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如何查看Oracle用户的SQL执行历史记录？ - 数据库(内核) - 清泛网 - 专注C/...
...相关的语句 必须具有DBA 的权限 虽然这条语句很普通 但是需要的时候很管用 能够及时查出一个人执行sql语句情况
-------oracle 查看已经执行过的sql 这些是存在共享池中的 --------->
select * from v$sqlarea t order by t.LAST_ACTIVE_TIME desc
...
Creating a custom JButton in Java
...
private Color circleColor = Color.BLACK;
public MyButton(String label) {
super(label);
}
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Dimension originalSize = super.getPreferredSize();
int gap = (int) (origina...
从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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图片摘自Mahout in Action
从上图中我们可以看到，算法是被模块化的，通过1,2,3,4的过程进行方法调用。
程序代码：
public class UserCF {
final static int NEIGHBORHOOD_NUM = 2;
final static int RECOMMENDER_NUM = 3;
public static void main...
Presenting a UIAlertController properly on an iPad using iOS 8
...e = [UIAlertAction
actionWithTitle:NSLocalizedString(@"IDS_LABEL_DELETE", nil)
style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
// Delete
// [self deleteFileAtCurrentIndexPath];
}];
// Can...
App Inventor 2 LLMAI2Ext 自研拓展：接入DeepSeek、Kimi、通义千问...等国...
...拓展的初衷
App Inventor 2 原生的ChatGPT组件由于是国外的，使用起来不太便捷，且各种限制。
如今我们又身处AI浪潮之中，包括很多学校在内的国内用户都有AI结合传统的App来开发具有智能App的需求，因此，必须开发拓...
Where do I use delegates? [closed]
.... Show the form.
// Form2
public void passData(TextBox txtForm1)
{
label1.Text = txtForm1.Text;
}
// SUMMARY: Simply take TextBox txtForm1 as parameters (as defined in your delegate) and assign label text to textBox's text.
I hope this enlightens some use on delegates :) ..
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Improve subplot size/spacing with many subplots in matplotlib
... = tic.MaxNLocator(3)
ax.yaxis.set_major_locator(temp)
ax.set_xticklabels(())
ax.title.set_visible(False)
plt.show()
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Difference between id and name attributes in HTML
...lement> for links like this: <a href="#XXX".
name= is also used to label the fields in the message send to a server with an HTTP (HyperText Transfer Protocol) GET or POST when you hit submit in a form.
id= labels the fields for use by JavaScript and Java DOM (Document Object Model).
The name...
ActionBarCompat: java.lang.IllegalStateException: You need to use a Theme.AppCompat
...l
<activity
android:name="com.example.Home"
android:label="@string/app_name"
android:theme="@style/Theme.AppCompat.Light.NoActionBar"
>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<cat...
Android -Starting Service at Boot Time
...onName="1.0">
<application android:icon="@drawable/icon" android:label="@string/app_name" android:debuggable="true">
<activity android:name=".BR_Example"
android:label="@string/app_name">
<intent-filter>
<action andro...