TWI258089B - System, method and machine-readable storage medium for data synchronization - Google Patents

Abstract

A data synchronization system includes a synchronization server and a client end. The synchronization server is stored with the server end data records and a first transaction record. The synchronization server receives a data transaction request and updates the server end data record according to the data transaction request. Furthermore, when the data transaction request corresponds to the first transaction record, a second transaction record is generated and the first transaction record is over-written. The client end is stored with the client end data record. The client end receives the second transaction record and updates the client end data record accordingly.

Description

1258089 V. INSTRUCTIONS (1) [Technical field to which the invention belongs] '~ This invention is a data synchronization, = technology ~:] and computer readable storage: body 1 is a kind of data synchronization system ::In addition: Synchronization after recording: 聿,: The data record is increased, and the corresponding ς in another storage is used to add, modify, Snapshot Snapshot, and Transaction I. %. The conventional synchronization technology will be all in the second storage: Its +, snapshot synchronization - a storage body ten to maintain two stores:]::: data records overwritten to another, the disadvantage is that when the amount of data is too large _ a, data consistency. The time. Transactional synchronization technology =, this synchronization technology will cost a lot of changes: the behavior of deleting data records: one storage increase, repair increase =, modify, delete data records L = one storage body to execute the corresponding data consistent Sex. However, when it lacks I ”, 、, ', in order to maintain two caches, this synchronization technology will also cost a large ' ^ two, when the number of transactions is too frequent, the synchronization system and method, for the section = two, therefore, need A kind of [invention content] The time of synchronization of the material.

In view of this, a method of the present invention is to save time for data synchronization. /, data synchronization system and according to the above purpose, the invention of the silver A system, including the synchronous service H and the customer = & ... example disclosure - the data synchronization system data record and the first transaction record. And = step server to store the server synchronization server to receive data changes please 1258089 invention description (2) seeking, according to the poor material change request to update the above data transaction request corresponding to the first transaction 1 data record, and when the record is repeated Write the first transaction record. Among them, when the time is ,, the second transaction original poor material is generated, the first transaction record and the second: the server end data record represents the indication of the record. The client's second-moving record in the client represents the operational data. The second transaction record is based on the second transaction record; 2 records. $Account Receiver where the 'client data record represents the original data 2 client data record. This month's κ application is also disclosed - the data includes: the synchronous feeding device receives the data transaction request. The second method 'this method package transaction request update server data 圮·'= step server according to - Transaction record: = server judges the capital overwrite the first transaction, record; owes the second ^ second transaction record and updates the client account record according to the second transaction record; and the client data record represents the original data, first in. Among them, the server records the operating data records f _ ^ , , , and recorded and the second transaction data. Recorded. 曰 No' client data records represent the original assets storage = disclosure - a kind of computer readable storage media for storage of fine memory. This computer program is used to load into the computer system of the terminal and to serve with the customer. [Embodiment] The 呎 冤 冤 、 , , , , , , , 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Figure 1 is a diagram showing the m in accordance with an embodiment of the present invention. In the preferred case, the network architecture package includes the same pirate 21, personal computers 22 and 23 (also referred to as clients 22 and 23). Among them, the personal computers 22 and 23 can be physically connected (wired_c〇nnect i〇n),

0213-A40411TWF(N2) ; B9341 ;SN〇mLL.ptd Page 6 1258089 V. Description of the invention (3) -------- Wireless or hybrid physical connection and wireless connection to the synchronization server 21. Those skilled in the art know that the connection between the personal computer 22, 23 and the synchronization server may need to pass through multiple intermediary nodes, for example, a wireless access point, a base station (base stati〇n), a hub. (hub), bridge, router, or other intermediary node for network communication. Figure 2 is a diagram showing a hardware architecture applied to a synchronization server or a personal computer in accordance with an embodiment of the present invention. One of the synchronization server 2, the personal computers 2 2 and 2 3, including the processing unit 丨i, the memory 丨 2, the storage device 丨3, the output device 144, the input device 丨5, and the communication device 丨6, and Use busbar i 7 to tie them together. In addition, those skilled in the art can also implement one of the synchronization server 21, the personal computers 22 and 23 on other computer system configurations, for example, hand-held devices. , multiprocessor systems, microprocessor-based or programmable consumer electronics (micr〇pr〇cess〇r-baseci programmable consumer electronics), network computers, minicomputers, mainframes and similar devices. The processing unit 丨1 may comprise a single central processing unit (CPU) or a plurality of parallel processing units associated with a parallel computing environment. The memory 12 includes a read only memory (ROM), a flash memory (flash ROM), and/or a ran〇m access memory (RAM) for storing available processing units. 1 1 Execution of the program module and data. In general, a program module contains routines, programs,

