CN104615490A - Method and device for data conversion - Google Patents
Method and device for data conversion Download PDFInfo
- Publication number
- CN104615490A CN104615490A CN201510060586.5A CN201510060586A CN104615490A CN 104615490 A CN104615490 A CN 104615490A CN 201510060586 A CN201510060586 A CN 201510060586A CN 104615490 A CN104615490 A CN 104615490A
- Authority
- CN
- China
- Prior art keywords
- data
- record
- thread
- converted
- conversion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The invention provides a method and device for data conversion. The method includes the steps that firstly, a data conversion process is divided into two or more procedures; secondly, a blocking queue is added between every two adjacent procedures and one or more threads are allocated for each procedure; thirdly, each thread of the previous procedure writes execution result data into the corresponding blocking queue, and each thread of the next procedure reads the execution result data of the previous procedure from the corresponding blocking queue. Through the method and device for data conversion, data conversion efficiency can be improved.
Description
Technical field
The present invention relates to technical field of data processing, particularly a kind of method changed of data and device.
Background technology
Database be organize according to data structure, the warehouse of store and management data, database has number of different types, is widely used all in all fields from the form the most simply storing various data to the large-scale database system can carrying out mass data storage.The mode storing data in different databases may be different, if the data in the first database be stored in the second database, needs to convert the data derived from the first database to meet the second Database Requirements storage mode.
In prior art, the process of a data conversion is performed by a thread, the execution result of each step is directly passed to next step, if previous step is not complete, next step will be in the state of wait always, until the execution result data obtaining previous step just bring into operation.When data to be converted are more, the efficiency of data conversion is lower.
Summary of the invention
In view of this, the invention provides method and the device of a kind of data conversion, the efficiency of data conversion can be improved.
On the one hand, the invention provides the method for a kind of data conversion, comprising:
S1: the process that data are changed is divided into plural step;
S2: increase in the middle of adjacent step and block queue, for each step distributes more than one thread;
S3: the write of execution result data is blocked queue by each thread of previous step, and each thread of next step reads the described execution result data of previous step from described obstruction queue.
Further, also comprise:
By the current unappropriated record in execution result data described in described obstruction queue, distribute to the thread recording minimum next step of arbitrary load.
Further, described S2, comprising:
Be that arbitrary steps distributes a predetermined number thread according to user instruction.
Further, also comprise:
The database storing data to be converted is connected by Java DataBase combining JDBC;
And/or, the database storing data to be converted is connected by open data base connection ODBC.
Further, described S1 comprises: the process that data are changed be divided into acquisition, conversion and export three steps;
Step S3, comprising:
S31: in the more than one acquisition thread of obtaining step, each acquisition thread obtains the record in data to be converted, and the record of acquisition is written to one by one in the first obstruction queue;
S32: in the more than one conversion thread of switch process, each conversion thread reads the record that described first blocks the acquisition in queue one by one, and the record after conversion is written in the second obstruction queue by record that conversion is read one by one;
S33: in the more than one output thread exporting step, each output thread reads the record after the conversion in described second obstruction queue one by one, exports the record after described conversion.
Further, in described S31, each acquisition thread obtains a record in data to be converted, comprising:
When the database support storing described data to be converted is read in batches, in batches to data to be converted described in described database request, the request often criticized returns the record in preset recording data to be converted described in several, the record returned by database is stored into first and presets in result set, from the described first result set preset, read record one by one;
When the database storing described data to be converted is not supported to read in batches, to store described data to be converted database request described in data to be converted, described data to be converted being stored into second presets in result set, presets result set read record one by one from described second.
On the other hand, the invention provides the device of a kind of data conversion, comprising:
Division unit, the process for data being changed is divided into plural step;
First allocation units, block queue, for each step distributes more than one thread for increasing in the middle of adjacent step;
Performance element, for making each thread of previous step that queue is blocked in the write of execution result data, and makes each thread of next step from described obstruction queue, read the described execution result data of previous step.
