sql if

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SQL if statement PHP establishes a connection to MySQL and executes the code of the SQL statement

Today I wrote a small program, small and small, just to build a link between PHP and MySQL, and implement simple SQL statements. Novice preliminary interview, but also please a lot of experts to guide the road. The program source code is as follows:

SQL if Else

INSERT into Intl_order_tracking_no (Consolidator_no,ORDER_ID,Tracking_no,Sto_no,Batch_no,Order_type,Create_time)VALUES(#{consolidatorno},#{trackingno},#{stono},#{batchno},#{ordertype},#{createtime})#{connectorderitem}#{orderid}SQL if Else

PL/SQL If-then statements

if-thenStatements are the IF simplest form of a control statement and are often used to make decisions and change the control flow of program execution.IFA statement associates a condition with THEN a keyword and END IF a sequence of statements that

Dynamic SQL (if, choose (when, otherwise), trim (where, set), set, foreach)

Why do I need dynamic SQL? Sometimes you need to dynamically stitch SQL statements based on the actual parameters that are passed in. The most common is: where and if tags1. Refer to the official documentation? If: Character judgment? Choose (When,

Structure of Oracle PL/SQL IF statements

The structure of the Oracle IF statement is similar to most languagesIF condition then expr; elsif condition then expr; ELSE expr; END IF;As an example:Select count (Distinct index_name)  INTO CNT FROM USER_INDEXES WHERE  Table_name=c1. table_name;  

MyBatis Dynamic SQL If, choose, where, set, trim, foreach tag instances detailed _java

Dynamic SQL is the dynamic generation of SQL. If tag Suppose there is such a requirement: Query the user, when the user name is not equal to "admin", we also need a password of 123456. The data in the database is: Mybatisconfig.xml

How can you tell if a field is empty again in SQL, if it is not empty and then select this field, how do you write it?

Like what:Select FirstName + lastName from employeeHere I want to first determine whether LastName is empty, if it is empty LastName returns the specified default value, and returns the value in the database without being empty.Select FirstName +

Spring Boot MyBatis Upgrade-annotations-dynamic SQL (if test)-Scenario two: @Provider (8)

1) Dynamic language annotations(2) @Provider the use of ideas(3) @SelectProvider small test sledgehammer(4) @SelectProvider emerged(5) @SelectProvider through(6) @InsertProvider brother deserve(7) @UpdateProvider you add me to change(8) Delete

SQL If there is an update, add if it does not exist, use the Merge function (SQL2008 version and above)

Use [nationalunion]GO/** * * * object:storedprocedure [dbo]. [Proc_datasummary] Script date:07/03/2014 15:33:11 * * * * **/SETAnsi_nulls onGOSETQuoted_identifier onGOAlter proc [dbo].[proc_datasummary20140703](@UserID bigint--,--@Level int)

Use PHP to back up the MySQL database with the most complete code

CompleteCodeUsing PHP to back up MySQL Databases 1. mydb. php // dB class2. Backup. php // backup script3. Restore. php // restore the script Mydb. php Class dB { VaR $ linkid;VaR $ sqlid;VaR $ record; Function dB ($ host = "", $

Php sessions cannot be stored in the database.

{Code ...} I don't know what's going on. I wrote it in reference books, but I just couldn't store it in the database. I copied the above Code on another page and printed the $ _ SESSION array, but it is empty. I don't know where the problem is?

Unable to save PHP session to Database

0) {ini_set (' Session.auto_start ', 0);} function Zen_session_open () {global $zen _session_db; $zen _session_db = new mysqli (' localhost ', ' root ', ' wh36524 ', ' phptest '); return TRUE;} function Zen_session_close () {global $zen

Php document management_php tutorial-PHP Tutorial

Php article management .? Php *** article * 2011921 * kcj ** extends deislogin. php; include... connconfig. inc. php; include_once (.. FCKeditorfckeditor. php); $ oFCKeditornewFCKeditor (content); create /** * Article * 2011/9/21 * Kcj **/ Include

How to let the switch statement jump out and execute it down

How to let the switch statement jump out and execute it down $ Type = $ _ POST ['type']; // You do not need to log on to switch ($ type) {case 1: // SQL read data 1 $ acase 2: // SQL read data 2 $ a} if ($ a) {}// if any data is read, an error die

Contribute a mysql connection operation class

Mysql connection operation class on the phpmysql website/* obtain the time of the last updated table in the SQL statement. if there are multiple tables, return the time of the latest table */ Mysql connection operations on the php mysql website

Recommend a compact Mysql database backup script (PHP) without a virtual host _mysql

The recent work often need to back up the MySQL database on the remote server to the local computer, a direct backup of the MySQL data directory, but because of different coding reasons often arise. Later, my friend recommended me to use a very

Learn to present your own encapsulated DB class and PDO class

DB Package ClassPHPclassdbda{ Public $host= "localhost"; Public $uid= "Root"; Public $pwd= "Root"; Public $dbname= "MyDB"; Public functionQuery ($sql,$type=1) //Connect to the database, the parameter defaults to 1 when the query results, the

Data management You can use the split-volume backup feature only if you choose to back up to the server

Data Management esweb system data Management Data backup Data restore Data optimization /*--------------Interface--------------*/if (!$_post[' act ') {/*----------------------*/$MSGS []= "Server backup directory is $backup";$MSGS []=] for larger

WeChat public platform development-Database Operations

[PHP public platform development series] 01. Configuration Interface02. Public platform sample code analysis03. subscribe Processing04. simple reply function development05. Development of the weather forecast function06. Development of translation

PHP MySQL Database Backup program

The code is as follows Copy Code ?> Data Management esweb system data Management Data backup Data restore Data optimization /*--------------Interface--------------*/if (!$_post[' act ') {/*----------------------* *$MSGS []=

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