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Why is it not advisable to have the database and web server on the same machine?
...w with the Stack Overflow team ( part 1 and 2 ), he was adamant that the SQL server and application server should be on separate machines. Is this just to make sure that if one server is compromised, both systems aren't accessible? Do the security concerns outweigh the complexity of two servers ...
How to use GROUP_CONCAT in a CONCAT in MySQL
If I have a table with the following data in MySQL:
7 Answers
7
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Grant execute permission for a user on all stored procedures in database?
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CREATE ROLE <abc>
GRANT EXECUTE TO <abc>
EDIT
This works in SQL Server 2005, I'm not sure about backward compatibility of this feature, I'm sure anything later than 2005 should be fine.
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Delete with Join in MySQL
... If you're making a better answer - at least you could make the SQL more readable. All the other SQL references in this question have capitalized keywords (except for one with 0 votes). I'm not sure why you reverted my edits.
– Yehosef
Apr 13 '15 a...
NoSql Crash Course/Tutorial [closed]
I've seen NoSQL pop up quite a bit on SO and I have a solid understanding of why you would use it (from here, Wikipedia, etc). This could be due to the lack of concrete and uniform definition of what it is (more of a paradigm than concrete implementation), but I'm struggling to wrap my head aroun...
Best way to store time (hh:mm) in a database
...ed to store some variant of days, hours and minutes; the Time data type in SQL Server only goes up to 23:59:59 so we couldn't use that. Inspired by your answer we decided to have three int columns for days: hours: mins for maximum flexibility. thanks!
– matao
J...
how to check and set max_allowed_packet mysql variable [duplicate]
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max_allowed_packet
is set in mysql config, not on php side
[mysqld]
max_allowed_packet=16M
You can see it's curent value in mysql like this:
SHOW VARIABLES LIKE 'max_allowed_packet';
You can try to change it like this, but it's unlikely this will wo...
Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...IX作業系統，這個錯誤的意思是指欲開啟檔案的路徑名稱(包括檔案名稱)太長。
WSAEHOSTDOWN (10064) 對方主機關閉
在柏克萊socket介面的解釋中，這個錯誤發生的原因是當遠端主機關閉或系統出問題。
WSAEHOSTUNREACH (10065) 無法聯...
Oracle “Partition By” Keyword
...xample of it in action, as well as why one would want to use it? I have a SQL query written by someone else and I'm trying to figure out what it does.
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java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'
... and one will see squares if you are not using fonts that support them.
MySQL's utf8 only supports basic multilingual plane, and you need to use utf8mb4 instead:
For a supplementary character, utf8 cannot store the character at all,
while utf8mb4 requires four bytes to store it. Since utf8 ca...