CN110955711A - Search method and device capable of dynamic expansion - Google Patents
Search method and device capable of dynamic expansion Download PDFInfo
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- CN110955711A CN110955711A CN201911173847.9A CN201911173847A CN110955711A CN 110955711 A CN110955711 A CN 110955711A CN 201911173847 A CN201911173847 A CN 201911173847A CN 110955711 A CN110955711 A CN 110955711A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
- G06F16/252—Integrating or interfacing systems involving database management systems between a Database Management System and a front-end application
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Abstract
The invention provides a retrieval method and a retrieval device capable of dynamic expansion, which comprises the steps of constructing dynamic expandable attributes, constructing service data, acquiring search conditions for the attributes to be searched and corresponding attribute value types, and storing the search conditions into search condition conditions; and finally judging whether the searching mode is an and mode or an or mode, and carrying out retrieval operation according to the operation of the attribute value field typeValue of the service data and the searching condition, wherein the searching mode and means that the attribute value can only be selected singly during selection, and the searching mode or means that the attribute value is selected more than once during selection. The present invention utilizes 2n(n>A positive integer of 1) and 2m(m>1 positive integer) to realize that the attribute and the attribute value can be dynamically increased along with the change of the service, and only one field is needed to store all the attribute values, and the storage structure cannot be changed due to the change of the service.
Description
Technical Field
The invention relates to the field of data retrieval, in particular to a retrieval method and a retrieval device capable of dynamically expanding search attributes and attribute values.
Background
In an enterprise application and management system, an attribute-specific search is a common retrieval method, and first, attributes of data to be searched are defined, and attribute values of the attributes are defined below the search attributes, for example: an article has multiple attributes, colors, sizes, places of origin, etc., each of which has several values, sizes being s, m, x, xl, xxl, etc.
When generating service data, each attribute is required to be used as a field of the service data, and the attribute value under the attribute is stored in the corresponding field, so that screening can be performed according to different attributes during searching. For example: the object is used as business data, 3 fields of color (color), size (size) and source (source) need to be created, and the values red, xxl and Shanghai corresponding to the color, the size and the source are respectively stored in a database.
Fig. 1 exemplarily shows an example of multi-attribute retrieval in the prior art, and the retrieval process includes: the first step is as follows: the search attribute and the attribute value are defined according to the service scenario, and the search attribute and the attribute value in different service scenarios are different, for example: the attribute is size, and the attribute values are s, m, x, xl and xxl; the attribute is color, and the attribute values are red, blue, green and white; the second step is that: adding an attribute field for the service data; the third step: generating service data, and adding the selected attribute value to a specific field (s 003); the fourth step: searching data, and performing accurate search according to condition fields, for example: when data of size s and color red is to be searched, the condition is size's' and color 'red'.
However, in the actual application process, if the property of the origin needs to be dynamically increased due to the service requirement, new properties and property values need to be redefined in the first step; in the second step, adding new fields for the service table; re-entering the selected attribute values into the fields in a third step; in the fourth step, the query condition needs to be modified, the process is complex, and the dynamic expansion is poor.
Disclosure of Invention
The invention aims to provide a retrieval method capable of being dynamically expanded, which realizes the definition of different search attributes according to different users in a service scene with customized search attributes, and simultaneously has the function of dynamically increasing the attributes to complete multi-condition search.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a dynamically expandable retrieval method comprises the following steps:
establishing a dynamic extensible attribute, wherein the dynamic extensible attribute comprises an attribute table and an attribute value table, and a custom attribute and an attribute value are newly established, the attribute table is set to store basic attributes, and the attribute value table is used for storing optional values under the basic attributes;
constructing service data, selecting a specific attribute value type for the service data, then processing the attribute value type, and assigning a processing result to an attribute value type value of the service data, wherein the type represents a custom-created attribute value, and the type value represents an attribute value of the service data;
acquiring a search condition, processing the attribute value type of the attribute to be searched, and assigning a result to the condition; and
and judging whether the search mode is an and mode or an or mode, and performing retrieval operation according to the operation of the attribute value typeValue of the service data and the search condition, wherein the search mode and means that the attribute value can be selected only singly during selection, and the search mode or means that the attribute value is selected more than once during selection.
Preferably, in the operation of constructing the dynamically extensible attribute, there is a many-to-one relationship between the attribute value table and the attribute table.
