大约有 3,558 项符合查询结果（耗时：0.0403秒） [XML]
DateTime vs DateTimeOffset
... DateTimeOffset in C#, then you should persist that to a DATETIMEOFFSET in SQL Server. DATETIME2 or just DATETIME (depending on the range required) are fine for regular DateTime values. Yes - you can resolve a local time from any pairing of timezone + dto or utc. The difference is - do you always...
When to use EntityManager.find() vs EntityManager.getReference() with JPA
...which only has the identifier set. If you access the Proxy, the associated SQL statement will be triggered as long as the EntityManager is still open.
However, in this case, we don’t need to access the entity Proxy. We only want to propagate the Foreign Key to the underlying table record so loadi...
Is XSLT worth it? [closed]
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XSLT isn't functional, it's declarative (like SQL).
– jmah
Oct 10 '08 at 12:23
An XSL Tem...
Calendar Recurring/Repeating Events - Best Storage Method
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Storing "Simple" Repeating Patterns
For my PHP/MySQL based calendar, I wanted to store repeating/recurring event information as efficiently as possibly. I didn't want to have a large number of rows, and I wanted to easily lookup all events that would take place on a specifi...
How to get UTF-8 working in Java webapps?
... those characters.
To get UTF-8 working under Java+Tomcat+Linux/Windows+Mysql requires the following:
Configuring Tomcat's server.xml
It's necessary to configure that the connector uses UTF-8 to encode url (GET request) parameters:
<Connector port="8080" maxHttpHeaderSize="8192"
maxThreads="...
Filter rows which contain a certain string
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note that this does not work when the object is a tbl_sql as grepl does not translate to sql.
– David LeBauer
Aug 11 '15 at 17:17
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VS 2015 Preview版已经发布，支持Android开发 - IT产品资讯 - 清泛网 - 专注IT技能提升
...Eclipse可以使用微软的 Android模拟器。VS 2015支持Java、ANT、SQL LITE和WebSocket4web，提供原生的 Git支持。一个新微软正在浮现？
Visual studio 2015 CTP6更新日志
此版本几乎解决了已知的 issues，提升了系统稳定性。
其他改进：
Single Sign i...
What is the opposite of 'parse'? [closed]
I have a function, parseQuery, that parses a SQL query into an abstract representation of that query.
33 Answers
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What resources exist for Database performance-tuning? [closed]
... to a not-the-same-inquiry is probably a good start.
Hidden Features of MySQL
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What is the difference between CHARACTER VARYING and VARCHAR in PostgreSQL?
...pecifier, the type accepts
strings of any size. The latter is a
PostgreSQL extension.
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