CN114443913B - Metadata multi-function multi-condition based user-defined query method, system and medium - Google Patents
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Abstract
The invention discloses a self-defined query method, a system and a computer readable storage medium based on metadata multi-function and multi-condition, which are characterized in that a metadata management structure based on a database, a data interface and a data file is constructed; sorting the metadata management structure according to a preset classification rule to obtain a query directory; constructing a metadata query condition and a metadata function aiming at the query catalog; and responding to the initiated query requirement, determining metadata corresponding to the query requirement reading, and analyzing the structured data to generate a corresponding presentation result. The invention realizes the complex multi-function multi-condition hierarchical authority control metadata custom query and complex result display method based on memory operation and data stream processing, has zero code development query data requirement, reduces the cost, improves the efficiency, and provides good use experience for frequent modification after templating.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a user-defined query method and system based on metadata, multiple functions and multiple conditions and a computer readable storage medium.
Background
With the development of big data and data mining related technologies, various statistical data analysis tools are developed in a large number. Such as R, Python, SAS, SPSS, Tableau, Stata, EViews, Markov, etc. In addition, in the enterprise information construction process, due to the influence of the stage, the technical performance, other economic factors, human factors and other factors of the construction and implementation of each business system of the data management system, a large amount of business data adopting different storage modes are accumulated in the enterprise in the development process, including the fact that the adopted data management systems are different greatly and range from a simple file database to a complex network database. Therefore, the existing digital information system has great limitation on query, only can perform customized query of a single table of a single database, cannot realize data query by crossing tables and databases, has great limitation on the types of conditions, and can perform only some simple text and time input. The inquiry result data can not be subjected to authority control, desensitization, encryption and decryption, conversion and standard verification processing, and only customized development can be performed, so that the cost is high, the efficiency is low, and the modification is frequent.
Disclosure of Invention
The present invention is directed to a method, a system and a computer readable storage medium for providing a user-defined query based on metadata multi-function and multi-condition, so as to solve the above technical problems.
In order to achieve the above object, the present invention provides a self-defined query method based on metadata multiple functions and multiple conditions, which comprises the following steps:
step S1, a metadata management structure based on the database, the data interface and the data file is constructed, wherein,
the method comprises the steps of constructing a metadata management structure of a database, scanning the database, acquiring all library, table and field information in the database to form basic metadata, identifying a classification label corresponding to the basic metadata to obtain first metadata comprising the basic metadata and the classification label thereof, and constructing the metadata management structure of the database;
the construction step of the metadata management structure of the data interface comprises the steps of providing an online dynamic interface document as second metadata to form the metadata management structure of the data interface;
the method comprises the steps of constructing a metadata management structure of a data file, wherein the step of constructing the metadata management structure of the data file comprises identifying classification tags corresponding to the data file and a storage directory so as to obtain third metadata comprising the storage directory and the classification tags of the data file, and the third metadata is used for forming the metadata management structure of the data file;
step S2, arranging the first metadata, the second metadata and the third metadata in the metadata management structure according to a preset classification rule to obtain a query directory;
step S3, constructing a metadata query condition and a metadata function aiming at the query catalog;
step S4, responding the initiated query requirement, determining the metadata query condition and the metadata function corresponding to the query requirement, calling the corresponding metadata query condition and the metadata function, and querying the corresponding query result in the query directory;
step S5, reading corresponding first metadata, second metadata, or third metadata according to the query result, and analyzing the corresponding first metadata, second metadata, or third metadata to generate a corresponding presentation result.
Preferably, the step of constructing the metadata management structure of the data interface includes a third-party data interface to be docked and a third-party data interface to be docked with the self-party; wherein,
the step of constructing the data management structure of the third-party data interface to be docked comprises the following steps: according to the security key and the interface information of the data interface to be butted, carrying out configuration authorization on the data interface to be butted, and providing the online dynamic interface document as second metadata after authorization to form a metadata management structure of the data interface;
and directly providing the online dynamic interface document as second metadata for a third-party data interface to be in butt joint with the local side so as to form a metadata management structure of the data interface.
Preferably, the metadata query condition includes a filtering condition and a matching condition.
Preferably, the metadata function includes a function that performs secondary processing on the metadata.
The invention also provides a self-defined query system based on metadata multi-function multi-condition, which comprises a memory, a processor, a computer program stored in the memory and capable of running on the processor, and a controller for receiving the processor instruction, wherein the processor executes the computer program to realize the steps of the self-defined query method based on metadata multi-function multi-condition.
