CN105912385A - Method and device for operating database by application program based on Android system - Google Patents
Method and device for operating database by application program based on Android system Download PDFInfo
- Publication number
- CN105912385A CN105912385A CN201610223817.4A CN201610223817A CN105912385A CN 105912385 A CN105912385 A CN 105912385A CN 201610223817 A CN201610223817 A CN 201610223817A CN 105912385 A CN105912385 A CN 105912385A
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- Prior art keywords
- operation requests
- data base
- application program
- android system
- requests
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/466—Transaction processing
Abstract
The embodiment of the invention provides a method and device for operating a database by an application program based on an Android system. The method comprises the steps that an operation request towards the database is received, wherein the operation request carries an identification and operational information of the application program; the operation request and to-be-processed operation requests are sequenced and stored according to a preset strategy; and operation processes of the Android system database are executed in succession aiming at each operation request. The method and device provided by the invention have the advantages that secondary encapsulation of a standard interface of the Android system database is implemented; and the phenomenon of program abnormity caused by that the database is deadlocked when the database is operated simultaneously by multiple treads in the application program can be avoided.
Description
Technical field
The present embodiments relate to technical field of mobile terminals, particularly relate to a kind of based on Android operation system
Application program to the operational approach of data base and device.
Background technology
Along with the development of mobile Internet, mobile terminal has become work indispensable in people's Working Life
Tool.And the Android operation system being installed on mobile terminal widely used movement in having become as global range
One of operating system.
In Android operation system, use SQLlite data base (being called for short SDB data base) to application program
Data store.In prior art when SDB data base is operated by application program, call
ContentProvider interface, by ContentProvider interface interchange SqliteOpenHelper interface with reality
The now operation to data base.Due to the ContentProvider interface treatment mechanism to data base's operation requests
Not there is Thread safety, when an application program there being multiple thread data base is operated simultaneously,
Database deadlocks, program exception can be caused.
Summary of the invention
The embodiment of the present invention provides a kind of application program based on Android operation system operation side to data base
Method and device, solve has multiple thread data base to be carried out operation to cause number simultaneously in an application program
According to storehouse deadlock, the technical problem of the phenomenon of program exception.
The embodiment of the present invention provides a kind of application program based on Android operation system operation side to data base
Method, including:
Receive the operation requests to data base, described operation requests is carried mark and the operation of application program
Information；
Described operation requests and pending operation requests are ranked up storage according to preset strategy；
The operating process of Android system data base is performed successively for each operation requests.
The embodiment of the present invention provides a kind of application program based on Android operation system to fill the operation of data base
Put, including:
Receiver module, for receiving the operation requests to data base, carries application journey in described operation requests
The mark of sequence and operation information；
Sequence memory module, for by described operation requests and pending operation requests according to preset strategy
It is ranked up storage；
Perform module, for performing the operating process of Android system data base successively for each operation requests.
The embodiment of the present invention provides a kind of application program based on Android operation system operation side to data base
Method and device, by receiving the operation requests to data base, carry the mark of application program in operation requests
With operation information；Operation requests and pending operation requests are ranked up storage according to preset strategy；
The operating process of Android system data base is performed successively for each operation requests.By to operation requests and
Pending operation requests is queued up according to preset strategy and is stored, and performs Android for each operation requests successively
The operating process of system database, it is achieved that to during Android system database manipulation the two of standard interface
Secondary encapsulation, it is to avoid have multiple thread data base to be carried out operation in an application program simultaneously and cause data
Storehouse deadlock, the phenomenon of program exception.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that under,
Accompanying drawing during face describes is some embodiments of the present invention, for those of ordinary skill in the art,
On the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the present invention application program based on the Android operation system operational approach embodiment to data base
The flow chart of one；
Fig. 2 is the present invention application program based on the Android operation system operational approach embodiment to data base
The flow chart of two；
Fig. 3 is that present invention application program based on Android operation system is real to the operational approach device of data base
Execute the structural representation of example one；
Fig. 4 is the present invention application program based on the Android operation system operational approach embodiment to data base
The structural representation of two.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with this
Accompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,
Obviously, described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
The every other embodiment obtained, broadly falls into the scope of protection of the invention.
