I am trying to insert multiple columns with their data from one table into another table, without a common column (i would expect a cross product in the result).
I am not sure how that's possible, because each of the two tables have varied number of columns, which rules out UNION on them.
I tried a Create..Select to create a 3rd table with all columns from both the tables but unsure about the syntax (keeps throwing syntax error).
Both Tables' syntax:
CREATE TABLE `t_modul` (
`ID` int(11) NOT NULL,
`Seriennummer` int(11) DEFAULT NULL,
`Bezeichnung` varchar(128) DEFAULT NULL,
`StandortID` int(11) NOT NULL,
`Firmwareversion` varchar(8) DEFAULT NULL,
`Optionen` int(11) DEFAULT NULL,
`Feldstärke` int(11) DEFAULT NULL,
`Platziert` bit(1) DEFAULT NULL,
`Sendeintervall` int(11) DEFAULT NULL,
`Batteriekapazitaet` int(11) DEFAULT NULL,
`Modulzusatzinfo` varchar(255) DEFAULT NULL,
`ModulUserinfo` varchar(128) DEFAULT NULL,
`ReadOutDate` varchar(40) DEFAULT NULL,
`ReduktionsIntervall` int(11) DEFAULT NULL,
`Startdatum` varchar(40) DEFAULT NULL,
`SAMTemperaturEin` double DEFAULT NULL,
`SAMTemperaturAus` double DEFAULT NULL,
`SAMCoolingOff` int(11) DEFAULT NULL,
`SAMCoolingOn` int(11) DEFAULT NULL,
`SAMCoolingOffMax` double DEFAULT NULL,
`SAMCoolingOnMin` double DEFAULT NULL,
`SAMParameterField` int(11) DEFAULT NULL,
`SAMIsAlarmMelder` bit(1) DEFAULT NULL,
`SAMNv27` int(11) DEFAULT NULL,
`Hardwarekonfiguration` int(11) DEFAULT NULL,
`Anwendungskonfiguration` int(11) DEFAULT NULL,
`Logkonfiguration` int(11) DEFAULT NULL,
`Archivsendezeit_0` int(11) DEFAULT NULL,
`Archivsendezeit_1` int(11) DEFAULT NULL,
`IsLogger` bit(1) DEFAULT NULL,
`Datenpunktkennung` varchar(128) DEFAULT NULL,
`TTRFtpARCHPollDoneDate` varchar(40) DEFAULT NULL,
`Repeaternummer` int(11) DEFAULT NULL,
`StammdatenID` int(11) DEFAULT NULL,
PRIMARY KEY (`ID`),
KEY `ID_Standort_idx` (`StandortID`),
CONSTRAINT `ID_StandOrt` FOREIGN KEY (`StandortID`) REFERENCES `t_standorte` (`ID`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `sensors` (
`sensorID` bigint(11) NOT NULL,
`Number` bigint(20) unsigned NOT NULL,
`ValueIDs` text NOT NULL,
`MeasureTime` datetime NOT NULL,
`StartTime` datetime NOT NULL,
`Configuration` int(10) unsigned NOT NULL,
`LogCycle` int(11) NOT NULL,
`Alarms` text NOT NULL,
`AlarmType` int(11) NOT NULL,
PRIMARY KEY (`GesySenseID`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
UNION query:
CREATE TABLE sensors_1
SELECT * FROM `sensors`
UNION
SELECT * FROM `t_modul`;
could someone help me out?
thank you
CREATE TABLE sensors_1
AS (SELECT * FROM `sensors`
UNION
SELECT * FROM `t_modul`);
this answer suggested to me worked:
CREATE TABLE t_cross_result AS
SELECT *
FROM t_modul CROSS JOIN sensors
Related
mysql Ver 14.14 Distrib 5.1.73, for redhat-linux-gnu (x86_64) using readline 5.1
I am taking over a project. It is very old and the original programmer is long gone. No one has any idea why certain decisions were made.
