CN1217270C - System for backing up isomerous data in same network and its realization method - Google Patents
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Abstract
The present invention provides a method and a system for backuping the data of an identical network heterogeneous system. The method comprises the steps that when an operation center requests to update and backup data, the operation center which requests to update or backup the data updates an inner database of the operation center, and an updating instruction is simultaneously sent to an identical network heterogeneous connector which is connected with the operation center; the updating instruction of the data coming from the operation center is converted into extensible mark language data to be transmitted to corresponding backup centers by the identical network heterogeneous connector; after the updating instruction of the data is received by all the backup centers, the corresponding data in a backup database is updated according to the received updating instruction of the data. The method can backup and recover the data of any system of the network without needs of carrying out any software development according to the data structure and the logical relation of any operation center. An identical network heterogeneous data backup system is simple and rapid to establish.
Description
Technical field
The present invention relates to a kind of method of system data and data being carried out the catastrophe backup, particularly a kind ofly prevent to hinder for some reason or catastrophe causes loss of data and method that the data in the system of a plurality of different platforms, disparate databases and different pieces of information structure in the network and data are backed up, and the system for backing up isomerous data in same network of setting up according to this method.
Background technology
Along with the continuous development of infotech, computing machine in the application of all trades and professions more and more widely, handled data volume is increasing, the work of being responsible for is also more and more important.Be the loss of data that prevents to cause because of accident or device damage, the importance of data backup is also just more and more obvious.Simultaneously, along with the widespread use of the Internet, the computer system of networking is more and more, if can carry out data backup and recovery automatically to these systems by network, then can greatly improve the reliability of system works and the efficient that the catastrophe situation is handled.Yet, for various reasons, a lot of operational centres all are according to separately needs stand-alone development, the department of computer science of the employing data base management system (DBMS) difference of unifying, the storage organization of data and logical relation are also different, and each backup center can only back up for an operational centre.
Present standby system is mainly realized data backup by following several modes.A kind of is to backup on the media such as tape by the data of certain time interval with a certain moment of operational centre, in time is delivered to the schedule backup of preserving away from the place of safety of operational centre.Schedule backup generally will be made the backup of at least two sets of data, and a cover is used for the inside of operational centre and recovers, and a cover is used for catastrophe and recovers, and wants the strange land to deposit.The subject matter of this backup mode is the recovery problem of isolated data.In addition because backup is not to carry out in real time, when catastrophe takes place not backed up data will lose, carrying out of reserve operation center business caused tremendous influence.
Another kind of mode is the backup mode that schedule backup adds critical data.This mode also will back up critical datas such as the daily record of Data Update or flowing water in time and get off to be sent to safe place, and be appended in the image copies in time by recovery routine and instrument outside schedule backup.When catastrophe took place, critical data can all effectively be recovered.Yet losing still of non-critical data may produce bigger influence to the running at reserve operation center.Simultaneously,, probably cause the distortion of restore data, can't recover original business datum fully if choosing of critical data is insufficient.
Having a kind of again is exactly the mode of asynchronous refresh of backing up in realtime.Be sent to standby system by tie line when this mode is in operation heart daily record with the Data Update operation log recording, and immediately the image data of standby system copy upgraded.The Data Update of standby system and the Data Update of operational centre are asynchronous, and what influence the performance of operational centre and the response time of concluding the business are not had.The subject matter of this backup method is that cost is too high.Owing to require the institutional framework of Backup Data and operational centre identical, each backup center is merely able to an operational centre is backed up, need to set up 200-300 backup center in a network that has 100 operational centres, the vacancy rate of each backup center is high too.
Also has a kind of mode of backing up in realtime and upgrading synchronously.This mode also is in operation simultaneously and data is upgraded operation in the heart and the standby system data being upgraded operation.The Data Update operation of operational centre had both write local disk, passed to the disk of standby system again by high-speed data communication lines, and the operational centre is before receiving that not standby system is finished the affirmation of Data Update operation, and return data does not upgrade the response of finishing.The standby system of this scheme is in the Hot Spare state, so the release time after the catastrophe generation is extremely short, mainly is the time that network switches.The subject matter of this method is too high to the rate request of communication line, and the distance of operational centre and backup center can not be too far away under present technical conditions, can't satisfy the requirement of catastrophe backup.Simultaneously, if require multiple duplication is carried out in an operational centre, the synchronous of each backup center also is a very problem of difficulty.
