CN103870600A - Data table backup method and device based on Oracle database - Google Patents
Data table backup method and device based on Oracle database Download PDFInfo
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- CN103870600A CN103870600A CN201410131490.9A CN201410131490A CN103870600A CN 103870600 A CN103870600 A CN 103870600A CN 201410131490 A CN201410131490 A CN 201410131490A CN 103870600 A CN103870600 A CN 103870600A
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Abstract
The invention discloses a data table backup method and device based on the Oracle database (version 10g, version 11g). The method comprises the a backup information table configuration step and a backup execution step, wherein the backup information table configuration step is used for configuring a backup information table, the backup information table comprises names of backup data tables, backup state, backup mode and concurrency level, and the concurrency level corresponds to the maximum number of backup processes which are executed side by side. The backup execution step comprises the steps that a backup process for executing the backup to one of the data tables to be backup is added according to the configured backup information table, whether the number of the current executing backup processes reaches the concurrency level or not is judged, the backup process for executing the backup to the next data table to be backup in the data tables to be backup is continuously added if the concurrency level is not reached, and the judge is carried out again until the backup to the backup data tables to be backup is completed. The method can be used for conducting the highly efficient and quick backup to massive data.
Description
Technical field
The present invention relates to data management field, more specifically, relate to a kind of tables of data backup method and device based on oracle database.
Background technology
Loss of data is all a bad dream for large small enterprise, business datum and enterprise's day to day operation running are as close as lips and teeth, lose these data, even temporary, also can threaten the arduous competitive edge of coming of earning of enterprise, more likely destroy corporate reputation, or may cause expensive lawsuit and damages.
For usual oracle database, traditional DB Backup and recovery scheme have data derivation, two kinds of major ways of data thermal backup.Derive mode for data, its utilization carries EXPORT or EXPDP instrument derived data is realized data backup, but this class instrument is applicable to, data volume is few, renewal frequency is little, the less demanding situation of data security; And for data thermal backup, it requires database to move in the mode of filing, conventionally realize by Rman instrument.
Above two kinds of traditional backup scenarios, in the situation that business datum amount is little, can reach good effect.But for example, in the time that data volume acquires a certain degree (tens more than G), the system many for tables of data number, data volume is large, these traditional backup scenarios often all can take for a long time, and the inefficiency that seems is even unable to do what one wishes.
Thus, in the urgent need to a kind of data back up method, can realize the backup for mass data, carry out thereby resist data the difficult problem that backup brings when huge, solve above-mentioned very thorny data management problem.
Summary of the invention
The present invention is based on the problems referred to above, proposed a kind of tables of data backup method based on oracle database, can realize the quick backup for mass data.
To achieve these goals, one aspect of the present invention provides a kind of tables of data backup method based on oracle database, comprise: backup information table configuration step, for described backup information table is configured, wherein said backup information table comprises title, Status of Backups, backup mode and the concurrency of tables of data to be backed up, and described concurrency is corresponding to the maximum number of the backup process of executed in parallel; And backup execution step, comprising: according to the described backup information table after configuration, increase by the described backup process of one in described tables of data to be backed up tables of data to be backed up being carried out to backup; Whether the number that judges the described backup process of current execution reaches described concurrency: if do not reach described concurrency, continue to increase the described backup process of the tables of data to be backed up of the next one in described tables of data to be backed up being carried out to backup; Otherwise, after a backup process in the described backup process of current execution is released, continue to increase the described backup process of the tables of data to be backed up of the next one in described tables of data to be backed up being carried out to backup; And return and carry out above-mentioned judgement until the tables of data all to be backed up in described tables of data to be backed up has all been carried out back-up processing.
Preferably, described method may further include: check and recording step, and whether successful for checking the backup of described tables of data to be backed up, and be recorded in daily record; And backup information table step of updating, for the Status of Backups of each tables of data to be backed up of described tables of data to be backed up and described backup mode are written in described backup information table.