Fig. 1 is the present invention application program based on the Android operation system operational approach embodiment to data base
The flow chart of one, as it is shown in figure 1, the executive agent of the present invention is application journey based on Android operation system
The operation device of ordered pair data base, this device can integrated in the terminal, mobile terminal for install Android
The mobile terminal of operating system, as being smart mobile phone, panel computer etc..Then the present embodiment provides
The operational approach of data base is included by application program based on Android operation system:
Step 101, receives the operation requests to data base, carries the mark of application program in operation requests
With operation information.
In the present embodiment, when data base is operated by application program, can by user interface or
Data base is operated by backstage.Data base in the present embodiment is that SQLlite data base (is called for short SDB number
According to storehouse).
The mark of the application program carried in operation requests can be the title of application program, stores address
Deng.Operation information includes: action type information, operation source-information etc..Action type information can be wrapped
Include: for data base being increased the operation of data, the operation deleting data or the operation etc. of amendment data.Behaviour
Make source-information can be the operation carried out by user interface or by backstage, data base be carried out
Operation.
Step 102, is ranked up storage by operation requests and pending operation requests according to preset strategy.
In the present embodiment, memory space can be pre-set, by the operation requests being currently received and pending
Operation requests according to preset strategy be ranked up storage, if after again receiving new operation requests, will
This new operation requests is ranked up with original pending operation requests and stores.
In the present embodiment, the sequencing that the preset strategy of sequence can arrive according to operation requests, it is possible to
With the action type according to operation requests, it is also possible to according to the operation source-information of operation requests, it is also possible to
According to the data volume etc. of operation requests operation, this is not limited by the present embodiment.
Step 103, performs the operating process of Android system data base successively for each operation requests.
Specifically, in this enforcement, perform the operation of Android system data base successively for each operation requests
Flow process is after currently coming the most front operation requests and performed the operating process of Android system data base,
Come the operating process of the operation requests execution Android system data base of second, by that analogy, until coming
The operation requests of last performs the operating process of Android system data base.
The operating process performing Android system data base in each operation requests is following flow process:
Operation requests is thrown to ContentProvider interface, so that ContentProvider interface will row
It is sent to SqliteOpenHelper interface, it is achieved the operation to correspondence database in the most front operation requests；
Receive the response message coming the most front operation requests that ContentProvider interface sends.
In the present embodiment, ContentProvider interface and SqliteOpenHelper interface are Android system
The standard interface of data base.
Wherein, currently coming the most front operation requests is that the operation carrying out at first according to preset strategy processing please
Ask.
Illustration is: for each operation requests being ranked up storing according to preset strategy, circulation is held
The above operating process of row, if the operation requests of sequence storage is N number of, then performs the suitable of above operating process
Sequence is followed successively by: the 1st operation requests, and the 2nd operation requests ... n-th operation requests is coming
After the 1st the most front operation requests has performed operations described below, the 2nd operation requests is just the most front for coming
Operation requests, by that analogy, until n-th operation requests has performed aforesaid operations flow process, terminates.
During performing step 103, step 101 and step 102 are the most underway, so according to
Preset strategy be ranked up storage each operation requests order along with the new operation constantly received please
Ask also in being continually changing, but perform step 103 is all to come in remaining operation requests before every time
The operation of operation requests.
The application program based on Android operation system that the present embodiment the provides operational approach to data base, logical
Cross the operation requests received data base, operation requests is carried mark and the operation information of application program；
Operation requests and pending operation requests are ranked up storage according to preset strategy；Successively for each
Operation requests performs the operating process of Android system data base.Owing to operation requests to be sent to Android system
Before system database standard interface, operation requests is carried out the sequence storage of preset strategy, and will come
After the most front operation requests has processed, it is further continued for processing follow-up operation requests, it is achieved that to Android system
The secondary encapsulation of standard interface of system data base, it is to avoid have multiple thread the most right in an application program
Data base carries out operation and causes database deadlocks, the phenomenon of program exception.