Preferably, in the operation of constructing the dynamically extensible attribute, in the process of creating the new custom attribute and the attribute value, dynamic addition of a plurality of attributes and attribute values is supported, wherein when the attribute value is created, the attribute value satisfies the following conditions: the attribute value is a positive integer, and the initially created attribute value is 1; subsequently created attribute values are sequentially incremented by 1.
Preferably, in the operation of constructing service data, the processing of the selected attribute value type includes:
and circularly performing 2n operation on the attribute value type, accumulating the calculation result, and finally assigning the accumulated result to a service data attribute value type, wherein the value of n is the attribute value type.
Preferably, the acquiring the search condition includes the following operations:
circularly performing 2n operation on the attribute value type to be searched, accumulating the calculation result, and finally assigning the accumulated result to the search condition; wherein the value of n is the attribute value type.
Preferably, the aforementioned retrieving operation includes the following operations:
1. if the searching mode is "and", performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is equal to the condition, determining that the operation result is data meeting the condition
2. And if the searching mode is or, performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is greater than 0, determining that the data meets the condition.
According to the present invention, there is also provided a dynamically expandable search apparatus, comprising:
the module used for constructing the dynamic extensible attribute comprises a module used for creating an attribute table, a module used for creating an attribute value table and a module used for creating a new custom attribute and an attribute value, wherein the attribute table is set to store basic attributes, and the attribute value table is used for storing selectable values under the basic attributes;
the module is used for constructing the business data and is set to select a specific attribute value type for the business data, then the attribute value type is processed, and a processing result is assigned to an attribute value type value of the business data, wherein the type represents the custom-created attribute value, and the type value represents the attribute value of the business data;
a module for obtaining a search condition, processing the attribute value type of the attribute to be searched, and assigning the result to the condition of the search; and
and the module is used for judging whether the search mode is an and mode or an or mode and carrying out retrieval operation according to the operation of the attribute value typeValue of the service data and the search condition, wherein the search mode and means that the attribute value can be only selected singly during selection, and the search mode or means that the attribute value is selected more than once during selection.
Preferably, the module for constructing service data includes a processing module for processing the selected attribute value type, and is configured to:
and circularly performing 2n operation on the attribute value type, accumulating the calculation result, and finally assigning the accumulated result to a service data attribute value type, wherein the value of n is the attribute value type.
Preferably, the aforementioned acquiring the search condition includes the following operations:
circularly performing 2n operation on the attribute value type to be searched, accumulating the calculation result, and finally assigning the accumulated result to the search condition; wherein the value of n is the attribute value type.
Preferably, the aforementioned retrieving operation includes the following operations:
1. if the searching mode is "and", performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is equal to the condition, determining that the operation result is data meeting the condition
2. If the search mode is or, AND-operation is performed on the attribute value typeValue of the service data and the search condition, and if the operation result is greater than 0, the data meets the condition
The technical scheme of the invention can realize the definition of different search attributes according to different users in a service scene with customized search attributes, and simultaneously has the functions of dynamically increasing the attributes and completing multi-condition search.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the presently disclosed subject matter.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a diagram illustrating a multi-condition search in the prior art.
FIG. 2 is an example of building dynamic extensible properties in the dynamically extensible search method of the present invention.
Fig. 3 is an example of constructing service data in the dynamically extensible retrieval method of the present invention.
Fig. 4 is an example of a retrieval process in the dynamically extensible retrieval method of the present invention.
FIG. 5 is an example of an attribute structure table of the present invention.
Fig. 6 is an example of an attribute value table structure of the present invention.
FIG. 7 is an example of an attribute and attribute value creation process of the present invention.
FIG. 8 is an exemplary illustration of the presentation effect after the creation of the attribute and the attribute value of the present invention is completed.
Fig. 9 is a presentation example of selecting an attribute effect when adding service data according to the present invention.
Fig. 10 is an attribute value single selection mode search example of the present invention.
Fig. 11 is an attribute value reproduction mode search example of the present invention.
Fig. 12 is an exemplary service data new attribute of the present invention.