Preferably, described backup execution step may further include: after completing the backup of a tables of data to be backed up in described tables of data to be backed up, Backup Data is compressed to processing.
Preferably, described backup execution step may further include: according to the internal relation between disparate databases user's tables of data described to be backed up, described disparate databases user's tables of data described to be backed up is organized as to a subsystem, by described subsystem, described tables of data to be backed up is backed up.
Preferably, in the time there is multiple described subsystem, can carry out the backup to multiple described subsystems simultaneously.
The present invention also provides a kind of tables of data back-up device based on oracle database on the other hand, comprise: backup information table configuration module, described backup information table is configured, wherein said backup information table comprises title, Status of Backups, backup mode and the concurrency of tables of data to be backed up, and described concurrency is corresponding to the maximum number of the backup process of executed in parallel; And backup execution module, be configured to: according to the described backup information table after configuration, increase by the described backup process of one in described tables of data to be backed up tables of data to be backed up being carried out to backup; Whether the number that judges the described backup process of current execution reaches described concurrency: if do not reach described concurrency, continue to increase the described backup process of the tables of data to be backed up of the next one in described tables of data to be backed up being carried out to backup; Otherwise, after a backup process in the described backup process of current execution is released, continue to increase the described backup process of the tables of data to be backed up of the next one in described tables of data to be backed up being carried out to backup; And return and carry out above-mentioned judgement until the tables of data all to be backed up in described tables of data to be backed up has all been carried out back-up processing.
Preferably, described device further comprises: check and logging modle, whether it is configured to check to the backup of described tables of data to be backed up successful, and is recorded in daily record; And backup information table update module, it is configured to the Status of Backups of each tables of data to be backed up in described tables of data to be backed up and described backup mode to be written in described backup information table.
Preferably, described backup execution module is further configured to: after completing the backup of a tables of data to be backed up in described tables of data to be backed up, Backup Data is compressed to processing.
Preferably, described backup execution module is further configured to: according to the internal relation between disparate databases user's tables of data described to be backed up, described disparate databases user's tables of data described to be backed up is organized as to a subsystem, by described subsystem, described tables of data to be backed up is backed up, and wherein, in the time there is multiple described subsystem, carry out the backup to multiple described subsystems simultaneously.
It is known by technique scheme is analyzed, use backup method of the present invention and device, its beneficial effect is at least: according to the described backup information table after configuration, constantly increase backup process until reach concurrency, and after current backup process is released, the so a kind of mode that continues to increase backup process, has realized the concurrent backup of data, has greatly improved speed and efficiency to mass data backup.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of tables of data backup method based on oracle database of the embodiment of the present invention.
Fig. 2 is the lists of documents after backup.
Fig. 3 is the structural representation of the tables of data back-up device based on oracle database of another embodiment of the present invention.
Embodiment
In order to make the present invention clearer, below we in conjunction with the embodiments, with reference to accompanying drawing, the present invention is described in further detail.
With reference to accompanying drawing 1, Fig. 1 is the schematic flow sheet of a kind of tables of data backup method based on oracle database of the embodiment of the present invention.
First be the preliminary work before backup, i.e. initialization.This preliminary work mainly comprises the information such as check system environment, database version, database derivation mode, bibliographic structure, for back-up processing is below prepared.Wherein database is derived mode, be database itself backup mode (herein for backup information table in backup mode distinguish, derive mode and be referred to as database), in oracle database, the difference of data-driven storehouse version and may there is EXPORT and derive (backup) pattern or EXPDP derivation (backup) pattern.
