大约有 30,000 项符合查询结果(耗时:0.0341秒) [XML]

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Flask SQLAlche<em>mem>y query, specify colu<em>mem>n na<em>mem>es

How do I specify the colu<em>mem>n that I want in <em>mem>y query using a <em>mem>odel (it selects all colu<em>mem>ns by default)? I know how to do this with the sqlalch<em>mem>ey session: session.query(self.col1) , but how do I do it with with <em>mem>odels? I can't do So<em>mem>e<em>Mem>odel.query() . Is there a way? ...
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Overloaded <em>mem>ethod selection based on the para<em>mem>eter's real type

I'<em>mem> experi<em>mem>enting with this code: 7 Answers 7 ...
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How to ter<em>mem>inate the script in JavaScript?

How can I exit the JavaScript script <em>mem>uch like PHP's exit or die ? I know it's not the best progra<em>mem><em>mem>ing practice but I need to. ...
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How to re<em>mem>ove all callbacks fro<em>mem> a Handler?

I have a Handler fro<em>mem> <em>mem>y sub-Activity that was called by the <em>mem>ain Activity . This Handler is used by sub-classes to postDelay so<em>mem>e Runnables, and I can't <em>mem>anage the<em>mem>. Now, in the onStop event, I need to re<em>mem>ove the<em>mem> before finishing the Activity (so<em>mem>ehow I called finish() , but it still call ...
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How to show all privileges fro<em>mem> a user in oracle?

Can so<em>mem>eone please tell <em>mem>e how to show all privileges/rules fro<em>mem> a specific user in the sql-console? 6 Answers ...
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What does .SD stand for in data.table in R

.SD looks useful but I do not really know what I a<em>mem> doing with it. What does it stand for? Why is there a preceding period (full stop). What is happening when I use it? ...
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How to keep a git branch in sync with <em>mem>aster

At the <em>mem>o<em>mem>ent git is doing <em>mem>y head in, I cannot co<em>mem>e up with the best solution for the following. 6 Answers ...
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Run R script fro<em>mem> co<em>mem><em>mem>and line

I have a file, called a.r , it has a ch<em>mem>od of 755, 7 Answers 7 ...
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Check free disk space for current partition in bash

I a<em>mem> writing an installer in bash. The user will go to the target directory and runs the install script, so the first action should be to check that there is enough space. I know that df will report all file syste<em>mem>s, but I was wondering if there was a way to get the free space just for the partition...
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What is the difference between single and double quotes in SQL?

...g in SQL. Double quotes generally aren't used in SQL, but that can vary fro<em>mem> database to database. Stick to using single quotes. That's the pri<em>mem>ary use anyway. You can use single quotes for a colu<em>mem>n alias — where you want the colu<em>mem>n na<em>mem>e you reference in your application code to be so<em>mem>ething ot...