Further, also comprise: the second allocation units, for by the current unappropriated record in execution result data described in described obstruction queue, distribute to the thread recording minimum next step of arbitrary load.
Further, described division unit, the process for data being changed is divided into acquisition, conversion and exports three steps;
Described performance element comprises:
Obtain subelement, for by each acquisition thread in the more than one acquisition thread of obtaining step, obtain the record in data to be converted, and the record of acquisition is written to one by one in the first obstruction queue;
Conversion subelement, for by each conversion thread in the more than one conversion thread of switch process, reads the record that described first blocks the acquisition in queue one by one, the record that conversion is read, is written in the second obstruction queue one by one by the record after conversion;
Export subelement, for each output thread in the more than one output thread by exporting step, reading the record after the conversion in described second obstruction queue one by one, exporting the record after described conversion.
Further, described acquisition subelement, during for reading when the database support storing described data to be converted in batches, in batches to data to be converted described in described database request, the request often criticized returns the record in preset recording data to be converted described in several, the record returned by database is stored into first and presets in result set, from the described first result set preset, read record one by one; When the database storing described data to be converted is not supported to read in batches, to store described data to be converted database request described in data to be converted, described data to be converted being stored into second presets in result set, presets result set read record one by one from described second.
The method of a kind of data conversion provided by the invention and device, the process that data are changed is divided into plural step, obstruction queue is added between adjacent step, execution result data are written to by the step of blocking before queue blocks in queue, the step of blocking after queue obtains the execution result data of previous step from obstruction queue, realize each step by multiple thread parallel process, improve the efficiency of data conversion.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the method flow diagram of a kind of data conversion that one embodiment of the invention provides;
Fig. 2 is the schematic diagram of the device of a kind of data conversion that one embodiment of the invention provides;
Fig. 3 is the schematic diagram of the device of the another kind of data conversion that one embodiment of the invention provides.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly; below in conjunction with the accompanying drawing in the embodiment of the present invention; technical scheme in the embodiment of the present invention is clearly and completely described; obviously; described embodiment is the present invention's part embodiment, instead of whole embodiments, based on the embodiment in the present invention; the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
As shown in Figure 1, embodiments provide the method for a kind of data conversion, the method can comprise the following steps:
S1: the process that data are changed is divided into plural step;
S2: increase in the middle of every two steps and block queue, for each step distributes more than one thread;
S3: the write of execution result data is blocked queue by each thread of previous step, and each thread of next step reads the described execution result data of previous step from described obstruction queue.
The method of a kind of data conversion that the embodiment of the present invention provides, the process that data are changed is divided into plural step, obstruction queue is added between adjacent step, execution result data are written to by the step of blocking before queue blocks in queue, the step of blocking after queue obtains the execution result data of previous step from obstruction queue, realize each step by multiple thread parallel process, improve the efficiency of data conversion.
In order to reasonable distribution blocks the record in queue, make the quantity of the record of each thread institute load relatively average, improve treatment effeciency, the method also comprises:
By the current unappropriated record in execution result data described in described obstruction queue, distribute to the thread recording minimum next step of arbitrary load.
Each step can be independent increase and expansion, user can arrange the quantity of the thread of executed in parallel in each step according to demand neatly.Described S2, comprising: be that arbitrary steps distributes a predetermined number thread according to user instruction.
Can select for different databases different from mode that is DataBase combining, before described S1, also comprise:
The database storing data to be converted is connected by JDBC (Java Data Base Connectivity, Java DataBase combining);
And/or, the database storing data to be converted is connected by ODBC (Open Database Connectivity, Open Database Connection).
