大约有 6,000 项符合查询结果（耗时：0.0282秒） [XML]
How do we count rows using older versions of Hibernate (~2009)?
...
What's the point of using an ORM if we end up coding SQL anyway?
– thermz
Apr 17 '12 at 15:35
Th...
nullable object must have a value
...on methods (e.g. Select, Where), the lambda function might be converted to SQL that might not behave identically to your C# code. For instance, C#'s short-circuit evaluated && and || are converted to SQL's eager AND and OR. This can cause problems when you're checking for null in your lambda...
.gitignore for Visual Studio Projects and Solutions
....build.csdef
# Windows Store app package directory
AppPackages/
# Others
sql/
*.Cache
ClientBin/
[Ss]tyle[Cc]op.*
~$*
*~
*.dbmdl
*.dbproj.schemaview
*.pfx
*.publishsettings
node_modules/
# RIA/Silverlight projects
Generated_Code/
# Backup & report files from converting an old project file
# ...
NoSQL Use Case Scenarios or WHEN to use NoSQL [closed]
...
It really is an "it depends" kinda question. Some general points:
NoSQL is typically good for unstructured/"schemaless" data - usually, you don't need to explicitly define your schema up front and can just include new fields without any ceremony
NoSQL typically favours a denormalised schema d...
Increment value in mysql update query
...
You could also just do this:
mysql_query("
UPDATE member_profile
SET points = points + 1
WHERE user_id = '".$userid."'
");
share
|
improve t...
How to set a default entity property value with Hibernate
...not portable from a database to another, and you need to know the specific SQL language of your server.
– pdem
Sep 20 '16 at 7:30
...
Difference between “read commited” and “repeatable read”
...le read simply reads a "snapshot" not the actual data. From the docs dev.mysql.com/doc/refman/5.0/en/…: "All consistent reads within the same transaction read the snapshot established by the first read."
– Derek Litz
Jan 17 '13 at 16:40
...
凤姐当天使 徐小平胡海泉薛蛮子王刚怎么看？ - 资讯 - 清泛网 - 专注C/C++...
...变得更好，更强，更快，比如说滴滴，迅速崛起过程中，包括跟快的的合并过程，需要多少的资源组合，如果没有全社会力量总动员，这样一个巨大的合并，程维一个人是很难做成的。
管得少是一种态度，表达了投资人无限的...
How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
...RT a row when it does not exist, or to UPDATE if it exists, using one MySQL query?
2 Answers
...
Spring JPA @Query with LIKE
...
SQL-Injection using your solution possible? (asking because of CONCAT)
– ramden
Nov 8 '18 at 11:22
...