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在Centos 7中如何连接mongodb

sample [lwk@qwfys:~]$ mongo -u lanzhou mongodb://vm88.lan/lanzhou MongoDB shell version v4.2.8 Enter password: connecting to: mongodb://vm88.lan:27017/lanzhou?compressors=disabl...

2020/07/17 10:07
89
How to insert data to mongodb on centos 7

insert & read data to mongodb > use lanzhou switched to db lanzhou > db.wuwei.save( { a: 1 } ) WriteResult({ "nInserted" : 1 }) > db.wuwei.find() { "_id" : ObjectId("5f0faebe2d6...

How to use the permission model of mongodb

connect to mongodb server without authentication parameter [lwk@qwfys:~]$ mongo --host 192.168.3.88 MongoDB shell version v4.2.8 connecting to: mongodb://192.168.3.88:27017/?com...

2020/07/16 09:10
623
install mysql 5.7 to Linux Mint 19.0

install lwk@qwfys:~$ apt install mysql-server mysql-client mysql-workbench Reading package lists... Done Building dependency tree Reading state information... Done The following...

2018/08/04 11:30
1K
mysql in action / alter table

change character set ALTER SCHEMA `employees` DEFAULT CHARACTER SET utf8mb4 DEFAULT COLLATE utf8mb4_general_ci ; ALTER TABLE `employees`.`t2` CHARACTER SET = utf8mb4 , COLLAT...

2018/06/18 00:51
112
man mysql

lwk@qwfys ~ $ man mysql > mysql.txt lwk@qwfys ~ $ cat mysql.txt MYSQL(1) MySQL...

2018/06/17 10:08
166
mysql in action

修改表字符集 ALTER TABLE `database_name`.`table_name` CHARACTER SET = utf8mb4 , COLLATE = utf8mb4_general_ci ;...

2018/06/15 09:48
148

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