The following query runs (on my Mac) in 9.5 seconds but if I remove the last JOIN then it drops to 2.5 seconds. What is wrong with that last JOIN?
select `ttl`.`id` AS `id`,
`ttl`.`name` AS `name`,
`ttl`.`updated_at` AS `last_update_on`,
`ttl`.`user_id` AS `list_creator`,
`ttl`.`retailer_nomination_list` AS `nomination_list`,
`ttl`.`created_at` AS `created_on`,
count(distinct `tlb`.`title_id`) AS `title_count`
from `haha_title_lists` `ttl`
left join `haha_title_list_to_users` `tltu` on((`ttl`.`id` = `tltu`.`title_list_id`))
left join `users` `u` on((`tltu`.`user_id` = `u`.`id`))
left join `users` `u2` on((`tltu`.`user_id` = `u2`.`id`))
left join `haha_title_list_to_venues` `tlv` on((`ttl`.`id` = `tlv`.`title_list`))
left join `haha_venue_properties` `tvp` on((`tlv`.`venue_id` = `tvp`.`id`))
join `haha_title_list_to_books` `tlb` on((`ttl`.`id` = `tlb`.`title_list_id`))
join `wawa_title` `ot` on((`tlb`.`title_id` = `ot`.`title_id`))
group by `ttl`.`id`;
The tables:
CREATE TABLE `haha_title_list_to_books` (
`id` int(11) unsigned NOT NULL AUTO_INCREMENT,
`title_id` int(11) NOT NULL,
`title_list_id` int(11) NOT NULL,
`sdk` varchar(15) COLLATE utf8_unicode_ci NOT NULL DEFAULT '',
`created_at` datetime NOT NULL,
`promo_start_date` date DEFAULT NULL,
`promo_end_date` date DEFAULT NULL,
`promo_price` float DEFAULT NULL,
`confirmations` varchar(255) COLLATE utf8_unicode_ci DEFAULT NULL,
`nominations` varchar(255) COLLATE utf8_unicode_ci DEFAULT NULL,
`title_note` text COLLATE utf8_unicode_ci,
`executed` int(11) DEFAULT NULL,
`event_created` int(11) DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `idx_promo_start_date` (`promo_start_date`),
KEY `idx_promo_end_date` (`promo_end_date`),
KEY `idx_title_list_to_books_title_id` (`title_id`),
KEY `idx_title_list_to_books_title_list_id` (`title_list_id`)
) ENGINE=MyISAM AUTO_INCREMENT=21847 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci
and:
CREATE TABLE `wawa_title` (
`title_id` int(11) NOT NULL AUTO_INCREMENT,
`title` varchar(200) DEFAULT NULL,
`title_alpha` varchar(25) NOT NULL,
`display_title` varchar(200) NOT NULL,
`subtitle` text NOT NULL,
`sdk10` varchar(13) DEFAULT '',
`sdk13` varchar(15) DEFAULT NULL,
`primary_sdk13` varchar(15) DEFAULT NULL,
`asin` varchar(10) DEFAULT NULL,
`pub_season` varchar(15) NOT NULL,
`pub_year` varchar(15) NOT NULL,
`bisac1` varchar(15) NOT NULL,
`bisac2` varchar(15) NOT NULL,
`bisac3` varchar(15) NOT NULL,
`barcode` varchar(30) DEFAULT NULL,
`dewey_decimal` varchar(15) NOT NULL,
`lib_of_congress` varchar(15) NOT NULL,
`spanish_language` tinyint(4) NOT NULL,
`target_audience` tinyint(3) unsigned DEFAULT NULL,
`language` varchar(20) DEFAULT NULL,
`edition` varchar(45) DEFAULT NULL,
`pages` int(11) DEFAULT NULL,
`number_in_series` int(11) DEFAULT NULL,
`trimsize` varchar(10) DEFAULT NULL,
`filesize` varchar(10) DEFAULT NULL,
`duration_hours` int(11) DEFAULT NULL,
`duration_minutes` int(11) DEFAULT NULL,
`discs` int(11) DEFAULT NULL,
`download` date DEFAULT NULL,
`size_unit` varchar(15) NOT NULL DEFAULT '',
`digitization_date` date NOT NULL,
`us_on_sale_date` date NOT NULL,
`aus_on_sale_date` date NOT NULL,