Fig. 2 is the present invention application program based on the Android operation system operational approach embodiment to data base
The flow chart of two, such as Fig. 2, the application program based on Android operation system that the present embodiment provides is to data
The operational approach in storehouse is a particularly preferred embodiment compared to embodiment one, then the base that the present embodiment provides
The operational approach of data base is comprised the following steps by the application program in Android operation system.
Step 201, receives the operation requests to data base.
Further, in the present embodiment, operation requests is in addition to carrying the mark of application program, operation information
Also carry the account binding logo of application program.
In the present embodiment, the account binding logo of application program can be user name, mailbox, and mobile phone etc. is only
The information of one mark user.
In the present embodiment, operation information includes: action type information and operation source-information.Wherein operate
Type information includes any one of following action type information: deletion data operation information, increases data
Operation information and amendment data operation information.Operation source-information includes the operation from user interface
Solicited message or the operation requests information from backstage.
Step 202, it is judged that whether operation requests is the operation first of the data base corresponding to application program,
The most then perform step 203, if it is not, then perform step 204.
Step 203, creates two and processes thread, for priority processing thread creation message queue therein.
Specifically, in the present embodiment, two process thread and are respectively priority processing thread PriorityThread
With worker thread WorkThread, PriorityThread creates message queue RequestQueue.
In the present embodiment, when creating PriorityThread, create correspondence for PriorityThread
Handler is that PriorityHandler, PriorityHandler are for being thrown to operation requests
Processing in PriorityThread, PriorityThread is for carrying out according to preset strategy operation requests
Sequence, RequestQueue is for storing the operation requests after sequence.
When creating WorkThread, creating corresponding Handler for WorkThread is
WorkHandler.WorkHandler is for throwing the most front operation requests that comes in PriorityThread
To WorkThread, WorkThread for being sent to Android system data by coming the most front operation requests
The standard interface in storehouse, so that the standard interface of Android system data base is according to operation requests, it is achieved to data
The operation in storehouse.
After execution of step 203, perform step 204.
Step 204, by operation requests and is stored in message team by the priority processing thread being pre-created
Pending operation requests in row is ranked up storage according to the priority of operation information.
Preferably, in this embodiment, the priority that priority is operation source-information of operation information.
Wherein, it is higher than the behaviour from backstage from the priority that the operation requests of user interface is corresponding
Make the priority that request is corresponding.
Step 205, is encapsulated in the account binding logo of application program in the parameter of externally exposure, is formed
The parameter of encapsulation.
In the present embodiment, the account binding logo of application program is encapsulated in the standard of Android system data base
In the parameter that interface externally exposes, form the parameter of encapsulation.This parameter externally exposed can be former Uri
Parameter.
Step 206, performs following operation for each operation requests: successively by the work being pre-created
Thread is thrown to the standard interface of Android system data base by currently coming the most front operation requests, receives peace
The response message coming the most front operation requests that the standard interface of tall and erect system database sends.
In the present embodiment, coming the most front operation requests and be sent to the standard interface of Android system data base
After, be stored in message queue RequestQueue next operation requests by become currently come the most front
Operation requests.
In the present embodiment, owing to step 201, step 202, and step 204 are ongoing, so
The number of the operation requests in message queue RequestQueue and the position of each operation requests are continuous
Change, but in step 206, always it is thrown to Android system by currently coming the most front operation requests
The standard interface of data base, the operation requests that will currently need most process is thrown to Android system data base
Standard interface.
Preferably, in the present embodiment, owing to operation requests also being carried the account binding logo of application program,
In step 205, the account binding logo of the application program in operating system is encapsulated in externally exposure
In parameter, form the parameter of encapsulation, so performing Android system data base for each operation requests successively
Operating process specifically include:
When performing the operating process of Android system data base successively for each operation requests, to operation requests
The parameter of corresponding encapsulation resolves, and performs according to the account binding logo of the application program parsed
Android database manipulation flow process, it is achieved the operation of the data base corresponding to the account binding logo of application program.