Summary of the invention
The objective of the invention is provides a kind of system to Compasite to carry out method of data backup at the problems referred to above, and the system for backing up isomerous data in same network of setting up according to this method, to overcome the deficiency of above-mentioned several standby systems.
According to an aspect of the present invention, provide a kind of system for backing up isomerous data in same network, this system comprises: a plurality of operational centres of carrying out information processing and storage data; A plurality of backup centers that the data of described operational centre are backed up, the backup database that comprises the data that are used to back up each operational centre lane database, be used for corresponding data in the backup database being upgraded in time to guarantee the conforming data backup module of Backup Data and certain operational centre data according to each bar Data Update instruction of being received, all data in the described backup database are stored with unified format, can not clash to guarantee data structures different in a plurality of operational centres; A plurality of and described operational centre is connected with described backup center, Data Update instruction transformation from each described operational centre is become the extend markup language form and is sent to described backup center, and the data that read from described backup center are become the required form in corresponding operational centre and are sent to the Compasite connector of described operational centre from the extend markup language format conversion; With the communication network that communication path is provided for Compasite connector that is connected described operational centre and the Compasite connector that is connected described backup center.In addition, according to the present invention, also comprise being customer service as the operational centre both in this Compasite standby system, also conduct provides the operation/backup center of the backup center of backup services for other operational centre or backup center.
In addition, according to the present invention, each operational centre connects the Compasite connector that a handle becomes extend markup language (XML) form and is sent to described backup center from the Data Update instruction transformation of each described operational centre.
In addition, according to the present invention, the Compasite connector that the data that handle of each backup center connection reads from described backup center become the required form in corresponding operational centre and are sent to described operational centre from extend markup language (XML) format conversion.
In addition, according to the present invention, described backup center comprises and is used for reading the data of operational centre and directly sends the running of client with alternative operational centre to by communication network in backup database, or reads the Database Backup recovery module of the total data of certain operational centre with recovery failure operation center from backup center.
In addition, according to the present invention, the Compasite connector comprises that reception is from the instruction of the database update of operational centre or write the terminal simulation module of data to the operational centre, the Data Update instruction translation that is used for the terminal simulation module is obtained becomes the extend markup language form, the data translation of the extend markup language form that perhaps backup center is sent becomes the extend markup language translater of the required form of terminal simulation module, be used to add or remove the user logic module of user logic, the communication gate that is used to receive/transmit extensible markup He carries out network control.
According to another aspect of the present invention, provide a kind of the Compasite system is carried out method of data backup, the method comprising the steps of: when Data Update and backup were carried out in the operational centre request, the operational centre that Data Update or backup are carried out in request sent to the Compasite connector that is connected with update instruction when the interior data storehouse is upgraded; The Compasite connector becomes the Data Update instruction transformation from the operational centre extensible markup and is sent to corresponding backup center; After receiving Data Update instruction with each backup center, corresponding data in the backup database are upgraded according to the Data Update instruction of being received; With hinder for some reason in operational system or catastrophe when causing service data to lose, operational centre or backup center that backup center substitutes the generation problem operate, the client directly reads the data of former operational centre from the database of backup center by the Compasite connector.
In addition, according to the present invention, this method further is included in the data of reading all data in the database of operational centre when setting up backup database and converting extend markup language (XML) form to and is sent to backup center.
In addition, according to the present invention, backup center can carry out synchronously to the renewal of data
In addition, according to the present invention, backup center can asynchronously carry out the renewal of data.
In addition, according to the present invention, when recovering the failure operation center, the direct corresponding total data of reading its lane database from backup center, and recover former database by the form that the Compasite connector converts former operational centre to.
The invention has the advantages that need not to carry out any software development according to the data structure of arbitrary operational centre and logical relation can carry out data backup and recovery to online any one system, system for backing up isomerous data in same network set up simple and fast, backup center can be based upon Anywhere, can prevent the influence of great catastrophe effectively to system, it is that other system backs up that the operational centre also can be used as backup center, improves efficiency of resource.Any renewal of operational centre all can be real-time transmitted to corresponding backup center, guarantees the consistance of data.Can set up backup at a plurality of backup centers to each operational centre, greatly improve the reliability of data and the efficient that catastrophe is handled.Each backup center can be handled the back-up job of a plurality of operational centres, has improved the utilization rate of backup center greatly.
