本文将带您了解关于【DB2】HowtoresolveSQL20249Nthestatementwasnotprocessedwitherror的新内容，同时我们还将为您解释db2sql0206n的相关

本文将带您了解关于【DB2】How to resolve SQL20249N the statement was not processed with error的新内容，同时我们还将为您解释db2 sql0206n的相关知识，另外，我们还将为您提供关于 esmenumain.xml:3: error: Error: No resource found that matches the given name (at 'title' with、2019-02-13 Python爬虫问题 NotImplementedError: Only the following pseudo-classes are implemented: nth...、centos7 启动 iptables 时报 Job for iptables.service failed because the control process exited with error cod、Centos7 网络报错Job for iptables.service failed because the control process exited with error code.的实用信息。

• 【DB2】How to resolve SQL20249N the statement was not processed with error（db2 sql0206n）
• esmenumain.xml:3: error: Error: No resource found that matches the given name (at 'title' with
• 2019-02-13 Python爬虫问题 NotImplementedError: Only the following pseudo-classes are implemented: nth...
• centos7 启动 iptables 时报 Job for iptables.service failed because the control process exited with error cod
• Centos7 网络报错Job for iptables.service failed because the control process exited with error code.

【DB2】How to resolve SQL20249N the statement was not processed with error（db2 sql0206n）

相关链接

https://vinaysdb2blog.blogspot.com/2017/11/how-to-resolve-sql20249n-statement-was-not-processed-error.html

转载

https://www-01.ibm.com/support/docview.wss?uid=swg22002381

Technote (troubleshooting)

Problem(Abstract)

In this scenario you perform a restore of a database from a backup image. When the restore completes you receive the error SQL20249N running commands on the database.

Symptom You are restoring from a database backup image with a higher Fix Pack number than the instance it is being restored to, as shown by the example db2diag.log below.

2017-04-21-12.50.46.077587-240 I235453E572 LEVEL: Severe* PID : 15273 TID : 46914280089920 PROC : db2sysc INSTANCE: db2inst1 NODE : 000 DB : SAMPLE APPHDL : 0-10 APPID: LOCAL.db2inst1.170421085044 AUTHID : DB2INST1 HOSTNAME: testserver EDUID : 582 EDUNAME: db2agent (SAMPLE) FUNCTION: DB2 UDB, catalog services, sqlrlGetVersionTimes, probe:180 MESSAGE : Database release: 10050700 ==> Database is now moved back to the ​ current DB2 release level of 10050600

When running the query below...

db2 "select varchar(pkgschema,16),varchar(pkgname,16),valid from syscat.packages where pkgschema=''NULLID'' and pkgname=''SQLUAK20''"

You receive the error below...

SQL20249N The statement was not processed because the package named "NULLID.SQLC2K26" needs to be explicitly rebound.

Cause

Downgrade of database to a lower Fix Pack through a restore causes packages to become invalid. Packages in a later Fix Pack may have certain differences from those in a previous Fix Pack, so if a database is downgraded, the packages are initially set as invalid, forcing the need for those invalid packages to go through the "rebind" action.

Diagnosing the problem Check the db2diag.log after the restore to see there is an entry like the one above shown in the Symptom.

After a restore you would see error SQL20249N when trying to run commands on the database.

(See example in Symptom).

Resolving the problem

Explicitly rebind packages by performing the below commands.

db2 connect to SAMPLE

db2 rebind <package name> RESOLVE CONSERVATIVE

or

db2 -x "select ''REBIND PACKAGE '' || rtrim(pkgschema) || ''.'' || rtrim(pkgname) || '';'' as command from syscat.packages" > rebind.sql

db2 -tvf rebind.sql

And then try the command.

db2 " select pkgschema,pkgname,valid from syscat.packages where pkgschema=''NULLID'' and pkgname=''SQLUAK20'' "

The query should work without error SQL20249N.

esmenumain.xml:3: error: Error: No resource found that matches the given name (at 'title' with

2019-02-13 Python爬虫问题 NotImplementedError: Only the following pseudo-classes are implemented: nth...

soup=BeautifulSoup(html.text,''lxml'')
#data=soup.select(''body > div.main > div.ctr > div > div.newsmcont > p:nth-of-type(3) > img'')
#data=soup.select(''body > div.main > div.ctr > div > div.newsmcont > p > img'')[2]
data=soup.select(''body > div.main > div.ctr > div > div.newsmcont > p:nth-child(3) > img'')
print（data）

当使用copy selector时，复制的是nth-child,而soup 似乎不支持nth-child,所以会报以下错误：

NotImplementedError: Only the following pseudo-classes are implemented: nth-of-type.

将nth-child 改为 nth-of-type 就可以了。

或者去掉nth-child,在后面加上[i-1],即[2]。

关于nth-child 和 nth-type，他们都是取父元素下的第n个元素，他们的区别可以通过下面这个例子了解一下：

<div> 
<ul> 
<p>zero</p> 
<li>one</li> 
<li>two</li> 
</ul> 
</div>

上面这个例子，.demo li:nth-child(2)选择的是<li>one</li>节点，而.demo li:nth-of-type(2)则选择的是<li>two</li>节点。

centos7 启动 iptables 时报 Job for iptables.service failed because the control process exited with error cod

centos7启动iptables时报Job for iptables.service failed because the control process exited with error cod

启动iptables：

 service iptables start
报错如下：

Job for iptables.service failed because the control process exited with error code. See "systemctl status iptables.service" and "journalctl -xe" for details.
查看异常信息：
journalctl -xe
错误如下：

Failed to start IPv4 firewall with iptables.
解决办法
因为centos7默认的防火墙是firewalld防火墙，不是使用iptables，因此需要先关闭firewalld服务，或者干脆使用默认的firewalld防火墙。

因为这次报错的服务器是一台刚刚购买的阿里云服务器，所以在操作上忘记关闭默认防火墙的步骤了才导致浪费了些时间在这件事情上。

关闭firewalld：

 
systemctl stop firewalld
 
systemctl mask firewalld
使用iptables服务:

 
#开放443端口(HTTPS)
 
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
 
 
 
#保存上述规则
 
service iptables save
 
 
 
#开启服务
 
systemctl restart iptables.service
正常启动！！！！

Centos7 网络报错Job for iptables.service failed because the control process exited with error code.

今天在进行项目联系的时候，启动在待机的虚拟机，发现虚拟机的网络设置又出现了问题。

我以为像往常一样重启网卡服务就能成功，但是它却报了Job for iptables.service failed because the control process exited with error code。

后来在网上查找了一列方法进行尝试，虽然没有解决我的问题，但是也做一下记录：

1. 打开任务管理器，先确定你的Vm服务有没有被停止，我开始弄了好一阵子才发现被停止了，虽然启动之后没有解决我的问题，但这种事情也很常见的。
2. 修改位于/etc/sysconfig/network-scripts/ifcfg-ens33，一般的默认网卡都叫ens33，查看网卡的mac地址有没有或是否正确、没有可以加上HWADDR=（你的mac地址）
3. 设定开机启动一个名为NetworkManager-wait-online服务，命令为：systemctl enable NetworkManager-wait-online.service  至于是为什么我也不太了解。

上面我试过的方法依然没有解决我的问题，后来在查找方法的时候找到了一些命令，顺利的解决了我的问题命令为：

chkconfig network off

chkconfig network on

service NetworkManager stop

service NetworkManager start

这里的意思是重新运行网络管理设置，在运行完毕后

敲如 ip a命令，发现网络一切恢复正常

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