Backup information table is then set in database.In backup information table, can comprise title, the Status of Backups of tables of data to be backed up, backup mode, the configuration informations such as concurrency parameter.Concurrency capable setting parameter is the maximum number of the backup process of executed in parallel.Status of Backups is the parameter that represents the current Status of Backups of each tables of data to be backed up, can be used for representing that each concrete tables of data to be backed up is not respectively in backing up, backing up or complete the state of backup.The step of below will mention backup information table being upgraded, therefore Status of Backups can dynamically update in real time, can be also based on processing node (for example, before, the backup process of corresponding a certain tables of data to be backed up starts, start in, start after) and upgrade.Backup mode can comprise full table backup mode and subregion backup mode, if carry out the table of subregion according to the time, incremental backup mode and full backup mode can be set, to meet flexibly backup requirements.
In embodiments of the present invention, by carrying out back-up processing based on backup information table, can improve the efficiency of data backup, backup information table has recorded the important parameter of backup comprehensively, and can reuse, inquire about and/or revise, compare the practical application of being more convenient for prior art.
Then generate backup and compression script, according to the configuration information of backup information table, carry out backup and the compression script of generated data.In backup execution step, check the Status of Backups in backup information table, Status of Backups information is carried out to initialization operation.By backup information table is set in database, can logarithm thousand sheets tables of data back up, parallelly compressed preservation, can entirely show backup, also can back up according to subregion.Its concurrency parameter can be modified as required.Concrete backup implementation is to carry out according to the backup information table after configuration, backup information table has comprised title, Status of Backups, backup mode and the concurrency of tables of data to be backed up, therefore, can call one by one based on these information backup command on backstage, every backup command carries out corresponding to a tables of data to be backed up for the treatment of in Backup Data table the backup process backing up.Whether the number that judges the backup process of current execution reaches concurrency: if do not reach concurrency, continue to increase the next one for the treatment of in Backup Data table tables of data to be backed up and carry out the backup process backing up; Otherwise, after a backup process in the backup process of current execution is released, continues to increase the next one for the treatment of in Backup Data table tables of data to be backed up and carry out the backup process backing up; And return and carry out above-mentioned judgement until the tables of data all to be backed up in tables of data to be backed up has all been carried out back-up processing.
As can be seen here, until reach concurrency, and after current backup process is released, continue to increase so a kind of mode of backup process by continuous increase backup process, realized the concurrent backup of data, greatly improved speed and efficiency to mass data backup.
Preferably, completing after the backup for the treatment of a tables of data to be backed up in Backup Data table, Backup Data is compressed to processing.Thereby reduce required storage space.Show by test, when for about 20T data, approximately 2000 tables back up altogether, space is used and is no more than at most 5T.
Can also generate backup log.Check that whether backup is successful, records backup log in detail.And can provide perfect error handling processing mechanism, for example may further include backup information table step of updating, for the Status of Backups of each tables of data to be backed up of tables of data to be backed up and backup mode are written in backup information table in real time, so that inquiry afterwards and error handling processing.
In a preferred embodiment, above-mentioned backup execution step can further include: according to the internal relation between disparate databases user's tables of data to be backed up, disparate databases user's tables of data to be backed up is organized as to a subsystem, treats Backup Data table by subsystem and back up.Preferably, in the time there is multiple subsystem, carry out the backup to multiple subsystems simultaneously.
Thus, by the above-mentioned means of utilizing the internal relation between tables of data to be backed up to organize subsystem to back up, backup mode is innovated, can carry out backup according to service needed (being presented as the internal relation between tables of data to be backed up) neatly, improve the automaticity of business processing, and backup can be corresponded to actual needs more, owing to can multiple subsystems be backed up simultaneously, further improve the efficiency of back-up job.
Referring to accompanying drawing 2, expression be the lists of documents that generate according to the tables of data backup method of the embodiment of the present invention.Tables of data backup method of the present invention is realized based on oracle database environment, and the EXPORT exported schema and the EXPDP exported schema that have utilized oracle database to provide.These two kinds of exported schemas are all the patterns that serial is carried out.Particularly, open a corresponding backup process by the Oracle backup command in one of above-mentioned pattern of Background scheduling, and utilize the scheme of the embodiment of the present invention to open multiple such backup process, thereby realize concurrent backup.The present invention can be applied in multiple data processing type systematics, while implementing to dispose, respective code is deployed in system, by increase corresponding configuration table in database, implements backup method of the present invention.