Description of drawings
By be described in detail other purposes, characteristic and the advantage that the present invention may be better understood below in conjunction with the embodiment of accompanying drawing to backing up isomerous data in same network method and system of the present invention.
Fig. 1 is the formation synoptic diagram of expression according to the system for backing up isomerous data in same network of the embodiment of the invention;
Fig. 2 is the logic connection diagram of expression according to the system for backing up isomerous data in same network of the embodiment of the invention;
Fig. 3 is the backup center structural representation of expression according to the system for backing up isomerous data in same network of the embodiment of the invention;
Fig. 4 is that expression is according to the Compasite connector construction synoptic diagram in the system for backing up isomerous data in same network of the embodiment of the invention; With
Fig. 5 is backing up isomerous data in same network is carried out in expression according to the present invention a operational flowchart.
Embodiment
Describe the embodiment of backing up isomerous data in same network method and system of the present invention in detail below in conjunction with accompanying drawing.
Referring to Fig. 1, comprise a plurality of operational centres 2 in the Compasite system, operational centre 2 is connected to a plurality of Compasite connectors 3 of communication network, the backup center 4 that the data of operational centre are backed up, and be data backup between operational centre and the backup center and the communication network 5 that recovers to provide communication path.Also comprise operation/backup center 1 in the Compasite standby system.Operation/backup center 1 is the multiplexing system that operational centre and backup center constitute, and it had been customer service as the operational centre both, also provided backup services as backup center for backup center 4.Each operational centre can be applied in the various industry system as banking system, securities system, telecommunication system, electric system etc. and so on, and can be independently each other.The different departments of computer science data base management system (DBMS) of unifying can be adopted according to self needs or requirement in each operational centre, and Ding Yi data store organisation and logical relation are to be fit to the needs of every profession and trade voluntarily.Each operational centre is connected with separately Compasite connector 3.When Data Update is carried out in each operational centre 1,2, the Data Update instruction is sent to the Compasite connector 3 that is connected.This Compasite connector 3 Data Update instruction transformation at self-operating center in the future becomes extend markup language (XML) form, and is sent to the Compasite connector 3 that backup center 4 is connected by communication network 5.The mark language that extend markup language (XML) allows every profession and trade to define voluntarily can provide Data Control flexibly, so that access, processing, conversion etc.The Compasite connector 3 that backup center 4 is connected sends backup center 4 to after the Data Update instruction transformation of the XML form of being received being become the internal format of backup center 4, backup center 4 upgrades corresponding data in the database according to this Data Update instruction again, thereby finishes Data Update.Backup center 4 is backup centers independently, and back up each operational centre 1,2 that is responsible in the system.During from the backup center restore data, Compasite connector 3 becomes the required form in corresponding operational centre to the data-switching of the XML form that backup center 4 sends, and is sent to the operational centre that requires restore data then.
Backup center is made up of a plurality of large servers, and the database that is mainly used in each system in the backup network (operational centre or backup center) reaches the database that recovers institute's standby system in needs.Can comprise any a plurality of backup center and each backup center in the system for backing up isomerous data in same network can be that any a plurality of system (operational centre or backup center) provides backup services according to network condition.
Operational centre in the system for backing up isomerous data in same network is any actual motion and the computer system that need carry out data backup.The operational centre mainly can be divided into database and information handling system two parts.Each Data Update all can send to one or more backup centers to guarantee the synchronous of backup center database and operational centre database in the database of operational centre.If there is the part surplus resources certain operational centre, also can be used as backup center and provides backup services for other operational centres.
Compasite connector in the system for backing up isomerous data in same network mainly is made up of a PC and corresponding software.PC is connected to the terminal port that is subjected to supervisory system and comes the pseudo-terminal machine, and Compasite software then comes data and logical relation thereof in the access database by the simulation to terminating machine.The data of being read become the XML data through translation and deliver to backup center and back up.When catastrophe took place, the client operated with maintenance by the data that the Compasite connector directly reads in the backup database.When needs recovered the operational centre, corresponding data write in the database of operational centre by the Compasite connector again in the backup database.
Communication network in the described system for backing up isomerous data in same network mainly is meant in order to connect the network of total system.This network both can be the Internet, can be dedicated network also, the data stream that produces when being used for transmission backup and recovery.
