我编写了一个脚本来批处理域并检索每个域的数据。对于检索的每个域,它通过curl 连接到远程页面并一次检索30 个域所需的数据。
此页面通常需要 2 - 3 分钟来加载并返回卷曲结果,此时,详细信息将被解析并放入数组中(页面排名工具功能)。
通过 CRON 运行此脚本后,我不断收到错误“MySQL 服务器已消失”。
谁能告诉我我是否遗漏了一些可能导致此问题的明显原因?
// script dies after 4 mins in time for next cron to start
set_time_limit(240);
include('../include_prehead.php');
$sql = "SELECT id, url FROM domains WHERE (provider_id = 9 OR provider_id = 10) AND google_page_rank IS NULL LIMIT 30";
$result = mysql_query($sql);
$row = mysql_fetch_assoc($result);
do {
$url_list[$row['id']] = $row['url'];
} while ($row = mysql_fetch_assoc($result));
// curl domain information page - typically takes about 3 minutes
$pr = page_rank_tools($url_list);
foreach …Run Code Online (Sandbox Code Playgroud) 早上好,
我正在创建以下过程:
CREATE DEFINER=`root`@`localhost` PROCEDURE `insert_inventory_audit`(
IN `pitem_id` int,
IN `puser_id` int,
IN `pfield_name` varchar(265),
IN `pold_value` mediumtext,
IN `pnew_value` mediumtext
)
BEGIN
INSERT INTO inventory_audit (item_id, user_id, field_name, old_value, new_value)
VALUES (pitem_id, puser_id, pfield_name, pold_value, pnew_value);
END$$
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它正在从运行 MySQL 5.0.45 的旧服务器复制到运行 MySQL 5.5.19 的新服务器。
当我在新服务器上执行上述代码时,收到以下错误:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL
server version for the right syntax to use near '' at line 11
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这是否意味着 VALUES 括号内的每个条目都必须用 …
我正在尝试删除RDS MySQL实例中的数据库,我收到以下错误.有人可以帮我解决这个问题
[ec2-user@ip-10-10-1-14 ~]$ mysql -h wda2d.cmkridjjwpjp.ap-southeast-2.rds.amazonaws.com -u happy-p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 6241
Server version: 5.6.19-log MySQL Community Server (GPL)
Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. …Run Code Online (Sandbox Code Playgroud) 我正在运行这个 SQL 查询:
$regSql = "INSERT INTO orderregel(AANTAL) VALUES('$aant') WHERE TAAK_ID='$TkID'";
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我也试过这个:
$regSql = "INSERT INTO orderregel(AANTAL) VALUES('$aant') WHERE TAAK_ID=$TkID";
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但它都给出了这个错误:
您的 SQL 语法有错误;检查与您的 MySQL 服务器版本相对应的手册,了解在第 1 行的“WHERE TAAK_ID='13'”附近使用的正确语法
可能的解决方案是什么?
select FIELD
from TABLE
order by FIELD
LIMIT 1
OFFSET (select ceil(count(*)/2) from TABLE);
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我收到一个错误。是否可以以这种方式使用第二个选择语句,因为它只返回一个数字。如果不是,为什么?
我正在使用 Arch Linux。我已经通过 aurget 安装了 mysql。然后,当我尝试创建一些数据库时,我遇到了错误:"Can't connect to local MySql server through socket '/run/mysqld/mysqld.sock' (2)"我应该做什么来解决我的问题?
我们有一个表,仅用于更新查询需要将近 200-300 秒,总数据大小接近 3,357,196 行。我们有键附加到它,选择查询非常快。只有更新查询需要很多时间。
Mysql 数据库引擎:InnoDB
CREATE TABLE `t_strava_push` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`strava_user` int(20) DEFAULT NULL,
`strava_workout` varchar(20) COLLATE utf8_bin DEFAULT NULL,
`type` varchar(45) COLLATE utf8_bin DEFAULT NULL,
`aspect` varchar(45) CHARACTER SET utf8 DEFAULT NULL,
`event_time` int(20) DEFAULT NULL,
`body` varchar(255) COLLATE utf8_bin DEFAULT NULL,
`processed` int(1) NOT NULL DEFAULT '0',
`created_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP,
`updated_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`),
UNIQUE KEY `id_UNIQUE` (`id`),
KEY `strava_user` (`strava_user`),
KEY `strava_workout` …Run Code Online (Sandbox Code Playgroud) 我有一个这样的表:
CREATE TABLE event (
id BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(80) NOT NULL,
start_datetime TIMESTAMP NOT NULL DEFAULT '1970-01-01 00:00:01',
end_datetime TIMESTAMP NOT NULL DEFAULT '1970-01-01 00:00:01',
description TEXT,
created TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
modified TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3) ON UPDATE CURRENT_TIMESTAMP(3)
);
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插入这条新记录时没有错误:
insert into event (name, start_datetime, end_datetime)
value
('myName', '2020-01-05 18:00:00', '2020-01-07 23:59:00')
;
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但这条记录抛出错误:
insert into event (name, start_datetime, end_datetime)
value
('myName', '2045-01-05 18:00:00', '2045-01-07 23:59:00')
;
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错误是
Data truncation: Incorrect …Run Code Online (Sandbox Code Playgroud) 这个查询有什么问题?
INSERT INTO Registration
(`Status`, `String`)
VALUES
('Confirmed', '0')
WHERE `String` = '". mysql_real_escape_string($user) ."'
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1A:
UPDATE Registration
`Status` = 'Confirmed',
`String` = '0'
WHERE `String` = '". mysql_real_escape_string($user) ."'
Run Code Online (Sandbox Code Playgroud) 我正在使用Windows 7.我已经下载mysql-5.5.16-win32.zip并安装了它.我成功启动了MySQL服务器,但是我收到了这个错误:
C:\Program Files\Mysql\bin>mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.5.16 MySQL Community Server (GPL)
mysql> select user, host, password from mysql.user;
ERROR 1142 (42000): SELECT command denied to user ''@'localhost' for table 'user
'
mysql> mysql -u root -p
-> select user, host, password from mysql.user;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that
corresponds to your …Run Code Online (Sandbox Code Playgroud) mysql ×10
mysql-error-1064 ×10
sql ×5
sql-insert ×2
archlinux ×1
insert ×1
sql-drop ×1
timestamp ×1
where-clause ×1