我有以下代码:
ob_start();
$host="localhost"; // Host name
$username="admin"; // Mysql username
$password=""; // Mysql password
$db_name="my_db_m"; // Database name
$tbl_name="members"; // Table name
// Connect to server and select databse.
mysql_connect("$host&
我刚安装了Munin来监视我的网络和数据库服务器。我有很多插件都是现成的,但我需要一些建议,其中一个实际上是很好的关键指标来监控。
Disk IOs per device
Disk latency per device
Disk usage in percent
Inode usage in percent
Throughput per device
Utilization per device
Fork rate
Number of threads
Processes
Processes priority
VMstat
CPU usage
File table usage
Inode t
我为我的mysql数据库写了一个过程。这是sql:
SELECT C.ID, SQ_CASA, SQ_TRASF, PUNTI_CASA, PUNTI_TRASF
FROM CALENDARIO C
LEFT JOIN CAMPIONATI CA
ON CA.ID = C.IDCAMPIONATO
WHERE C.IDSTAGIONE = CALL `GET_STAGIONE`('2017')
我需要从另一个过程获取参数"IDSTAGIONE“,但此语法不正确。正确的方法是什么?
我正在尝试执行以下查询:
$query = "SELECT O. * AS NUM FROM (ab_order O)
LEFT JOIN ab_user U ON (O.id_user=U.id)
WHERE O.id IN ( SELECT OT.id_ab_order FROM ab_order_transaction OT
LEFT JOIN ab_transaction T ON (OT.id_ab_transaction = T.id)
LEFT JOIN ab_user U ON (T.id_user = U.id)
WH
在一个项目中,我开始使用MySQL作为数据库。我没有先检查,而是只做了一次插入,如果我得到了代码为1062的IntegrityError异常,我知道有一个重复的条目,并警告用户这样做或那样做。
它基本上看起来像这样:
try:
# add duplicate, nothing bad happens yet, is only in sqla session
db.session.add(User(email='already_used_email@address_that_has_to_be_unique.com'))
# commit, now the
我需要从数据库中的表‘group’中获取'groupLeader‘字段,并将其存储在一个变量中,然后将其与当前登录的用户名进行比较,但我得到了错误:
警告: mysql_numrows()希望参数1是资源,在第31行的/home/content/00/7923300/html/uber/tasks.php中给出对象
我目前的代码是:
$sq = "SELECT * FROM groups WHERE groupID='".$groupID."'";
$result=$db->query($sq);
$num=mysql_nu
我正在为一个网站建立一个自动数据库备份。当我尝试做备份时,它会出现错误“
MySQL error: The 'SHOW PROFILE' feature is disabled; you need MySQL built with 'enable-profiling' to have it working
Could not save backup of database information_schema in 'export/'
File successfully saved as unversed_MC_bans.1348661703.s