CN104346466B - The method and apparatus for the data that Added New Attribute in database - Google Patents
The method and apparatus for the data that Added New Attribute in database Download PDFInfo
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- CN104346466B CN104346466B CN201410645814.0A CN201410645814A CN104346466B CN 104346466 B CN104346466 B CN 104346466B CN 201410645814 A CN201410645814 A CN 201410645814A CN 104346466 B CN104346466 B CN 104346466B
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Abstract
The method and apparatus that the present invention discloses the data that Added New Attribute in a kind of database.Methods described includes：Message is obtained, the message includes the request for the data that Add New Attribute；Analytic message, the new attribute data is resolved to the attribute of MappedClob data type objects；The MappedClob data types object is converted into expandable mark language XML form, establishes expandable mark language XML text, the new attribute data is stored in the expandable mark language XML text；The expandable mark language XML text is stored into the database position that reserved field describes in corresponding data entity.Using technical scheme provided by the invention, the problem of can avoiding that new attribute data is added into the database table structure confusion easily brought in database in the prior art.
Description
Technical field
The present invention relates to the method and dress for the data that Added New Attribute in software technology field, more particularly to a kind of database
Put.
Background technology
Database is core and the basis of information system, and an outstanding database is designed in an information system largely
Data get up according to the principle organic organization of data model, there is provided storage, safeguard, retrieval data function, make information system
It can facilitate, obtain required information from database accurately and in time.Database design must meet unified data standard,
And forward-looking property autgmentability considers, the various change that Future Services Development is brought is adapted to.Whether outstanding database design is
It is one of whole Success of Information System whether most critical factor.
Traditional database design is often based on business demand drive pattern using top-down, and database is set
Meter lacks integrity design and considered.The table structure of database is based entirely on demand analysis Outline Design.Set based on this
Perhaps, meter pattern disclosure satisfy that current business model, also system can be made smoothly to reach the standard grade on schedule.A but big-and-middle-sized information
System will not terminate because once successfully reaching the standard grade, and conversely business personnel can constantly be proposed newly based on this system after reaching the standard grade
Business demand, i.e., can be to the data that Added New Attribute in database, and this can constantly bring the new demand that database table structure adjusts.
But Added New Attribute in current technology, in database data when, the adjustment of database table structure is easily brought
The problem of database table structure confusion, so as to easily cause creation data to be lost, cause serious consequence.
The content of the invention
In view of this, the invention provides a kind of method and apparatus for the data that Added New Attribute in database, to avoid
The problem of new attribute data is added to the database table structure confusion easily brought in database in the prior art, and then can
The problem of avoiding easily causing creation data to be lost in the prior art.
To achieve the above object, the present invention provides following technical scheme：
A kind of method for the data that Added New Attribute in database, including：
Message is obtained, the message includes the request for the data that Add New Attribute；
Analytic message, the new attribute data is resolved to the attribute of MappedClob data type objects；
The MappedClob data types object is converted into expandable mark language XML form, establishes expansible mark
Remember Language XML text, the new attribute data is stored in the expandable mark language XML text；
The expandable mark language XML text is stored into the database reserved field in corresponding data entity
The position of description.
Preferably, the message is obtained from message interface.
Preferably, the MappedClob is the Java data corresponding with database character blob CLOB data types
Type.
Preferably, before the acquisition message, in addition to：
The reserved field description is added in having the data entity for increasing the new attribute data demand；It is described pre-
Segment description of writeeing down characters is character blob CLOB data type attributes.
Preferably, the method for calling asXML functions, expansible mark is converted to by the MappedClob data types object
Remember Language XML form.
Preferably, the new attribute data is stored in by way of defining label in expandable mark language XML text,
The mode for defining label includes：The title and data type of label are defined, and is the label assignment.
Preferably, the reserved field is described as character blob CLOB data type attributes.
Preferably, by calling Ibatis data access layer operations, by the expandable mark language XML text store to
The position that reserved field describes in corresponding data entity in the database.