0213-A40411TWF(N2); B9341; SNOWBALL.ptd Page 7 1258089 V. Description of invention (4) t (bject), component, etc., used for chaos. The invention can also be implemented in a decentralized operation and execution data synchronization. The second is connected to the remote processing device of the communication network, and the operation server brother, the synchronization server 21, and the personal computer 22 disk 23=.纟 Decentralized ring 仃 也许 也许 仃 仃 仃 仃 仃 仃 仃 仃 仃 仃 仃 也许 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地 本地The storage device is used to read hard disks, floppy disks, CDs, flash drives, storage devices, and/or data. The communication device 16 can be a networked program module with an 802.11 wireless network card/page line, a network card or GPRS compliant, and a third figure showing a body architecture diagram according to an embodiment of the present invention. Synchronous feeding machine 2 〃, 〃 5 乂糸 soft ... mod and data change modal V; r9 ^ = early 兀 11 loaded and executed. Synchronous servo crying 21^/, processing pen data record 215, and transaction storage 锊2 4 storage mourning 13 storage multi-action module m and data synchronization module =\7 with a t-electric rib ownership data loading and carried out. In the personal computer 22, let the processing unit 11 record 225 and the transaction record 2 27 . The individual stores a plurality of data records 233 for storing the processing unit = 23 into the remaining device in the module/module. Row. Personal computer 23 records m, m, 235 / and / / / and the transaction record 2 37. One of the funds, and any of them: = or any of the items in the item warehouse - or a number of related information ί 动; 动 t t can be implemented in a single- or multiple associated data objects early: related Although the case of the case, the single 彳 thousand, the administrative example of the administrative agency on the 8th page 0213-A40411TWF (N2); B9341; SNOWBALL.ptd 1258089 five, invention description (5) material as an example 'but can limit this Inventors, those skilled in the art can apply the present invention to a wide variety of different materials. Figure 4 is a flow chart showing the method of data transaction according to an embodiment of the present invention. The method shown in Fig. 4 is divided into two areas, the left area represents the method performed by the data transaction module 2 2 1 or 2 1 9 , and the right area represents the data transaction management module 2丨1 The method of execution. The two areas are separated by a dashed line to increase readability. In step S411, the data transaction module mi or 219 generates a data transaction request message. The data change request message may include at least one data record change request for each data record, preferably the identification code of the change data, the update block name and its field value. This data request message can be a general text message, encapsulated in a structured message, such as an XML message, or encapsulated in a data object. In step s 4丨3, the data transaction request is transmitted to the data transaction management module 2丨i. In step S421, the data transaction management module 21i receives the data transaction request message. If the message is encapsulated in a structured message or encapsulated in a data object, the structured message interpreter can be used to obtain the attribute value of the data request message or the method of executing the data object in the data object. Data change request message. In step 3423, the corresponding data record 2 1 5 is updated according to the obtained data transaction request message. Executable Standards Search for a (Standard Query Language, SQL) instruction, file operation instruction, or data object method to update the corresponding data record 2丨5. In step S4 2 5 ', it is judged whether there is an old transaction record corresponding to the transaction request message, and if so, step S42 is performed, otherwise step S42 9 is executed. In the steps

