大约有 43,000 项符合查询结果(耗时:0.0355秒) [XML]

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How to get everything after a certain character?

...+ 1); echo $whatIWant; If you also want to check if the underscore character (_) exists in your string before trying to get it, you can use the following: if (($pos = strpos($data, "_")) !== FALSE) { $whatIWant = substr($data, $pos+1); } ...
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Check if table exists without using “select from”

Is there a way to check if a table exists without selecting and checking values from it? 17 Answers ...
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Return a value if no rows are found in Microsoft tSQL

... SELECT CASE WHEN COUNT(1) > 0 THEN 1 ELSE 0 END AS [Value] FROM Sites S WHERE S.Id = @SiteId and S.Status = 1 AND (S.WebUserId = @WebUserId OR S.AllowUploads = 1) ...
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How to generate a random string in Ruby

I'm currently generating an 8-character pseudo-random uppercase string for "A" .. "Z": 50 Answers ...
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How can I select multiple columns from a subquery (in SQL Server) that should have one record (selec

I Know I can select a column from a subquery using this syntax: 5 Answers 5 ...
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Set selected option of select box

I want to set a option that was selected previously to be displayed on page load. I tried it with the following code: 16 An...
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How to select the nth row in a SQL database table?

I'm interested in learning some (ideally) database agnostic ways of selecting the n th row from a database table. It would also be interesting to see how this can be achieved using the native functionality of the following databases: ...
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With MySQL, how can I generate a column containing the record index in a table?

... You may want to try the following: SELECT l.position, l.username, l.score, @curRow := @curRow + 1 AS row_number FROM league_girl l JOIN (SELECT @curRow := 0) r; The JOIN (SELECT @curRow := 0) part allows the variable initiali...
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SQL Server SELECT into existing table

I am trying to select some fields from one table and insert them into an existing table from a stored procedure. Here is what I am trying: ...
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What is the best way to test for an empty string in Go?

...tever, since len() has to execute to completion. – Richard Apr 30 '18 at 11:25 Have you looked at the code generation ...