CN102253975A - Automatic switching system and method for database - Google Patents
Automatic switching system and method for database Download PDFInfo
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- CN102253975A CN102253975A CN2011101632541A CN201110163254A CN102253975A CN 102253975 A CN102253975 A CN 102253975A CN 2011101632541 A CN2011101632541 A CN 2011101632541A CN 201110163254 A CN201110163254 A CN 201110163254A CN 102253975 A CN102253975 A CN 102253975A
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Abstract
The invention discloses an automatic switching system and method for a database. The system disclosed by the invention comprises a database linking module, a database table analysis module, a structure information generation module and a structure body generation module, wherein the database linking module is used for linking the database according to the IP address, user name and/or passwords of the database; the database table analysis module is used for querying and analyzing the structure information of each table in a defined database; the structure information generation module is used for generating each filed type for describing a structure body and dimension information thereof according to the structure information of each table; and the structure body generation module is used for generating the corresponding data structure body of each table according to the field and dimension information of the structure body. In the embodiment of the invention, the data tables and the field information are analyzed by utilizing a database engine; the name, type and annotation of the corresponding structure body are automatically compiled according to the rules of the data tables and the field information; the header file corresponding to the structure body can be rapidly and automatically generated; the manpower cost is convenient to maintain and lower; only the database tables are maintained and the fields are updated, the corresponding header file can be automatically updated; the normalization of codes can be ensured; the header file does not need to be compiled table by table and field by field; and the accuracy of the system is ensured.
Description
Technical field
The present invention relates to areas of information technology, relate in particular to a kind of database automated conversion system and method.
Background technology
In product development, usually can relate to and to carry out the software product that mass data is handled, therefore; in such Products Development process; often all to carry out the design of database and form, saving the data in the database table, change and operation such as look into thereby conveniently carry out additions and deletions.
With the C/C++ software development is example, generally writes the related data structure body synchronously according to design documentation or database table and field, so that carry out data manipulation.So not only workload is big, and is easy to make mistakes; And want strictness to keep the unanimity of data structure body when later stage modify database or structure, therefore need not go up otherwise database table is corresponding with structure by showing the word for word correspondence of section, software will be made mistakes.
Summary of the invention
The purpose of the embodiment of the invention is according to causing workload greatly and the present situation of easily makeing mistakes by hand-coding related data structure body in the software product exploitation, a kind of database automated conversion system and method are provided, utilize database engine, analytical data lattice and field, according to rule wherein, automatically write corresponding structure title, type and note, can generate corresponding structure header file so automatically.Utilize this software and method, only need the renewal of maintenance data base form and field, corresponding header file can upgrade automatically, recompilates software and gets final product; And need not by table word for word section remove to write header file.
In order to reach the foregoing invention purpose, a kind of database automated conversion system that the embodiment of the invention proposes is to realize by following technical scheme:
A kind of database automated conversion system, described system comprises:
The database link block is used for connecting database according to database IP address, user name and/or password;
The database table analysis module is used for each list structure information of query analysis specified database;
The structural information generation module is used for each field type and size information thereof according to the structural information generation description scheme body of described each table;
The structure generation module is used for field and size information according to described structure, generates the corresponding data structure body of each table.
Further preferably, described system also comprises:
The file output module is used to generate final structural information file and structure file.
Further preferably, described structure file also comprises corresponding type declarations information, annotation information and header file information.
Further preferably, described list structure information comprises that table name claims, shows description, field name, field type, field size and/or field description.
Further preferably, each field type of described structure comprises structure name, structure description, name variable, types of variables, variable size and/or variable description.
In order to realize aforementioned goal of the invention, the embodiment of the invention has also proposed a kind of database automatic switching method, and described method is achieved through the following technical solutions:
A kind of database automatic switching method said method comprising the steps of:
The database IP, the username and password that provide according to system connect database;
According to the query function that database provides, all list structure information of inquiry specified database are obtained form and field information;
According to the structural information of described table, generate each field type and the size information thereof of corresponding structure body;
According to each field type and the size information thereof of described structure, generate corresponding data list structure body.
Further preferably, described method also comprises:
Carry out the traversal of tables of data and view, finish the conversion of full database list structure.
Further preferably, described method also comprises and generating and export structure information and structure header file.
Further preferably, described file also comprises type declarations file, annotation information and header file information.
Further preferably, described list structure information comprises that table name claims, shows description, field name, field type, field size and/or field description.
Further preferably, each field type of described structure comprises structure name, structure description, name variable, types of variables, variable size and/or variable description.