For example, the process that data are changed can be divided into three steps, detailed process is as follows:
Described S1 comprises: the process that data are changed be divided into acquisition, conversion and export three steps;
Step S3, comprising:
S31: in the more than one acquisition thread of obtaining step, each acquisition thread obtains the record in data to be converted, and the record of acquisition is written to one by one in the first obstruction queue;
S32: in the more than one conversion thread of switch process, each conversion thread reads the record that described first blocks the acquisition in queue one by one, and the record after conversion is written in the second obstruction queue by record that conversion is read one by one;
S33: in the more than one output thread exporting step, each output thread reads the record after the conversion in described second obstruction queue one by one, exports the record after described conversion.
Particularly, obtaining step can be realized by the mode of table input, and exporting step can be realized by the mode of table output.
In order to reasonable distribution blocks the record in queue, make the quantity of the record of each thread institute load relatively average, improve treatment effeciency, after described S31, before described S32, also comprise:
Block the current unappropriated record in queue by described first, that distributes to arbitrary load records minimum conversion thread;
And/or, after described S32, before described S33, also comprise:
Block the current unappropriated record in queue by described second, that distributes to arbitrary load records minimum output thread.
For example, if there is N number of thread, Article 1 record is distributed to first thread, Article 2 record is distributed to second thread, the like, distribute N article of record to N number of thread, N+1 article of record is distributed to first part copy, the rest may be inferred, until do not record distribution.
The database storing data to be converted may be supported to read in batches, may not support to read, for both of these case in batches, present embodiment obtains data by following two kinds of modes, in described S31, each acquisition thread obtains a record in data to be converted, comprising:
When the database support storing described data to be converted is read in batches, in batches to data to be converted described in described database request, the request often criticized returns the record in preset recording data to be converted described in several, the record returned by database is stored into first and presets in result set, from the described first result set preset, read record one by one;
When the database storing described data to be converted is not supported to read in batches, to store described data to be converted database request described in data to be converted, described data to be converted being stored into second presets in result set, presets result set read record one by one from described second.
In this implementation, for the database supporting to read in batches, often can criticize and return several records of preset recording, can avoid like this, when data volume is more, taking a large amount of internal memory.
In addition, the obstruction queue that provides of the embodiment of the present invention can by following codes implement:
As shown in Figure 2 and Figure 3, the device of a kind of data conversion is embodiments provided.Device embodiment can pass through software simulating, also can be realized by the mode of hardware or software and hardware combining.Say from hardware view; as shown in Figure 2; for a kind of hardware structure diagram of the device place equipment of a kind of data of embodiment of the present invention conversion; except the processor shown in Fig. 2, internal memory, network interface and nonvolatile memory; in embodiment, the equipment at device place can also comprise other hardware usually, as the forwarding chip etc. of responsible process message.For software simulating, as shown in Figure 3, as the device on a logical meaning, be by the CPU of its place equipment, computer program instructions corresponding in nonvolatile memory is read operation in internal memory to be formed.The device of a kind of data conversion that the present embodiment provides, comprising:
Division unit 301, the process for data being changed is divided into plural step;
First allocation units 302, block queue, for each step distributes more than one thread for increasing in the middle of adjacent step;
Performance element 303, for making each thread of previous step that queue is blocked in the write of execution result data, and makes each thread of next step from described obstruction queue, read the described execution result data of previous step.
In order to reasonable distribution blocks the record in queue, make the quantity of the record of each thread institute load relatively average, improve treatment effeciency, this device also comprises: the second allocation units, for by the current unappropriated record in execution result data described in described obstruction queue, distribute to the thread recording minimum next step of arbitrary load.
Can select different from mode that is DataBase combining for different databases, this device also comprises:
First linkage unit, for connecting the database storing described data to be converted by JDBC;
And/or the second linkage unit, for connecting the database storing described data to be converted by ODBC.