A kind of device for the data that Added New Attribute in database, including：
Receive message unit, for obtaining message, the message includes the request for the data that Add New Attribute；
Packet parsing unit, for analytic message, the new attribute data is resolved into MappedClob data types pair
The attribute of elephant；
New attribute data memory cell, for the MappedClob data types object to be converted into extensible markup language
XML format is sayed, establishes expandable mark language XML text, the new attribute data is stored in the expandable mark language XML
In text；
Expandable mark language XML text memory cell, for the expandable mark language XML text to be stored to institute
State the position that reserved field describes in corresponding data entity in database.
Preferably, in addition to:
Unit is established in reserved field description, for adding in having the data entity for increasing the new attribute data demand
The reserved field is added to describe；The reserved field is described as character blob CLOB data type attributes.
Understood via above-mentioned technical scheme, it is compared with prior art, new the invention provides being added in a kind of database
The method and apparatus of attribute data.Using the method and apparatus for the data that Added New Attribute in database provided by the invention, when obtaining
After getting the message including the request of data that Adds New Attribute, analytic message, the new attribute data is resolved into MappedClob
The attribute of data type object, the MappedClob data types object is then converted into expandable mark language XML lattice
Formula, expandable mark language XML text is established, the new attribute data is stored in the expandable mark language XML text
In, finally, the expandable mark language XML text of the new attribute data will be stored with, be stored in database corresponding
Data entity in reserved field description position, new attribute data is added in database so as to realize.The present invention provides
Technical scheme, new attribute data is added in database the position that reserved field in corresponding data entity describes, it is not necessary to
The structure of data entity in database (including tables of data) is modified, so as to avoid new attribute number in the prior art
The problem of database table structure confusion easily brought in database according to being added to, and then can avoid easily leading in the prior art
The problem of causing creation data to lose, face to provide safeguard during Added Business demand for follow-up system, guarantee information system with
The security of database.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 be a kind of database provided in an embodiment of the present invention in Add New Attribute data method flow chart；
Fig. 2 be another database provided in an embodiment of the present invention in Add New Attribute data method flow chart；
Fig. 3 be a kind of database provided in an embodiment of the present invention in Add New Attribute data device structure chart；
Fig. 4 be another database provided in an embodiment of the present invention in Add New Attribute data device structure chart.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Embodiment one
Referring to Fig. 1, streams of the Fig. 1 for the method for the data that Added New Attribute in a kind of database provided in an embodiment of the present invention
Cheng Tu.As shown in figure 1, this method includes：
Step S101, obtains message, and the message includes the request for the data that Add New Attribute；
Specifically, obtaining the message from message interface, the message includes the request for the data that Add New Attribute, in the request
Include the information of new attribute data.
Step S102, analytic message, the new attribute data is resolved to the attributes of MappedClob data type objects；
Specifically, the MappedClob is that (Character Large Object, character are right greatly with the CLOB of database
As) the corresponding Java data types of data type.CLOB data types are a kind of database datatypes, larger for storing
Text.
Step S103, the MappedClob data types object is converted into XML (Extensible Markup
Language, extensible markup language) form, XML texts are established, the new attribute data is stored in the XML texts；
Specifically, it is optional, the method for calling asXML functions, the MappedClob data types object is converted to
Expandable mark language XML form.MappedClob data objects are turned specifically, asXML functions are that the present invention is customized
It is changed to the function of XML texts.
Specifically, the new attribute data is stored in by way of defining label in expandable mark language XML text,
The mode for defining label includes：The title and data type of label are defined, and is the label assignment.The type of label,
Optionally, including numeral, character and date three types.Example is as follows：
Label tag1 is character types in this example, storage character string " hello world "；Label tag2 is numeric class
Type, storage numeral 87832.323；Label tag3 is date type, stores date 2013-03-2912:44:32.