`can_on_sale_date` date NOT NULL,
`uk_on_sale_date` date NOT NULL,
`us_list_price` varchar(10) NOT NULL,
`aus_list_price` varchar(10) NOT NULL,
`can_list_price` varchar(10) NOT NULL,
`uk_list_price` varchar(10) NOT NULL,
`isPrimary` varchar(1) DEFAULT NULL,
`modified` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`modifier` int(11) NOT NULL,
`activated` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
`active` varchar(3) NOT NULL DEFAULT 'N',
`flagged_string` text,
`created` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
`assets_id` varchar(20) DEFAULT NULL,
`book_details` text,
`book_keynote` text,
`exclude_goodreads` char(1) NOT NULL DEFAULT 'N',
`series_description` text,
`review_quote1` text,
`territory_id` int(11) DEFAULT '27',
`featured_newsletter_id` tinyint(3) unsigned DEFAULT '0',
`retailer_discovery_check` datetime DEFAULT NULL,
`suppress_retailer_approval` tinyint(1) DEFAULT '0',
`suppress_retailer_approval_reason` varchar(255) DEFAULT NULL,
`ebb_description` text CHARACTER SET utf8 COLLATE utf8_unicode_ci,
`slug` varchar(150) DEFAULT NULL,
`legacy_slug` varchar(150) DEFAULT NULL,
`us_agency_price` varchar(10) DEFAULT NULL,
`firebrand_title_id` int(11) DEFAULT NULL,
`ebb_label` varchar(200) DEFAULT NULL,
`ebb_end_sale_date` date DEFAULT NULL,
`ebb_downprice` decimal(10,2) DEFAULT NULL,
`book_club` varchar(1) DEFAULT NULL,
`best_seller` varchar(1) DEFAULT NULL,
`award_winner` varchar(1) DEFAULT NULL,
`discovery` char(1) NOT NULL DEFAULT 'Y',
`narrator_id` int(11) DEFAULT NULL,
`suppress_series_data` varchar(255) DEFAULT NULL,
PRIMARY KEY (`title_id`),
KEY `active_index` (`active`),
KEY `fk_title_series_id_idx` (`series_id`),
KEY `series_id` (`series_id`),
KEY `idx_title_sdk13` (`sdk13`),
KEY `idx_title_active_isprimary` (`active`,`isPrimary`),
KEY `bisac1` (`bisac1`),
KEY `bisac2` (`bisac2`),
KEY `bisac3` (`bisac3`),
KEY `idx_primary_sdk13` (`primary_sdk13`),
KEY `idx_territory_id` (`territory_id`),
CONSTRAINT `fk_title_series_id` FOREIGN KEY (`series_id`) REFERENCES `wawa_series` (`series_id`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB AUTO_INCREMENT=19700 DEFAULT CHARSET=utf8 |
If I remove this line:
join `wawa_title` `ot` on((`tlb`.`title_id` = `ot`.`title_id`))
The query speed drops from 9.5 seconds to 2.5 seconds. Not great, but a huge improvement.
And yet, both tables have indexes on table_id, so why would that line be a problem?
I notice that one table is InnoDB and the other is MyISAM. Would that have an effect?
Do not JOIN to tables that you don't use.
A JOIN often "explodes" the number of rows, then a GROUP BY like you have reels in the number of rows. To see this, leave all the JOINs there, but remove the GROUP BY. See how many rows you get.
To avoid part of that explosion, change
count(distinct `tlb`.`title_id`) AS `title_count`
to
( SELECT count(distinct `title_id`)
FROM `haha_title_list_to_books`
WHERE `ttl`.`id` = `title_list_id`
) AS `title_count`
and remove the current JOIN to tlb.
Mixing MyISAM and InnoDB should not have any direct impact on this SELECT. However, you should consider moving all of your tables to InnoDB.