The present invention also provides a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the metadata multi-function multi-conditional custom query method as described in any one of the above.
In the technical scheme of the invention, the self-defined query method based on metadata multi-function multi-condition comprises the steps of constructing a metadata management structure based on a database, a data interface and a data file; sorting the first metadata, the second metadata and the third metadata in the metadata management structure according to a preset classification rule to obtain a query directory; constructing a metadata query condition and a metadata function aiming at the query catalog; responding to the initiated query requirement, determining a metadata query condition and a metadata function corresponding to the query requirement, calling the corresponding metadata query condition and the corresponding metadata function, and querying a corresponding query result in the query directory; and reading corresponding first metadata, second metadata or third metadata according to the query result, and analyzing the structured data (namely the corresponding first metadata, second metadata or third metadata) to generate a corresponding presentation result. The invention acquires executable structured data by a dynamically configured parameter, function and hierarchy authority forming method based on memory operation and data flow processing, stores the executable structured data in a memory and a disk forming template, calculates the structured data in the memory, matches with a data acquisition channel, and performs multi-function operation processing on the acquired data result after acquiring the data through multiple conditions, so that the data is presented flexibly. In addition, a complex multi-function multi-condition hierarchical authority control metadata custom query and complex result display method meets the requirement of zero-code development query data, reduces cost, improves efficiency, and provides good use experience for frequent modification after templating.
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FIG. 1 is a flow chart illustrating a method for customized query based on metadata multi-function and multi-condition in an embodiment of the present invention;
FIG. 2 is a diagram illustrating a hardware architecture of a computer system running a custom query method based on metadata multi-function and multi-conditions according to an embodiment of the present invention;
the objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
Referring to fig. 1, to achieve the above object, an embodiment of the present invention provides a self-defined query method based on metadata multi-function and multi-conditions, including:
step S1, a metadata management structure based on the database, the data interface and the data file is constructed, wherein,
the method comprises the steps of constructing a metadata management structure of a database, scanning the database, acquiring all library, table and field information in the database to form basic metadata, identifying a classification label corresponding to the basic metadata to obtain first metadata comprising the basic metadata and the classification label thereof, and constructing the metadata management structure of the database;
the construction step of the metadata management structure of the data interface comprises the steps of providing an online dynamic interface document as second metadata to form the metadata management structure of the data interface;
the step of constructing the metadata management structure of the data file comprises identifying a corresponding classification label for the data file and the storage directory to obtain third metadata comprising the storage directory and the classification label of the data file, so as to form the metadata management structure of the data file.
Specifically, the construction of the metadata management structure of the database is described, for example, by packaging the metadata in a manner of a "sink" (an open-source database connection tool) connection pool in ali, and obtaining a connection of the database by security of authority control. For example, if there is a user order system, after the system is connected with the database corresponding to the system, the system automatically scans the whole database to obtain each database, each table, each field information to form basic metadata, and then classifies and sorts the basic metadata, such as user basic information, shopping information, performance information, and the like, so that the information of the whole database can be visually seen, and then the information can be used for assembling the multi-function data processing of the system and the customized query of multi-condition data brushing.
The metadata management structure for the data interface is generally classified into 2 types, one type is that the third-party data interface is connected with the system, and the second type is that the data interface is connected with other third-party systems.
Preferably, the step of constructing the metadata management structure of the data interface includes a third-party data interface to be docked and a third-party data interface to be docked with the self-party; wherein,
the step of constructing the data management structure of the third-party data interface to be docked comprises the following steps: according to the security key and the interface information of the data interface to be butted, carrying out configuration authorization on the data interface to be butted, and providing the online dynamic interface document as second metadata after authorization to form a metadata management structure of the data interface;
and directly providing the online dynamic interface document as second metadata for a third-party data interface to be in butt joint with the local party so as to form a metadata management structure of the data interface.
Specific examples thereof include: firstly, safety insurance companies need to acquire the information of a certain person to evaluate the insurance information of the person. The security company needs to interface with the interface of the medical insurance unit where the person is located, and acquire the insurance participation information of the person through the interface. Our system acts as a docking procedure for the medical insurance unit. Under the above background, the system configures basic information and security keys of a security company, then performs configuration authorization for interfaces required by the security company, and after authorization, provides an online dynamic interface document, where the document can show specific docking parameters and formats, and interface sources (a custom query established in the system is an interface data source). The data generated in this process is the second metadata of the data interface.
