CN108170752B - Template-based metadata management method and system - Google Patents
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Abstract
The invention discloses a metadata management method and a metadata management system based on a template, wherein the method comprises the steps of establishing a form template according to historical form data, wherein the form template comprises specific objects and formats thereof; establishing a database dictionary comprising the corresponding relation between the abstract object and the concrete object; receiving a form file, and selecting a template according to the form content; reading concrete objects of the table file, and matching each concrete object with the abstract object based on the database dictionary; and after the matching is successful, storing the form file according to the format defined by the template. The invention establishes the association among the concrete object, the template and the abstract object, and realizes the rapid formatting of the table and the cross-table conditional query.
Description
Technical Field
The invention belongs to the field of data management and query statistics, and particularly relates to a metadata management method and system based on a template.
Background
With the development of informatization, more and more industries enter a big data era, big data mining becomes a new development point of an information field, and the increase of more and more table structures and library capacity is accompanied. In this process, we can find that some information elements express the same meaning, such as name, in a person's basic information, passport information or driver's license information and also named XM element in design, as another example, "motor vehicle owner", in motor vehicle registration information, traffic violation information named JDCSYR, and so on. And, fields with similar meanings may be contained in different related data tables, such as a city population information table, which is statistically obtained from the level of the country and the town of the city, and includes many charts, and the format of the charts may be non-uniform, the statistics of the charts consumes a lot of manpower and is prone to errors, thereby causing errors of subsequent queries. Therefore, a fast method for unifying data formats is needed.
In addition, when the data table statistics work is performed, sometimes all specific fields in a plurality of related data tables need to be extracted, for example, if all fields related to the names of people are to be queried, or an information record named as "zhang san" needs to be searched from a plurality of data tables, in order to make a query accurate, a query statement can be constructed, for example, we need to query the fields related to the names of people, the names of people in the table, the names of guardians, the names of spouses, and the like can be coded one by one in a code mode to form a query statement, if data are to be searched from query conditions related to the names in a plurality of information tables, a plurality of groups of codes need to be written, and the query efficiency is low. Furthermore, it is not clear in advance before querying which field names in the tables are related to the names of the people, and the names of the field names with the same meaning in different tables may be different, so that the tables need to be browsed first to record the field names of the related names, so as to ensure the overall querying.
Therefore, how to improve the unified efficiency of the multi-table format and improve the statistical flexibility of the data query is a technical problem to be solved at present.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a metadata management method and a metadata management system based on a template, which are used for creating a table template containing concrete objects and formats thereof and establishing a database dictionary containing corresponding relations between abstract objects and the concrete objects, so as to associate the concrete objects, the template and the abstract objects. The quick format of the table and the cross-table condition query can be realized.
In order to achieve the purpose, the invention adopts the following technical scheme:
a metadata management method based on a template comprises the following steps:
step 1: creating a form template according to historical form data, wherein the form template comprises specific objects and formats thereof;
step 2: establishing a database dictionary comprising the corresponding relation between the abstract object and the concrete object;
and step 3: receiving a form file, and selecting a template according to the form content;
and 4, step 4: reading concrete objects of the table file, and matching each concrete object with the abstract object based on the database dictionary;
and 5: and after the matching is successful, storing the form file according to the format defined by the template.
Further, the form template also includes the form type suitable for the template.
Further, the step 3 specifically includes:
step 3.1: receiving a table file, and analyzing the content of the table file;
step 3.2: classifying according to the table content, and identifying the table type;
step 3.3: and pushing a template to the user according to the form type, and receiving the selection of the user on the template.
Further, the step 4 specifically includes:
reading concrete objects of the table, and matching each concrete object with an abstract object in an object database dictionary; if all the matching is successful, executing the step 5; and if the specific object which cannot be successfully matched exists, reminding a developer of carrying out manual matching according to the field name until all the objects are successfully matched, and executing the step 5.
Further, the manual matching tool is operative to: matching the concrete object which cannot be successfully matched to an abstract object; or expanding a new abstract object, and matching the concrete object which can not be successfully matched to the new abstract object.
According to a second object of the present invention, the present invention further provides a data query method, where the data is managed by the method, including the following steps:
step 1: receiving input of a user about abstract object query conditions;
step 2: acquiring a concrete object corresponding to the abstract object according to a database dictionary;
and step 3: searching a template containing the specific object according to the specific object;
and 4, step 4: obtaining a form adopting the template according to the template;
and 5: and executing the query condition aiming at the table to obtain a query result.
