CN102890720A - Database inspection and maintenance method - Google Patents
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Abstract
The invention relates to a database inspection and maintenance method. The database inspection and maintenance method comprises the following steps: step 1: establishing a database version, obtaining the newest version database structure, forming database structure script syntax, and storing database structure information; step 2: defining a basic list, obtaining the basic data of the newest version, forming basic data syntax, and storing the basic data; step 3: obtaining a database structure and the basic data of a database to be compared or a database of the history version; and step 4: comparing the database structure with the basic data to form a difference report and produce upgrade syntax. According to the database inspection and maintenance method, the changing situation of database environment can be inspected at any time, and corresponding version files can be formed. According to the database inspection and maintenance method, the automatic inspection on the user database and the rapid upgrading can be realized, and the automatic upgrade of software of a database system can be used. The universal database inspection and maintenance method provided by the invention has the advantages that the applicability is wide, the workload of the manual maintenance on the database and the possibility of making mistakes can be reduced, and also the error ratio of the manual operation is reduced.
Description
Technical field
The present invention relates to the database auditing area of maintenance, be specifically related to a kind of inspection, maintaining method of database.
Background technology
At computer application field, the needs according to using often require to carry out irregular maintenance and upgrading for the database that is using.For example, be in the software development process, variation along with software version, can have the continuous variation of database structure, and the software of issue is in client's use procedure, along with client's changes in demand, in maintenance process, need to change or upgrade the data library structure, because the continuous variation of the function of software own, also may cause different clients' the database structure version may be inconsistent.In the situation that does not affect client's use, upgrade, just must form the variance reports of database structure and basic data, can automatically produce the upgrading grammer.
At present, there are some problems in existing database maintenance and upgrading.
At first, in the system performance history, generally take the physical model of maintenance data base, maintenance be complete data structure, but in concrete performance history, may need change data structure repeatedly, need the grammer of accurately record change, this is under the design and development environment of multiple person cooperational, if configuration and poor management, be easy to occur record disappearance or part error, be difficult to find, cause model bank inconsistent situation to occur with development library.
Secondly, the customer database inspection of application system and the mode of upgrading generally are to set up first the upgrading grammer of different database versions and adjacent version, utilize version to change when then upgrading and obtain one group of upgrading grammer, need to from the lowest version to the highest version, process one by one the upgrading grammer of each version, such inefficiency, and the database version information that need to provide is complete, in case client's database changed because of certain reason, failure or user data loss then can directly cause upgrading.
The 3rd, on stream or in actual user's use procedure, the technician may change basic data, this behavior is difficult to supervision, can only carry out strict control and does not have effective checking mechanism.
Summary of the invention
Technical matters to be solved: for the defective of prior art existence, the objective of the invention is to provide for software development or maintenance process a kind of Inspection and maintenance method of database, the record of fulfillment database version and quick Inspection and maintenance or upgrade database, and report and database script grammer can be provided.
Technical scheme: a kind of database auditing maintaining method is characterized in that: comprise following step:
Step 1: the building database version, obtain current latest edition database structure, form database structure script grammer, stored data library structure information;
Step 2: the definition underlying table, obtain the latest edition basic data, basis of formation data syntax, storage basic data;
Step 3: database structure and the basic data of obtaining database to be compared or old version;
Step 4: comparing data library structure and basic data, form variance reports, produce the upgrading grammer.
Described step 1 may further comprise the steps:
Step 1-1: obtain in order database structure information, namely obtain first the subscriber's meter in the system, then obtain the field information of corresponding table, further obtain trigger, view and storage process, parse at last major key, the external key of table, when obtaining data, need to sort to data, i.e. contrast is set up the requirement of index and is sorted;
Step 1-2: utilize the database structure information obtained, the script grammer of tissue database in order is so that direct performing database script;
The data that step 1-3 has obtained according to ordering, are set up index, and organize grammer and store file according to the order in the index.
Described step 2 is the subscriber's meters that get access to according to step 1-1, it is base data table that correlation table is set, namely need to gather its data as the basic data of system, during image data, need first the field information of the table that obtains according to step 1-1, the script grammer of organizing the corresponding data of showing to read, increase sort field by the major key that obtains among the step 1-1 in the script grammer, like this, the basic data of obtaining is pressed the major key ordering, then utilizes the principle of index building among the step 1-3 to organize index file and data file.
Described index file is mainly put down in writing table name, record major key, the size of data, the storage name information of data file.