Specifically, in the present embodiment, worker thread WorkThread will currently come the most front operation requests
After being thrown to the standard interface of Android system data base, the standard interface of Android system data base is to when front row
Parameter in encapsulation corresponding to the most front operation requests resolves, and according to the application program parsed
Account binding logo obtains corresponding object, it is achieved the data corresponding to the account binding logo of application program
The operation in storehouse.
In the present embodiment, at the standard interface of the Android system data base account binding logo to application program
After the operation of corresponding data base completes, coming the most front operation to worker thread WorkThread transmission please
The response message asked.Receive at worker thread WorkThread and come the response of the most front operation requests and disappear
After breath, indicate and processed coming the most front operation requests.
Step 207, it is judged that whether store the operation requests of sequence in message queue, the most then perform
Step 206, if it is not, then perform step 208.
Step 208, has operation requests in the queue that waits for the arrival of news, perform step 206.
It should be understood that when receiving the message that user is logged off by the account that user interface sends
After, exit priority processing thread PriorityThread and worker thread WorkThread, it is ensured that will not
During use, actively exit thread, reduce the electric quantity loss of mobile terminal.
The application program based on Android operation system that the present embodiment the provides operational approach to data base,
By the priority thread that is pre-created by operation requests and be stored in message queue pending
Operation requests is ranked up storage, by the worker thread being pre-created according to the priority of operation information
To currently come the most front operation requests and be thrown to the standard interface of Android system data base, and receive peace
The response message coming the most front operation requests that the standard interface of tall and erect system database sends, it is ensured that
Data base is operated by the same time i.e. only one of which operation requests of only one of which thread, it is achieved that right
The secondary encapsulation of the standard interface of Android system data base, it is to avoid have multiple thread in an application program
Data base is carried out operation simultaneously and cause database deadlocks, the phenomenon of program exception.
And the operation that the application program based on Android operation system that the present embodiment provides is to data base
Method, when operation requests and pending operation requests are ranked up storage according to preset strategy, in advance
If the priority that strategy is the operation information according to operation requests is ranked up storage, and from user
The priority of the operation requests at operation interface is higher than the priority of the operation requests from backstage, follow-up
When each operation requests is processed, from the operation requests of user interface prior to from backstage
Operation requests, it is possible to ensure the fluency of operation from user interface, it is provided that Consumer's Experience.
Furthermore the operation that the application program based on Android operation system that the present embodiment provides is to data base
Method, is encapsulated in the account binding logo of application program in the parameter of externally exposure, forms encapsulation
Parameter；When performing the operating process of Android system data base successively for each operation requests, to operation
The parameter of the encapsulation that request is corresponding resolves, and binds mark according to the account of the application program parsed
Know and perform Android database manipulation flow process, it is achieved the data corresponding to the account binding logo of application program
The operation in storehouse, by account binding logo, by the different user operation to application program correspondence database
Make a distinction, it is possible to before effectively preventing from carrying out user's switching, and switching in same application
When background thread corresponding to user processes data, the phenomenon of the data entanglement that different user is corresponding.
Fig. 3 is the present invention application program based on the Android operation system operational approach device to data base
The structural representation of embodiment one, as it is shown on figure 3, the device that the present embodiment provides includes: receiver module
301, sequence memory module 302 and execution module 303.
Wherein, receiver module 301, for receiving the operation requests to data base, carries in operation requests
The mark of application program and operation information.Sequence memory module 302, for by operation requests and pending
Operation requests according to preset strategy be ranked up storage.Perform module 303, for successively for each
Operation requests performs the operating process of Android system data base.
The device that the present embodiment provides can perform the technical scheme of embodiment of the method shown in Fig. 1, and it realizes
Principle is similar with technique effect, and here is omitted.
