Mysql export a table
                            

mysqldump -h localhost -u root -p mydb mytable>e:\MySQL\mytable.sql

class:Mysql views:86

Mysql displays the data table in the library
                            

use mysql; show tables;

class:Mysql views:58

Mysql delete database and delete table
                            

drop database db_name; drop table table_name;

class:Mysql views:102

Windows scheduled shutdown command
                            

shutdown -s -t 60

class:Windows views:91

MongoDB creates unique index
                            

db.cmdhelp.ensureIndex({name:1},{unique:true})

class:MongoDb views:72

Linux display permissions
                            

ls -lh

class:Linux views:63

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