According to a third object of the present invention, there is also provided a template-based metadata management system, comprising a memory and a processor, the memory having stored thereon a table template, a database dictionary, a metadata management database, and a computer program operable on the processor, the processor implementing the following steps when executing the program:
receiving a form file, and selecting a template according to the form content;
reading concrete objects of the table file, and matching each concrete object with the abstract object based on the database dictionary;
after matching is successful, storing the form file according to a format defined by a template;
wherein, the form template comprises specific objects and formats thereof; the database dictionary comprises abstract objects and concrete objects corresponding to the abstract objects.
Further, the processor executes the program to further implement the following steps:
receiving input of a user about abstract object query conditions;
acquiring a concrete object corresponding to the abstract object according to a database dictionary;
searching a template containing the specific object according to the specific object;
obtaining a form adopting the template according to the template;
and executing the query condition aiming at the table to obtain a query result.
According to a fourth object of the present invention, there is also provided a computer readable storage medium storing a table template, a database dictionary, a metadata management database, and a computer program operable on a processor, the processor implementing the following steps when executing the program:
receiving a form file, and selecting a template according to the form content;
reading concrete objects of the table file, and matching each concrete object with the abstract object based on the database dictionary;
after matching is successful, storing the form file according to a format defined by a template;
wherein, the form template comprises specific objects and formats thereof; the database dictionary comprises abstract objects and concrete objects corresponding to the abstract objects.
Further, the processor executes the program to further implement the following steps:
receiving input of a user about abstract object query conditions;
acquiring a concrete object corresponding to the abstract object according to a database dictionary;
searching a template containing the specific object according to the specific object;
obtaining a form adopting the template according to the template;
and executing the query condition aiming at the table to obtain a query result.
The invention has the advantages of
1. The invention realizes the rapid combing of the multi-source data table by the mode of creating the template, and can expand or modify the fields of the template in time, thereby realizing accurate and effective data table formatting.
2. The invention establishes the relation of a data element concrete object-template-abstract object by establishing the template, and can realize the retrieval of the cross-information table, namely, a plurality of tables are used as retrieval sources, the concrete field names can be obtained according to the abstract field names when the abstract field names are adopted for query, then the corresponding templates with the field names are found, and the corresponding data tables are further found, thereby realizing the synchronous query of a plurality of related tables.
3. The invention can realize reverse tracing based on the data type, the data template and the abstract type, namely, when concrete objects have the same name, the template and the abstract type can be inquired for statistical analysis.
Drawings
The accompanying drawings, which 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 are not intended to limit the application.
FIG. 1 is a flow chart of a metadata management method according to the present invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
The embodiment discloses a metadata management method based on a template, which comprises the following steps:
step 1: creating a form template according to the historical form data;
the table template includes the category of the template (related to specific fields, such as student information, financial information, household information, etc.), the specific object of the template (i.e., a specific field name), and the format of each specific object.
Step 2: establishing a database dictionary comprising the corresponding relation between the abstract object and the concrete object;
the database dictionary comprises abstract objects and concrete objects corresponding to the abstract objects, and supports manual expansion of users.
And step 3: receiving a form file, and selecting a template according to the form content;
the method specifically comprises the following steps:
step 3.1: receiving a table file, analyzing the content of the table file, and extracting field name keywords;
step 3.2: classifying according to the table content, and identifying the table type;
step 3.3: and pushing a template to the user according to the form type, and receiving the selection of the user on the template.
And 4, step 4: reading concrete objects of the table file, and matching each concrete object with the abstract object based on the database dictionary;
the method specifically comprises the following steps: reading concrete objects of the table, and matching each concrete object with an abstract object in an object database dictionary; if all the matching is successful, executing the step 5; and if the specific object which cannot be successfully matched exists, reminding a developer of carrying out manual matching according to the field name until all the objects are successfully matched, and executing the step 5.
The manual matching operation is as follows: matching the concrete object which can not be successfully matched to a certain abstract object, or expanding a new abstract object, and matching the concrete object which can not be successfully matched to the new abstract object.
And 5: and after the matching is successful, storing the form file according to the format defined by the template.
A user first defines abstract types, such as people, objects, places and the like, defines a data template under the abstract types, and defines concrete data types under the template. The data structure is defined by using a map < String, Object >, and JSON Object is used for storage management during dumping.
Further, this embodiment also provides a data query method corresponding to the management method, including:
step 1: receiving input of a user about abstract object query conditions;
step 2: acquiring a concrete object corresponding to the abstract object according to a database dictionary;
and step 3: searching a template containing the specific object according to the specific object;
and 4, step 4: obtaining a form adopting the template according to the template;
and 5: and executing the query condition aiming at the table to obtain a query result.