Fig. 4 is the present invention application program based on the Android operation system operational approach device to data base
The structural representation of embodiment two；As shown in Figure 4, the device that the present embodiment provides includes: receive mould
Block 401, sort memory module 402, performs module 403 and package module 404.
Wherein, receiver module 401, for receiving the operation requests to data base, carries in operation requests
The mark of application program and operation information.Sequence memory module 402, for by operation requests and pending
Operation requests according to preset strategy be ranked up storage.Perform module 403, for successively for each
Operation requests performs the operating process of Android system data base.
Further, operation requests also carries the account binding logo of application program: package module 404,
In the parameter that the account binding logo of application program is encapsulated in externally exposure, form the parameter of encapsulation.
Perform module 403, specifically for performing the operation of Android system data base successively for each operation requests
During flow process, the parameter of the encapsulation corresponding to operation requests resolves, and according to the application program parsed
Account binding logo perform Android database manipulation flow process, it is achieved the account binding logo to application program
The operation of corresponding data base.
Preferably, sort memory module 402, specifically for the priority processing thread by being pre-created
By operation requests and the pending operation requests that is stored in message queue according to the priority of operation information
It is ranked up storage.
The priority of operation information is the priority of operation source-information；Wherein, from user operation circle
Priority corresponding to the operation requests in face is higher than the priority corresponding from the operation requests on backstage.
Further, perform module 403, specifically for: perform as follows for each operation requests successively
Operation is not until there being operation requests: asked currently coming the most front operation by the worker thread being pre-created
Seeking the standard interface being thrown to Android system data base, the standard interface receiving Android system data base sends
The response message coming the most front operation requests.
The device that the present embodiment provides can perform the technical scheme of embodiment of the method shown in Fig. 2, and it realizes
Principle is similar with technique effect, and here is omitted.
One of ordinary skill in the art will appreciate that: realize all or part of step of above-mentioned each method embodiment
Suddenly can be completed by the hardware that programmed instruction is relevant.Aforesaid program can be stored in a mobile terminal
In read/write memory medium.This program upon execution, performs to include the step of above-mentioned each method embodiment；
And aforesaid storage medium is the medium that can store program code.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, rather than right
It limits；Although the present invention being described in detail with reference to foregoing embodiments, this area common
Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it,
Or the most some or all of technical characteristic is carried out equivalent；And these amendments or replacement, and
The essence not making appropriate technical solution departs from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. an application program based on the Android operation system operational approach to data base, it is characterised in that
Including:
Receive the operation requests to data base, described operation requests is carried mark and the operation of application program
Information；
Described operation requests and pending operation requests are ranked up storage according to preset strategy；
The operating process of Android system data base is performed successively for each operation requests.
Method the most according to claim 1, it is characterised in that also carrying in described operation requests should
With the account binding logo of program:
Before the described operating process performing Android system data base successively for each operation requests, also wrap
Include:
The account binding logo of application program is encapsulated in the parameter of externally exposure, forms the parameter of encapsulation；
Described successively for each operation requests perform Android system data base operating process specifically include:
When performing the operating process of Android system data base successively for each operation requests, to described operation
The parameter of the encapsulation that request is corresponding resolves, and according to the account binding logo of the application program parsed
Perform Android database manipulation flow process, it is achieved the data base's corresponding to the account binding logo of application program
Operation.
Method the most according to claim 1, it is characterised in that described by described operation requests and treating
The operation requests processed is ranked up storage according to preset strategy and specifically includes:
And it is stored in described operation requests in message queue by the priority processing thread being pre-created
Pending operation requests is ranked up storage according to the priority of operation information.
Method the most according to claim 3, it is characterised in that hold for each operation requests successively
The operating process of row Android system data base specifically includes:
Perform to operate until there not being operation requests as follows for each operation requests successively: by being pre-created
Worker thread will currently come the most front operation requests and be thrown to the standard interface of Android system data base,
Receive the response coming the most front operation requests described in the standard interface transmission of described Android system data base
Message.