Compared with prior art, database automated conversion system and method that the embodiment of the invention provides are utilized database engine, analytical data lattice and field information, according to rule wherein, automatically write corresponding structure title, type and note, can fast automaticly generate corresponding structure header file like this, be convenient to safeguard the minimizing human cost; Utilize technical scheme of the present invention, only need the renewal of maintenance data base form and field, corresponding header file can upgrade automatically, recompilates software and gets final product, and can guarantee the standardization of code; And need not by table word for word section remove to write header file, guarantee the correctness of system.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the present invention will become apparent and understand easily.
Fig. 1 is the system function module figure of 1 one kinds of database automated conversion systems of the embodiment of the invention;
Fig. 2 is the system function module figure of the embodiment of the invention 2 another kind of database automated conversion systems;
Fig. 3 is the process flow diagram of 3 one kinds of database automatic switching methods of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
As shown in Figure 1, be 1 one kinds of database automated conversion systems of the embodiment of the invention, described system comprises:
The database link block is used for connecting database according to database IP address, user name and/or password;
The database table analysis module is used for each list structure information of query analysis specified database;
The structural information generation module is used for each field type and size information thereof according to the structural information generation description scheme body of described each table;
The structure generation module is used for field and size information according to described structure, generates the corresponding data structure body of each table.
Further preferably, described list structure information comprises that table name claims, shows description, field name, field type, field size and/or field description.
Further preferably, each field type of described structure comprises structure name, structure description, name variable, types of variables, variable size and/or variable description.
The present invention's one preferred embodiment is as follows: operating system adopts Windows XP or Linux, development environment adopts C/C++, database environment adopts databases such as MySQL or Oracle, the database manipulation mode adopts ODBC, the form of output file: the standard C header file is used for supporting the cross-platform development environment of linux or windows to use.One of ordinary skill in the art of the present invention can know, technical scheme of the present invention can realize in windows or linux system, also select other operating system according to actual conditions, the present invention does not limit OS Type and the type of database and the database manipulation mode of realization.
As shown in Figure 1, it is the functional block diagram of embodiment of the invention data conversion system, with above-mentioned preferred embodiment is example, and this data conversion system comprises as lower module: database link block 100, data list structure analysis module 102, structural information generation module 104, structure generation module 106.
Described database link block 100 is used to connect database, connect database according to database IP address, username and password, also need to know the driving of database and connected mode or the like simultaneously, to handle information such as the mechanism of reconnecting and database character collection during connection, to guarantee connection stability and accuracy, avoid occurring problems such as mess code.
Described database table analysis module 102 is used for the analytical table structural information, promptly be used to analyze each list structure information of specified database, according to the function that PL/SQL provides, inquire about whole tables of data titles, the information such as field name, field type, uniqueness, external key, default value and explanation of table.
Described structural information generation module 104 is used for the structural information of generation table correspondence, promptly be used to generate information such as each field type of description scheme body and size, can distribute the memory headroom of corresponding size when inner the use is convenient in its field size explanation automatically according to this structure; It is unusual both can effectively to have utilized memory headroom also can avoid memory address occurring.
Described structure generation module 106 is used for the data structure body of generation table correspondence, the structure correspondence C-structure body information of final generation, make the database table structure can be corresponding one by one with the C-structure body.
As the field type conversion regime be:
As UNSIGNED-＞unsigned integer number can add symbol and no symbol prefix
BIGINT -＞ INT64
VARCHAR -＞ char
CHAR -＞ char
VARBINARY-＞char[], have length information
BINARY-＞char[], have length information
INTFGER -＞ int
ENUM -＞ int
SMALLINT -＞ short
DATETIME -＞ unsigned?int
LONGBLOB -＞ void＊
FLOAT -＞ float
DOUBLE -＞ double
Further preferably, described system also comprises:
The file output module is used to generate final structural information file and structure file.
Further preferably, described structure file also comprises corresponding type declarations information, annotation information and header file information.
As shown in Figure 2, described file output module 108 is used to generate final structural information file and structure file, this is the output of native system, promptly comprise structural information and structure file in the file, also comprise corresponding annotation information and necessary C/C++ header file information, promptly, finish the output of structural information and structure according to the requirement of C/C++ language format; Not only comprise necessary information in the file, also comprise type declarations file and normal C/C++ language requirement as #ifndef, #define, #pragma pack information such as (1).