Created these two tables successfully
First table
CREATE TABLE IF NOT EXISTS `lawncare_user` (
`ID` int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
`FirstName` varchar(255) NOT NULL,
`LastName` varchar(255) NOT NULL,
`Email` varchar(255) NOT NULL,
`UserType` varchar(30) NOT NULL,
`UserName` varchar(255) NOT NULL,
`Password` varchar(255) NOT NULL,
`AddedBy` int(11) NOT NULL,
`AddedOn` date NOT NULL,
`ModifiedOn` date DEFAULT NULL,
`Status` BOOLEAN NOT NULL DEFAULT '0',
`QuestionID` int(11) DEFAULT NULL,
`QuestionAnswer` text DEFAULT NULL,
`Params` text NOT NULL,
`Address` text NOT NULL,
`Country` varchar(300) NOT NULL,
`State` varchar(300) NOT NULL,
`City` varchar(300) NOT NULL,
`ContactNo` double DEFAULT NULL,
`Activation` BOOLEAN NOT NULL DEFAULT '0',
`ActivatedOn` date DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
Second table
CREATE TABLE IF NOT EXISTS `lawncare_customer` (
`ID` int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
`FirstName` varchar(255) NOT NULL,
`LastName` varchar(255) NOT NULL,
`Email` varchar(255) NOT NULL,
`Password` varchar(255) NOT NULL,
`ContactNo` varchar(20) NOT NULL,
`Address` varchar(255) NOT NULL,
`Params` text NOT NULL,
`Province` varchar(255) NOT NULL,
`ZipCode` varchar(255) NOT NULL,
`Status` Boolean NOT NULL DEFAULT '0',
`AddedBy` int(11) NOT NULL,
`AddedOn` date NOT NULL,
`ModifiedOn` date DEFAULT NULL
) ENGINE =InnoDB DEFAULT CHARSET=latin1;
But while creating third table as
CREATE TABLE IF NOT EXISTS `lawncare_message` (
`ID` int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
`Reason` int(5) NOT NULL,
`Subject` text NOT NULL,
`Description` text NOT NULL,
`Customer` int(11) NOT NULL,
`CustomerUser` varchar(255) NOT NULL,
`CustomerEmail` varchar(255) NOT NULL,
`SendTo` int(11) NOT NULL,
`SendToUser` varchar(255) NOT NULL,
`SendToEmail` varchar(255) NOT NULL,
`Status` int(5) NOT NULL DEFAULT '0',
`AddedBy` int(11) NOT NULL,
`AddedOn` date NOT NULL
FOREIGN KEY (SendTo, SendToUser, SendToEmail)
REFERENCES lawncare_user(ID, UserName, Email)
ON UPDATE CASCADE ,
FOREIGN KEY (Customer, CustomerUser, CustomerEmail)
REFERENCES lawncare_customer(ID, FirstName,Email)
ON UPDATE CASCADE
) ENGINE =InnoDB DEFAULT CHARSET=latin1
I get #1215 - Cannot add foreign key constraint , error in mysql tried adding foreign keys after creating table but it still gives the same error. I don't know what I'm doing wrong here.
First of all Check whether you have applied indexes on the keys.
As per your code their is no point in referencing id,UserName and Email.
Only id is enough for referencing.
Check the following code
CREATE TABLE IF NOT EXISTS `lawncare_message` (
`ID` int(11) NOT NULL AUTO_INCREMENT PRIMARY KEY,
`Reason` int(5) NOT NULL,
`Subject` text NOT NULL,
`Description` text NOT NULL,
`Customer` int(11) NOT NULL,
`CustomerUser` varchar(255) NOT NULL,
`CustomerEmail` varchar(255) NOT NULL,
`SendTo` int(11) NOT NULL,
`SendToUser` varchar(255) NOT NULL,
`SendToEmail` varchar(255) NOT NULL,
`Status` int(5) NOT NULL DEFAULT '0',
`AddedBy` int(11) NOT NULL,
`AddedOn` date NOT NULL,
FOREIGN KEY (SendTo)
REFERENCES lawncare_user(ID)
ON UPDATE CASCADE ,
FOREIGN KEY (Customer)
REFERENCES lawncare_customer(ID)
ON UPDATE CASCADE
) ENGINE =InnoDB DEFAULT CHARSET=latin1
I have following structure on mysql database:
sqlfiddle
What I want to do is:
To select DISTINCT industry from Company table
To insert into Industry table first and get auto incremented ID
With this ID to insert again into IndustryTranslation table and set "language"="en"
To insert Company's id and newly generated Industry's id into MapCompanyIndustry table
I know that it's not possible with one statement. But definitely it's possible with transaction. Can't figure out how to achieve this result with one transaction.
Any suggestions?