The logic that Fig. 2 has provided according to the system for backing up isomerous data in same network of the embodiment of the invention connects.In the example shown in Fig. 2, show in its logic connection diagram 4 pairs of operation/backup centers 1 of backup center and operational centre 2 all back up move/backup center 1 then backs up backup center 4, can select the operational centre number of pairing backup center number in each operational centre and the service of each backup center in real world applications according to network and needs situation.
The structure of backup center 4 is described below with reference to Fig. 3.As shown in Figure 3, backup center comprises data backup module 8, and backup database 9 and backup recover module 10.The core of backup center is a backup database 9, is used to back up the data of each operational centre 1,2 lane database.Data backup module 8 upgrades in time to guarantee the consistance of Backup Data and operational centre data to the corresponding data of backup center lane database through XML data converted update instruction according to each bar that receives from Compasite connector 3.All data in the backup database 9 are stored with unified format, can not clash to guarantee data structures different in a plurality of operational centres.Backup recovers module 10 both can read the data of certain operational centre and directly sent the client to substitute the running of operational centre by communication network 7 from 9 li of backup databases, also the total data of certain operational centre can be read to recover the database at failure operation center.
Next the structure of Compasite connector 3 is described with reference to figure 4.According to embodiments of the invention, Compasite connector 3 comprises terminal simulation module 11, XML translater 12, user logic module 13 and communication gate 14.Wherein, the mode of terminal simulation module 11 by the pseudo-terminal machine receives from the database update instruction of operational centre 1,2 or to operational centre 1,2 and writes data.The Data Update instruction translation that extend markup language (XML) translater 12 is used for terminal simulation module 11 is obtained becomes the XML form, and the data translation of the XML form that perhaps backup center is sent becomes the required form of terminal simulation module 10.User logic module 13 is used for adding or removing user logic, for example change of the change of the merging of data recording and statistics, part form or project name and data recording form or the like.Communication gate 14 is used for reception/transmission XML data and carries out network control.
Next referring to Fig. 5 the operating process that data backup is carried out in the operational centre of Compasite system is described.In the present invention, when setting up system for backing up isomerous data in same network, at first select the backup center of proper number for each operational centre, by the Compasite connector content of the lane database of this operational centre being read and translated becomes the XML data and is sent to these backup centers, and sets up the mirror image of this operational centre on these backup centers.Each operational centre and backup center are according to format memory data of oneself and logical relation each other thereof.At first, at step S1, when setting up backup center, corresponding operational centre (backup center) is read all data in its database and is converted the XML data to by the Compasite connector and is sent to backup center to set up backup database.At step S2, when Data Update and backup were carried out in the operational centre request, the operational centre that Data Update is carried out in request sent to the Compasite connector that is connected with update instruction when the interior data storehouse is upgraded.At step S3, the Compasite connector Data Update instruction transformation at self-operating center in the future becomes the XML data and is sent to corresponding backup center.After each backup center receives Data Update instruction, according to the Data Update instruction of being received step S4 to backup database in corresponding data upgrade.Backup center renewal to data in step S4 can be carried out synchronously, also can asynchronously carry out.When operational system significant trouble or catastrophe occur and causes service data to lose, operational centre or backup center that backup center can substitute the generation problem operate, and the client directly reads the data of former operational centre from the database of backup center by the Compasite connector.When need recovering failure operation center or backup center, the direct corresponding total data of reading its lane database from backup center, and recover former database by the form that the Compasite connector converts former operational centre to.
At first can substitute former operational centre with the backup center nearest, that data are the most complete, the client directly reads required data and convert to the form of former operational centre from this backup center by the Compasite connector, to support client's work of treatment.After catastrophe disposes, can from this backup center whole related contents of lane database be read, the form of translating into former operational centre database by the Compasite system writes new operational centre database, the operation at the center that resumes operation.Also can adopt the backup of the data of backup center lane database and to use the same method.
System for backing up isomerous data in same network of the present invention can be applied to that bank's catastrophe standby system, security catastrophe standby system, telecommunications catastrophe standby system, electric power catastrophe standby system and all have a large amount of critical datas and in the system that need back up in realtime.
