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Dynamically operate columns in a table through stored procedures

--------------------------/* Usage 1. Add ColumnsExec pro_addcolumn table name, column name, type/attribute ,''Parameter table@ Tablename varchar (100 ),@ Columnname varchar (100 ),@ Dbtype varchar (32 ),@ MSG varchar (50) Output2. ModifyExec

Nginx implementation of And,or multiple judgments in IF statements

The principle is to use set variables.and is superimposed with a variable, or is toggled with 0 or 1.The logical and/or logical OR operation of the IF condition is not supported in Nginx configuration, and the nested syntax of if is not supported,

Learning notes for nginx logical operations if ()

Nginx configuration does not support the logic and & logic of the if condition or | operation, and does not support the nested syntax of the if condition. Otherwise, the following error is reported: nginx: [emerg] invalid condition.We can indirectly

NGINX distinguishes search engine crawlers from users and rewrite URLs

PrefaceI recently applied for an SSL certificate for fun, so my blog has also enabled HTTPS (on the one hand, it is also because there are too many spam comments. Should I enable HTTPS to prevent some simple water filling machines ?).Then I heard a

The last column of text value multiplied by a number of batches implementation _dos/bat

A.txt #4072.0## #52.19### #72 # # 2#38705.8# # # 51.73## #70 # # 372## #389.0# #51.80# #19.77# # 72##### 4# #59.71#3715.45# #71 ###### With a # and a space as a separator, the last column is multiplied by 7, and the rest is unchanged. The known

What is the difference between "#" and "$" in ibatis?

Recently, I have been working on a problem for a long time. I would like to make a small summary of this problem: We often use the # symbol when using ibatis. For example:SQL code Select *From Member where id = # ID # Then, we will pass a value

Table-valued functions--Custom work calendars

-- =============================================--AUTHOR:HZF--Create date:2016 August 16 11:25:55--Description: Take work calendar default size weeks Statutory holidays and take some can be customized-- =============================================--

Operating tables through stored procedures

--------------------------/* Usage 1. Add ColumnsExec pro_addcolumn table name, column name ,''Parameter table@ Tablename varchar (100 ),@ MSG varchar (50) Output 3. DeleteExec pro_addcolumn table name ,''Parameter table@ Tablename varchar (100 ),@

The single document of the MDI Program System framework corresponds to the creation process of multi-view switching.

1. The system used to create multiple document templates. When different views are displayed, the system calls the Response Document Template pointer to generate a view. When switching, first obtain the current view and determine whether the view is

Arm Compilation Basics (iOS reverse)

1. Arm Compilation BasicsIn the reverse of a function, often need to analyze a large number of assembly code, in the reverse of iOS, ARM assembly is a must master language, this article summarizes the basic knowledge of ARM assembly, if you want to

Lnamp the right to set the site file permissions in the context

There are three ways to control running permissions in a Lnamp environment. First, only cancel the run permissions of the specified directory (such as the upload directory) This way, can only say that there is better than nothing. The second,

Linux programming files and I/O (6): fcntl functions and file locks

I. fcntl Functions Function: manipulate the file descriptor to change the attributes of an opened file. Int fcntl (int fd, int cmd,.../* Arg */); The cmd value can be as follows: Copy file descriptorF_dupfd (long) Set/Get file descriptor

threads, processes, and co-routines

Treading is used to provide thread-related operations, and threads are the smallest unit of work in an application #!/usr/bin/env python#Coding:utf-8ImportThreadingImport TimedefShow (ARG): Time.sleep (1) Print 'Thread'+Str (ARG) forIinchRange (1

Threads and Multithreading Advanced Chapter

python--Threading and multithreading advancedBefore we learned how to create a new thread in a block of code to perform multiple tasks that we want to perform synchronously, the world of threads is much more than that. Next, we're going to cover the

If judgment in nginx achieves multiple judgments

The first is pseudocode (not supported by nginx). It is written here for convenience: The code is as follows:Copy code If ($ remote_addr ~ "^ (12.34 | 56.78)" & $ http_user_agent ~ * "Spider "){Return 403;} This is equivalent and actually

Batch code that implements alternating output between two text peers _dos/bat

There are two texts as follows (in practice you do not know how many lines are in each of the two texts): Text

Use the Nginx implementation to specify Url_nginx based on IP matching

Business requirements Business and development colleagues need my side to do a rule, all access IP for non-Shanghai, Guangzhou Office extranet ip,url for http://test.com/fuck/index.html request to jump to http://test.com/index.html. Then all the

Nginx implementation of If multiple-judgment configuration Method Example _nginx

The Nginx configuration does not support the logic and/or operation of the IF condition, and does not support the nested syntax of if, we can implement it in a variable way:The first is pseudocode (that is, not supported by Nginx), written here only

Nginx the method of supporting logical operation and uppercase and lowercase letters conversion when writing a configuration _nginx

Logical operationsthe logic and && logic of the IF condition is not supported in the Nginx configuration or | | Operation, and the nested syntax for if is not supported, the following error is reported: Nginx: [Emerg] Invalid condition.We can do

ios-Notice: Alarm about setting the alarm, click the app icon to enter the program does not play music issues (resolved)

See demo of the DayThe demo is detailed in the following description:To set an alarm:1. Notification time is not reached, click the app to enter directly, the notification time, the alarm clock does not sound (the alarm is not exited the program is

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