freedns update

The firmware for the router is dd-wrtTo register a dynamic domain name on the freedns.afraid.org, if the default port cannot use 80, you need to configure the URL forwarding function of level two domain name.The measured 2 months were stable.In addition, in order to prevent the host IP address update frequently, you can perform a cron scheduled command in the background ping to keep the network connection, minimizing the possibility of IP being replac

It may be an ignored update Statement (update technique) or an update statement Well, I 've written a simple article again, and I hope you will not be enlightened. This time I want to talk about the update statement in SQL. Speaking of this, there will certainly be a lot of brothers who are not satisfied. Isn't it an

First, the basic idea of COCOS2D-JS dynamic update The official beta release provides the Assetsmanager class to complete the dynamic update steps, Description: Https://github.com/chukong/cocos-docs/blob/master/manual/framework/html5/v3/assets-manager/zh.md COCOS2D program, take Android as an example, the program exists in 2 places: APK installation directory (/data/ Dalvik-c

Tags: you key error option Col NEC post error code Mys1 IntroductionWhen the where statement is missing from the update field, MySQL prompts for the error code:Error code:1175. You is using Safe update mode and you tried to update a table without a WHERE is uses a KEY column to disable safe mode , toggle the option in Preferences, SQL Queries and reconnect. 0.000

JQuery implements real-time update of the drop-down menu (the content is time) and the method of following-up update of charts, jquery real-time update Project sharing: Module 1: real-time display of the drop-down menu for the last week: // Display date drop-down box for (var I = 0; I The output format is year-month-day. In the project, select the corresponding

Forwarded on: Http://blog.csdn.net/qq_26684469/article/details/51105188?locationNum=5fps=1The original set sql_safe_updates = 1;If the conditional attributive clause is followed by a non-primary key, the above error will be reported, the above security level is set lower, as follows:SET sql_safe_updates = 0;Then execute the UPDATE statement, asSet sql_safe_updates = 0;update Project.demand Set title= "The h

. The following method may be used when a synchronization program is required in a project or when a large amount of data is updated automatically. 3. for analysis, we need to integrate some data into a table, which involves associating multiple tables with the primary key to obtain the values of some of the fields. We can simply implement it through update. I found an article, pretty good: When updating tables in batches, when updating columns in a

If the win system comes with a Windows Update upgrade feature, we can use it to upgrade the Windows 10 operating system, but there is a part of the Web page that uses it to prompt for error 80070002 errors when it is upgraded: Solutions, as follows First, stop the update service In your system into the computer's "Control Panel" and then find the list of "management tools" this different system, th

SQL Update multi-table joint Update method, sqlupdate joint Update Sometimes we need to update the data in multiple tables at the same time, then we need to use the following method: (1) sqlite multi-Table update Method Copy codeThe Code is as follows://---------------------

How to view update records, win10 update history, and win10 update records in win10 System How to view win10 system update records? After the Windows 10 system is updated, how can I view the updated content? In fact, it can be viewed in Windows Update. Open the win10 oper

Problem Description:Two Tables A and B, each with a field, update time A.MODIFIED_TM and B.modified_tm,a table as the main table, update time is not empty, but the B table update time may be empty, now to take a, B two table time the newest one, b.modified_ If the TM is empty, take A.modified_tm, for example:Table AID Modified_tm1 2013/3/10 18:07:122 2013/4/10 18

Insert on Dumplicate Update when the primary key is the same update, the contents of the update change to 1 Multiple contents of update are separated by commas ... And notmysql> insert INTO ' 200702 ' (' Domain ', ' 2nd_domain ', ' TLD ', ' query_ns1 ', ' query_ns2 ', ' report_date ') VALUES (' DNSPOD.C Om ', ' dnspo

Http://www.cnblogs.com/quanweiru/archive/2012/11/09/2762223.html 1,for update and for update nowait differences: First of all, if only Select,Oracle will not add any lock, that is, Oracle to Select read the data there is no limit, although it is possible that another process is modifying the data in the table, And the result of the modification may affect the result of your current SELECT statement, but bec

1. The difference between for update and for update nowait:First of all, if only select, Oracle will not add any lock, that is, Oracle to select read the data there is no limit, although it is possible that another process is modifying the data in the table, And the result of the modification may affect the result of your current SELECT statement, but because there is no lock, the select result is the state

In MySQL batch update we may use Update,replace into to operate, the following to give you detailed description of MySQL batch update and performance bar! MySQL UPDATE statement is simple, update a field of the data, generally write code as follows:

Original source http://bijian1013.iteye.com/blog/1895412 the difference between the for update and for update nowait First of all, if only select, Oracle will not add any locks, that is, Oracle to select There is no limit to the data read, although it is possible that another process is modifying the data in the table, and the result of the modification may affect the result of your current SELECT statem

The following articles mainly introduce the actual usage of the MySQLupdate statement. We first use the UPDATE statement of a single table to introduce the actual implementation of the MySQLupdate statement. The following articles mainly introduce the actual usage of MySQL update statements. We first use a single-Table UPDATE statement to introduce the actual sol

Introduction to update subqueries and update queries Basic knowledge1. Associated subqueries and non-associated subqueries In a non-associated subquery, an internal query only executes once and returns its value to an external query. Then, an external query uses the value returned by an internal query in its processing. In associated subqueries, an internal query is executed once for each row of data return

Basic Update Statements The Oracle UPDATE statement processes one or more rows in a table and sets one or more columns to the values of you specify. Update All records UPDATE SET CREATE TABLE Test ASSELECT object_name, Object_typeFrom All_objs;SELECT DISTINCT object_nameF

Tags: end current ora code according to blog STR Error strongThis article transferred from: http://blog.sina.com.cn/s/blog_61cd89f60102e7di.html In the production database, in order to ensure that the data read, write the uniqueness, often encounter the following five kinds of lock statements, the difference in that? Here we illustrate with examples: 1. For UPDATE 2. For UPDATE of COLUMN 3. For