For example, in bank's operational system, because the used computer system difference of each bank needs to adopt system for backing up isomerous data in same network to carry out the catastrophe backup.Backup center in this system can be divided into district's backup center and national backup center.District's backup center is mainly a bank in the sub-district provides backup services, being mainly used in provides resuming work after the local catastrophe, national backup center then provides backup services to each big bank of nationwide, prevents the influence of extensive catastrophe to banking system.District's backup center builds within the sub-district, links to each other with each bank computer system in the sub-district by the high speed fibre network, obtains the data of each bank by the Compasite connector, and the All Activity of bank in distinguishing is realized renewal synchronously.Whole nation backup center then can be set up several backup centers in China as required, link to each other with each district's backup center by the Internet, obtain by the Compasite connector and respectively to distinguish backup center Data Update instruction, each district's backup center data is realized asynchronous refresh.When catastrophe takes place, at first attempt the service that utilizes district's backup center to recover banking system in the sub-district.Can't work if certain district's backup center is subjected to the influence of catastrophe, then, utilize the service of bank in the backup center recovery district, district of being recovered again earlier by the data of nearest national backup center recovery district backup center.
In a security operational system, the system used owing to each securities exchange center and each stock trader is all different, adopts system for backing up isomerous data in same network can greatly improve the cost and the data reliability of standby system.In this system, backup center is divided into active and standby part of center and time backup center.The computer system that active and standby part center is mainly used in the securities exchange center backs up, for improving the efficient that backup recovers, active and standby part of center also can be divided into backed up in synchronization center and async backup center two classes, respectively the database of securities exchange center realized upgrading synchronously and asynchronous refresh.The computer system that inferior backup center is mainly the various places stock trader provides backup services, in order to improve the performance of stock trader system, mainly adopts the mode of asynchronous refresh to back up.For guaranteed security trade center safety of data, can set up a plurality of active and standby part of centers in China, each active and standby part of center then can link to each other by the computer system of Compasite connector with contiguous stock trader, provides backup services to improve the utilization factor of backup center for the stock trader simultaneously.
Similar with the bank standby system, in the telecom backup system, also need to adopt system for backing up isomerous data in same network.In this system, backup center also is divided into district's backup center and national backup center.All telecommunication apparatus link to each other in district's backup center and the district, compile the duty of all telecommunication apparatus and back up in realtime by the Compasite connector.When accident took place, the state that the data by district's backup center can return to backup device rapidly before the faulty equipment fault was also resumed work rapidly.Whole nation backup center then is used to back up the state of respectively distinguishing backup center, at first recovers affected district backup center when extensive catastrophe takes place, and then the state that recovers each backup device is to recover telecommunications service.
In an operation power system, at first need to set up a plurality of large-scale backup centers in China, by the Compasite connector big power station in the whole nation and the duty and the control information of substation equipment are backed up.Each large-scale backup center can also back up a plurality of little backup centers, and each little backup center then backs up by the duty of Compasite connector to contiguous little generating plant, circuit and transformer station.In case have an accident, at first the Backup Data with little backup center recovers faulty equipment.Earlier recover affected little backup center when The Cataclysm takes place, use the running of the data recovery apparatus of little backup center again with the data of large-scale backup center.If the equipment of big power station and transformer station is received the influence of catastrophe, then directly resume work by large-scale backup center.
More than invention has been described by specific embodiment, yet, the invention is not restricted to described specific embodiment.Those skilled in the art can design other similar embodiments at an easy rate according to disclosed notion.These changes and improvements do not break away from appended claim spirit and scope.
Claims (9)
1. system for backing up isomerous data in same network, this system comprises:
A plurality of operational centres of carrying out information processing and storage data;
A plurality of backup centers that the data of described operational centre are backed up, the backup database that comprises the data that are used to back up each operational centre lane database, be used for corresponding data in the backup database being upgraded in time to guarantee the conforming data backup module of Backup Data and certain operational centre data according to each bar Data Update instruction of being received, all data in the described backup database are stored with unified format, can not clash to guarantee data structures different in a plurality of operational centres;
A plurality of and described operational centre is connected with described backup center, Data Update instruction transformation from each described operational centre is become the extend markup language form and is sent to described backup center, and the data that read from described backup center are become the required form in corresponding operational centre and are sent to the Compasite connector of described operational centre from the extend markup language format conversion; With
The communication network of communication path is provided for Compasite connector that connects described operational centre and the Compasite connector that is connected described backup center.