Under the background based on the point of (i), a medical insurance unit also wants to record whether a participant purchases a safe business risk, then the system needs to interface with a safe company, the system provides an interfaced dynamic interface document as second metadata, the safe company realizes the interface, then executes the execution frequency of a timing task scheduling interface, and stores corresponding data into a database.
For example, there is a file server in which all data file information of a company is stored, and in our system, only a machine and a certain recording path in the machine need to be designated, the whole directory is automatically scanned, and all data file information and file directories are sorted, such as personnel certificate information, merchant certificate information, and the like. A search for a certain file or directory can then be performed. The data produced by this process is the corresponding third metadata of the data file.
Step S2, sorting the first metadata, the second metadata, and the third metadata in the metadata management structure according to a preset classification rule to obtain a query directory.
When the query catalog is formed, after various metadata are formed, classification can be carried out, cataloguing can be carried out after classification, and the data owned by the whole system can be clear at a glance after cataloguing.
Step S3, constructing a metadata query condition and a metadata function for the query catalog.
Preferably, the metadata query condition includes a filtering condition and a matching condition. Specifically, the filtering condition may be a range of horizontal swipes, i.e. dimensions, which define that the queried data can only be some data types. For example, the data includes information of students of small, first, high and college schools, and if it is desired to count the total information of the students of the primary school and the middle school, the two are the screening conditions of the horizontal dimension. The matching condition may be a further match, and may be a method that may generate structured data of the query condition for time intervals, code tables, text, custom components. For example, the content of the query contains a name, a query text money is established and bound to the name, and the operator is fuzzy matching; for another example, the query content is a code table of male and female. Then a drop-down box is established, bound to the gender metadata; another example is querying that there are components: all the drug store sets are one component, a certain drug store can be selected directly through component brushing, and then the drug store is led to the drug store for code element data matching.
Preferably, the metadata function includes a function that performs secondary processing on the metadata. In particular, the metadata function is typically for a particular service. For example: inquiring the medicine purchasing information. But the unit price can not show the original unit price in the system, so that the embarrassment of the original unit price seen by a medicine purchasing person is avoided, a certain rate such as 20% of price adjustment is required, a function can be configured for the metadata, the method is marked as the price adjustment function through annotation and is bound to the metadata, the price adjustment function can be automatically operated when the metadata is inquired and used, and the obtained data is the price data which is 20% higher.
Step S4, responding the initiated query requirement, determining the metadata query condition and the metadata function corresponding to the query requirement, calling the corresponding metadata query condition and the metadata function, and querying the corresponding query result in the query directory;
step S5, reading corresponding first metadata, second metadata, or third metadata according to the query result, and analyzing the structured data (i.e., the corresponding first metadata, second metadata, or third metadata) to generate a corresponding presentation result.
Specific examples thereof include: there is now a need to make information queries for a certain pharmacy.
The first step is to look up and develop the catalog of the drug store in the catalog, if the subordinate has the catalog of the certificate information of the drug store, the interface information of the drug store, the medicine purchasing information of the drug store and the inventory information of the drug store.
Secondly, configuring a database, a data interface and a metadata management structure of the data file; the metadata management structure (pharmacy certificate) of the database can drill into the certificate category (certificate cataloging information is used) to obtain a corresponding certificate information picture for previewing; the metadata management structure of the data interface, namely a medicine purchasing interface, is configured to drill into a pharmacy interface catalog, and interface documents are displayed; the metadata management structure of the same data file may present a list of medication purchase information and inventory information.
And thirdly, configuring a self-defined query function after configuring the metadata management structure of the database, the data interface and the data file.
In the technical scheme of the invention, the user-defined query method based on metadata multi-function and multi-condition is realized by constructing a metadata management structure based on a database, a data interface and a data file; sorting the first metadata, the second metadata and the third metadata in the metadata management structure according to a preset classification rule to obtain a query directory; constructing a metadata query condition and a metadata function aiming at the query catalog; responding to the initiated query requirement, determining a metadata query condition and a metadata function corresponding to the query requirement, calling the corresponding metadata query condition and the corresponding metadata function, and querying a corresponding query result in the query directory; and reading corresponding first metadata, second metadata or third metadata according to the query result, and analyzing the structured data to generate a corresponding presentation result. The invention acquires executable structured data by a dynamically configured parameter, function and hierarchy authority forming method based on memory operation and data flow processing, stores the executable structured data in a memory and a disk forming template, calculates the structured data in the memory, matches with a data acquisition channel, and performs multi-function operation processing on the acquired data result after acquiring the data through multiple conditions, so that the data is presented flexibly. In addition, a complex multi-function multi-condition hierarchical authority control metadata custom query and complex result display method meets the requirement of zero-code development query data, reduces cost, improves efficiency, and provides good use experience for frequent modification after templating.
