The SQL used to manipulate the database is generally divided into two types, one is the query statement, which we call the SELECT statement, the other is the UPDATE statement, also known as the data manipulation statement. Updating statement Update
MySQL Updates Data UPDATE statement
Definition of the UPDATE statement:
The update syntax can update columns in existing table rows with new values. Let's take a look at the definition of the UPDATE statement standard, which can be omitted in []:
The following articles mainly introduce the actual usage of MySQL insert into statements and related statements in MySQL insert into statements. MySQL insert into statements are frequently used in actual applications, therefore, it is better to know
The following article mainly introduces the actual usage of the MySQL INSERT INTO statement and the introduction of the relevant statements in the MySQL INSERT INTO statement, the MySQL INSERT INTO statement is often used in the actual application
MySQL Format statement specificationHow do I log into your database?Example!If you are compiling the installation of the flowers, then you have to compile the installation of the directory to go, my is installed into the/usr/local/mysql database: Cd/
1) If you INSERT many rows from the same customer at the same time, use the INSERT statement of multiple value tables. This is faster than using separate INSERT statements (several times in some cases ). The code is as follows:Copy code Insert
This article is a MySQL database insert, UPDATE, delete and replace statements in the use of detailed analysis of the introduction, the need for friends to refer to the
MySQL database insert and UPDATE statements Introduction: The SQL used to
INSERT the speed of the statementThe time required to insert a record is made up of the following factors, where the number represents the approximate scale: Connection: (3) Send query to server: (2) Analysis query: (2) Insert record: (1x record
1. Full backup and incremental backup 1.1 full-scale backupFull-volume data is all the data in the database, and a full backup is the backup of all the data in the database.Back Up all libraries:mysqldump -uroot -p123456 -S /data/3306/mysql.sock -F -
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