Concrete instance with the form generating structure body information in the real system describes:
The Department_tbl department table is as follows:
It is as follows to generate data structure information according to data list structure:
/ * Table:[Department_tbl] the Comment:[department table; InnoDB free:87040 kB; (`ubiServerld`) REFER`VIS3/VisServer_tbl` (`ubiLogic] */
tagRes?DepartmentRes＝{″VIS3″，″Department_tbl″，7}；
tagField?DepartmentFields[]＝{
{ T_UINT64,0, " ubiLogicld " } ,/* logical number */
{ T_ACHAR, 50, " szName " } ,/* title */
{ T_UINT64,0, " ubiServerld " } ,/* place server numbering */
{ T_UINT32,0, " uiShortCode " }, the short coding of/* */
{ T_UINT64,0, " ubiFatherld " }, the numbering * of/* higher level department/
{ T_ACHAR, 50, " szDescription " } ,/* describe */;
extern?tagRes?DepartmentRes；
extern?tagField?DepartmentFields[]；
According to above structural information, the structure information of generation is as follows:
/ * Table:[Department_bl] Comment; [department table; InnoDB free:87040 kB; (`ubiServerld`) REFER`VIS3/VisServer_tbl` (`ubiLogic] */
typedef?struct__tag?Department{
UINT64 ubiLogicld; / * logical number */
Char szName[50]; / * title */
UINT64 ubiServerld; / * place server numbering */
Unsigned int uiShortCode; The short coding of/* */
UINT64 ubiFatherld; The numbering * of/* higher level department/
Char szDescription[50]; / * describe */tag Department;
Compared with prior art, the database automated conversion system that the embodiment of the invention provides utilizes database engine, analytical data lattice and field information, according to rule wherein, automatically write corresponding structure title, type and note, can fast automaticly generate corresponding structure header file like this, be convenient to safeguard the minimizing human cost; Utilize technical scheme of the present invention, only need the renewal of maintenance data base form and field, corresponding header file can upgrade automatically, recompilates software and gets final product, and can guarantee the standardization of code; And need not by table word for word section remove to write header file, guarantee the correctness of system.
As shown in Figure 3, the embodiment of the invention 3 also provides a kind of database automatic switching method, said method comprising the steps of:
The database IP, the username and password that provide according to system connect database;
According to the query function that database provides, all list structure information of inquiry specified database are obtained form and field information;
According to described list structure information, generate each field type and the size information thereof of corresponding structure body;
According to each field type and the size information thereof of described structure, generate the data structure body of each table.
Further preferably, described method also comprises:
Carry out the traversal of tables of data and view, finish the conversion of full database list structure.
Further preferably, described method also comprises and generating and export structure information and structure header file.
Further preferably, described file also comprises type declarations file, annotation information and header file information.
Further preferably, described list structure information comprises that table name claims, shows description, field name, field type, field size and/or field description.
Further preferably, each field type of described structure comprises structure name, structure description, name variable, types of variables, variable size and/or variable description.
Database automatic switching method one preferred embodiment of the present invention is as follows: operating system adopts WindowsXP or Linux, development environment adopts C/C++, database environment adopts databases such as MySQL or Oracle, the database manipulation mode adopts ODBC, the form of output file: the standard C header file is used for supporting the cross-platform development environment of linux or windows to use.One of ordinary skill in the art of the present invention can know, technical scheme of the present invention can realize in windows or linux system, also select other operating system according to actual conditions, the present invention does not limit OS Type and the type of database and the database manipulation mode of realization.
Be example with above-mentioned preferred embodiment as shown in Figure 3, the step of this method is as follows:
Step S1 connects database, and the database IP, the username and password that provide according to system connect database, also needs to know the driving of database and connected mode or the like simultaneously, also will specify information such as mechanism of reconnecting and corresponding characters collection during connection.
Step S2 obtains form and field information, and according to the function that PL/SQL provides, all list structure information of inquiry specified database comprise that table name claims, shows information such as description, field name, field type, field size, field description.
Step S3, generating structure information according to the information that obtains among the S2, is converted to corresponding structure body name, structure description, name variable, types of variables, variable size, variable description; The structural information that this step generates has been field size explanation with the difference in the S4 step, and being convenient to when Processing Structure body information automatically, storage allocation uses for program.
Step S4 generates the C-structure body, generates corresponding C-structure body according to the information that obtains among the S3.
The field type conversion regime is exemplified as:
As UNSIGNED-＞unsigned integer number can add symbol and no symbol prefix
BIGINT -＞ INT64
VARCHAR -＞ char
CHAR -＞ char
VARBINARY-＞char[], have length information
BINARY-＞char[], have length information
INTEGER -＞ int
ENUM -＞ int
SMALLINT -＞ short
DATETIME -＞ unsigned?int
LONGBLOB -＞ void＊
FLOAT -＞ float
DOUBLE -＞ double
Strict byte-aligned to be carried out during conversion, otherwise error in data will be produced.
