大约有 47,000 项符合查询结果(耗时:0.0361秒) [XML]

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SQL Server insert if not exists best practice

...sert Competitors where doesn't already exist": INSERT Competitors (cName) SELECT DISTINCT Name FROM CompResults cr WHERE NOT EXISTS (SELECT * FROM Competitors c WHERE cr.Name = c.cName) share | ...
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Select + copy text in a TextView?

Is there a way to allow the user to select / copy text in a TextView? I need the same functionality of EditText where you can long-press the control and get the popup options of select all / copy, but I need the control to look like a TextView. ...
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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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Store query result in a variable using in PL/pgSQL

... I think you're looking for SELECT INTO: select test_table.name into name from test_table where id = x; That will pull the name from test_table where id is your function's argument and leave it in the name variable. Don't leave out the table name pre...
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Oracle “Partition By” Keyword

...d then use that in a calculation against this records salary without a sub select, which is much faster. Read the linked AskTom article for further details. share | improve this answer | ...
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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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Rails raw SQL example

... You can do this: sql = "Select * from ... your sql query here" records_array = ActiveRecord::Base.connection.execute(sql) records_array would then be the result of your sql query in an array which you can iterate through. ...
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What's the Linq to SQL equivalent to TOP or LIMIT/OFFSET?

... In VB: from m in MyTable take 10 select m.Foo This assumes that MyTable implements IQueryable. You may have to access that through a DataContext or some other provider. It also assumes that Foo is a column in MyTable that gets mapped to a property name. ...
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How to get the top 10 values in postgresql?

... For this you can use limit select * from scores order by score desc limit 10 If performance is important (when is it not ;-) look for an index on score. Starting with version 8.4, you can also use the standard (SQL:2008) fetch first select * from...
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Convert Month Number to Month Name Function in SQL

... A little hacky but should work: SELECT DATENAME(month, DATEADD(month, @mydate-1, CAST('2008-01-01' AS datetime))) share | improve this answer | ...