FIG. 13 is a business scenario and business data example of the present invention.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any one implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
The invention aims to provide a retrieval method capable of dynamically expanding search attributes and attribute values, and utilizes 2n(n>A positive integer of 1) and 2m(m>1 positive integer), the attribute and the attribute value can be dynamically increased along with the change of the service, and simultaneously, when the attribute value of the service data is stored, only one field is needed to store all the attribute values, and the storage structure cannot be changed due to the change of the service.
Referring to fig. 2-4, a method for retrieving dynamically expandable search attributes and attribute values according to an embodiment of the present invention includes the following steps:
establishing a dynamic extensible attribute, wherein the dynamic extensible attribute comprises an attribute table and an attribute value table, and a custom attribute and an attribute value are newly established, the attribute table is set to store basic attributes, and the attribute value table is used for storing optional values under the basic attributes;
constructing service data, selecting a specific attribute value type for the service data, then processing the attribute value type, and assigning a processing result to an attribute value type value of the service data, wherein the type represents a custom-created attribute value, and the type value represents an attribute value of the service data;
acquiring a search condition, processing the attribute value type of the attribute to be searched, and assigning a result to the condition; and
and judging whether the search mode is an and mode or an or mode, and performing retrieval operation according to the operation of the attribute value typeValue of the service data and the search condition, wherein the search mode and means that the attribute value can be selected only singly during selection, and the search mode or means that the attribute value is selected more than once during selection.
Preferably, in the operation of constructing the dynamically extensible attribute, there is a many-to-one relationship between the attribute value table and the attribute table.
Preferably, in the operation of constructing the dynamically extensible attribute, in the process of creating the new custom attribute and the attribute value, dynamic addition of a plurality of attributes and attribute values is supported, wherein when the attribute value is created, the attribute value satisfies the following conditions: the attribute value is a positive integer, and the initially created attribute value is 1; subsequently created attribute values are sequentially incremented by 1.
Preferably, in the operation of constructing service data, the processing of the selected attribute value type includes:
and circularly performing 2n operation on the attribute value type, accumulating the calculation result, and finally assigning the accumulated result to a service data attribute value type, wherein the value of n is the attribute value type.
I.e., type value +2 type.
Preferably, the acquiring the search condition includes the following operations:
circularly performing 2n operation on the attribute value type to be searched, accumulating the calculation result, and finally assigning the accumulated result to the search condition; wherein the value of n is the attribute value type.
Namely, condition +2 type.
Preferably, the aforementioned retrieving operation includes the following operations:
1. if the searching mode is "and", performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is equal to the condition, determining that the operation result is data meeting the condition
2. And if the searching mode is or, performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is greater than 0, determining that the data meets the condition.
In the actual operation and application process, the following specific implementation can be adopted:
if the search mode is and, filtering the service data according to the following formula (wherein & is and operator): condition & typeValue ═ condition;
if the search mode is or, the service data is filtered according to the following formula (wherein & is and operator): condition & typeValue > 0.
Therefore, different search attributes can be defined according to different users in a service scene with customized search attributes, and the function of dynamically increasing the attributes and completing multi-condition search is also achieved.
The implementation of the aforementioned method is described in more detail below with reference to the figures.
The first part constructs dynamically extensible attributes, as shown in fig. 5, 6, 7, and 8, and the specific operations include:
the first step is as follows: creating an attribute table structure, wherein the attribute table is used for storing self-defined attributes;
the second step is that: creating an attribute value table structure, wherein the attribute value table is used for storing selectable values under the self-defined attribute and belongs to a many-to-one relationship with the attribute table;
the third step: newly establishing a custom attribute and an attribute value, dynamically increasing a plurality of attributes, displaying the data after completing the new establishment in P _004, and when the attribute value is established, the attribute value must meet the following conditions: the attribute value is a positive integer, and the initially created attribute value is 1; subsequently created attribute values are sequentially incremented by 1. For example: the first attribute value type is 1, the second attribute value type is 2, the third attribute value type is 3, and so on.