Step S5, the tables of data traversal finishes; At this table in whole data and view etc. are traveled through, to finish the conversion of full database list structure.
Step S6, export structure information and structure header file according to the requirement of C/C++ language format, are finished the output of structural information and structure; Not only comprise necessary information in the file, also comprise type declarations file and normal C/C++ language requirement as #ifndef, #define, #pragma pack information such as (1).
Concrete instance with the form generating structure body information in the real system describes:
The Department_tbl department table is as follows:
It is as follows to generate data structure information according to data list structure:
/ * Table:[Department_tbl] the Comment:[department table; InnoDB free:87040 kB; (`ubiServerld`) REFER`VIS3/VisServer_tbl` (`ubiLogic] */
tagRes?DepartmentRes＝{″VIS3″，″Department_tbl″，7}；
tagField?DepartmentFields[]＝{
{ T_UINT64,0, " ubiLogicld " } ,/* logical number */
{ T_ACHAR, 50, " szName " } ,/* title */
{ T_UINT64,0, " ubiServerld " } ,/* place server numbering */
{ T_UINT32,0, " uiShortCode " }, the short coding of/* */
{ T_UINT64,0, " ubiFatherld " }, the numbering * of/* higher level department/
{ T_ACHAR, 50, " szDescription " } ,/* describe */;
extern?tagRes?DepartmentRes；
extern?tagField?DepartmentFields[]；
According to above structural information, the structure information of generation is as follows:
/ * Table:[Department_tbl] the Comment:[department table; InnoDB free; 87040 kB; (`ubiServerld`) REFER`VIS3/VisServer_tbl` (`ubiLogic] */
typedef?struct__tag?Department{
UINT64 ubiLogicld; / * logical number */
Char szName[50]; / * title */
UINT64 ubiServerld; / * place server numbering */
Unsigned int uiShortCode; The short coding of/* */
UINT64 ubiFatherld; The numbering * of/* higher level department/
Char szDescription[50]; / * describe */tag Department;
Compared with prior art, the database automatic switching method that the embodiment of the invention provides utilizes database engine, analytical data lattice and field information, according to rule wherein, automatically write corresponding structure title, type and note, can fast automaticly generate corresponding structure header file like this, be convenient to safeguard the minimizing human cost; Utilize technical scheme of the present invention, only need the renewal of maintenance data base form and field, corresponding header file can upgrade automatically, recompilates software and gets final product, and can guarantee the standardization of code; And need not by table word for word section remove to write header file, guarantee the correctness of system.
One of ordinary skill in the art of the present invention are appreciated that; the above embodiment of the present invention only is one of the preferred embodiments of the present invention; be the length restriction; here can not all embodiments of particularize; any enforcement that can embody claim technical scheme of the present invention is all in protection scope of the present invention.
It should be noted that; above content is to further describing that the present invention did in conjunction with concrete embodiment; can not assert that the specific embodiment of the present invention only limits to this; under above-mentioned guidance of the present invention; those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improvement or distortion drop in protection scope of the present invention.
Claims (10)
1. a database automated conversion system is characterized in that, described system comprises:
The database link block is used for connecting database according to database IP address, user name and/or password;
The database table analysis module is used for each list structure information of query analysis specified database;
The structural information generation module is used for each field type and size information thereof according to the structural information generation description scheme body of described each table;
The structure generation module is used for field and size information according to described structure, generates the corresponding data structure body of each table.
2. system according to claim 1 is characterized in that, described system also comprises:
The file output module is used to generate final structural information file and structure file.
3. system according to claim 2 is characterized in that, described structure file also comprises corresponding type declarations information, annotation information and header file information.
4. according to any described system of claim 1 to 3, it is characterized in that described list structure information comprises that table name claims, shows description, field name, field type, field size and/or field description.
5. according to any described system of claim 1 to 4, it is characterized in that each field type of described structure comprises structure name, structure description, name variable, types of variables, variable size and/or variable description.
6. a database automatic switching method is characterized in that, said method comprising the steps of:
The database IP, the username and password that provide according to system connect database;
According to the query function that database provides, all list structure information of inquiry specified database are obtained form and field information;
According to described list structure information, be generated as each field type and the size information thereof of corresponding structure body;
According to each field type and the size information thereof of described structure, generate corresponding data list structure body.
