大约有 9,000 项符合查询结果（耗时：0.0257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="...
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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On duplicate key ignore? [duplicate]
...cause it will additionally hold Next-Key lock on your indexes. More: dev.mysql.com/doc/refman/5.7/en/…
– Dzmitry Lazerka
Mar 14 '17 at 7:13
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Order a List (C#) by many fields? [duplicate]
...he answer you're looking for? Browse other questions tagged c# list lambda sql-order-by or ask your own question.