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搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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#使用admin数据库
use admin
#定义副本集配置
config = { _id:"shard1", members:[
{_id:0,host:"192.168.0.136:22001"},
{_id:1,host:"192.168.0.137:22001"},
{_id:2,host:"192.168.0.138:22001",arbiterOnly:true}
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How to check existence of user-define table type in SQL Server 2008?
...pe. I want to check it's existence before editing in a patch using OBJECT_ID(name, type) function.
5 Answers
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Android getting value from selected radiobutton
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Tested and working. Check this
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android....
Fragment is not being replaced but put on top of the previous one
...ically using FragmentTransaction.
FragmentTransaction.replace expects the id of the container that contains the fragment and not the id of the fragment as the first parameter. So you should pass the first argument as the id of the container that you added the first fragment to.
You can refer to ...
How to dynamically update a ListView on Android [closed]
On Android, how can I a ListView that filters based on user input, where the items shown are updated dynamically based on the TextView value?
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Android Text over image
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That is how I did it and it worked exactly as you asked for inside a RelativeLayout:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/relativelayout"
android:layout_width="fill_par...
Delete a single record from Entity Framework?
...r table in Entity Framework named employ with a single key column named ID .
15 Answers
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Django database query: How to get object by id?
Django automatically creates an id field as primary key.
6 Answers
6
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Django select only rows with duplicate field values
...mport Count
Literal.objects.values('name')
.annotate(Count('id'))
.order_by()
.filter(id__count__gt=1)
This is as close as you can get with Django. The problem is that this will return a ValuesQuerySet with only name and count. However, you can then us...
Changing the background drawable of the searchview widget
I'm trying to change the drawable that sits in the Android actionbar searchview widget.
12 Answers
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