7. method according to claim 6 is characterized in that, described method also comprises generation and export structure information and structure header file, and wherein, described file also comprises type declarations file, annotation information and header file information.
8. method according to claim 7 is characterized in that, described file also comprises type declarations file, annotation information and header file information.
9. according to any described method of claim 6 to 8, it is characterized in that described list structure information comprises that table name claims, shows description, field name, field type, field size and/or field description.
10. according to any described method of claim 6 to 9, it is characterized in that each field type of described structure comprises structure name, structure description, name variable, types of variables, variable size and/or variable description.
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| CN103810257A (en) * | 2014-01-24 | 2014-05-21 | 华为技术有限公司 | Method and device for upgrading software database and equipment |
| CN105550242A (en) * | 2015-12-08 | 2016-05-04 | 方正移动传媒技术（北京）有限公司 | Data processing method and device of relational database |
| CN105677324A (en) * | 2015-12-31 | 2016-06-15 | 合肥大多数信息科技有限公司 | Method for automatically generating entity type codes |
| CN106657145A (en) * | 2017-01-23 | 2017-05-10 | 北京安华金和科技有限公司 | Method for automatically finding database based on communication protocol and SQL grammar |
| CN107291961A (en) * | 2017-08-08 | 2017-10-24 | 中国银行股份有限公司 | A kind of data processing method and device |
| CN107885500A (en) * | 2017-10-31 | 2018-04-06 | 惠州市蓝微新源技术有限公司 | A kind of runtime environment generation method towards AUTOSAR software architectures |
| CN108241499A (en) * | 2018-01-05 | 2018-07-03 | 金行家（深圳）文化传播有限公司 | Update method, device and the computer readable storage medium of field value annotation |
| CN108363565A (en) * | 2018-01-29 | 2018-08-03 | 福建榕基软件工程有限公司 | A kind of method and terminal generating attribute declaration code |
| CN109542453A (en) * | 2018-11-20 | 2019-03-29 | 北京千丁互联科技有限公司 | Database information recognition methods, device and terminal |
| CN115495442A (en) * | 2022-11-16 | 2022-12-20 | 深圳市明源云采购科技有限公司 | Database operation file generation method, device, equipment and storage medium |
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| CN103810257A (en) * | 2014-01-24 | 2014-05-21 | 华为技术有限公司 | Method and device for upgrading software database and equipment |
| CN103810257B (en) * | 2014-01-24 | 2018-07-13 | 华为技术有限公司 | A kind of method, apparatus and equipment of upgrading software database |
| CN105550242A (en) * | 2015-12-08 | 2016-05-04 | 方正移动传媒技术（北京）有限公司 | Data processing method and device of relational database |
| CN105677324A (en) * | 2015-12-31 | 2016-06-15 | 合肥大多数信息科技有限公司 | Method for automatically generating entity type codes |
| CN106657145B (en) * | 2017-01-23 | 2019-07-05 | 北京安华金和科技有限公司 | A kind of database automatic discovering method based on communication protocol and SQL syntax |
| CN106657145A (en) * | 2017-01-23 | 2017-05-10 | 北京安华金和科技有限公司 | Method for automatically finding database based on communication protocol and SQL grammar |
| CN107291961A (en) * | 2017-08-08 | 2017-10-24 | 中国银行股份有限公司 | A kind of data processing method and device |
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| CN107885500A (en) * | 2017-10-31 | 2018-04-06 | 惠州市蓝微新源技术有限公司 | A kind of runtime environment generation method towards AUTOSAR software architectures |
| CN107885500B (en) * | 2017-10-31 | 2021-05-18 | 惠州市蓝微新源技术有限公司 | Runtime environment generation method oriented to AUTOSAR software architecture |
| CN108241499A (en) * | 2018-01-05 | 2018-07-03 | 金行家（深圳）文化传播有限公司 | Update method, device and the computer readable storage medium of field value annotation |
| CN108363565A (en) * | 2018-01-29 | 2018-08-03 | 福建榕基软件工程有限公司 | A kind of method and terminal generating attribute declaration code |
| CN109542453A (en) * | 2018-11-20 | 2019-03-29 | 北京千丁互联科技有限公司 | Database information recognition methods, device and terminal |
| CN115495442A (en) * | 2022-11-16 | 2022-12-20 | 深圳市明源云采购科技有限公司 | Database operation file generation method, device, equipment and storage medium |
| CN115495442B (en) * | 2022-11-16 | 2023-08-04 | 深圳市明源云采购科技有限公司 | Database operation file generation method, device, equipment and storage medium |
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