0213-A40411TWF(N2) ;B9341 ;SN0WBALL.ptd Page 9 1258089 V. Description of invention (6) S42 7. According to the data request message, the corresponding bird s & heart θ Wu 铮 铮 217. In step S42, the request is sent according to the data transaction 吝a^217. %, generation of transaction record The following is an example to illustrate the data transaction method 1 operation 愔 # 5 a, 5 b, 5 c and 5 d diagrams represent: according to an embodiment of the present invention. In the case of the sample data records, the 6th, 6b, 6c, and 6d Si singers are different from each other and you are asked to indicate the sample transaction record of the invention in different cases. The team started with the picture, as shown in Figures 5a and 5b, the data record 2 1 5 is in the middle - and the other is in the fourth place. The record is 51 1 to 51 7 and the tribute record is 2 2 5 or 23. 5 stores four strokes of Bellow 521 to 5 27 to represent the organization's information. Among them, the capital 4; the material records of the shell material record 5 Π盥 料 记录 52 52 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 , ^ back to records 611 and 613, and the poor material record 2 27 or 23 7 stored _ pen display two moves 6 2 1, used to represent the historical transaction indication. /, dynamic record in this example, first, in step S411 The data transaction module 22 generates a data transaction message, which includes the device code being "1", and the name block value is changed to "A3". In step S413 and step S52i, the transaction management module 21 1 receives the data transaction. Request message. In step §423, the corresponding data record is updated according to the data change request message, and the result is as shown in Fig. 5c. In step S4 2, it is judged that the corresponding old ί record already exists. As shown in the change record 613 in Fig. 6a, the result of the update is as shown in step S427, and the updated result is as shown. The solid figure 7 shows the synchronous governance according to the embodiment of the present invention.

1258089 V. Description of invention (7) Cheng Tu. The method shown in Fig. 7 is divided into two areas, the left area represents the method performed by the data synchronization module 2 2 3 or 23 3 , and the right area represents the execution by the synchronization management module 2 1 3 . method. The two areas are separated by a dashed line to increase readability. In step S711, the data synchronization module 2 23 or 2 3 3 obtains the latest synchronization time from the transaction record 227 or 237. In step S713, a synchronization request message containing the most recent dream time is transmitted. In step S721, the synchronization management module 213 receives the synchronization request message including the most recent synchronization time. In step S723, it is determined whether the transaction record in the cache (cache) needs to be updated. If yes, the process of step S72 5 is performed, otherwise the process of step s 7 27 is performed. It can be judged whether the recent transaction time of the transaction record in the cache space is later than the recent transaction time of the transaction record 2, and it is necessary to update the transaction record in the cache space. In step S 7 2 5, the transaction record in the cache space is updated according to the transaction record 2 1 7 . In step S727, a certain amount of the difference record after the most recent synchronization time is obtained from the cache space. It should be noted here that, in some cases, step S 7 2 7 can take all the transaction records 2 1 7 after the most recent synchronization time. In some cases, it is also possible to obtain the required transaction record directly from the transaction record 2 17 without the cache space. This transaction record can form a general text message string, encapsulated in a structured message, such as an XML message, or encapsulated in a data object. In step S 7 2 9, the transaction record is transmitted to the data synchronization module 2 2 3 or 2 3 3 . In step S71 5, the data synchronization module 2 23 or 233 receives the transaction record. If the transaction is encapsulated in a structured message, or encapsulated in a data

0213-A40411TWF(N2); B9341;SNOWBALL.ptd 1258089 V. Invention Description (8) " ' -- In the object, you can use the structured message interpreter to obtain the attribute of the data request message in the data object. Value or execute the data object method to learn the data change request message. In step s 7 1 7, the obtained transaction record is stored. In step S719, the corresponding data record 225 or 235 is updated based on the acquired transaction record. The standard data search (^andard Query Language, SQL) command, file operation command or data object method can be executed to update the corresponding data record 2 2 5 or 2 3 5 . =% The following is an example to illustrate the operation of the synchronization management method. Assume that at the beginning, as shown in Figures 5c and 5b, four data records 519, 513, 515 and 517 are stored in the data record 215, and four data records 521 to 52 7 are stored in the data record 225 or 235. To represent the organization's information. Among them, the data record 5 1 9 and the data record 5 2 1 have inconsistent data, that is, the data record has not been synchronized. In addition, at the outset, two records 6 11 and 615 are stored in the data record 2 17 , and a transaction record 621 is stored in the data record 227 or 237 to represent the historical change indication. In this example, in the case of step s7, the data synchronization module 22 3 or 233 obtains a recent synchronization time π 8 : 00" from the transaction record 2 27 or 237, which is equal to the time of the latest transaction record. In step S 713, and step "21, the synchronization management module 213 receives the synchronization request message including the most recent synchronization %. It is assumed that the dynamic record in the cache space is the same as the transaction record stored in the storage device 13, and all the transaction steps S72W715 after the latest synchronization time are obtained in the step "" and =27 'by" capture space, the data synchronization module m or 2 33 receives the transaction record 615. In step S717, the received transaction record is stored, and the result is as follows.