Schema
CREATE TABLE `Industry` (
`id` int(4) unsigned NOT NULL AUTO_INCREMENT,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `IndustryTranslation` (
`industryID` int(4) unsigned NOT NULL,
`language` varchar(5) NOT NULL,
`name` varchar(255) NOT NULL,
`confirmed` tinyint(1) DEFAULT '0',
PRIMARY KEY (`industryID`,`language`),
KEY `language` (`language`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `Company` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`name` varchar(255) DEFAULT NULL,
`imageUri` varchar(255) DEFAULT NULL,
`countryID` int(3) unsigned DEFAULT NULL,
`phone` varchar(255) DEFAULT NULL,
`email` varchar(255) DEFAULT NULL,
`verified` tinyint(1) DEFAULT NULL,
`industry` varchar(255) DEFAULT NULL,
`headquarters` varchar(255) DEFAULT NULL,
`uri` varchar(255) DEFAULT NULL,
`createdAt` timestamp NULL DEFAULT CURRENT_TIMESTAMP,
`updatedAt` timestamp NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`),
KEY `countryID` (`countryID`)
) ENGINE=InnoDB AUTO_INCREMENT=4004 DEFAULT CHARSET=utf8;
CREATE TABLE `MapCompanyIndustry` (
`companyID` int(10) unsigned NOT NULL,
`industryID` int(4) unsigned NOT NULL,
PRIMARY KEY (`companyID`,`industryID`),
KEY `industryID` (`industryID`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
I am running a update statement:
UPDATE ACTION a
INNER JOIN subscriberinfo s ON a.subscriberId=s.id
SET a.exceedusage = (SELECT FORMAT(((SUM(dataVolumeDownLink + dataVolumeUpLink))/1048576),2)
FROM cdr c
WHERE c.msisdn=s.msisdn
AND c.eventDate>=a.createdon
AND c.eventDate <= a.actionTakenOn)
WHERE a.remark='Reason : Data limit crossed'
AND a.exceedusage IS NULL;
But its taking too much time because of CDR table(millions of row). Is there any way I can rewrite this query so it can work fast?
EDIT:
Table structure of Action:
CREATE TABLE `action` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`actionTakenOn` datetime DEFAULT NULL,
`actionType` varchar(255) DEFAULT NULL,
`cdrCreatedOn` datetime DEFAULT NULL,
`cdrEventDate` datetime DEFAULT NULL,
`createdOn` datetime DEFAULT NULL,
`errorDescription` longtext,
`params` longtext,
`remark` longtext,
`requestedOn` datetime DEFAULT NULL,
`status` varchar(255) DEFAULT NULL,
`subscriberDetails` longtext,
`takenBy` varchar(255) DEFAULT NULL,
`subscriberId` bigint(20) DEFAULT NULL,
`ticketId` bigint(20) DEFAULT NULL,
`dataPlanEndTime` datetime DEFAULT NULL,
`dataPlanStartTime` datetime DEFAULT NULL,
`dataUsage` bigint(20) DEFAULT NULL,
`dataplanName` varchar(255) DEFAULT NULL,
`exceedUsage` bigint(20) DEFAULT NULL,
`isNotified` bit(1) DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `FKAB2F7E36E90F678D` (`subscriberId`),
KEY `FKAB2F7E3664633B07` (`ticketId`)
) ENGINE=MyISAM AUTO_INCREMENT=81534 DEFAULT CHARSET=latin1;
for Subscriberinfo:
CREATE TABLE `subscriberinfo` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`imsi` varchar(255) DEFAULT NULL,
`simType` varchar(45) DEFAULT NULL,
`dataPlanStartTime` datetime DEFAULT NULL,
`dataPlanEndTime` datetime DEFAULT NULL,
`dataplan` varchar(255) DEFAULT NULL,
`status` varchar(255) DEFAULT NULL,
`validDays` varchar(255) DEFAULT NULL,
`deviceName` varchar(500) DEFAULT NULL,
`lastDataPlanUpdatedOn` datetime DEFAULT NULL,
`lastDeviceUpdatedOn` datetime DEFAULT NULL,
`createdOn` datetime DEFAULT NULL,
`dataplanType` varchar(255) DEFAULT NULL,
`msisdn` bigint(20) DEFAULT NULL,
`dataLeft` bigint(20) DEFAULT NULL,
`billingSysDataPlanEndTime` datetime DEFAULT NULL,
`billingSysDataPlanStartTime` datetime DEFAULT NULL,
`billingSysValidDays` int(11) DEFAULT NULL,