Apply the backup method of the embodiment of the present invention, the efficient parallel backup functionality of mass data and mass data table can be provided; Can support common DMP pattern (EXPORT) and data pump pattern (EXPDP), and the parameter such as configurable concurrency; Each carries out parallelly compressed immediately to data file after showing to have backed up, with MIN use file system space; For the table that carries out subregion according to the time, incremental backup and full backup pattern can be set, to meet flexibly backup requirements.
As shown in Figure 3, another embodiment of the present invention also provides a kind of tables of data back-up device based on oracle database, this device comprises: backup information table configuration module, backup information table is configured, wherein backup information table comprises title, Status of Backups, backup mode and the concurrency of tables of data to be backed up, and concurrency is corresponding to the maximum number of the backup process of executed in parallel; And backup execution module, be configured to: according to the backup information table after configuration, increase a tables of data to be backed up for the treatment of in Backup Data table and carry out the backup process backing up; Whether the number that judges the backup process of current execution reaches concurrency: if do not reach concurrency, continue to increase the next one for the treatment of in Backup Data table tables of data to be backed up and carry out the backup process of backup, and return and carry out above-mentioned judgement until the tables of data all to be backed up in tables of data to be backed up has all been carried out back-up processing; Otherwise, after a backup process in the backup process of current execution is released, continue to increase the next one for the treatment of in Backup Data table tables of data to be backed up and carry out the backup process of backup, and return and carry out above-mentioned judgement until the tables of data all to be backed up in tables of data to be backed up has all been carried out back-up processing.
Realize the concurrent backup of data by the tables of data back-up device of this embodiment, greatly improved speed and efficiency to mass data backup.
Preferably, this device can also comprise and checking and logging modle, and it is configured to check the whether success of backup for the treatment of Backup Data table, and is recorded in daily record; And backup information table update module (not shown), it is configured to the Status of Backups of each tables of data to be backed up in tables of data to be backed up and backup mode to be written in backup information table.
In this embodiment, backup execution module can be further configured to: completing after the backup for the treatment of a tables of data to be backed up in Backup Data table, Backup Data is compressed to processing.Thereby greatly reduce the desired storage space of magnanimity Backup Data.
In a preferred embodiment, backup execution module is further configured to: according to the internal relation between disparate databases user's tables of data to be backed up, disparate databases user's tables of data to be backed up is organized as to a subsystem, treating Backup Data table by subsystem backs up, and wherein, in the time there is multiple subsystem, carry out the backup to multiple subsystems simultaneously.Thus, backup mode is innovated, can carry out backup according to service needed (being presented as the internal relation between tables of data to be backed up) neatly, improve the automaticity of business processing, and backup can be corresponded to actual needs more, owing to can multiple subsystems be backed up simultaneously, further improve efficiency and the speed of the backup to mass data.The foregoing is only the application's preferred embodiment, to those skilled in the art, the application can have various modifications and variations.Within all inventions in the application spirit and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in the application's protection domain.
Claims (9)
1. the tables of data backup method based on oracle database, comprising:
Backup information table configuration step, for described backup information table is configured, wherein said backup information table comprises title, Status of Backups, backup mode and the concurrency of tables of data to be backed up, and described concurrency is corresponding to the maximum number of the backup process of executed in parallel; And
Backup execution step, comprising:
According to the described backup information table after configuration, increase by the described backup process of one in described tables of data to be backed up tables of data to be backed up being carried out to backup;
Whether the number that judges the described backup process of current execution reaches described concurrency: if do not reach described concurrency, continue to increase the described backup process of the tables of data to be backed up of the next one in described tables of data to be backed up being carried out to backup; Otherwise, after a backup process in the described backup process of current execution is released, continue to increase the described backup process of the tables of data to be backed up of the next one in described tables of data to be backed up being carried out to backup; And
Return and carry out above-mentioned judgement until the tables of data all to be backed up in described tables of data to be backed up has all been carried out back-up processing.