2. system for backing up isomerous data in same network according to claim 1 is characterized in that also comprising to be customer service as the operational centre both, and also conduct provides the operation/backup center of the backup center of backup services for other operational centre and backup center.
3. system for backing up isomerous data in same network according to claim 1 and 2, it is characterized in that described backup center also comprises the data that are used for reading the operational centre in backup database and directly sends the client to substituting the running of operational centre by communication network, or the total data of reading certain operational centre from backup center is recovered module with the Database Backup of recovering the failure operation center.
4. system for backing up isomerous data in same network according to claim 1 and 2, it is characterized in that the Compasite connector comprises that reception is from the instruction of the database update of operational centre or write the terminal simulation module of data to the operational centre, the Data Update instruction translation that is used for the terminal simulation module is obtained becomes the extend markup language form, the data translation of the extend markup language form that perhaps backup center is sent becomes the extend markup language translater of the required form of terminal simulation module, be used to add or remove the user logic module of user logic, the communication gate that is used to receive/transmit extensible markup He carries out network control.
5. one kind is carried out method of data backup to the Compasite system, and the method comprising the steps of:
When Data Update and backup were carried out in the operational centre request, the operational centre that Data Update or backup are carried out in request sent to the Compasite connector that is connected with update instruction when the interior data storehouse is upgraded;
The Compasite connector becomes the Data Update instruction transformation from the operational centre extensible markup and is sent to corresponding backup center; With
After each backup center receives the Data Update instruction, corresponding data in the backup database are upgraded according to the Data Update instruction of being received; With
The heart that is in operation hinders or catastrophe when causing service data to lose for some reason, and operational centre or backup center that backup center substitutes the generation problem operate, and the client directly reads the data of former operational centre from the database of backup center by the Compasite connector.
6. method according to claim 5 is characterized in that further being included in the data of reading all data in the database of operational centre when setting up backup database and converting the extend markup language form to and is sent to backup center.
7. method according to claim 5 is characterized in that backup center can carry out synchronously to the renewal of data.
8. method according to claim 5 is characterized in that backup center can asynchronously carry out the renewal of data.
9. method according to claim 5, it is characterized in that when recovering the failure operation center, the direct corresponding total data of reading its lane database from backup center, and recover former database by the form that the Compasite connector converts former operational centre to.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007536634A (en) * | 2004-05-04 | 2007-12-13 | フィッシャー−ローズマウント・システムズ・インコーポレーテッド | Service-oriented architecture for process control systems |
| CN101217406B (en) * | 2008-01-15 | 2011-05-11 | 中兴通讯股份有限公司 | Collocation data backup and recovery method |
| CN101631042B (en) * | 2009-07-20 | 2012-05-23 | 中兴通讯股份有限公司 | Method and system for realizing data backup restoration of heterogeneous network management systems |
| CN101739436B (en) * | 2009-09-28 | 2012-12-19 | 浙江工商大学 | XML-based flexible data migration method |
| CN101706744A (en) * | 2009-10-27 | 2010-05-12 | 深圳市中兴移动通信有限公司 | Instruction analyzing device supporting multi-instruction set and instruction analyzing method thereof |
| CN102063502B (en) * | 2011-01-06 | 2013-07-31 | 天津神舟通用数据技术有限公司 | Method for realizing synchronization of data in heterogeneous database |
| CN103577277B (en) * | 2012-07-27 | 2018-07-03 | 腾讯科技（深圳）有限公司 | A kind of method and device of data processing |
| CN103248692A (en) * | 2013-04-28 | 2013-08-14 | 苏州洁祥电子有限公司 | Vehicle networking system and data backup method thereof |
| CN103401755A (en) * | 2013-08-15 | 2013-11-20 | 山东神思电子技术股份有限公司 | Method for data transmission in virtual communication link |
| CN103714485B (en) * | 2013-12-11 | 2017-10-17 | 阎东升 | A kind of e-commerce system and method for realizing staple commodities spot transaction |
| CN106933697A (en) * | 2015-12-31 | 2017-07-07 | 中富通股份有限公司 | A kind of hardware based real-time data base backup scenario |
| CN107391306B (en) * | 2017-07-27 | 2019-12-10 | 国家电网公司 | Heterogeneous database backup file recovery method |
| CN116466960A (en) * | 2023-04-14 | 2023-07-21 | 北京星汉未来网络科技有限公司 | Method, device, equipment and medium for multi-activity deployment of database |
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