I'm trying to move my website from my old server to the new server at Vultr.
However, while importing the database I encountered a very annoying issue, which I spent and hours on and still couldn't fix it.
The error is happening due to the DateTime which I think needs to be converted to timestamp, however, the database is too large to be converted one by one.
Here is the error anyway:
Error at the line 111680: ) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4
COLLATE=utf8mb4_unicode_ci;
Query: --
--
CREATE TABLE `mvmnvu_links` (
`link_id` bigint(20) UNSIGNED NOT NULL,
`link_url` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
`link_name` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
`link_image` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
`link_target` varchar(25) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
`link_description` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT
'',
`link_visible` varchar(20) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT 'Y',
`link_owner` bigint(20) UNSIGNED NOT NULL DEFAULT '1',
`link_rating` int(11) NOT NULL DEFAULT '0',
`link_updated` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
`link_rel` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '',
`link_notes` mediumtext COLLATE utf8mb4_unicode_ci NOT NULL,
`link_rss` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT ''
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
MySQL: Invalid default value for 'link_updated'
Stopped on error
Any quick solutions for this?
Thank you.
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I have a list of contents on my website and it is getting filled with records rapidly, for example after one month, there are 300K records in it. Because of this, the list page is responding slower and slower over time.
This page has this functionalities:
Searching
Paging
Also this table Left Joins other tables and it increases the run-time.
I run two queries every time this page is loaded, one for getting 10 limited records, and the other for getting number of all records.
How do I handle this amount of data with out jeopardizing user experience?
EDIT
Here is my Query:
SELECT *,
`note`.`attached_file` AS `attached_file`,
`note`.`description` AS `description`,
`note`.`id` AS `id`,
`note_type`.`title` AS `title`,
`note_goal`.`title` AS `goal`
FROM `note`
LEFT JOIN `contact` ON `note`.`id_contact`=`contact`.`id`
LEFT JOIN `contact_activity_field` ON `contact_activity_field`.`id_contact`=`contact`.`id`
LEFT JOIN `activity` ON `contact_activity_field`.`id_activity`=`activity`.`id`
LEFT JOIN `note_type` ON `note`.`title`=`note_type`.`id`
LEFT JOIN `note_goal` ON `note`.`goal`=`note_goal`.`id`
WHERE
( `note_type`.`title` LIKE '%$q%' OR
`firstname_eng` LIKE '%$q%' OR
`lastname_eng` LIKE '%$q%' OR
`firstname_per` LIKE '%$q%' OR
`lastname_per` LIKE '%$q%' OR
`company_name` LIKE '%$q%' OR
`company_name_per` LIKE '%$q%' OR
`description` LIKE '%$q%' OR
`note_goal`.`title` LIKE '%$q%' ) AND some other condition
GROUP BY `note`.`id`
ORDER BY `note`.`id` DESC
LIMIT $start_from, 10
EDIT 2
note table
CREATE TABLE `note` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`id_user` int(10) NOT NULL,
`id_contact` int(10) NOT NULL,
`title` int(10) DEFAULT NULL,
`goal` int(10) DEFAULT NULL,
`register_date` date DEFAULT NULL,
`description` text COLLATE utf8_unicode_ci,
`attached_file` varchar(500) COLLATE utf8_unicode_ci DEFAULT NULL,
`meeting_place` text COLLATE utf8_unicode_ci,
`start_time` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
`finish_time` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3297 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
contact table
CREATE TABLE `contact` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`id_user` int(10) NOT NULL DEFAULT '0',
`id_user_registered` int(10) DEFAULT NULL,
`code` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
`contact_type` varchar(20) COLLATE utf8_unicode_ci DEFAULT 'legal',
`firstname_eng` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`lastname_eng` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`firstname_per` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`lastname_per` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`gender` varchar(10) COLLATE utf8_unicode_ci DEFAULT NULL,
`id_number` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL,
`national_code` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL,
`birth_date` date DEFAULT NULL,
`company_name` varchar(500) COLLATE utf8_unicode_ci DEFAULT NULL,
`company_name_per` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`recommender_eng` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`recommender_per` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`company_type` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
`registration_type` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
`registration_date` date DEFAULT '1900-01-01',
`registration_number` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL,
`national_id` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL,
`economic_code` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL,
`website` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`postal_code` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
`address_eng` text COLLATE utf8_unicode_ci,
`address_per` text COLLATE utf8_unicode_ci,
`phone_number` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`email` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`fax` varchar(1000) COLLATE utf8_unicode_ci DEFAULT NULL,
`activity_comment` text COLLATE utf8_unicode_ci,
`level` varchar(50) COLLATE utf8_unicode_ci DEFAULT 'Basic',
`guild` varchar(500) COLLATE utf8_unicode_ci DEFAULT NULL,
`verify_comment` text COLLATE utf8_unicode_ci,
`status` int(1) NOT NULL DEFAULT '0',
`comment` text COLLATE utf8_unicode_ci,
`submitted` int(1) NOT NULL DEFAULT '0',
`assign_date` datetime DEFAULT NULL,
`created_date` datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,
`updated_date` datetime DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`),
KEY `id` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=57357 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
And other tables just contain a simple id and title records.