2. method according to claim 1, described method further comprises:
Check and recording step, whether successful for checking the backup of described tables of data to be backed up, and be recorded in daily record; And
Backup information table step of updating, for being written to the Status of Backups of each tables of data to be backed up of described tables of data to be backed up and described backup mode in described backup information table.
3. method according to claim 1 and 2, wherein
Described backup execution step further comprises: after completing the backup of a tables of data to be backed up in described tables of data to be backed up, Backup Data is compressed to processing.
4. method according to claim 1 and 2, wherein
Described backup execution step further comprises: according to the internal relation between disparate databases user's tables of data described to be backed up, described disparate databases user's tables of data described to be backed up is organized as to a subsystem, by described subsystem, described tables of data to be backed up is backed up.
5. method according to claim 4 wherein, in the time there is multiple described subsystem, is carried out the backup to multiple described subsystems simultaneously.
6. the tables of data back-up device based on oracle database, comprising:
Backup information table configuration module, described backup information table is configured, wherein said backup information table comprises title, Status of Backups, backup mode and the concurrency of tables of data to be backed up, and described concurrency is corresponding to the maximum number of the backup process of executed in parallel; And
Backup execution module, is configured to: according to the described backup information table after configuration, increase by the described backup process of one in described tables of data to be backed up tables of data to be backed up being carried out to backup;
Whether the number that judges the described backup process of current execution reaches described concurrency: if do not reach described concurrency, continue to increase the described backup process of the tables of data to be backed up of the next one in described tables of data to be backed up being carried out to backup; Otherwise, after a backup process in the described backup process of current execution is released, continue to increase the described backup process of the tables of data to be backed up of the next one in described tables of data to be backed up being carried out to backup; And
Return and carry out above-mentioned judgement until the tables of data all to be backed up in described tables of data to be backed up has all been carried out back-up processing.
7. device according to claim 6, described device further comprises:
Check and logging modle, whether it is configured to check to the backup of described tables of data to be backed up successful, and is recorded in daily record; And
Backup information table update module, it is configured to the Status of Backups of each tables of data to be backed up in described tables of data to be backed up and described backup mode to be written in described backup information table.
8. according to the device described in claim 6 or 7, wherein
Described backup execution module is further configured to: after completing the backup of a tables of data to be backed up in described tables of data to be backed up, Backup Data is compressed to processing.
9. according to the device described in claim 6 or 7, wherein
Described backup execution module is further configured to: according to the internal relation between disparate databases user's tables of data described to be backed up, described disparate databases user's tables of data described to be backed up is organized as to a subsystem, by described subsystem, described tables of data to be backed up is backed up, and wherein, in the time there is multiple described subsystem, carry out the backup to multiple described subsystems simultaneously.
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| CN105740722A (en) * | 2016-01-25 | 2016-07-06 | 上海新炬网络信息技术有限公司 | Database sensitive data disguising method |
| CN108255909A (en) * | 2017-07-27 | 2018-07-06 | 平安科技（深圳）有限公司 | Tables of data backup method and server based on oracle database |
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| CN110109778A (en) * | 2019-07-02 | 2019-08-09 | 南京云信达科技有限公司 | A kind of a large amount of small data file backup methods and restoration methods |
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| CN116881051A (en) * | 2023-09-06 | 2023-10-13 | 天津神舟通用数据技术有限公司 | Data backup and recovery method and device, electronic equipment and storage medium |
| CN116881051B (en) * | 2023-09-06 | 2023-12-08 | 天津神舟通用数据技术有限公司 | Data backup and recovery method and device, electronic equipment and storage medium |
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