Step S104, the expandable mark language XML text is stored into the database corresponding data entity
The position of interior reserved field description；
Specifically, the reserved field is described as the CLOB data type attributes of database, data are real in database
In vivo.Optionally, by calling Ibatis data access layer operations, the XML texts are stored into the database accordingly
Data entity in reserved field description position.The words of Ibatis mono- derive from the combination of " internet " and " abatis ", are
Open source code project, also referred to as MyBatis, it is one and is based on SQL (Structured Query Language, structuralized query
Language) map the Persistence Layer Framework for supporting Java.
The technical scheme that the embodiment of the present invention one provides, after the message including the request of data that Adds New Attribute is got,
Analytic message, the new attribute data is resolved to the attribute of MappedClob data type objects, then by described in
MappedClob data type objects are converted to expandable mark language XML form, establish expandable mark language XML text,
The new attribute data is stored in the expandable mark language XML text, finally, the new attribute data will be stored with
The expandable mark language XML text, be stored in database the position that reserved field in corresponding data entity describes,
New attribute data is added in database so as to realize.The technical scheme that the embodiment of the present invention one provides, by new attribute data
Be added in database the position that reserved field in corresponding data entity describes, it is not necessary to data entity in database (including
Tables of data) structure be modified, so as to avoid that new attribute data is added into easy band in database in the prior art
The problem of database table structure confusion come, and then the problem of can avoid easily causing creation data to be lost in the prior art,
Provided safeguard when facing Added Business demand for follow-up system, the security of guarantee information system and database.
It should be noted that implementing the technical scheme that the embodiments of the present invention one provide needs to have certain premise,
Continuing with the access specific embodiment of the invention two.
Embodiment two
Referring to Fig. 2, methods of the Fig. 2 for the data that Added New Attribute in another database provided in an embodiment of the present invention
Flow chart.As shown in Fig. 2 this method includes：
Step S201, reserved field description is added in having the data entity for increasing new attribute data demand；
Specifically, database includes multiple data entities, there is Added Business demand (to there is the new attribute data of increase to need
Ask) data entity in add reserved field description.The reserved field description, specifically, being CLOB data type category
Property.CLOB data type attributes are added in the entity for being easy to have Future Data extension demand in designing for database in invention
" reserved field description " is used to make reserved prepare to the extension of following attribute information.
Specifically, the step S201 includes：
Obtain the request of addition CLOB data types attribute " reserved field description "；
Obtain the data entity position of pre- addition CLOB data types attribute " reserved field description "；
It is determined that the data entity corresponding with the data entity position, establishes CLOB data class in the data entity
" the reserved field description " of type attribute.
Such as the key message by client entity, such as customer number, customer name, sex, client's grading system, client
The crucial basic category for determining attribute as entity such as preference product, Client Work unit, customer households address, client's educational background grade
Property, while " the reserved field description " for adding a CLOB data type attribute is used to carry future uncertain attribute, when having
New demand data need not change database table structure when (such as addition customer telephone number, client's birthday), it is only necessary to " reserved
The XML texts that field description " is carried add new tag entry.Represented for visualization, it is now sub as an example, refer to table 1
With table 2, table 1 is the structure form of the data entity of prior art, and table 2 is the structure form of the data entity of the present invention.
Step S202, obtains message, and the message includes the request for the data that Add New Attribute；
Step S203, analytic message, the new attribute data is resolved to the attributes of MappedClob data type objects；
Step S204, the MappedClob data types object is converted into expandable mark language XML form, established
Expandable mark language XML text, the new attribute data are stored in the expandable mark language XML text；
Step S205, the expandable mark language XML text is stored into the database corresponding data entity
The position of interior reserved field description.