`dataUsage` bigint(20) DEFAULT NULL,
`planDetail` varchar(255) DEFAULT NULL,
`currentSpeedLimit` varchar(255) DEFAULT NULL,
`lastBillingSysUpdatedOn` datetime DEFAULT NULL,
`lastUpdatedOn` datetime DEFAULT NULL,
`deviceType` varchar(255) DEFAULT NULL,
`lastImsiUpdatedOn` datetime DEFAULT NULL,
`skipCheck` tinyint(1) NOT NULL,
`active` tinyint(1) NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `msisdn_UNIQUE` (`msisdn`)
) ENGINE=InnoDB AUTO_INCREMENT=49032 DEFAULT CHARSET=latin1;
for CDR:
CREATE TABLE `cdr` (
`id` bigint(20) NOT NULL AUTO_INCREMENT,
`dataPacketDownLink` bigint(20) DEFAULT NULL,
`dataPacketUpLink` bigint(20) DEFAULT NULL,
`dataPlanEndTime` datetime DEFAULT NULL,
`dataPlanStartTime` datetime DEFAULT NULL,
`dataVolumeDownLink` bigint(20) DEFAULT NULL,
`dataVolumeUpLink` bigint(20) DEFAULT NULL,
`dataplan` varchar(255) DEFAULT NULL,
`dataplanType` varchar(255) DEFAULT NULL,
`createdOn` datetime DEFAULT NULL,
`deviceName` varchar(500) DEFAULT NULL,
`duration` int(11) NOT NULL,
`effectiveDuration` int(11) NOT NULL,
`hour` int(11) DEFAULT NULL,
`eventDate` datetime DEFAULT NULL,
`msisdn` bigint(20) DEFAULT NULL,
`quarter` int(11) DEFAULT NULL,
`validDays` int(11) DEFAULT NULL,
`dataLeft` bigint(20) DEFAULT NULL,
`completedOn` datetime DEFAULT NULL,
`causeForRecClosing` bigint(20) DEFAULT NULL,
`roaming` tinyint(1) DEFAULT NULL,
`servedBSAddress` varchar(255) DEFAULT NULL,
`simType` varchar(255) DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `idx_msisdn` (`msisdn`)
) ENGINE=MyISAM AUTO_INCREMENT=2580713 DEFAULT CHARSET=latin1;
UPDATE ACTION a
INNER JOIN subscriberinfo s ON a.subscriberId=s.id
INNER JOIN (SELECT FORMAT(((SUM(dataVolumeDownLink + dataVolumeUpLink))/1048576),2) as val,
msisdn
FROM cdr c
WHERE
c.eventDate>=a.createdon
AND c.eventDate <= a.actionTakenOn) sub on sub.msisdn=s.msisdn
SET a.exceedusage = sub.val
WHERE a.remark='Reason : Data limit crossed'
AND a.exceedusage IS NULL;
I would move the subquery into FROM (actually FROM in select and UPDATE section for the query) to let it be executed just once.
Possibly change the whole thing to a series of JOIN.
This is very much a guess (I am not sure on how your tables hang together, hence not sure on the GROUP BY), but maybe something like this:-
UPDATE ACTION a
INNER JOIN subscriberinfo s ON a.subscriberId=s.id
INNER JOIN cdr c ON c.msisdn=s.msisdn AND c.eventDate BETWEEN a.createdon AND a.actionTakenOn
SET a.exceedusage = FORMAT(((SUM(c.dataVolumeDownLink + c.dataVolumeUpLink))/1048576),2)
WHERE a.remark='Reason : Data limit crossed'
AND a.exceedusage IS NULL
GROUP BY a.subscriberId;
I have a sql-statement which correctly fetches data from one table. However, I need to fetch in the same way from n number of tables named table_n. All of these tables contain a 3-field primary key of projid, docid and revnr. I need to return n as docType as well, to differentiate the tables. The result will be sorted by projid and/or docid.
I tried sorting all the outputs from the different queries in PHP but it was way too slow (at least a few seconds on a 3MB database). I'm convinced MySQL/MSSQL will do it faster.
This is my current query:
SELECT a.* FROM `table_1` a
INNER JOIN (SELECT docid,
Max(revnr) max_val
FROM `table_1`
WHERE ( projid = something )
GROUP BY docid) b
ON a.docid = b.docid
AND a.revnr = b.max_val ORDER BY docid DESC
My current query gets the rows with highest revnr for each docid and projid.
I'm developing on MySQL but I need it to work on MSSQL as well. A general SQL solution would be great.
Thanks!