Here is the result of EXPLAIN query:
These results are on my local database.
LIKE with a leading wild card is inefficient -- and will scan the entire table, hence the "slower as it gets bigger". Switch to FULLTEXT.
Pagination via OFFSET is inefficient because it must scan all the rows befoer the few desired. See http://mysql.rjweb.org/doc.php/pagination
Both of these have been discussed on stackoverflow repeatedly. Search for other discussions.
I have been having this reoccurring problem when attempting to import a .sql file into MySQL, Here is what I get
ERROR
SQL Query:
CREATE TABLE `ADMINS` (
`id` int(11) NOT NULL auto_increment,
`client_id` varchar(80) NOT NULL default '',
`client_pw` varchar(16) default NULL,
`client_school` varchar(16) default NULL,
`client_expdate` date default '0000-00-00',
`client_fullname` varchar(50) default NULL,
`webinfo` mediumtext,
`webinfodate` date default NULL,
`LastUpdate` timestamp(14) NOT NULL,
`user_activation_key` varchar(60) default NULL,
`user_email` varchar(100) NOT NULL default '',
PRIMARY KEY (`id`)
) TYPE=MyISAM AUTO_INCREMENT=2 ;
MySQL Said:
#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 '(14) NOT NULL,
`user_activation_key` varchar(60) default NULL,
`user_email' at line 10
Timestamps don't have lengths. Change:
timestamp(14)
to
timestamp
The syntax is not correct, as pointed by John you do not need to the length for timestamp datatype. In addition type=myisam is deprecated and its engine=myisam now.
CREATE TABLE `ADMINS` (
`id` int(11) NOT NULL auto_increment,
`client_id` varchar(80) NOT NULL default '',
`client_pw` varchar(16) default NULL,
`client_school` varchar(16) default NULL,
`client_expdate` date default '0000-00-00',
`client_fullname` varchar(50) default NULL,
`webinfo` mediumtext,
`webinfodate` date default NULL,
`LastUpdate` timestamp NOT NULL,
`user_activation_key` varchar(60) default NULL,
`user_email` varchar(100) NOT NULL default '',
PRIMARY KEY (`id`)
) engine=MyISAM AUTO_INCREMENT=2 ;
While inserting first time it gives following error: "Result consisted of more than one row". When i try to insert record second time it gives error with message duplicate entry.
SQL=INSERT INTO `master_user` (`name`,`user_name`,`email`,`password`,`system_name_of_friend`,`system_no_of_friend`,`registered_from_site`,`registered_on`,`is_existing_user`) VALUES ('FirstName LastName','username','demo#mail.com','8c71eede42e38709e9e836021b0b9b9b','','','site','','1')
any one help will be appropriated and following is the table structure which will be get help to tracking this issue very easily and get the solution for this.
CREATE TABLE IF NOT EXISTS `master_user` (
`master_user_id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
`name` varchar(100) COLLATE utf8_unicode_ci NOT NULL,
`user_name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
`email` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`password` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`system_name_of_friend` varchar(100) COLLATE utf8_unicode_ci NOT NULL,
`system_no_of_friend` varchar(50) COLLATE utf8_unicode_ci NOT NULL,
`registered_from_ip` varchar(25) COLLATE utf8_unicode_ci DEFAULT NULL,
`registered_from_site` varchar(25) COLLATE utf8_unicode_ci DEFAULT NULL,
`registered_on` datetime DEFAULT NULL,
`is_existing_user` bit(1) NOT NULL DEFAULT b'0',
PRIMARY KEY (`master_user_id`),
UNIQUE KEY `ukMasterUser_email` (`email`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1293 ;
I have changed the few words from column Which are conflicting and resolved.
