CN112000349B - Data upgrading method, device and medium based on SaaS - Google Patents
Data upgrading method, device and medium based on SaaS Download PDFInfo
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- 238000012545 processing Methods 0.000 claims abstract description 12
- 238000012795 verification Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
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Abstract
The application discloses a data upgrading method, equipment and medium based on SaaS, wherein the method comprises the following steps: the client determines that the current database needs to be subjected to data upgrading, and the client is in the SaaS system; acquiring an upgrade configuration file from a server corresponding to the client, wherein the upgrade configuration file comprises an SQL script, the SQL script comprises a transaction processing layer, and DDL and DML in the transaction processing layer are stored in different sets; and based on the difference between the target version and the current version of the database, performing data upgrading by using the SQL script, wherein when performing data upgrading by using the SQL script, DDL is executed first, and then DML is executed. When the SQL script is executed to update data, DDL without opening the transaction is executed first, then DML with the transaction being required to be opened is executed, so that consistency of the transaction is not required to be concerned in the whole updating process, the system can meticulously realize control logic of the transaction, and if errors occur in the DDL, other data can be not influenced, and the updating safety and consistency are effectively ensured.
Description
Technical Field
The application relates to the field of SaaS, in particular to a data upgrading method, equipment and medium based on SaaS.
Background
SaaS is an abbreviated name for Software-as-a-Service, meaning that Software is a Service, i.e., providing a Software Service over a network. In SaaS mode, when a multi-tenant database is distributed among multiple database schemas in multiple database instances, regular maintenance and upgrade of the database scripts is required, problems are typically faced, such as: if the database is upgraded, because a developer writes SQL script errors or upgrade failures are caused by network reasons, the other data is difficult to ensure not to be influenced, the security and consistency of the upgrade are difficult to ensure,
disclosure of Invention
In order to solve the above problems, the present application proposes a data upgrading method based on SaaS, including: the client accesses the SaaS system and determines that the current database needs to be subjected to data upgrading; acquiring an upgrade configuration file from the SaaS system, wherein the upgrade configuration file comprises an SQL script, the SQL script comprises a transaction processing layer, and data definition sentences DDL and data manipulation sentences DML in the transaction processing layer are stored in different sets; and based on the difference between the target version and the current version of the database, performing data upgrading by using the SQL script, wherein when the SQL script is used for performing data upgrading, the DDL is executed first, and then the DML is executed.
In one example, the upgrade configuration file is in XML format, and the upgrade configuration file includes: the version number layer baseVersion comprises version numbers corresponding to the clients; the SQL script layer sqlText comprises the SQL script; the method layer method comprises a corresponding self-defining method.
In one example, the SQL script comprises: and the pre-verification layer is used for pre-verifying the format of the SQL script.
In one example, the SQL script comprises: and the check layer is used for judging whether a new field or a new table created by each statement in the SQL script exists or not, and executing corresponding operation.
In one example, each statement in the transaction layer is partitioned by a preset symbol; and the check layer judges whether a new field or a new table created by each statement exists or not sentence by sentence aiming at each statement in the SQL script based on the preset symbol, and executes corresponding operation.
In one example, the SQL script comprises: and the data backup layer is used for backing up the data corresponding to the current database to a backup server.
In one example, the SQL script comprises: the exception handling layer is used for storing the exception data when the data upgrading is abnormal, and sending a notification to related personnel in a preset mode.
In one example, the method further comprises: receiving personalized demand information sent by a tenant; determining an upgrade configuration file for the personalized demand information; and using the SQL script in the upgrading configuration file of the personalized demand information to upgrade the data of the database corresponding to the tenant.
On the other hand, the application also provides a data upgrading device based on the SaaS, which comprises: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method as described in any one of the examples above.
In another aspect, the present application further proposes a non-volatile computer storage medium storing computer executable instructions for data upgrade based on SaaS, wherein the computer executable instructions are configured to: a method as in any one of the examples above.
The data upgrading method based on the SaaS can bring the following beneficial effects:
when the SQL script is executed to update data, DDL without opening the transaction is executed first, then DML with the transaction being required to be opened is executed, so that consistency of the transaction is not required to be concerned in the whole updating process, the system can meticulously realize control logic of the transaction, and if errors occur in the DDL, other data can be not influenced, and the updating safety and consistency are effectively ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
fig. 1 is a flow chart of a data upgrading method based on SaaS in an embodiment of the present application;
fig. 2 is a schematic diagram of a SaaS-based data upgrading device in an embodiment of the present application;
fig. 3 is a specific flow chart of a data upgrading method based on SaaS in the embodiment of the present application.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
As shown in fig. 1 and fig. 3, an embodiment of the present application provides a data upgrading method based on SaaS, including:
s101, the client accesses the SaaS system and determines that the current database needs to be subjected to data upgrading.
