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Map enum in JPA with fixed values?
... Authority implements Serializable {
public enum Right {
READ(100), WRITE(200), EDITOR (300);
private int value;
Right(int value) { this.value = value; }
public int getValue() { return value; }
public static Right parse(int id) {
Right...
Is memcached a dinosaur in comparison to Redis? [closed]
...this issue from the perspective getting down the who is faster at the < 100 ms range, look at the performance per "class" of the software.
Does it use only local ram? -> fastest
Does it use remote ram? -> fast
Does it use ram plus hardddisk -> oh hurm.
Does it use only harddisk -> r...
Select random row from a sqlite table
...s solution, since it allows me to search for n lines. In my case, I needed 100 random samples from the database - ORDER BY RANDOM() combined with LIMIT 100 does exactly that.
– mnr
Aug 29 '18 at 0:03
...
Errors: “INSERT EXEC statement cannot be nested.” and “Cannot use the ROLLBACK statement within an I
...s important when it's called several times a second throughout the day and 100,000 times in a nightly process.
– Jason Goemaat
Aug 4 '14 at 21:06
...
Get the first item from an iterable that matches a condition
... the next built-in and so I assume that for some mysterious reason they're 100% focused on versions 2.5 and older -- without mentioning the Python-version issue (but then I don't see that mention in the answers that do mention the next built-in, which is why I thought it necessary to provide an answ...
Search for one value in any column of any table inside a database
..., in case of link rot:
CREATE PROC SearchAllTables
(
@SearchStr nvarchar(100)
)
AS
BEGIN
-- Copyright © 2002 Narayana Vyas Kondreddi. All rights reserved.
-- Purpose: To search all columns of all tables for a given search string
-- Written by: Narayana Vyas Kondreddi
-- Site: http://vyaskn.tripo...
How many threads can a Java VM support?
... try {
Thread.sleep(1000);
} catch (Exception e){
System.err.println(e);
}
}
}
}).start();
...
How can I loop through a List and grab each item?
...a foreach loop vs. a for loop. I just ran a quick test with your code with 100,000 entries in the List and the foreach loop took twice as long (actually 1.9 times as long). This isn't necessarily true in all situations, but in many. It depends on the size of the List, how many operations you do with...
linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...gi-bin \?
cache deny QUERY
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320
acl apache rep_header Server ^Apache
broken_vary_encoding allow apache
coredump_dir /var/spool/squid
3.测试机配置...
Positioning a div near bottom side of another div
...;
<div style='background-color: yellow; width: 70%;
height: 100px; position: relative;'>
Outer
<div style='background-color: green;
position: absolute; left: 0; width: 100%; bottom: 0;'>
<div style='background-color: magenta; width: 100px;
...