The present invention takes into full account future services autgmentability demand, to there is the data entity of operation expanding demand to add CLOB numbers
According to type attribute " reserved field description ", for carrying the autgmentability demand of Future Services Development.Due to CLOB data type energy
It is enough to be stored multiple data item and corresponding types in the form of autgmentability label, when there is newly-increased data entity attribute demand
When, it is thus only necessary to new label is created in " reserved field description ", overall data library structure will not be destroyed, more will not be as existing
The modification of large area program code, therefore, technology provided by the invention can be caused in newly-increased data entity attribute by having in technology
Scheme can greatly promote the total quality of software.
In order to illustrate technical scheme provided by the invention more fully hereinafter, the embodiment of the present invention is also provided in a kind of database
The structure chart of the device for the data that Add New Attribute.
Fig. 3 be a kind of database provided in an embodiment of the present invention in Add New Attribute data device structure chart.Such as Fig. 3
Shown, the device includes：
Receive message unit 301, for obtaining message, the message includes the request for the data that Add New Attribute；
Packet parsing unit 302, for analytic message, the new attribute data is resolved into MappedClob data types
The attribute of object；
New attribute data memory cell 303, for the MappedClob data types object to be converted into expansible mark
Remember Language XML form, establish expandable mark language XML text, the new attribute data is stored in the extensible markup language
Say in XML texts；
Expandable mark language XML text memory cell 304, for the expandable mark language XML text to be stored
The position that reserved field describes in corresponding data entity into the database.
Fig. 4 be another database provided in an embodiment of the present invention in Add New Attribute data device structure chart.
As shown in figure 4, the device includes：
Unit 401 is established in reserved field description, pre- for being added in having the data entity for increasing new attribute data demand
Write down characters segment description；The reserved field is described as character blob CLOB data type attributes；
Receive message unit 402, for obtaining message, the message includes the request for the data that Add New Attribute；
Packet parsing unit 403, for analytic message, the new attribute data is resolved into MappedClob data types
The attribute of object；
New attribute data memory cell 404, for the MappedClob data types object to be converted into expansible mark
Remember Language XML form, establish expandable mark language XML text, the new attribute data is stored in the extensible markup language
Say in XML texts；
Expandable mark language XML text memory cell 405, for the expandable mark language XML text to be stored
The position that reserved field describes in corresponding data entity into the database.
Specifically, the reserved field description is established unit 401 and included：
First acquisition unit, for obtaining the request of addition CLOB data types attribute " reserved field description "；
Second acquisition unit, for obtaining the data entity position of pre- addition CLOB data types attribute " reserved field description "
Put；
Subelement is established in reserved field description, for determining the data entity corresponding with the data entity position,
" the reserved field description " of CLOB data type attributes is established in the data entity.
Understood via above-mentioned technical scheme, it is compared with prior art, new the invention provides being added in a kind of database
The method and apparatus of attribute data.Using the method and apparatus for the data that Added New Attribute in database provided by the invention, when obtaining
After getting the message including the request of data that Adds New Attribute, analytic message, the new attribute data is resolved into MappedClob
The attribute of data type object, the MappedClob data types object is then converted into expandable mark language XML lattice
Formula, expandable mark language XML text is established, the new attribute data is stored in the expandable mark language XML text
In, finally, the expandable mark language XML text of the new attribute data will be stored with, be stored in database corresponding
Data entity in reserved field description position, new attribute data is added in database so as to realize.The present invention provides
Technical scheme, new attribute data is added in database the position that reserved field in corresponding data entity describes, it is not necessary to
The structure of data entity in database (including tables of data) is modified, so as to avoid new attribute number in the prior art
The problem of database table structure confusion easily brought in database according to being added to, and then can avoid easily leading in the prior art
The problem of causing creation data to lose, face to provide safeguard during Added Business demand for follow-up system, guarantee information system with
The security of database.
In addition, in current technology, new attribute data is added in database and easily brings database table structure chaotic
The problem of, cause substantial amounts of program to need to change, make software total quality relatively low, technical scheme provided by the invention, it is not necessary to
Destroy database table structure, therefore, the problem of would not also causing database table structure confusion, it is not necessary to program code is carried out big
Amount modification, so that software total quality is higher.