1258089 V. Description of invention (9) ' '1~ ------------ The change record 623 in the picture shows. In step ^^, according to the received /, = record update data record, the updated result is shown in Figure 5d. :: The invention of the invention is further proposed - a computer readable storage medium for error storage - computer program <, the above computer program for realizing data display method and synchronous management method, these methods will be executed], ', /, =. The f8 diagram shows a data synchronization method according to an embodiment of the present invention. This storage medium is 8〇, which is used to store a + brain program 82G. The #computer program contains five modules, which are divided into two sections: the logic of 21 9 and 221, and the movement of the data. 4 91 ] a u”, shell material /, motion and synchronization management module 213 pull group 211, lean material synchronization module 223 invention, although the embodiment of m disclosed above, 'it is not intended to limit this ^. a no, heart this artist, no Without departing from the spirit and scope of the present invention, it is possible to make some 毹溆 毹溆 顶 不 ψ ψ ψ ψ ψ ψ ψ ψ ψ ψ 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 Defined

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing the network architecture of a data synchronization system according to an embodiment of the present invention; FIG. 2 is a diagram showing application to a synchronization server or a personal computer according to an embodiment of the present invention. FIG. 3 is a software architecture diagram of a data synchronization system according to an embodiment of the present invention; FIG. 4 is a flowchart showing a method for data transaction according to an embodiment of the present invention; 5a, 5b, 5c and 5d diagram shows exemplary data records in different situations according to an embodiment of the present invention; 6a, 6b, 6c, and 6d diagrams show exemplary transaction records in different situations according to an embodiment of the present invention; 7 is a flow chart showing a method for synchronous management according to an embodiment of the present invention; and FIG. 8 is a schematic diagram showing a computer readable storage medium for dynamically generating a personalized form according to an embodiment of the present invention. [Main component symbol description] 2 1~sync server; 22, 23~ client; 1 1~ processing unit; 1 2~ memory; 1 3~ storage device; 1 4~ output device;

0213-A40411TWF(N2) ;B9341;SNOWBALL.ptd Page 14 1258089 Schematic description of the simple 1 5 ~ input device; 1 6 ~ communication device; 1 7 ~ bus bar; 2 1 9, 2 2 1 ~ data transaction module 2 1 1~ data transaction management module; 2 1 3~ synchronization management module; 2 1 5, 2 2 5, 2 3 5~ data record; 2 1 7 , 2 2 7 , 2 3 7~ transaction record; 2 2 3, 2 3 3~ data synchronization module; S411, S413.....S427, S4 29~ operation steps; S711, S713.....S 727, S7 29~ operation steps; 51 1 > 513 > 515 > 517 > 519 > 521 ^ 5 2 3 > 525 ~ 527 ' 5 2 9 ~ data record; 61 1 ^ 613 > 615 > 6 2 3 > 6 2 3 ~ transaction record ; 8 0 ~ storage media; 8 2 0 ~ data synchronization computer program.

