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Java Persistence / JPA: @Column vs @Basic
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The JPA annotations can be divided in two groups: the pure relational annotations versus the implementation annotations. The pure relational annotations contain: Entity, Basic, OneToOne, OneToMany, ManyToMany, ... while the implementation annotations give clues on ho...
Simplest way to do a recursive self-join?
...te
)
SELECT yr AS 'Year', mon AS 'Month', count(dd) AS 'Days'
FROM CTE
GROUP BY mon, yr, mm
ORDER BY yr, mm
OPTION (MAXRECURSION 1000)
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Struct like objects in Java
...objects is that you have no control over the values that are set to it. In group projects where there are many programmers using the same code, it's important to avoid side effects. Besides, sometimes it's better to return a copy of field's object or transform it somehow etc. You can mock such metho...
HAproxy - Web负载均衡解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...l0日志设备，记录日志等级为info的日志
user haproxy
group haproxy
# 设置运行haproxy的用户和组，也可使用uid，gid关键字替代之
daemon
# 以守护进程的方式运行
nbproc 16
# 设置haproxy启动时的进程数，根据官方文档...
Regular expression to match DNS hostname or IP Address?
...into some usable form, rather than just giving you a match with a bunch of groups.
For example, detecting and parsing IPv4 in (POSIX) C:
#include <arpa/inet.h>
#include <stdio.h>
int main(int argc, char *argv[]) {
for (int i=1; i!=argc; ++i) {
struct in_addr addr = {0};
prin...
Best way to represent a Grid or Table in AngularJS with Bootstrap 3? [closed]
... Wijmo also provides Angular Directives along with features like grouping, sorting etc. You may also check the Benchmark sample for ngGrid and Wijmo Grid with AngularJS: demos.componentone.com/wijmo/Angular/GridBenchmark/…
– Ashish
Apr 17 '14 at 9:0...
Example JavaScript code to parse CSV data
... // Create an array to hold our individual pattern
// matching groups.
var arrMatches = null;
// Keep looping over the regular expression matches
// until we can no longer find a match.
while (arrMatches = objPattern.exec( strData )){
// Get...
What is the difference between JSF, Servlet and JSP?
... bit opaque and a lot of tedious work) when you want to replace a repeated group of components with a single component. Since JSF 2.0, JSP has been deprecated as view technology in favor of Facelets.
Note: JSP itself is NOT deprecated, just the combination of JSF with JSP is deprecated.
Note: JSP h...
Equals(=) vs. LIKE
...s of characters. When the operations
MAX, MIN, DISTINCT, references to a grouping column, and the
UNION, EXCEPT, and INTERSECT operators refer to character
strings, the specific value selected by these operations from
a set of such equal values is implementation-dependent.
(Emphasis added....
Adding custom radio buttons in android
...L for following image.
Your XML code for RadioButton will be:
<RadioGroup
android:id="@+id/daily_weekly_button_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp...