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Several problems in the use of QT qmake: Pro, PRI, PRF, prl file config usage

8. Qmake CONFIG and QT Chat Http://www.cnblogs.com/hnrainll/archive/2011/05/20/2052335.html Any entry in the Config row is also a scope. For example, you write this: CONFIG + + warn_on You will get a scope called "warn_on". This will make it easy to modify the configuration in your project without losing all of the customizations that might be required under certain conditions. Because you may put your own values in the Config line, this will provide you with a very powerful configur

COCOS2D-JS Online Update Code script Dynamic update script hot update

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

SQL UPDATE statement, Error code:1175. You are using Safe update (encountered when making a view update)

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

An update 80070002 error occurred when the computer tried to update Windows 10 o'clock using Windows Update

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

It may be an ignored update Statement (update technique) or an update statement

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

SQL Update multi-table joint Update method, sqlupdate joint Update

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 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

MySQL Update field value prompts you is using Safe update mode and you tried to update a table without a WHERE is uses a KEY column to Disab Le Safe mode

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

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

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

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

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

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

Update associate other tables to Update data in batches-Cross-database-Cross-Server update

. 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

Implementation statement for Oracle Update Data Update

Implementation statement for Oracle Update Data Update Sql>--Create demo table Sql> CREATE TABLE Employee ( 2 ID VARCHAR2 (4 BYTE) not NULL, 3 first_name VARCHAR2 (BYTE), 4 last_name VARCHAR2 (BYTE), 5 start_date Date, 6 end_date Date, 7 Salary Number (8,2), 8 City VARCHAR2 (BYTE), 9 Description VARCHAR2 (MB) 10) 11/ Table created. Sql> Sql>--Prepare data sql> INSERT into Employee (IDs, firs

MongoDB Operations Manual CRUD Update update

Tags: MongoDB update updates Replacement replaceModify a recordOverviewMongoDB provides the update () method for updating records. This method accepts the following parameters:A JSON object that updates the criteria for matching records, an update action JSON object for declaring the update operation, and an option for

SQL Insert data already exists, perform update update

In many projects, we need to make constant calls and updates to the data and add it to the database if new data comes in. One of the most important is that we do not know whether the data passed in the original database is already in the record, so we often need to crawl data to determine if there is, if there is an implementation of update, if there is no execution insert, this will require two database operations, The first time is the query, the se

Implementation statement for Oracle Update Data Update

Implementation statement for Oracle Update Data Update Sql>--Create demo tableSql> CREATE TABLE Employee (2 ID VARCHAR2 (4 BYTE) not NULL,3 first_name VARCHAR2 (BYTE),4 last_name VARCHAR2 (BYTE),5 start_date Date,6 end_date Date,7 Salary Number (8,2),8 City VARCHAR2 (BYTE),9 Description VARCHAR2 (MB)10)11/ Table created. Sql>Sql>--Prepare datasql> INSERT INTO Employee (ID, first_name, last_name, start_da

SQL Update Multi-Table Federated Update method _ database other

There are times when we need to update data from multiple tables and then we need to use the following methods: (1) SQLite multiple table Update method Copy Code code as follows: //---------------------------------- Update T1 set Col1=t2.col1 from table1 t1 Inner JOIN table2 T2 on T1.col2=t2.col2 This is a very simple batch

Goojje PR Update then degree Niang also big update

No. 6.27, around 10 o'clock in the evening, a thrilling moment, Google PR update, a lot of stations PR has risen, of course, there are some stations PR dropped, No. 6.28 morning we found that Baidu has also come to a major update, there are many stations included a sudden decline, of course, there are many stations included arrayed Chong large. Google update why

When the update value is the same as the original value, does SQL Server really go to update or ignore it?

Original: Does SQL Server really go to update or ignore when the update value is the same as the original value?Consider the following scenario:When the update value is the same as the original value, does SQL Server really go to update or ignore it? For example:Update Tbname Set name='abc'--The original value of name

Win7 cannot update automatically, update failed?

What about Win7 Automatic update failure? WIN7 Automatic Update error How to solve? Win7 checking for update failure is one of the things that Win7 users often encounter. In addition to the traditional network environment impact, the Windows Update system with Windows updated components also fails, causing users to c

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