大约有 13,066 项符合查询结果(耗时:0.0190秒) [XML]
delete_all vs destroy_all?
...r the best approach to delete records from a table. For instance, I have a user whose user ID is across many tables. I want to delete this user and every record that has his ID in all tables.
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What's the difference between the WebConfigurationManager and the ConfigurationManager?
What's the difference between the WebConfigurationManager and the ConfigurationManager ?
4 Answers
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Is there a jQuery unfocus method?
How can I unfocus a textarea or input? I couldn't find a $('#my-textarea').unfocus(); method?
6 Answers
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Store select query's output in one array in postgres
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There are two ways. One is to aggregate:
SELECT array_agg(column_name::TEXT)
FROM information.schema.columns
WHERE table_name = 'aean'
The other is to use an array constructor:
SELECT ARRAY(
SELECT column_name
FROM information.schema.columns
WHERE table_name = 'aean')
I'm presum...
Declaration suffix for decimal type
If I want to use a decimal literal in code, I have seen that there exists the m-suffix (where m stands for money). Is this appropriate for any decimals or is there a more general assignment (d stands for double, that is for sure not the right thing although a direct conversion is supported).
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Can you put two conditions in an xslt test attribute?
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Not quite, the AND has to be lower-case.
<xsl:when test="4 &lt; 5 and 1 &lt; 2">
<!-- do something -->
</xsl:when>
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How to compare two tags with git?
I would like to do a diff between two tags and committed changes between those two tags. Could you please tell me the command?
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Split a string by a delimiter in python
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You can use the str.split function: string.split('__')
>>> "MATCHES__STRING".split("__")
['MATCHES', 'STRING']
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ReferenceError: event is not defined error in Firefox
...orgot to check if it was working in Firefox. Now, I have a big problem because the whole page is based upon a script that doesn't work in Firefox.
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Java 8 method references: provide a Supplier capable of supplying a parameterized result
I'd like to use
3 Answers
3
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