this code tested with both server and local phpmyadmin
on localhost it returned results as expected
on server it returned a good result but when passing the dr_name it returns empty result
here is the code:
SELECT * FROM doctor WHERE dr_name LIKE '%غا%' AND specialization=12 AND state=6
the only deference between server and local is that the server mysql engine is myisam and innodb on localhost
this is the create table statement:
CREATE TABLE IF NOT EXISTS `doctor` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`dr_name` varchar(65) NOT NULL,
`dr_name_e` varchar(65) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
`unique_name` varchar(75) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
`pass` char(40) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
`nickname` varchar(100) CHARACTER SET utf8 COLLATE utf8_unicode_ci DEFAULT NULL,
`specialization` int(11) NOT NULL,
`state` tinyint(4) NOT NULL,
`scientific_degree` int(11) DEFAULT NULL,
`university` int(11) DEFAULT NULL,
`grad_year` smallint(6) DEFAULT NULL,
`show_degree` tinyint(1) DEFAULT NULL,
`show_univ` tinyint(1) DEFAULT NULL,
`show_grad_year` tinyint(1) DEFAULT NULL,
`appendices` varchar(1000) CHARACTER SET utf8 COLLATE utf8_unicode_ci DEFAULT NULL,
`picture` varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci DEFAULT NULL,
`active` tinyint(1) NOT NULL DEFAULT '0',
`views` bigint(20) DEFAULT '0',
`search_result` bigint(20) DEFAULT '0',
`gender_male` tinyint(1) DEFAULT NULL,
`agent` int(11) DEFAULT NULL,
`next_step` tinyint(4) DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `unique_name` (`unique_name`),
KEY `university` (`university`),
KEY `scientific_degree` (`scientific_degree`),
KEY `specialization` (`specialization`),
KEY `agent` (`agent`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=31 ;
Do you have any idea why i get this:
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 '``, `title` varchar(255) collate latin1_general_ci NOT NULL default ``,' at line 3
The code is like this (the part im having problem with...)
$sql = 'CREATE TABLE `forum` (
`postid` bigint(20) NOT NULL auto_increment,
`author` varchar(255) collate latin1_general_ci NOT NULL default ``,
`title` varchar(255) collate latin1_general_ci NOT NULL default ``,
`post` mediumtext collate latin1_general_ci NOT NULL,
`showtime` varchar(255) collate latin1_general_ci NOT NULL default ``,
`realtime` bigint(20) NOT NULL default `0`,
`lastposter` varchar(255) collate latin1_general_ci NOT NULL default ``,
`numreplies` bigint(20) NOT NULL default `0`,
`parentid` bigint(20) NOT NULL default `0`,
`lastrepliedto` bigint(20) NOT NULL default `0`,
`author_avatar` varchar(30) collate latin1_general_ci NOT NULL default `default`,
`type` varchar(2) collate latin1_general_ci NOT NULL default `1`,
`stick` varchar(6) collate latin1_general_ci NOT NULL default `0`,
`numtopics` bigint(20) NOT NULL default `0`,
`cat` bigint(20) NOT NULL,
PRIMARY KEY (`postid`)
);';
mysql_query($sql,$con) or die(mysql_error());
Help would be greatly appreciated!
`author` varchar(255) collate latin1_general_ci NOT NULL default ``,
'author' is a column name, hence why it goes it backticks.
But the default '' is a value so it should be in quotation marks, not backticks, methinks.
If this is the case, same goes for all other defaults.
You are using backticks instead of quotes for strings. Change this:
default ``
to this:
default ''
The full statement should be:
CREATE TABLE `forum` (
`postid` bigint(20) NOT NULL auto_increment,
`author` varchar(255) collate latin1_general_ci NOT NULL default '',
`title` varchar(255) collate latin1_general_ci NOT NULL default '',
`post` mediumtext collate latin1_general_ci NOT NULL,
`showtime` varchar(255) collate latin1_general_ci NOT NULL default '',
`realtime` bigint(20) NOT NULL default '0',
`lastposter` varchar(255) collate latin1_general_ci NOT NULL default '',
`numreplies` bigint(20) NOT NULL default '0',
`parentid` bigint(20) NOT NULL default '0',
`lastrepliedto` bigint(20) NOT NULL default '0',
`author_avatar` varchar(30) collate latin1_general_ci NOT NULL default 'default',
`type` varchar(2) collate latin1_general_ci NOT NULL default '1',
`stick` varchar(6) collate latin1_general_ci NOT NULL default '0',
`numtopics` bigint(20) NOT NULL default '0',
`cat` bigint(20) NOT NULL,
PRIMARY KEY (`postid`)
);
Thanks for responses. I had actually done this before (putting ' instead of ` ), but it just showed me a blank page....
I figured out my problem. I either had to put backslash before each ' or just change the
$sql = 'CREATE TABLE `forum` (
to
$sql = "CREATE TABLE `forum` (
(note the quotes)
Thanks anyway, it helped me figure it out!