| 내용 |
#MySQL 설치 후 계정 생성, 마리아디비 설치 후 Command Prompt 실행
C:\windows\system32>mysql -u root -p
Enter password: ******* #설치시 입력한 관리자 비밀번호 입력
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 11
Server version: 10.2.12-MariaDB mariadb.org binary distribution
Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]>create database testdb;
MariaDB [(none)]>create user user01@'%' identified by 'user123';
MariaDB [(none)]>grant all privileges on testdb.* to 'user01'@'%';
MariaDB [testdb]> Ctrl-C -- exit!
Bye
C:\windows\system32>mysql -u user01 -p
Enter password: ******* # user123
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 11
Server version: 10.2.12-MariaDB mariadb.org binary distribution
Copyright (c) 2000, 2017, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> use testdb
Database changed
MariaDB [testdb]> select count(*) from employees;
+----------+
| count(*) |
+----------+
| 107 |
+----------+
1 row in set (0.00 sec)
#공유폴더에서 sql 파일(MySQL_HR_DDL.sql, MySQL_HR_DML.sql) 복사해서 C:\에 복사
#mysql 프롬프트에서 아래 내용 입력해서 sql 파일 실행
MariaDB [testdb]>source c:/MySQL_HR_DDL.sql
MariaDB [testdb]>source c:/MySQL_HR_DML.sql
MariaDB [testdb]>commit;
MariaDB [testdb]> Ctrl-C -- exit!
Bye
---------------------------------
R에서
-------------------------------------------
> install.packages("RMySQL")
> library(RMySQL)
> drv <- dbDriver("MySQL")
+ con <- dbConnect(drv, dbname="testdb",
+ host="localhost", port=3306,
+ user="test", password="test123")
> emp <- dbGetQuery(con, "select * from employees")
> head(emp)
employee_id first_name last_name email phone_number hire_date
1 100 Steven King SKING 515.123.4567 2003-06-17
2 101 Neena Kochhar NKOCHHAR 515.123.4568 2005-09-21
3 102 Lex De Haan LDEHAAN 515.123.4569 2001-01-13
4 103 Alexander Hunold AHUNOLD 590.423.4567 2006-01-03
5 104 Bruce Ernst BERNST 590.423.4568 2007-05-21
6 105 David Austin DAUSTIN 590.423.4569 2005-06-25
job_id salary commission_pct manager_id department_id
1 AD_PRES 24000 NA NA 90
2 AD_VP 17000 NA 100 90
3 AD_VP 17000 NA 100 90
4 IT_PROG 9000 NA 102 60
5 IT_PROG 6000 NA 103 60
6 IT_PROG 4800 NA 103 60 |