;//网格线(只适用与report风格的listctrl) dwStyle |= LVS_EX_CHECKBOXES;//item前生成checkbox...
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Number of rows affected by an UPDATE in PL/SQL

... block, this can be achieved. ... If anyone has a solution to use it in a SELECT Command, I would be interested. share | improve this answer | follow | ...
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Get top 1 row of each group

... ;WITH cte AS ( SELECT *, ROW_NUMBER() OVER (PARTITION BY DocumentID ORDER BY DateCreated DESC) AS rn FROM DocumentStatusLogs ) SELECT * FROM cte WHERE rn = 1 If you expect 2 entries per day, then this will arbitrarily pick one...
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Visual Studio : short cut Key : Duplicate Line

...ure is now built-in in VS2017: Ctrl + E, V duplicates a line if nothing is selected, or duplicates selection. You can assign it to a different key combination, or find it in the menu: See this reference for more information. Pre VS2017, built-in method using clipboard As @cand mentioned, you ca...
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Delete duplicate records in SQL Server?

...r the dupes by empId, and delete all but the first one. delete x from ( select *, rn=row_number() over (partition by EmployeeName order by empId) from Employee ) x where rn > 1; Run it as a select to see what would be deleted: select * from ( select *, rn=row_number() over (partition b...
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How to change the href for a hyperlink using jQuery

...l hyperlinks to point to Google. You probably want a somewhat more refined selector though. For instance, if you have a mix of link source (hyperlink) and link target (a.k.a. "anchor") anchor tags: <a name="MyLinks"></a> <a href="http://www.codeproject.com/">The CodeProject</a&...
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Get top n records for each group of grouped results

...ould need to specify the group number and add queries for each group: ( select * from mytable where `group` = 1 order by age desc LIMIT 2 ) UNION ALL ( select * from mytable where `group` = 2 order by age desc LIMIT 2 ) There are a variety of ways to do this, see this articl...
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SQL Switch/Case in 'where' clause

... declare @locationType varchar(50); declare @locationID int; SELECT column1, column2 FROM viewWhatever WHERE @locationID = CASE @locationType WHEN 'location' THEN account_location WHEN 'area' THEN xxx_location_area WHEN 'division' THEN xxx_location_division END...
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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. ...