For example, by division unit 301, the process that data are changed can be divided into three steps, detailed process is as follows:
Described division unit 301, the process for data being changed is divided into acquisition, conversion and exports three steps;
Described performance element 303 comprises:
Obtain subelement, for by each acquisition thread in the more than one acquisition thread of obtaining step, obtain the record in data to be converted, and the record of acquisition is written to one by one in the first obstruction queue;
Conversion subelement, for by each conversion thread in the more than one conversion thread of switch process, reads the record that described first blocks the acquisition in queue one by one, the record that conversion is read, is written in the second obstruction queue one by one by the record after conversion;
Export subelement, for each output thread in the more than one output thread by exporting step, reading the record after the conversion in described second obstruction queue one by one, exporting the record after described conversion.
The database storing data to be converted may be supported to read in batches, may not support to read in batches, and for both of these case, present embodiment obtains data by following two kinds of modes.Described acquisition subelement, during for reading when the database support storing described data to be converted in batches, in batches to data to be converted described in described database request, the request often criticized returns the record in preset recording data to be converted described in several, the record returned by database is stored into first and presets in result set, from the described first result set preset, read record one by one; When the database storing described data to be converted is not supported to read in batches, to store described data to be converted database request described in data to be converted, described data to be converted being stored into second presets in result set, presets result set read record one by one from described second.
The content such as information interaction, implementation between each unit in said apparatus, due to the inventive method embodiment based on same design, particular content can see in the inventive method embodiment describe, repeat no more herein.
The method of a kind of data conversion that the embodiment of the present invention provides and device, have following beneficial effect:
1, the method that a kind of data that the embodiment of the present invention provides are changed and device, the process that data are changed is divided into plural step, obstruction queue is added between adjacent step, execution result data are written to by the step of blocking before queue blocks in queue, the step of blocking after queue obtains the execution result data of previous step from obstruction queue, realize each step by multiple thread parallel process, improve the efficiency of data conversion.
2, the method that a kind of data that the embodiment of the present invention provides are changed and device, each step data changed adopts multithreading to process, and according to cpu resource situation, arranges number of threads flexibly, can utilize cpu resource to greatest extent.
It should be noted that, in this article, the relational terms of such as first and second and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element " being comprised " limited by statement, and be not precluded within process, method, article or the equipment comprising described key element and also there is other same factor.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in the storage medium of embodied on computer readable, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium in.
Finally it should be noted that: the foregoing is only preferred embodiment of the present invention, only for illustration of technical scheme of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (10)
1. a method for data conversion, is characterized in that, comprising:
S1: the process that data are changed is divided into plural step;
S2: increase in the middle of adjacent step and block queue, for each step distributes more than one thread;
S3: the write of execution result data is blocked queue by each thread of previous step, and each thread of next step reads the described execution result data of previous step from described obstruction queue.
2. method according to claim 1, is characterized in that, also comprises:
By the current unappropriated record in execution result data described in described obstruction queue, distribute to the thread recording minimum next step of arbitrary load.
3. method according to claim 1, is characterized in that, described S2, comprising:
Be that arbitrary steps distributes a predetermined number thread according to user instruction.
4. method according to claim 1, is characterized in that, also comprises:
The database storing data to be converted is connected by Java DataBase combining JDBC;
And/or, the database storing data to be converted is connected by open data base connection ODBC.
5. method according to claim 1, is characterized in that,
Described S1 comprises: the process that data are changed be divided into acquisition, conversion and export three steps;
Step S3, comprising:
S31: in the more than one acquisition thread of obtaining step, each acquisition thread obtains the record in data to be converted, and the record of acquisition is written to one by one in the first obstruction queue;
S32: in the more than one conversion thread of switch process, each conversion thread reads the record that described first blocks the acquisition in queue one by one, and the record after conversion is written in the second obstruction queue by record that conversion is read one by one;
S33: in the more than one output thread exporting step, each output thread reads the record after the conversion in described second obstruction queue one by one, exports the record after described conversion.
6. method according to claim 5, is characterized in that, in described S31, each acquisition thread obtains a record in data to be converted, comprising:
When the database support storing described data to be converted is read in batches, in batches to data to be converted described in described database request, the request often criticized returns the record in preset recording data to be converted described in several, the record returned by database is stored into first and presets in result set, from the described first result set preset, read record one by one;
When the database storing described data to be converted is not supported to read in batches, to store described data to be converted database request described in data to be converted, described data to be converted being stored into second presets in result set, presets result set read record one by one from described second.
