MySQL 将 DATE 字符串与来自 DATETIME 字段的字符串进行比较
SELECT * FROM shop_count WHERE DATE(count_date)=current_date();
SELECT * FROM shop_count WHERE DATE_FORMAT(count_date, '%Y-%m-%d')=current_date();
SELECT * FROM shop_count WHERE DATE(count_date)=current_date();
SELECT * FROM shop_count WHERE DATE_FORMAT(count_date, '%Y-%m-%d')=current_date();
DATE_ADD(now(),INTERVAL 1 DAY);...
设置my.cnf : auto-rehashmysql>use mysql; #这是关键...
1.date型转换成int型 UNIX_TIMESTAMP('2007-10-04 22:23:00') 2.int型转换成date型 FROM_UNIXTIME(97599...
判断字符串(string)中是否包含另一个字符串(subStr)locate(subStr,string) :函数返回subStr在string中出现的位置实际运用SELECT LOCAT...
SELECT product_brand FROM shop_product WHERE LENGTH(product_brand)>...
SELECT * FROM **** WHERE trim(字段名) REGEXP '[^0-9]'=1...