Namely, the correlation analysis of the data types with similar meanings is realized. If the name is an abstract concept, the data types include specific definitions and realizations that the name, the guardian name, the owner name and the like are all the names, when the name is input by inquiring personnel information, different name fields are automatically matched according to different data template name definitions, and an inquiring result is obtained.
For example, the following steps are carried out: for example, the name of a person may be regarded as an abstract type, the concrete type includes, for example, the name of a driver, the name of a spouse, the name of a guardian, and the like, and the concrete type may belong to a certain template or be understood as a table, for example, the name of a driver is in the license information, and the name of a guardian is in the family registration information, and when searching, we only need to specify the abstract name of the driver, and retrieve the real name (name is "zhang san") in the concrete template through the abstract name of the name, so as to complete the positioning query of the concrete template, and according to the obtained concrete template, the query results of all related names can be obtained, that is, the license information and the family registration information related to the name of zhang san are obtained at the same time.
By way of example, it can be appreciated that different data elements, if they are consistent in meaning, may be represented by defining an abstract object that summarizes the meaning. Conversely, we can also find what its abstract object is by means of a data element.
When the data types are of the same name, the affiliated template and the abstract type can be inquired for statistical analysis. The data structure is also defined by map < String, Object >, and JSON Object is used for storage management during dumping.
Example two
An object of the present embodiment is to provide a template-based metadata management system.
A template-based metadata management system comprising a memory having stored thereon a table template, a database dictionary, a metadata management database, and a computer program operable on a processor, the processor when executing the program implementing the steps of:
receiving a form file, and selecting a template according to the form content;
reading concrete objects of the table file, and matching each concrete object with the abstract object based on the database dictionary;
and after the matching is successful, storing the form file according to the format defined by the template.
Preferably, the table template includes a category (related to a specific field, such as student information, financial information, household information, etc.) of the template, a specific object (i.e., a specific field name) of the template, a format of each specific object, and the like.
The database dictionary comprises abstract objects and concrete objects corresponding to the abstract objects, and supports manual expansion of users.
Further, the processor, when executing the program, may further implement the steps of:
receiving input of a user about abstract object query conditions;
acquiring a concrete object corresponding to the abstract object according to a database dictionary;
searching a template containing the specific object according to the specific object;
obtaining a form adopting the template according to the template;
and executing the query condition aiming at the table to obtain a query result.
EXAMPLE III
An object of the present embodiment is to provide a computer-readable storage medium.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, performs the steps of:
receiving a form file, and selecting a template according to the form content;
reading concrete objects of the table file, and matching each concrete object with the abstract object based on the database dictionary;
and after the matching is successful, storing the form file according to the format defined by the template.
Preferably, the table template includes a category (related to a specific field, such as student information, financial information, household information, etc.) of the template, a specific object (i.e., a specific field name) of the template, a format of each specific object, and the like.
The database dictionary comprises abstract objects and concrete objects corresponding to the abstract objects, and supports manual expansion of users.
Further, the processor, when executing the program, may further implement the steps of:
receiving input of a user about abstract object query conditions;
acquiring a concrete object corresponding to the abstract object according to a database dictionary;
searching a template containing the specific object according to the specific object;
obtaining a form adopting the template according to the template;
and executing the query condition aiming at the table to obtain a query result.
The steps involved in the apparatuses of the above second and third embodiments correspond to the first embodiment of the method, and the detailed description thereof can be found in the relevant description of the first embodiment. The term "computer-readable storage medium" should be taken to include a single medium or multiple media containing one or more sets of instructions; it should also be understood to include any medium that is capable of storing, encoding or carrying a set of instructions for execution by a processor and that cause the processor to perform any of the methods of the present invention.
The invention establishes the relation of a data element concrete object-template-abstract object by establishing the template, and can realize the retrieval of the cross-information table, namely, a plurality of tables are used as retrieval sources, the concrete field names can be obtained according to the abstract field names when the abstract field names are adopted for query, then the corresponding templates with the field names are found, and the corresponding data tables are further found, thereby realizing the synchronous query of a plurality of related tables.