0213-M0411TWF(N2); B9341;SNOWBALL.ptd Page 15

Claims (1)

1258089 VI. Application Patent Range 1. A data synchronization system, comprising: a synchronization server, storing a server end data record and a first transaction record, receiving a data transaction request, and updating the server end according to the data transaction request Recording data, and when the data transaction request corresponds to the first transaction record, generating a second transaction record and overwriting the first transaction record, wherein the server-side data record represents the original data, the first transaction record and The second transaction record represents an indication of the operation data record; and a client stores a client data record, receives the second transaction record, and updates the client data record according to the second transaction record, wherein the client data record Represents the original material. 2. The data synchronization system of claim 1, wherein the second transaction record is stored in a cache space, and the client obtains the second transaction record from the cache space. 3. The data synchronization system of claim 2, wherein the synchronization server further detects whether the transaction record in the cache space is synchronized with a transaction record stored in a storage device, if otherwise, by the storage device The synchronization record in the above cache space is synchronized. 4. The data synchronization system of claim 1, wherein the client further stores a third transaction record, and the transaction time of the third transaction record is earlier than the transaction time of the second transaction record. 5. The data synchronization system of claim 4, wherein the client obtains the transaction time of the third transaction record, and transmits a synchronization request including the transaction time of the third transaction record to the synchronization server. 0213-A40411TWF(N2); B9341; SNOWBALL.ptd Page 16 1258089 VI. Patent Application Scope Good instrument. 6. The data synchronization system of claim 5, wherein the synchronization server receives the synchronization request, obtains the second transaction record, and transmits the second transaction record to the client. 7. The data synchronization system of claim 5, wherein the synchronization server receives the synchronization request including the transaction time of the third transaction record, and transmits a certain number of the transaction time of the third transaction record. The transaction record is given to the above client. 8. A data synchronization method, applied to a network environment including a synchronization server and a client, the method comprising the steps of: the synchronization server receiving a data transaction request; the synchronization server is based on the data transaction Requesting to update a server-side tributary record, wherein the server-side tribute record represents the original tribute, and the synchronization server determines that when the data transaction request corresponds to a first transaction record, a second transaction record is generated and Overwriting the first transaction record, wherein the first transaction record and the second transaction record representative are only for the poor material record, the client receives the second transaction record; and the client is based on the second transaction The record updates a client data record, wherein the client data record represents the original data. 9. The data synchronization method of claim 8, wherein the second transaction record is stored in a cache space, and the client obtains the second transaction record from the cache space. 1 0. If the data synchronization method described in item 9 of the patent application scope is applied, 0213-A40411TWF(N2); B9341; SNOWBALL.ptd Page 17 1258089 6. The scope of application for patents includes the following steps: The above synchronous server detects whether the transaction record in the cache space is different from the record stored in a storage device. Synchronization, if otherwise, the transaction record in the cache space is synchronized by the storage device. 11. The method for synchronizing data according to item 8 of the patent application, further comprising the steps of: the client obtaining a transaction time of a third transaction record, the transaction time of the third transaction record being earlier than the second transaction record a transaction time; and transmitting a synchronization request including one of the transaction times of the third transaction record to the synchronization server. The data synchronization method as described in claim 11 further includes the following steps: after receiving the synchronization request, the synchronization server obtains the second transaction record and transmits the second transaction record to the client . The data synchronization method according to claim 11 further includes the following steps: after the synchronization server receives the synchronization request including the transaction time of the third transaction record, transmitting the third transaction record A certain amount of transaction record after the transaction time is given to the above client. 1 . A computer readable storage medium for storing a computer program for loading into a synchronization server and a client computer system and causing the computer system to perform a data synchronization method. Methods include: 0213-A40411TWF(N2);B9341;SN0WBALL.ptd Page 18 1258089 ::t ' ^ I# M- 13⁄4 ifj The above synchronization server receives a data transaction request: The above synchronization server updates a server according to the above data transaction request The data record, wherein the server data record represents the original data, and the synchronous feeding device determines that the data transaction request corresponds to a first-transaction record; generates a second transaction record and overwrites the first transaction record 5 The first transaction record and the second transaction record represent an indication of the operation data record; the client receives the second transaction record; and the client updates a client data record according to the second transaction record, wherein the client The data record represents the original data. 0213 - A40411 T\VF (N2); B9341; SNOWBALL. p t ci第19页