mysql> select * from heartbeat order by id desc limit 20;Empty set (0.00 sec)
+-----+-------+--------------+------+-----+---------+----------------+
3 row
我需要从一个表中提取3个值,并将每个值赋值给一个变量,每个值基于列、类型和id。$ht_live_query = mysql_query("SELECT htcode FROM coupon WHERE pid='$pid' AND type='L'");$htCODE_Live = $ht_live_result['htcode'];
您
我正在尝试检查是否存在MYSQL用户。这就是我所知道的一切。我不太喜欢从输出中获取答案。echo -e "What is the MYSQL username called" if [ -z "$DBUSER" ]
mysql -uUSER -pPASS -e "SELECT EXISTS(SELECT 1 FROM mysql.user WHERE
我试图在MySQL中执行PL/SQL语句。但是,当我试图创建一个表时,它会显示一个语法错误。ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQLEXIT WHEN practical2_sequence.CURRVAL >= 100; END; SELECT * FROM supplier;
帮助我,因为我在MySQL