Those skilled in the art will appreciate that the modules or steps of the present invention described above can be implemented using general purpose computer means, or alternatively, they can be implemented using program code that is executable by computing means, such that they are stored in memory means for execution by the computing means, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps of them are fabricated into a single integrated circuit module. The present invention is not limited to any specific combination of hardware and software.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (8)
1. A metadata management method based on a template is characterized by comprising the following steps:
step 1: creating a form template according to historical form data, wherein the form template comprises specific objects and formats thereof;
step 2: establishing a database dictionary comprising a corresponding relation between an abstract object and a concrete object;
and step 3: receiving a form file, and selecting a template according to the form content;
and 4, step 4: reading concrete objects of the table file, and matching each concrete object with the abstract object based on the database dictionary;
and 5: after matching is successful, storing the form file according to a format defined by a template;
the template-based metadata management method further comprises a data query method:
receiving input of a user about abstract object query conditions;
acquiring a concrete object corresponding to the abstract object according to a database dictionary;
searching a template containing the specific object according to the specific object;
obtaining a form adopting the template according to the template;
and executing the query condition aiming at the table to obtain a query result.
2. The template-based metadata management method according to claim 1, wherein the form template further includes a form type to which the template is applicable.
3. The template-based metadata management method according to claim 1, wherein the step 3 specifically includes:
step 3.1: receiving a table file, and analyzing the content of the table file;
step 3.2: classifying according to the table content, and identifying the table type;
step 3.3: and pushing a template to the user according to the form type, and receiving the selection of the user on the template.
4. The template-based metadata management method according to claim 1, wherein the step 4 specifically includes:
reading concrete objects of the table, and matching each concrete object with an abstract object in an object database dictionary; if all the matching is successful, executing the step 5; and if the specific object which cannot be successfully matched exists, reminding a developer of carrying out manual matching according to the field name until all the objects are successfully matched, and executing the step 5.
5. A template-based metadata management method according to claim 4, characterized in that said manual matching means is operative to: matching the concrete object which cannot be successfully matched to an abstract object; or expanding a new abstract object, and matching the concrete object which can not be successfully matched to the new abstract object.
6. A method of data query, said data being managed using the method of any one of claims 1 to 5, comprising the steps of:
step 1: receiving input of a user about abstract object query conditions;
step 2: acquiring a concrete object corresponding to the abstract object according to a database dictionary;
and step 3: searching a template containing the specific object according to the specific object;
and 4, step 4: obtaining a form adopting the template according to the template;
and 5: and executing the query condition aiming at the table to obtain a query result.
7. A template-based metadata management system comprising a memory and a processor, wherein the memory has stored thereon a table template, a database dictionary, a metadata management database, and a computer program operable on the processor, the processor when executing the program implementing the steps of:
receiving a form file, and selecting a template according to the form content;
reading concrete objects of the table file, and matching each concrete object with the abstract object based on the database dictionary;
after matching is successful, storing the form file according to a format defined by a template;
wherein, the form template comprises specific objects and formats thereof; the database dictionary comprises abstract objects and concrete objects corresponding to the abstract objects;
the processor, when executing the program, further implements the steps of:
receiving input of a user about abstract object query conditions;
acquiring a concrete object corresponding to the abstract object according to a database dictionary;
searching a template containing the specific object according to the specific object;
obtaining a form adopting the template according to the template;
and executing the query condition aiming at the table to obtain a query result.
8. A computer-readable storage medium storing a table template, a database dictionary, a metadata management database, and a computer program operable on a processor, the program when executed by the processor implementing the steps of:
receiving a form file, and selecting a template according to the form content;
reading concrete objects of the table file, and matching each concrete object with the abstract object based on the database dictionary;
after matching is successful, storing the form file according to a format defined by a template;
wherein, the form template comprises specific objects and formats thereof; the database dictionary comprises abstract objects and concrete objects corresponding to the abstract objects;
the processor, when executing the program, further implements the steps of:
receiving input of a user about abstract object query conditions;
acquiring a concrete object corresponding to the abstract object according to a database dictionary;
searching a template containing the specific object according to the specific object;
obtaining a form adopting the template according to the template;
and executing the query condition aiming at the table to obtain a query result.
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| CN111507075B (en) * | 2019-01-31 | 2023-06-16 | 贵州白山云科技股份有限公司 | Method and device for converting data format |
| CN110275861B (en) * | 2019-06-25 | 2021-09-17 | 北京明略软件系统有限公司 | Data storage method and device, storage medium and electronic device |
| CN110389959A (en) * | 2019-07-26 | 2019-10-29 | 中移电子商务有限公司 | A kind of data managing method, device and storage medium |
| CN110705226A (en) * | 2019-08-22 | 2020-01-17 | 平安科技（深圳）有限公司 | Spreadsheet creating method and device and computer equipment |
| CN113407723A (en) * | 2021-07-16 | 2021-09-17 | 湖南五凌电力科技有限公司 | Multi-source heterogeneous power load data fusion method, device, equipment and storage medium |
| CN113360776B (en) * | 2021-07-19 | 2023-07-21 | 西南大学 | Cross-table data mining-based technological resource recommendation method |
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