The second part constructs service data, and as shown in fig. 9, the specific operations include:
the first step is as follows: adding a field typeValue for the service data, wherein the field typeValue is used for storing the selected attribute value;
the second step is that: adding service data and selecting an attribute value;
the third step: calculating the selected attribute value according to a specified calculation rule, and storing the result into type value, wherein the calculation rule for all attribute value types is as follows:
for type in typeList:
typeValue＝typeValue+2type。
the third part of data retrieval is combined with fig. 10-13, and the specific operations include:
the first step is as follows: selecting the attribute to be searched, calculating the attribute value type below the attribute according to the following rule, and storing the attribute in the condition:
for type in typeList:
condition＝condition+2type；
the second step is that: judging whether the search mode is an and mode or an or mode, wherein the search mode and means that: the attribute value can be selected only singly in the selection process, namely P _ 006; the search mode or is as follows: the attribute value is multiple choice at the time of selection, see P _ 007.
1. If the search mode is and, filtering the service data according to the following formula (wherein & is and operator): condition & typeValue ═ condition;
2. if the search mode is or, the service data is filtered according to the following formula (wherein & is and operator): condition & typeValue > 0;
the following description will be given taking device management as an example.
The equipment has an attribute company and a model, wherein the company attribute has 2 attribute values of small view and middle shift, the model attribute has 3 attribute values of MS-300, MS-500 and MG-300, when the attribute and the attribute values are newly established, the small view (attribute value name) value of the attribute company is 1, the middle shift (attribute value name) value of the attribute company is 2, the MS-300 (attribute value name) value of the attribute model is 3, the MS-500 (attribute value name) value of the attribute model is 4 and the MG-300 (attribute value name) value of the attribute model is 5.
Creating device a (business data), opening attributes, selecting (singulating) specific attribute values, such as: the company selects a small view, the model selects MS-500, and the attribute value of the device is 21+ 24-18 according to the calculation rule of the service data attribute value. And creating a device B, selecting a middle station by the company, selecting the MS-500 by the model, and obtaining the device attribute value of 22+ 24-20.
Searching for devices, opening attributes, selecting (singulating) specific attribute values, such as: the searching company is a small-looking device with the model number of MS-500, calculates a rule according to the searching condition to obtain a value of 21+24 ═ 18, and then performs filtering according to the filtering rule, wherein the a device meets the condition (18&18 ═ 18) and the B device does not meet the condition (20& 18! ═ 18).
The following steps are repeated: the device whose model is MS-500 is searched, the value of the search condition is 24-16, filtering is performed according to the filtering rule, and both the a device (18& 16-16) and the B device (20& 16-16) meet the condition.
The following steps are repeated: the searching company is a device with small view or a device with medium movement, the value of the searching condition is 21+22 to 6, filtering is carried out according to the filtering rule, and the device A (18&6>0) and the device B (20&6>0) both meet the condition.
Further embodiments of the invention, in combination with the illustration, may also be configured as follows in accordance with the foregoing embodiments:
a dynamically expandable retrieval device, comprising:
the module used for constructing the dynamic extensible attribute comprises a module used for creating an attribute table, a module used for creating an attribute value table and a module used for creating a new custom attribute and an attribute value, wherein the attribute table is set to store basic attributes, and the attribute value table is used for storing selectable values under the basic attributes;
the module is used for constructing the business data and is set to select a specific attribute value type for the business data, then the attribute value type is processed, and a processing result is assigned to an attribute value type value of the business data, wherein the type represents the custom-created attribute value, and the type value represents the attribute value of the business data;
a module for obtaining a search condition, processing the attribute value type of the attribute to be searched, and assigning the result to the condition of the search; and
and the module is used for judging whether the search mode is an and mode or an or mode and carrying out retrieval operation according to the operation of the attribute value typeValue of the service data and the search condition, wherein the search mode and means that the attribute value can be only selected singly during selection, and the search mode or means that the attribute value is selected more than once during selection.
Preferably, the module for constructing service data includes a processing module for processing the selected attribute value type, and is configured to:
and circularly performing 2n operation on the attribute value type, accumulating the calculation result, and finally assigning the accumulated result to a service data attribute value type, wherein the value of n is the attribute value type.
Preferably, the aforementioned acquiring the search condition includes the following operations:
circularly performing 2n operation on the attribute value type to be searched, accumulating the calculation result, and finally assigning the accumulated result to the search condition; wherein the value of n is the attribute value type.