EDIT: Table schemas of the tables i currently have:
CREATE TABLE IF NOT EXISTS `table_1` (
`projid` int(11) NOT NULL,
`docid` int(11) NOT NULL,
`revnr` int(11) NOT NULL,
`revname` varchar(64) NOT NULL,
`signedOn` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`sign` int(11) NOT NULL,
`ritningsnr` varchar(128) NOT NULL,
`moment` varchar(256) NOT NULL,
`omrade` varchar(256) NOT NULL,
`start` datetime NOT NULL,
`stop` datetime NOT NULL,
`extTodo` int(11) NOT NULL,
PRIMARY KEY (`projid`,`docid`,`revnr`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='egenkontroll';
CREATE TABLE IF NOT EXISTS `table_2` (
`projid` int(11) NOT NULL,
`docid` int(11) NOT NULL,
`revnr` int(11) NOT NULL,
`revname` varchar(64) NOT NULL,
`signedOn` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`sign` int(11) NOT NULL,
`extWater` int(11) NOT NULL,
`extRisk` int(11) NOT NULL,
`extSystem` int(11) NOT NULL,
`extHelp` int(11) NOT NULL,
`extProvtryck` int(11) NOT NULL,
`extDoc` int(11) NOT NULL,
`extEgenkontroll` int(11) NOT NULL COMMENT 'exttabell',
`extOther` int(11) NOT NULL,
`extMontorer` int(11) NOT NULL,
PRIMARY KEY (`projid`,`docid`,`revnr`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COMMENT='arbetsberedning';
CREATE TABLE IF NOT EXISTS `table_3` (
`projid` int(11) NOT NULL,
`docid` int(11) NOT NULL,
`revnr` int(11) NOT NULL,
`revname` varchar(64) NOT NULL,
`adress` varchar(256) NOT NULL,
`pipesMark` tinyint(1) NOT NULL,
`pipesKulvert` tinyint(1) NOT NULL,
`pipesBasement` tinyint(1) NOT NULL,
`pipesVaning` tinyint(1) NOT NULL,
`pipesIngjutna` tinyint(1) NOT NULL,
`ledningTappvatten` tinyint(1) NOT NULL,
`ledningVarmevatten` tinyint(1) NOT NULL,
`ledningHetvatten` tinyint(1) NOT NULL,
`ledningKylaPrim` tinyint(1) NOT NULL,
`ledningKylaSek` tinyint(1) NOT NULL,
`ledningGas` tinyint(1) NOT NULL,
`ledningLuft` tinyint(1) NOT NULL,
`ledningAvlopp` tinyint(1) NOT NULL,
`ledningOther` varchar(512) NOT NULL,
`materialGjutjarn` tinyint(1) NOT NULL,
`materialSteel` tinyint(1) NOT NULL,
`materialKoppar` tinyint(1) NOT NULL,
`materialPlast` tinyint(1) NOT NULL,
`materialRostfritt` tinyint(1) NOT NULL,
`materialOther` varchar(512) NOT NULL,
`omfattningLength` int(11) NOT NULL COMMENT 'meter',
`omfattningDimension` varchar(16) NOT NULL,
`omfattningRitningnr` varchar(128) NOT NULL,
`doneWithPump` tinyint(1) NOT NULL,
`doneWithVattenledning` tinyint(1) NOT NULL,
`doneWithKompressor` tinyint(1) NOT NULL,
`doneWithTathetsprovare` tinyint(1) NOT NULL,
`tryckmedieVatten` tinyint(1) NOT NULL,
`tryckmedieLuft` tinyint(1) NOT NULL,
`tryckmedieOther` varchar(128) NOT NULL,
`manometerDiameter` int(11) NOT NULL COMMENT 'mm',
`manometerGradering` int(11) NOT NULL COMMENT 'kPa',
`manometerReadPressure` int(11) NOT NULL,
`manometerTid` int(11) NOT NULL COMMENT 'sekunder',
`testedOn` datetime NOT NULL,
`testedBy` varchar(128) NOT NULL COMMENT '"id_" + (userid)',
`comments` varchar(1024) NOT NULL,
`commentsBy` varchar(128) NOT NULL COMMENT '"id_" + (userid)',
`signedOn` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`sign` int(11) NOT NULL,
PRIMARY KEY (`projid`,`docid`,`revnr`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
The fields I need are projid, docid, revnr, revname, signedOn, sign and are present in all current and future tables.