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ÔÚC#.net³ÌÐòÖÐʹÓÃMYSQLÊý¾Ý¿â

ÏÂÃæÊÇcommond:
MySQLCommand cmd;
cmd = new MySQLDriverCS.MySQLCommand("DROP TABLE IF EXISTS test.mysqldrivercs_test",conn);
cmd.ExecuteNonQuery();
cmd.Dispose();
ÏÂÃæÊÇinsert:
string Value = "Value";
int SettingID = 1;
new MySQLInsertCommand(conn,
new object[,] {{"SettingID",SettingID},{"SettingValue",Value}},
"mysqldrivercs_test");
ÏÂÃæÊÇupdate
Value = "Value2";
new MySQLUpdateCommand(conn,
new object[,] {{"SettingValue",Value}},
"mysqldrivercs_test",
new object[,] {{"SettingID","=",SettingID}},
null);
ÏÂÃæÊÇselect
DataTable dt = new MySQLSelectCommand(conn,
new string[] {"SettingID","SettingValue"},
new string[] {"mysqldrivercs_test"},
new object[,] {{"SettingID","=",SettingID}},
null,
null
).Table;
string storedValue = dt.Rows[0]["SettingValue"].ToString();
ÏÂÃæÊÇdelete
new MySQLDeleteCommand(conn,"mysqldrivercs_test",new object[,] {{"SettingID","=",SettingID}},null);
¹Ø±ÕÁ´½Ó:
conn.Close();


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1¡¢µÇ½MySQL:
mysql -u root -p
2¡¢²é¿´Óû§ÐÅÏ¢
select user,host,password from mysql.user;
select user,host from mysql.user;
3¡¢ÉèÖÃÃÜÂë
set password for root@localhost=password('
ÔÚÕâÀïÌîÈërootÃÜÂë
');
4¡¢ÐÞ¸ÄÃÜÂë
·½·¨1£ºmysqladmin -u root -p password newpassword
·½·¨2£º ££mysql -u root ......

mysqlË÷ÒýµÄʹÓü°Óï¾äÓÅ»¯

Ò»:mysqlÀïĿǰֻ֧³Ö4ÖÖË÷Òý·Ö±ðÊÇ:b-tree,full-text,hashÒÔ¼°r-treeË÷Òý b-treeË÷ÒýÓ¦¸ÃÊÇmysqlÀï×î¹ã·ºµÄË÷ÒýµÄÁË,³ýÁËarchive,»ù±¾ËùÓеĴ洢ÒýÇæ¶¼Ö§³ÖËü. 1.b-treeÔÚmyisamÀïµÄÐÎʽºÍinnodbÉÔÓв»Í¬ ÔÚinnodbÀïÃæÓÐÁ½ÖÖÐÎ̬:ÆäÒ»ÊÇprimary keyÐÎ̬Æäleaf nodeÀï´æ·ÅµÄÊÇÊý¾Ý.¶øÇÒ²»½ö´æ·ÅÁËË÷Òý¼üµÄÊý¾Ý,»¹´æ·ÅÁËÆ ......

mysql ѧϰÊÖ¼Ç(1)

1.ÉèÖñäÁ¿
    set @x = 2;
    »ò:
    select @x := max(fields) as max from table;
2.Éú³Éhtml»òxml
    mysql -H -uroot -p databaseName        Éú³ÉhtmlÎļþ
    mysql -x -uroot -p databaseNam ......

mysql ÀàÐÍת»»º¯Êý

12.8.   Castº¯ÊýºÍ²Ù×÷·û  
BINARY    
BINARY²Ù×÷·û½«ºóÃæµÄ×Ö·û´®Å׸øÒ»¸ö¶þ½øÖÆ×Ö·û´®¡£ÕâÊÇÒ»ÖÖ¼òµ¥µÄ·½Ê½À´´ÙʹÖð×Ö½Ú¶ø²»ÊÇÖð×Ö·ûµÄ½øÐÐÁбȽϡ£ÕâʹµÃ±È½ÏÇø·Ö´óСд£¬¼´Ê¹¸ÃÁв»±»¶¨ÒåΪ   BINARY»ò   BLOB¡£BINARYÒ²»á²úÉú½áβ¿Õ°×£¬´Ó¶ø¸ü¼ÓÏÔ ......

MysqlÖÐÈçºÎÅúÁ¿Éú³É½Å±¾


[root@sql21 ~]# mysql -u root
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3 to server version: 5.1.26-rc-log
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> show databases;
+--------------------+
| Database  &nb ......
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