MySql ÅжϺº×Ö¡¢ÈÕÆÚ¡¢Êý×ֵĺ¯Êý
¼¸¸öƽ³£ÓõÄmysqlº¯Êý
/*****************************************************
1.ÅжÏ×Ö·û´®ÊÇ·ñΪºº×Ö ·µ»ØÖµ£º1-ºº×Ö 0-·Çºº×Ö
*****************************************************/
DROP FUNCTION IF EXISTS fc_is_hanzi;
CREATE FUNCTION fc_is_hanzi(
p_str VARCHAR(1024)
)
RETURNS int(11)
NOT DETERMINISTIC
SQL SECURITY DEFINER
COMMENT '¼ì²é×Ö·û´®ÊÇ·ñΪºº×Ö'
BEGIN
/*¼ì²é×Ö·û´®ÊÇ·ñΪºº×Ö ·µ»ØÖµ£º1-ºº×Ö 0-·Çºº×Ö*/
DECLARE _ret, i, other_cnt, l_acode INT DEFAULT 0;
SET _ret = 0;
SET i = 1;
SET other_cnt = 0;
SET l_acode = 0;
WHILE i <= CHAR_LENGTH(p_str) DO
SET l_acode = ASCII(SUBSTRING(p_str, i, 1));
IF l_acode<124 or l_acode>254 THEN
SET other_cnt = other_cnt + 1;
END IF;
SET i = i + 1;
END WHILE;
IF other_cnt = 0 THEN
SET _ret = 1;
ELSE
SET _ret = 0;
END IF;
RETURN _ret;
END;
/*****************************************************
2.ÅжÏÈÕÆÚ¸ñʽÊÇ·ñÕýÈ·£¨·µ»ØÖµ£º1-ÕýÈ· 0-´íÎó£©
*****************************************************/
DROP FUNCTION IF EXISTS fc_ck_date;
CREATE FUNCTION fc_ck_date(
p_cont CHAR(32)
)
RETURNS tinyint(4)
NOT DETERMINISTIC
SQL SECURITY DEFINER
COMMENT 'Åж¨ÈÕÆÚ¸ñʽÊÇ·ñÕýÈ·'
BEGIN
/*Åж¨ÈÕÆÚ¸ñʽÊÇ·ñÕýÈ·£¨·µ»ØÖµ£º1-ÕýÈ· 0-´íÎó£©*/
/*ÊäÈëÖµ¸ñʽΪ£ºyyyyMMdd »ò yyyy-MM-dd*/
IF(SELECT DATE_FORMAT(p_cont
Ïà¹ØÎĵµ£º
mysql³ö´íÁË,ÒÔǰÍùÍù¿¿²Â.ÓÐÁËÕâÕűí,Ò»²é¾Í³öÀ´ÁË.·½±ã²»ÉÙ.ÌØ¹²ÏíÓÚÖÚ
1005£º´´½¨±íʧ°Ü
1006£º´´½¨Êý¾Ý¿âʧ°Ü
1007£ºÊý¾Ý¿âÒÑ´æÔÚ£¬´´½¨Êý¾Ý¿âʧ°Ü
1008£ºÊý¾Ý¿â²»´æÔÚ£¬É¾³ýÊý¾Ý¿âʧ°Ü
1009£º²»ÄÜɾ³ýÊý¾Ý¿âÎļþµ¼ÖÂɾ³ýÊý¾Ý¿âʧ°Ü
1010£º²»ÄÜɾ³ýÊý¾ÝĿ¼µ¼ÖÂɾ³ýÊý¾Ý¿âʧ ......
lect ASIN('foo');
¡¡¡¡-> 0.000000
ATAN(N)
¡¡·µ»ØNµÄ·´ÕýÇÐÖµ
mysql> select ATAN(2);
¡¡¡¡-> 1.107149
mysql> select ATAN(-2);
¡¡¡¡-> -1.107149
ATAN2(X,Y)
¡¡·µ»Ø2¸ö±äÁ¿XºÍYµÄ·´ÕýÇÐ(ÀàËÆY/XµÄ·´ÕýÇÐ,·ûºÅ¾ö¶¨ÏóÏÞ)
mysql> select ATAN(-2,2);
¡¡¡¡-> -0.785398
mysql> ......
ĿǰLAMP (Linux + Apache + MySQL + PHP) ½ü¼¸ÄêÀ´·¢Õ¹Ñ¸ËÙ£¬ÒѾ³ÉΪWeb ·þÎñÆ÷µÄÊÂʵ±ê×¼¡£LAMP
Õâ¸ö´ÊµÄÓÉÀ´×îÔçʼÓڵ¹úÔÓÖ¾“c't Magazine”£¬Michael KunzeÔÚ1990Äê×îÏȰÑÕâЩÏîÄ¿×éºÏÔÚÒ»Æð´´ÔìÁËLAMPµÄËõд×Ö¡£ÕâЩ×é¼þËäÈ»²¢²»ÊÇ¿ª¿ªÊ¼¾ÍÉè¼ÆÎªÒ»ÆðʹÓõ쬵«ÊÇ£¬ÕâЩ¿ªÔ´Èí¼þ¶¼¿ÉÒԺܷ½±ã µÄË ......
1¡¢Èç¹ûʹÓÃsqlite3ʱ³öÏÖÈçÏ´íÎó£º
/!\ FAILSAFE /!\ Thu Jul 30 22:16:15 +0800 2009
Status: 500 Internal Server Error
unknown error
c:/ruby/lib/ruby/1.8/dl/import.rb:29:in `initialize'
c:/ruby/lib/ruby/1.8/dl/import.rb:29:in `dlopen'
&nb ......
Ò»¡¢´ÓÄÄÀïÈëÊÖ
µ±Ò»Ì¨MYSQL·þÎñÆ÷´î½¨Íê³É²¢¿ÉÒÔÕý³£ÔËÐÐʱ£¬ÊDz»ÊÇÎÒÃǵĽŲ½¾ÍÍ£Ö¹ÁË£¬×ÔÒÔΪ¿ÉÒÔ¿ªÊ¼Ê¹ÓÃÁË£¬¶ÔרҵÈËÊ¿À´ËµÆäʵ»¹ÐèÒª¸ü¶àµÄÏà¹ØÓÅ»¯ºÍÉèÖá£ÔõôȥÓÅ»¯£¿ÔõôȥÉèÖã¿Ê×ÏÈÎÒÃǵÃÕÒµ½ËüµÄÆ¿¾±£¬ÎÒÏÖÔÚËùÁ˽âµÄÓÐÁ½ÖÖ·½·¨£¬Ò»ÊÇ»ù×¼²âÊÔ£¬¶þ¾ÍÊdzÌÐò·ÖÎö£¬ËûÃÇÓÐ×ÅÃÜÇеÄÁªÏµ ......