7. a device for data conversion, is characterized in that, comprising:
Division unit, the process for data being changed is divided into plural step;
First allocation units, block queue, for each step distributes more than one thread for increasing in the middle of adjacent step;
Performance element, for making each thread of previous step that queue is blocked in the write of execution result data, and makes each thread of next step from described obstruction queue, read the described execution result data of previous step.
8. device according to claim 7, it is characterized in that, also comprise: the second allocation units, for by the current unappropriated record in execution result data described in described obstruction queue, distribute to the thread recording minimum next step of arbitrary load.
9. device according to claim 7, is characterized in that,
Described division unit, the process for data being changed is divided into acquisition, conversion and exports three steps;
Described performance element comprises:
Obtain subelement, for by each acquisition thread in the more than one acquisition thread of obtaining step, obtain the record in data to be converted, and the record of acquisition is written to one by one in the first obstruction queue;
Conversion subelement, for by each conversion thread in the more than one conversion thread of switch process, reads the record that described first blocks the acquisition in queue one by one, the record that conversion is read, is written in the second obstruction queue one by one by the record after conversion;
Export subelement, for each output thread in the more than one output thread by exporting step, reading the record after the conversion in described second obstruction queue one by one, exporting the record after described conversion.
10. device according to claim 9, is characterized in that,
Described acquisition subelement, during for reading when the database support storing described data to be converted in batches, in batches to data to be converted described in described database request, the request often criticized returns the record in preset recording data to be converted described in several, the record returned by database is stored into first and presets in result set, from the described first result set preset, read record one by one; When the database storing described data to be converted is not supported to read in batches, to store described data to be converted database request described in data to be converted, described data to be converted being stored into second presets in result set, presets result set read record one by one from described second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060586.5A CN104615490A (en) | 2015-02-05 | 2015-02-05 | Method and device for data conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060586.5A CN104615490A (en) | 2015-02-05 | 2015-02-05 | Method and device for data conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104615490A true CN104615490A (en) | 2015-05-13 |
Family
ID=53149946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510060586.5A Pending CN104615490A (en) | 2015-02-05 | 2015-02-05 | Method and device for data conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104615490A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106649418A (en) * | 2015-11-04 | 2017-05-10 | 江苏引跑网络科技有限公司 | High-performance method for importing data into distributed database through direct connection of fragments in driver |
| CN108089930A (en) * | 2016-11-22 | 2018-05-29 | 北京国双科技有限公司 | The sending method and device of data |
| CN109857565A (en) * | 2019-01-18 | 2019-06-07 | 深圳壹账通智能科技有限公司 | Data processing method, device, computer equipment and storage medium |
| CN110569308A (en) * | 2019-09-10 | 2019-12-13 | 深圳乐信软件技术有限公司 | Data file assembling method, device, equipment and storage medium |
| CN111209123A (en) * | 2019-12-26 | 2020-05-29 | 天津中科曙光存储科技有限公司 | Local storage IO protocol stack data interaction method and device |
| CN111813529A (en) * | 2020-07-20 | 2020-10-23 | 腾讯科技（深圳）有限公司 | Data processing method and device, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090013159A1 (en) * | 2006-02-14 | 2009-01-08 | The University Of Electro-Communications | Queue Processor And Data Processing Method By The Queue Processor |