Finally, it is to be noted that, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
- A kind of 1. method for the data that Added New Attribute in database, it is characterised in that including：Message is obtained, the message includes the request for the data that Add New Attribute；Analytic message, the new attribute data is resolved to the attribute of MappedClob data type objects；The MappedClob data types object is converted into expandable mark language XML form, establishes extensible markup language XML texts are sayed, the new attribute data is stored in the expandable mark language XML text；The expandable mark language XML text is stored into the database into reserved field in corresponding data entity to describe Position.
- 2. according to the method for claim 1, it is characterised in that obtain the message from message interface.
- 3. according to the method for claim 1, it is characterised in that the MappedClob is and database character blob The corresponding Java data types of CLOB data types.
- 4. according to the method for claim 1, it is characterised in that before the acquisition message, in addition to：The reserved field description is added in having the data entity for increasing the new attribute data demand；It is described pre- to write down characters Segment description is character blob CLOB data type attributes.
- 5. according to the method for claim 1, it is characterised in that the method for calling asXML functions, by the MappedClob Data type object is converted to expandable mark language XML form.
- 6. according to the method for claim 1, it is characterised in that the new attribute data is stored by way of defining label In expandable mark language XML text, the mode for defining label includes：The title and data type of label are defined, and For the label assignment.
- 7. according to the method for claim 1, it is characterised in that the reserved field is described as character blob CLOB data Type attribute.
- 8. according to the method for claim 1, it is characterised in that by calling Ibatis data access layer operations, by described in Expandable mark language XML text stores into the database position that reserved field describes in corresponding data entity.
- A kind of 9. device for the data that Added New Attribute in database, it is characterised in that including：Receive message unit, for obtaining message, the message includes the request for the data that Add New Attribute；Packet parsing unit, for analytic message, the new attribute data is resolved into MappedClob data type objects Attribute；New attribute data memory cell, for the MappedClob data types object to be converted into extensible markup language XML format, establishes expandable mark language XML text, and the new attribute data is stored in the expandable mark language XML text In this；Expandable mark language XML text memory cell, for the expandable mark language XML text to be stored to the number According to the position that reserved field describes in corresponding data entity in storehouse.
- 10. device according to claim 9, it is characterised in that also include:Unit is established in reserved field description, for adding institute in having the data entity for increasing the new attribute data demand State reserved field description；The reserved field is described as character blob CLOB data type attributes.
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| CN108257013A (en) * | 2016-12-28 | 2018-07-06 | 平安科技（深圳）有限公司 | Insurance products define method and device |
| CN109101265B (en) * | 2017-06-14 | 2021-11-23 | 中国移动通信集团重庆有限公司 | Method and system for gray scale publishing |
| CN107943926A (en) * | 2017-11-21 | 2018-04-20 | 郑州云海信息技术有限公司 | The attribute increase method, apparatus and medium of a kind of tables of data |
| CN108073709B (en) * | 2017-12-20 | 2020-07-24 | 上海达梦数据库有限公司 | Data recording operation method, device, equipment and storage medium |
| CN109542893B (en) * | 2018-10-19 | 2021-05-28 | 深圳点猫科技有限公司 | Composite data structure setting method based on programming language and electronic equipment |
| CN111259201B (en) * | 2018-12-03 | 2023-08-18 | 北京嘀嘀无限科技发展有限公司 | Data maintenance method and system |
| CN111159215B (en) * | 2019-12-06 | 2023-05-09 | 深圳数联天下智能科技有限公司 | Mapping method and device for Java class and relational database and computing equipment |
| CN112948306A (en) * | 2021-03-30 | 2021-06-11 | 中国建设银行股份有限公司 | Method and device for expanding system interface |
| CN113656433B (en) * | 2021-08-16 | 2023-09-05 | 北京京东振世信息技术有限公司 | Entity object expansion method, entity object expansion device, electronic equipment and storage medium |
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