5. according to the method described in claim 3 or 4, it is characterised in that described operation information excellent
First level is the priority of operation source-information；
Wherein, it is higher than the behaviour from backstage from the priority that the operation requests of user interface is corresponding
Make the priority that request is corresponding.
6. the application program based on an Android operation system operation device to data base, its feature
It is, including:
Receiver module, for receiving the operation requests to data base, carries application journey in described operation requests
The mark of sequence and operation information；
Sequence memory module, for by described operation requests and pending operation requests according to preset strategy
It is ranked up storage；
Perform module, for performing the operating process of Android system data base successively for each operation requests.
Device the most according to claim 6, it is characterised in that also carrying in described operation requests should
With the account binding logo of program:
Described device also includes: package module, right for being encapsulated in by the account binding logo of application program
In the parameter of outer exposure, form the parameter of encapsulation；
Described execution module, specifically for performing Android system data base's for each operation requests successively
During operating process, the parameter of the encapsulation corresponding to described operation requests resolves, and according to parsing
The account binding logo of application program performs Android database manipulation flow process, it is achieved the account to application program
The operation of the data base that binding logo is corresponding.
Device the most according to claim 6, it is characterised in that described sequence memory module, specifically
For:
And it is stored in described operation requests in message queue by the priority processing thread being pre-created
Pending operation requests is ranked up storage according to the priority of operation information.
Device the most according to claim 8, it is characterised in that described execution module specifically for:
Perform to operate until there not being operation requests as follows for each operation requests successively: by being pre-created
Worker thread will currently come the most front operation requests and be thrown to the standard interface of Android system data base,
Receive the response coming the most front operation requests described in the standard interface transmission of described Android system data base
Message.
Device the most according to claim 8 or claim 9, it is characterised in that described operation information excellent
First level is the priority of operation source-information；
Wherein, it is higher than the behaviour from backstage from the priority that the operation requests of user interface is corresponding
Make the priority that request is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223817.4A CN105912385A (en) | 2016-04-12 | 2016-04-12 | Method and device for operating database by application program based on Android system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223817.4A CN105912385A (en) | 2016-04-12 | 2016-04-12 | Method and device for operating database by application program based on Android system |
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| CN105912385A true CN105912385A (en) | 2016-08-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6205465B1 (en) * | 1998-07-22 | 2001-03-20 | Cisco Technology, Inc. | Component extensible parallel execution of multiple threads assembled from program components specified with partial inter-component sequence information |
| CN1289962A (en) * | 1999-09-23 | 2001-04-04 | 国际商业机器公司 | Establishment of multiple process spanned communication programme in multiple linear equation running environment |
| CN103207806A (en) * | 2012-01-12 | 2013-07-17 | 阿里巴巴集团控股有限公司 | Method and system for sending messages |
| CN104111821A (en) * | 2013-04-18 | 2014-10-22 | 腾讯科技（深圳）有限公司 | Data processing method, data processing device and data processing system |
| CN105094972A (en) * | 2015-07-28 | 2015-11-25 | 百度在线网络技术（北京）有限公司 | Method and device for processing database operation tasks |
-
2016
- 2016-04-12 CN CN201610223817.4A patent/CN105912385A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6205465B1 (en) * | 1998-07-22 | 2001-03-20 | Cisco Technology, Inc. | Component extensible parallel execution of multiple threads assembled from program components specified with partial inter-component sequence information |
| CN1289962A (en) * | 1999-09-23 | 2001-04-04 | 国际商业机器公司 | Establishment of multiple process spanned communication programme in multiple linear equation running environment |
| CN103207806A (en) * | 2012-01-12 | 2013-07-17 | 阿里巴巴集团控股有限公司 | Method and system for sending messages |
| CN104111821A (en) * | 2013-04-18 | 2014-10-22 | 腾讯科技（深圳）有限公司 | Data processing method, data processing device and data processing system |
| CN105094972A (en) * | 2015-07-28 | 2015-11-25 | 百度在线网络技术（北京）有限公司 | Method and device for processing database operation tasks |
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