Mysql Tutorial

Do you have a headache for getting MySQL to change the character set? Don't worry, the following article will give you the correct solution, the following article is mainly introduced to get the MySQL change character set scheme, the following is the specific description of the relevant content. 　　ROR+MYSQL5 UTF8 collocation problem Solution C # +mysqldriver.dll garbled problem 1, with the SET syntax to specify, do not add "GLOBAL" is only valid for this session. ...

Script on /home/user/mysql_backup.sh crontab # crontab -l # m dom dom dow downgrade 28 16 * * * / home / user / m ...

sql query special does not include the date of the data sql = "select * from test where dates not in (# 2010-05-03 #, # 2010-05-12 #)" date format before and after plus plus # Can be found not include # 2010-05-03 #, # 2010-05-12 # all the data, look at a more stupid way 'sql = "select * fro ...

Today to introduce six more useful MySQL SQL statements, probably many people through PHP to achieve these functions. 　　1. Calculate the number of years you want to figure out how old this person is by birthdays. 　　SELECT Date_format (From_days to_days (now ())-To_days (@dateofbirth)), '%Y ' + 0; 2. Two time difference to obtain two datetime value difference. Suppose dt ...

How to List All Databases for a mysql Server mysql_db_name Definition and Usage The mysql_db_name () function assumes that the mysql_list_dbs () function is called from the database name. This function returns the success of the database name, or FALSE failed. Syntax mysql_db_name (list, row, field) list Required. Result pointer specified mysql_list_dbs () function row required ...

1> explain SQL, similar to Oracle explain statement For example: explain select * from nad_aditem; 2> select benchmark (count, sql); Calculate the sql statement to perform count times For example: mysql> select benchmark (1000; Select * FROM AD;); + ---------...