In the SaaS mode, a plurality of software is stored in the SaaS system (i.e., a server corresponding to the SaaS), and the software needs to be updated from time to time in the use process. When a user (also called a tenant) accesses the SaaS system through a local client, if the software to be accessed is updated relative to the software accessed last time, the user needs to update the database (i.e. upgrade the data) locally so as to ensure that the software can be used normally.
In general, when a client is used to interact data with the SaaS system, a first page of the system is required to request a response, at this time, the client may determine whether version update is required, and if the current version of the database is smaller than the target version (i.e., the version of the corresponding database in the SaaS system), it is indicated that the user needs to update the local database.
S102, acquiring an upgrade configuration file from the SaaS system, wherein the upgrade configuration file comprises an SQL script, the SQL script comprises a transaction layer, and data definition sentences DDL and data manipulation sentences DML in the transaction layer are stored in different sets.
And S103, based on the difference value between the target version and the current version of the database, performing data upgrading by using the SQL script, wherein when the SQL script is used for performing data upgrading, the DDL is executed first, and then the DML is executed.
After the client determines that the local database needs to be updated, a corresponding upgrade configuration file can be acquired in the SaaS system, and then the upgrade configuration file is used for carrying out corresponding data upgrade on the local database.
In the process of upgrading by using the upgrade configuration file, the upgrade content can be read based on the difference between the target version and the current version of the database, and the upgrade is circularly executed in a form of a linked list, for example, the current version of the database is V1.0.3 version, the target version is V1.0.5 version, and only the upgrade configuration files corresponding to the V1.0.4 version and the V1.0.5 version are required to be obtained.
When upgrading using an upgrade configuration file, the upgrade is usually performed using an SQL script in the upgrade configuration file, where SQL is a short name of Structured Query Language, and where the text name is called a structured query statement (or structured query language), which is a database query and programming language used to access data and query, update, and manage a relational database system. Whereas SQL script refers to a script compiled using the SQL language.
The SQL script includes a transaction layer, and the transaction layer generally includes various statements, for example, a data definition statement (Data Definition Language, DDL), a data manipulation statement (Data Manipulation Language, DML), a data control statement (Data Control Language, DCL), etc., where DDL is mainly used to manipulate objects and attributes of objects, and such objects include a database itself and database objects, for example, tables, views, etc., which may be fields of a CREATE data table, an ALTER change table, a DROP delete table, etc. Whereas DML is mainly used to manipulate data contained in database objects, that is to say the unit of manipulation is a record, which may be an INSERT record, the contents of an UPDATE modification record, a record in DELETE table, etc.
Because the DDL statement is automatically submitted and cannot roll back, a developer can put the DDL statement and the DML statement in different sets when developing, the transaction does not need to be started when the DDL set is executed, the transaction needs to be started when the DML set is updated, when the SQL script is executed to update data, the DDL which does not need to be started is executed first, then the DML which needs to be started is executed, the consistency of the transaction does not need to be concerned in the whole updating process, the system can meticulously realize the control logic of the transaction, and if errors occur in the DDL, the system can also realize the data which does not influence other data, and the security and consistency of the updating are effectively ensured.
In one embodiment, the upgrade configuration file is in XML format, and the upgrade configuration file may include: version number layer baseVersion, SQL script layer sqlText and custom method layer method, the version number layer contains the version number corresponding to the client; the SQL script layer comprises an SQL script; the custom method layer includes corresponding custom methods for handling complex logic data upgrade operations, such as related history data processing, table look-up, etc. The above-mentioned performing the upgrade in a loop refers to performing the upgrade in a loop basevision. When upgrading, DDL and DML are respectively stored in two containers, and a methodName is fetched and put into the corresponding containers to prepare the reflection call. The upgrade configuration file may specifically include the following table:
in one embodiment, the SQL script may further comprise a pre-verification layer besides the transaction layer, wherein the pre-verification layer is mainly used for pre-verifying the format of the SQL script, and particularly, various visitors in the guide, which realize the visitor mode, can be used for reading and analyzing the SQL, and whether the format of the data script is correct or not is checked in advance before the SQL is executed, so that the operation is safer and more stable.
The SQL script may also contain a check layer that is checked to determine if a new field or new table created in the SQL script already exists. In view of the characteristics of the database, if there is an SQL script in the upgrade content that creates a table or creates a new field, it needs to be determined whether the table or the field already exists, if so, execution is not needed, otherwise, a system exception may be reported. In the embodiment of the application, the SQL sentences in the sqlText are collected and segmented through preset symbols, for example, through symbols "; "divide, the check layer can judge sentence by sentence at this time, for example: the table created by the CREATE statement does not need to be created if it exists, the ATERL ADD statement does not need to be executed if it already contains the target creation field, etc.; the corresponding operation is automatically judged and executed through the check layer, so that the workload of a developer can be saved, the safety is improved, the developer does not need to consider a lot of complicated judgment logics any more, and only needs to care about SQL sentences.
The SQL script can also comprise a data backup layer which is mainly used for backing up the data corresponding to the current database to the backup server. When the database is updated, the database schema of the current tenant is backed up to the backup server, and if the database schema exists in the backup server, the database schema is directly covered, so that each tenant can have a set of data structure with a previous version, and errors or disputes after the data is updated are avoided.