Referring to fig. 2, the present invention further provides a metadata multi-function multi-condition based custom query system or a computer system 10 running the metadata multi-function multi-condition based custom query method, including a memory 51, a processor 52, and a computer program 53 stored in the memory 51 and running on the processor 52, wherein the processor 52 implements the steps of the metadata multi-function multi-condition based custom query method as described in any one of the above items when executing the computer program 53.
The present invention also provides a computer readable storage medium, which stores a computer program, when the computer program is executed by a processor, the computer program implements the steps of the metadata multi-function multi-condition custom query method as described in any one of the above.
That is, in the embodiment of the present invention, when the computer program of the computer readable storage medium is executed by the processor, the steps of the above-mentioned metadata multi-function multi-condition custom query method are implemented, and all the advantages of the metadata multi-function multi-condition custom query method can be also implemented.
Illustratively, the computer program of the computer-readable storage medium comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, and the like. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like.
In the description herein, references to the description of the term "an embodiment," "another embodiment," "other embodiments," or "first through Xth embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, method steps, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.
Claims (6)
1. A self-defined query method based on metadata multi-function and multi-condition is characterized by comprising the following steps:
step S1, a metadata management structure based on the database, the data interface and the data file is constructed, wherein,
the method comprises the steps of constructing a metadata management structure of a database, scanning the database, acquiring all library, table and field information in the database to form basic metadata, identifying a classification label corresponding to the basic metadata to obtain first metadata comprising the basic metadata and the classification label thereof, and constructing the metadata management structure of the database;
the construction step of the metadata management structure of the data interface comprises the steps of providing an online dynamic interface document as second metadata to form the metadata management structure of the data interface;
the method comprises the steps of constructing a metadata management structure of a data file, wherein the step of constructing the metadata management structure of the data file comprises identifying classification tags corresponding to the data file and a storage directory so as to obtain third metadata comprising the storage directory and the classification tags of the data file, and the third metadata is used for forming the metadata management structure of the data file;
step S2, arranging the first metadata, the second metadata and the third metadata in the metadata management structure according to a preset classification rule to obtain a query directory;
step S3, constructing a metadata query condition and a metadata function aiming at the query catalog;
step S4, responding the initiated query requirement, determining the metadata query condition and the metadata function corresponding to the query requirement, calling the corresponding metadata query condition and the metadata function, and querying the corresponding query result in the query directory;
step S5, reading corresponding first metadata, second metadata, or third metadata according to the query result, and analyzing the corresponding first metadata, second metadata, or third metadata to generate a corresponding presentation result.
2. The multi-function and multi-condition self-defined query method based on metadata, according to claim 1, wherein the step of constructing the metadata management structure of the data interface comprises the steps of constructing a third-party data interface to be connected and a third-party data interface to be connected with the data interface; wherein,
the step of constructing the data management structure of the third-party data interface to be docked comprises the following steps: according to the security key and the interface information of the data interface to be butted, carrying out configuration authorization on the data interface to be butted, and providing the online dynamic interface document as second metadata after authorization to form a metadata management structure of the data interface;
and directly providing the online dynamic interface document as second metadata for a third-party data interface to be in butt joint with the local party so as to form a metadata management structure of the data interface.
3. The method according to claim 1, wherein the metadata query conditions include a filtering condition and a matching condition.
4. The multi-function and multi-condition custom query method based on metadata, according to claim 1, characterized in that said metadata function comprises a function of quadratic processing on said metadata.
5. A system for customized query based on metadata multi-function multi-condition, comprising a memory, a processor, a computer program stored in the memory and operable on the processor, and a controller for receiving instructions of the processor, wherein the processor, when executing the computer program, implements the steps of the method for customized query based on metadata multi-function multi-condition as recited in any one of claims 1 to 4.
6. A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of the metadata-based multi-function multi-condition custom query method according to any one of claims 1 to 4.
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