大约有 19,000 项符合查询结果（耗时：0.0448秒） [XML]
Threads vs Processes in Linux
...
If a process forks with an open mysql connection, bad things happen, as the socket is shared between two processes. Even if only one process uses the connection, the other stops it from being closed.
– MarkR
Nov 2 '12 ...
What are the differences between Abstract Factory and Factory design patterns?
...hod used to create objects in a class. It's usually added in the aggregate root (The Order class has a method called CreateOrderLine)
Abstract factory
In the example below we design an interface so that we can decouple queue creation from a messaging system and can therefore create implementatio...
What is the difference between Non-Repeatable Read and Phantom Read?
... easy to understand explanation. However I think most databases ( oracle , mysql ) have a default isolation level of Read Committed and probably postgress uses default of repeatable_read
– akila
Nov 12 '19 at 23:44
...
CSS content property: is it possible to insert HTML instead of Text?
...l be relative to your css file's path i.e, if you've got your css file in /root/css/yourFile.css, then a relative funcIRI like yourFile.svg will be pointing to /root/css/yourFile.svg/. But, I think I remember that some earlier UA had a bug and made it relative to the document's baseURI. So the secur...
Why is my Git Submodule HEAD detached from master?
...ath>
# <submodule-path> is here path releative to parent repo root
# without starting path separator
$ git config -f .gitmodules submodule.<submodule-path>.branch <branch>
$ git config -f .gitmodules submodule.<submodule-path>.update <rebase|merge>
...
What is mod_php?
...
I used xampp to install the php, apache and mysql package... So, what will be my setup?
– SpikETidE
Apr 26 '10 at 10:58
...
How to show all privileges from a user in oracle?
...d ones
WITH ALL_ROLES_FOR_USER AS (
SELECT DISTINCT CONNECT_BY_ROOT GRANTEE AS GRANTED_USER, GRANTED_ROLE
FROM DBA_ROLE_PRIVS
CONNECT BY GRANTEE = PRIOR GRANTED_ROLE
)
SELECT
PRIVILEGE,
OBJ_OWNER,
OBJ_NAME,
USERNAME,
REPLACE...
Using an ORM or plain SQL? [closed]
...hen proceeded to forget about), I've been writing plain SQL, primarily for MySQL. Though I have used ORMs in python like SQLAlchemy , I didn't stick with them for long. Usually it was either the documentation or complexity (from my point of view) holding me back.
...
what's the difference between “hadoop fs” shell commands and “hdfs dfs” shell commands?
...ates to any filesystem like, local or hdfs, How hadoop choose to show HDFS root directory content when I do hadoop fs -ls / ? Also, How can I tell hadoop to show my local root directory content when I run the hadoop fs -ls / command ?
– sgsi
Jan 29 '15 at 22:5...
How do I create an HTML table with a fixed/frozen left column and a scrollable body?
... also used jQuery to .clone() the table, once it has been generated by php+MySQL+ajax, and insert it into a cleaned out div...
– Peter
Mar 6 '18 at 22:27
...