Some mysql sql basic command I must remember
I use phpmyadmin in daily environment, do I still know sql command?
My sql file too large, it’s hard to import using phpmyadmin, please help me
Some question around mysql from my student, my false make them spoil using phpmyadmin all day long
Here’s my answers :
1. Command to create database
create database databasename
2. Delete database
drop database databasename
3. Import database
mysql -uusername -ppassword databasename < databasename.sql
4. Export database
mysqldump -uusername -ppassword databasename > databasename.sql
5. Pick database and choose one to manage
use databasename
6. List all table in database
show tables
Illustration in mysql command line :
C:\Documents and Settings\Administrator>cd c:\appserv\mysql\bin
C:\AppServ\mysql\bin>mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2 to server version: 4.0.24-nt
Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer.
mysql> show databases;
+————+
| Database |
+————+
| alam |
| cms_smtik |
| cms_stmik |
| cms_study |
| coba |
| kopertis |
| mysql |
| pendidikan |
| roxy |
| test |
+————+
10 rows in set (0.02 sec)
mysql> create database wordpress;
Query OK, 1 row affected (0.03 sec)
mysql> show databases;
+————+
| Database |
+————+
| alam |
| cms_smtik |
| cms_stmik |
| cms_study |
| coba |
| kopertis |
| mysql |
| pendidikan |
| roxy |
| test |
| wordpress |
+————+
11 rows in set (0.00 sec)
mysql> exit
Bye
C:\AppServ\mysql\bin>mysqldump -uroot -p alam > alam.sql
Enter password:
C:\AppServ\mysql\bin>dir /p/w
Volume in drive C has no label.
Volume Serial Number is C83B-A343
Directory of C:\AppServ\mysql\bin
[.] [..] alam.sql
blog.sql bl_roxy5april2007.sql cms_stmik.sql
libmySQL.dll mysql.exe mysqladmin.exe
mysqlbinlog.exe mysqlc.exe mysqlcheck.exe
mysqld-nt.exe mysqld.exe mysqldump.exe
mysqlimport.exe mysqlshow.exe mysqlshutdown.exe
mysqlwatch.exe pdkoper.sql perror.exe
19 File(s) 241.538.584 bytes
2 Dir(s) 1.946.165.248 bytes free
C:\AppServ\mysql\bin>mysql -uroot -p wordpress < alam.sql
Enter password:
C:\AppServ\mysql\bin>mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5 to server version: 4.0.24-nt
Type ‘help;’ or ‘\h’ for help. Type ‘\c’ to clear the buffer.
mysql> use alam;
Database changed
mysql> show tables;
+—————————–+
| Tables_in_alam |
+—————————–+
| serendipity_authors |
| serendipity_category |
| serendipity_comments |
| serendipity_config |
| serendipity_entries |
| serendipity_entrycat |
| serendipity_entryproperties |
| serendipity_exits |
| serendipity_guestbook |
| serendipity_images |
| serendipity_link_category |
| serendipity_links |
| serendipity_photoblog |
| serendipity_plugins |
| serendipity_profiles |
| serendipity_references |
| serendipity_referrers |
| serendipity_spamblocklog |
+—————————–+
18 rows in set (0.00 sec)
mysql>
Common pitfall around this command :
- Forgot to use > or <, use > to export or backup database
- If see ‘hung’ operation then push CTRL + C to cancel operation
- Space after -u and -p, make sure no space, i.e : mysql -uusername -ppassword databasename < databasename.sql
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