| CN101854401A (en) * | 2010-02-01 | 2010-10-06 | 深圳市同洲电子股份有限公司 | Data transmission equipment and method and data synchronization method |
| CN103199968A (en) * | 2012-01-09 | 2013-07-10 | 卓望数码技术（深圳）有限公司 | Sending method of messages and system |
| CN103942309A (en) * | 2014-04-18 | 2014-07-23 | 乐得科技有限公司 | Network data acquisition device and method and implementation method of acquisition process |
-
2015
- 2015-02-05 CN CN201510060586.5A patent/CN104615490A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090013159A1 (en) * | 2006-02-14 | 2009-01-08 | The University Of Electro-Communications | Queue Processor And Data Processing Method By The Queue Processor |
| CN101854401A (en) * | 2010-02-01 | 2010-10-06 | 深圳市同洲电子股份有限公司 | Data transmission equipment and method and data synchronization method |
| CN103199968A (en) * | 2012-01-09 | 2013-07-10 | 卓望数码技术（深圳）有限公司 | Sending method of messages and system |
| CN103942309A (en) * | 2014-04-18 | 2014-07-23 | 乐得科技有限公司 | Network data acquisition device and method and implementation method of acquisition process |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106649418A (en) * | 2015-11-04 | 2017-05-10 | 江苏引跑网络科技有限公司 | High-performance method for importing data into distributed database through direct connection of fragments in driver |
| CN108089930A (en) * | 2016-11-22 | 2018-05-29 | 北京国双科技有限公司 | The sending method and device of data |
| CN109857565A (en) * | 2019-01-18 | 2019-06-07 | 深圳壹账通智能科技有限公司 | Data processing method, device, computer equipment and storage medium |
| CN110569308A (en) * | 2019-09-10 | 2019-12-13 | 深圳乐信软件技术有限公司 | Data file assembling method, device, equipment and storage medium |
| CN111209123A (en) * | 2019-12-26 | 2020-05-29 | 天津中科曙光存储科技有限公司 | Local storage IO protocol stack data interaction method and device |
| CN111813529A (en) * | 2020-07-20 | 2020-10-23 | 腾讯科技（深圳）有限公司 | Data processing method and device, electronic equipment and storage medium |
| CN111813529B (en) * | 2020-07-20 | 2023-12-12 | 腾讯科技（深圳）有限公司 | Data processing method, device, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104615490A (en) | Method and device for data conversion | |
| CN101996067B (en) | Data export method and device | |
| CN103559217B (en) | A kind of massive multicast data towards isomeric data storehouse warehouse-in implementation method | |
| US9235622B2 (en) | System and method for an efficient query sort of a data stream with duplicate key values | |
| CN101840430B (en) | Intelligent card database multi-list operation method and device | |
| CN102968498A (en) | Method and device for processing data | |
| CN102682108B (en) | Row and line mixed database storage method | |
| CN103577440A (en) | Data processing method and device in non-relational database | |
| CN110209728A (en) | A kind of Distributed Heterogeneous Database synchronous method, electronic equipment and storage medium | |
| CN109885614B (en) | Data synchronization method and device | |
| CN107291539B (en) | Cluster program scheduler method based on resource significance level | |
| CN106201673B (en) | A kind of seismic data processing technique and device | |
| US20200201844A1 (en) | Cluster-based random walk processing | |
| CN110597851B (en) | Big data based data processing and report display method | |
| CN102779138A (en) | Hard disk access method of real time data | |
| CN104717247A (en) | Method and system for dynamically scheduling storage resources in cloud storage system | |
| CN110688361A (en) | Data migration method, electronic device and computer equipment | |
| CN109213751B (en) | Spark platform based Oracle database parallel migration method | |
| CN102521304A (en) | Hash based clustered table storage method | |
| CN105138632A (en) | Organization and management method for file data and file management server | |
| CN104461931A (en) | Method for output processing of trace logs of multi-kernel storage device and multi-kernel environment | |
| CN101452486A (en) | System data management method for [inscriptions on bones or tortoise shells and apparatus thereof | |
| CN109783476A (en) | The Matrix Analysis Method and system of multi-dimensional data based on database | |
| KR101359034B1 (en) | Apparatus and method for storage of statistical data in network system | |
| CN105279103A (en) | Data management method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150513 |
|
| WD01 | Invention patent application deemed withdrawn after publication |