MySQL SQL statement collection

1, create a database and encode it in UTF8

CREATE DATABASE {tablename} DEFAULT CHARACTER SET UTF8 COLLATE utf8_general_ci;

2, Display the table creation statement for a specific table

show create table {tablename};

3, view the system character set settings

show variables like 'char%'

4, Oracle SQLDeveloper connection configuration file location
C:\Users\{UserName}\AppData\Roaming\SQL Developer\system17.2.0.188.1159\o.jdeveloper.db.connection

5, generate random strings

SELECT SUBSTRING(MD5(RAND()) FROM 1 FOR 32) AS str