The SQL script can also comprise an exception handling layer which is mainly used for storing exception data when the data is updated and sending a notification to related personnel in a preset mode. Specifically, when the upgrade fails or is abnormal due to SQL errors written by developers or due to network faults and the like, the reasons of users in the data service upgrade can be recorded through a server asynchronous message notification processing mode. The normal use of the products of the main line and the office process of the tenant is not affected, and then the server operation and maintenance personnel are rapidly notified in a preset mode, such as a short message mode or a mail mode, so that the quick sudden problem is positioned and solved.
In one embodiment, the current tenant demands gradually develop toward individualization, the variability among products of the same specification gradually becomes primary, the customer demands gradually develop toward a small amount of diversity, and the individual styles are represented and the individual demands are satisfied by customizing the products. Thus, when a tenant wants to make some personalized customization in the process of using the software, a corresponding personalized demand can be sent. When the SaaS system receives the personalized demand, the corresponding software development can be carried out through a developer, the corresponding upgrade configuration file is developed, a tenant can acquire the upgrade configuration file through a client, then the corresponding data upgrade is carried out on a local database, the demands of other online tenants are stabilized, the customized demand of the tenant is also met, and the public node and private node deployment of enterprise-level application is realized.
As shown in fig. 2, the embodiment of the present application further provides a data upgrading device based on SaaS, including:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of the embodiments described above.
The embodiment of the application also provides a non-volatile computer storage medium for data upgrading based on SaaS, which stores computer executable instructions, wherein the computer executable instructions are configured to: the method as in any above embodiments.
All embodiments in the application are described in a progressive manner, and identical and similar parts of all embodiments are mutually referred, so that each embodiment mainly describes differences from other embodiments. In particular, for the apparatus and medium embodiments, the description is relatively simple, as it is substantially similar to the method embodiments, with reference to the section of the method embodiments being relevant.
The devices and media provided in the embodiments of the present application are in one-to-one correspondence with the methods, so that the devices and media also have similar beneficial technical effects as the corresponding methods, and since the beneficial technical effects of the methods have been described in detail above, the beneficial technical effects of the devices and media are not described in detail herein.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (9)
1. The data upgrading method based on the SaaS is characterized by comprising the following steps of:
the client accesses the SaaS system and determines that the current database needs to be subjected to data upgrading;
acquiring an upgrade configuration file from the SaaS system, wherein the upgrade configuration file comprises an SQL script, the SQL script comprises a transaction processing layer, and data definition sentences DDL and data manipulation sentences DML in the transaction processing layer are stored in different sets;
based on the difference value between the target version and the current version of the database, performing data upgrading by using the SQL script, wherein when the SQL script is used for data upgrading, the DDL is executed first, and then the DML is executed;
the upgrade configuration file is in an XML format, and the upgrade configuration file comprises:
the version number layer baseVersion comprises version numbers corresponding to the clients;
the SQL script layer sqlText comprises the SQL script;
the method layer method comprises a corresponding self-defining method.
2. The method of claim 1, wherein the SQL script comprises:
and the pre-verification layer is used for pre-verifying the format of the SQL script.
3. The method of claim 1, wherein the SQL script comprises:
and the check layer is used for judging whether a new field or a new table created by each statement in the SQL script exists or not, and executing corresponding operation.
4. A method according to claim 3, wherein each statement in the transaction layer is partitioned by a preset symbol;
and the check layer judges whether a new field or a new table created by each statement exists or not sentence by sentence aiming at each statement in the SQL script based on the preset symbol, and executes corresponding operation.
5. The method of claim 1, wherein the SQL script comprises:
and the data backup layer is used for backing up the data corresponding to the current database to a backup server.
6. The method of claim 1, wherein the SQL script comprises:
the exception handling layer is used for storing the exception data when the data upgrading is abnormal, and sending a notification to related personnel in a preset mode.
7. The method according to claim 1, wherein the method further comprises:
receiving personalized demand information sent by a tenant;
determining an upgrade configuration file for the personalized demand information;
and using the SQL script in the upgrading configuration file of the personalized demand information to upgrade the data of the database corresponding to the tenant.
8. A SaaS-based data upgrade apparatus, comprising:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-7.
9. A non-volatile computer storage medium storing computer executable instructions for SaaS-based data upgrades, the computer executable instructions configured to: a method as claimed in any one of claims 1 to 7.
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| CN113110844A (en) * | 2021-04-14 | 2021-07-13 | 多点(深圳)数字科技有限公司 | Database updating method and system |
| CN116108811B (en) * | 2023-04-11 | 2023-08-11 | 天津联想协同科技有限公司 | Method and system for upgrading content of SaaS application specific format document |
| CN116226092B (en) * | 2023-04-24 | 2023-08-08 | 北京炎黄广智科技发展有限责任公司 | Database updating method and device |
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