È¡mysql±íºÍ×Ö¶Î×¢ÊÍ
È¡mysql±íºÍ×Ö¶Î×¢Ê͵ÄÓï¾ä
1¡¢È¡×Ö¶Î×¢ÊÍ
Select COLUMN_NAME ÁÐÃû, DATA_TYPE ×Ö¶ÎÀàÐÍ, COLUMN_COMMENT ×Ö¶Î×¢ÊÍ
from INFORMATION_SCHEMA.COLUMNS
Where table_name = 'companies'##±íÃû
AND table_schema = 'testhuicard'##Êý¾Ý¿âÃû
AND column_name LIKE 'c_name'##×Ö¶ÎÃû
2¡¢È¡µÃ±í×¢ÊÍ
Select table_name ±íÃû,TABLE_COMMENT ±í×¢ÊÍ from INFORMATION_SCHEMA.TABLES Where table_schema = 'testhuicard' ##Êý¾Ý¿âÃû
AND table_name LIKE 'companies'##±íÃû
²Î¿¼http://dev.mysql.com/doc/refman/5.1/zh/information-schema.html.
mysqlÊֲ᣺23.1. INFORMATION_SCHEMA±í
3¡¢È¡µÃijÊý¾Ý¿âÏÂËùÓбíµÄ×¢ÊÍ
$tt = mysql_query("show table status;");
$table_info£½array();
while($re = mysql_fetch_array($tt,MYSQL_ASSOC)){
//$re["Comment"],Õâ¸ö¾ÍÊDZíµÄ×¢ÊÍ
$table_info[] = $re;
}
Ïà¹ØÎĵµ£º
MySQLÂý²éѯ¼Ç¼ÈÕÖ¾¶ÔÓÚ¸ú×ÙMySQL¸ºÔص÷ÓÅÎÊÌâºÜÓÐÓô¦£¬ÆäʵÆôÓÃMySQLµÄÂý²éѯÈÕÖ¾ºÜ¼òµ¥,Ö»ÐèÒªÔÚMySQLµÄÅäÖÃÎļþÀïÌí¼Ólog-slow-queriesºÍlong_query_timeÁ½¸ö²ÎÊý¼´¿É¡£
WindowsÏ¿ªÆôMySQLÂý²éѯ
MySQLÔÚWindowsϵͳÖеÄÅäÖÃÎļþÒ»°ãÊÇÊÇmy.iniÕÒµ½[mysqld]ÏÂÃæ¼ÓÉÏ
log-slow-queries = F:\MySQL\log\mysqls ......
MySQL×Ö·û´®ÁÐÀàÐÍÇø·Ö
1.
Ê×ÏÈCHAR, VARCHAR, TEXTºÍBINARY, VARBINARY, BLOBµÄÇø±ð£º
CHAR, VARCHAR, TEXT³ÆÎª·Ç¶þ½øÖÆ×Ö·û´®£»
BINARY, VARBINARY, BLOB³ÆÎª¶þ½øÖÆ×Ö·û´®£»
¶þ½øÖÆ×Ö·û´®ºÍ·Ç¶þ½øÖÆ×Ö·û´®µÄÇø±ðÊÇ£º
¶þ½øÖÆ×Ö·û´®°üº¬µÄÊÇ×Ö½Ú×Ö·û´®£¬·Ç¶þ½øÖÆ×Ö·û´®°üº¬µÄÊÇ×Ö·û×Ö·û´®£»
ºóÕß¿ÉÒÔ¶¨Òå×Ö·û¼ ......
Mysql°²×°
MysqlµÄ°²×°Îļþ¿ÉÒÔÖ±½Óµ½ http://www.mysql.com ÏÂÔØ£¬»ñµÃfor win32µÄ.zip°ü£¬½¨ÒéÑ¡Ôñ4.0.20d°æ±¾¡£ÕâÀï²»Ïêϸ˵Ã÷¡£
¡¡¡¡ÏÂÔØ»ñµÃMysqlµÄfor win32°²×°°üºó£¬ÓÃwinzip½âѹËõ£¬Ö±½ÓÔËÐÐsetup.exe£¬ÐèҪעÒâµÄÊÇÑ¡ÔñÒ»¸ö°²×°Â·¾¶£¬µ±È»£¬°²×°Â·¾¶¿ÉÒÔÈÎÒ⣬½¨ÒéÑ¡ÔñC:\MySQLĿ¼¡£°²×°Íê³ÉºóMySQLÒ²¾ÍÍê³É ......
ÏÂÃæµÄÊÇMySQL°²×°µÄͼ½â:¡¡¡¡
Ë«»÷ÔËÐГsetup.exe”£¬³öÏÖÈçϽçÃæ£º
mysql°²×°Ïòµ¼Æô¶¯£¬°´“Next”¼ÌÐø
Ñ¡Ôñ°²×°ÀàÐÍ£¬ÓГTypical£¨Ä¬ÈÏ£©”¡¢“Complete£¨ÍêÈ«£©”¡¢“Custom£¨Óû§×Ô¶¨Ò壩”Èý¸öÑ¡ÏÎÒÃÇÑ¡Ôñ“Custom”£¬Óиü¶àµÄÑ¡ÏҲ· ......