Preferably, the aforementioned retrieving operation includes the following operations:
1. if the searching mode is "and", performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is equal to the condition, determining that the operation result is data meeting the condition
2. And if the searching mode is or, performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is greater than 0, determining that the data meets the condition.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (10)
1. A dynamically extensible search method, comprising:
establishing a dynamic extensible attribute, wherein the dynamic extensible attribute comprises an attribute table and an attribute value table, and a custom attribute and an attribute value are newly established, the attribute table is set to store basic attributes, and the attribute value table is used for storing optional values under the basic attributes;
constructing service data, selecting a specific attribute value type for the service data, then processing the attribute value type, and assigning a processing result to an attribute value type value of the service data, wherein the type represents a custom-created attribute value, and the type value represents an attribute value of the service data;
acquiring a search condition, processing the attribute value type of the attribute to be searched, and assigning a result to the condition; and
and judging whether the search mode is an and mode or an or mode, and performing retrieval operation according to the operation of the attribute value typeValue of the service data and the search condition, wherein the search mode and means that the attribute value can be selected only singly during selection, and the search mode or means that the attribute value is selected more than once during selection.
2. The dynamically extensible search method according to claim 1, wherein in the operation of constructing the dynamically extensible attribute, a many-to-one relationship exists between the attribute value table and the attribute table.
3. The dynamically extensible search method according to claim 1 or 2, wherein in the operation of constructing the dynamically extensible attribute, during the process of creating the new custom attribute and the attribute value, dynamic addition of a plurality of attributes and attribute values is supported, wherein when the attribute value is created, the attribute value satisfies: the attribute value is a positive integer, and the initially created attribute value is 1; subsequently created attribute values are sequentially incremented by 1.
4. The dynamically extensible retrieval method according to claim 3, wherein in the operation of constructing the business data, the processing of the selected attribute value type comprises:
and circularly performing 2n operation on the attribute value type, accumulating the calculation result, and finally assigning the accumulated result to a service data attribute value type, wherein the value of n is the attribute value type.
5. The dynamically expandable retrieval method of claim 3, wherein the obtaining of the search criteria comprises:
circularly performing 2n operation on the attribute value type to be searched, accumulating the calculation result, and finally assigning the accumulated result to the search condition; wherein the value of n is the attribute value type.
6. A dynamically expandable search method as claimed in claim 3, wherein the search operation comprises the following operations:
1. if the searching mode is "and", performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is equal to the condition, determining that the operation result is data meeting the condition
2. And if the searching mode is or, performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is greater than 0, determining that the data meets the condition.
7. A dynamically expandable retrieval device, comprising:
the module used for constructing the dynamic extensible attribute comprises a module used for creating an attribute table, a module used for creating an attribute value table and a module used for creating a new custom attribute and an attribute value, wherein the attribute table is set to store basic attributes, and the attribute value table is used for storing selectable values under the basic attributes;
the module is used for constructing the business data and is set to select a specific attribute value type for the business data, then the attribute value type is processed, and a processing result is assigned to an attribute value type value of the business data, wherein the type represents the custom-created attribute value, and the type value represents the attribute value of the business data;
a module for obtaining a search condition, processing the attribute value type of the attribute to be searched, and assigning the result to the condition of the search; and
and the module is used for judging whether the search mode is an and mode or an or mode and carrying out retrieval operation according to the operation of the attribute value typeValue of the service data and the search condition, wherein the search mode and means that the attribute value can be only selected singly during selection, and the search mode or means that the attribute value is selected more than once during selection.
8. The dynamically extensible retrieving apparatus according to claim 7, wherein the module for constructing service data comprises a processing module for processing the selected attribute value type, and is configured to:
and circularly performing 2n operation on the attribute value type, accumulating the calculation result, and finally assigning the accumulated result to a service data attribute value type, wherein the value of n is the attribute value type.
9. The dynamically expandable retrieval device of claim 7, wherein the aforementioned obtaining of the search criteria comprises the following operations:
circularly performing 2n operation on the attribute value type to be searched, accumulating the calculation result, and finally assigning the accumulated result to the search condition; wherein the value of n is the attribute value type.
10. A dynamically expandable retrieval device according to claim 7, 8 or 9, wherein the retrieval operation comprises the following operations:
1. if the searching mode is "and", performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is equal to the condition, determining that the operation result is data meeting the condition
2. And if the searching mode is or, performing AND operation on the attribute value typeValue of the service data and the searching condition, and if the operation result is greater than 0, determining that the data meets the condition.
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Application publication date: 20200403 |