Described step 3 in two kinds of situation, a kind of is directly to compare with old version, only need read the version file that old version preserves gets final product, another kind is certain concrete user library of comparison, at this moment, being operating as of carrying out of storehouse to be compared obtained data structure information and storage file among the first execution in step 1-1, then obtain basic data and processing and stored data file in the execution in step 2; This step executes, and final result will produce two groups for data file relatively.
The data file that described step 4 utilizes step 3 to produce to comparing of data library structure, needs in order comparison database table, field, trigger, major key, index, external key, storage process; For the table that increases or reduce, then no longer compare other structural informations of its table; In comparison procedure, form relatively report according to difference, and produce corresponding upgrading grammer.
Described upgrading grammer need form first the grammer of increase-decrease plan, then forms increase and decrease and revises the grammer of field, forms at last the variation grammer of trigger, major key, external key, index.
Described step 4 may further comprise the steps:
Step 4-1: according to index file, read the index major key that both sides set up;
Step 4-2: compare major key, if major key is inconsistent, data and the grammer of directly putting down in writing the little side of major key get final product, and then continue to read lower this step of record repetition of the little side of major key;
Step 4-3: compare content, if major key is consistent among the step 4-2, then to compare content, if content is inconsistent, then will put down in writing difference and form gapping grammar, after content was completeer, both sides continued to read lower record and repeat above step, until that side's index file reads is complete, record gets final product as difference for the information that the opposing party is not completeer and grammer at last.
Beneficial effect: the present invention can check the situation of change of database environment at any time, and can form corresponding version file.The present invention can realize self-verifying customer data base and fast upgrading, can be used for the automatic renewal of the software of Database Systems.The invention provides the mode that a kind of general database auditing is safeguarded, applicability is wide, has reduced the workload of database manual maintenance and has reduced the possibility of makeing mistakes, manually-operated error rate.
Description of drawings
Fig. 1 is workflow synoptic diagram of the present invention;
Fig. 2 is the process flow diagram that is used for obtaining database information among the present invention;
Fig. 3 is the process flow diagram that is used for comparing data library information and basic data among the present invention.
Embodiment
Basic thought of the present invention is, database according to current use, utilize the system table of database, resolve each data structure, utilize the database syntax rule, form Relational database script grammer, obtain basic data, and by certain rule corresponding document is organized and be stored into to database structure information and basic data, and utilize the same manner in another user data lab environment, to gather related data or read the file of old version, then the building form according to different files compares.In comparison procedure, produce report and form simultaneously database upgrade or new syntax more.
The present invention is described in further detail below in conjunction with Figure of description and embodiment.
As shown in Figure 1, database auditing maintaining method of the present invention comprises following step:
Step 1: the building database version, obtain current latest edition database structure, form database structure script grammer, stored data library structure information;
According to concrete application, set current version number, utilize the structural relation of the system table of database, obtain database structure for information about, comprise the subscriber's meter in the storehouse, the main external key of the definition of literary name section, the trigger on the table, table, index, view and relevant storage process, relevant information obtain the system table that all derives from database, need to be familiar with the relation between system table, understand the storage structure of desired data.After obtaining data, need to suitably organize data, set up index file, namely need to define one group of mapping relations, for various information is set up index, but in order to can find respective file and the desired details of quick obtaining according to index.As his-and-hers watches field available categorical sign, table name claim, field name sets up an index value, and sorting data, can be by character string ascending order array data, then organize concrete content-data, the length of content is documented in the index file, namely can be according to index file quick obtaining content when reading out data.
The detailed process of step 1, as shown in Figure 2;
For ease of analyzing and processing data and formation data structure grammer, step 1-1: obtain in order database structure information, namely obtain first the subscriber's meter in the system, then obtain the field information of corresponding table, further obtain trigger, view and storage process, parse at last major key, the external key of table, when obtaining data, need to sort to data, i.e. contrast is set up the requirement of index and is sorted;
Step 1-2: utilize the database structure information obtained, the script grammer of tissue database in order is so that direct performing database script;
The data that step 1-3 has obtained according to ordering, are set up index, and organize grammer and store file according to the order in the index.
Step 2: the definition underlying table, obtain the latest edition basic data, basis of formation data syntax, storage basic data;
The subscriber's meter that gets access to according to step 1-1, it is base data table that correlation table is set, namely need to gather its data as the basic data of system, during image data, need first the field information of the table that obtains according to step 1-1, the script grammer of organizing the data of corresponding table to read, increase sort field by the major key that obtains among the step 1-1 in the script grammer, like this, the basic data of obtaining is pressed the major key ordering, then utilizes the principle of index building among the step 1-3 to organize index file and data file.Require the size of the file of record corresponding data in the index file, be convenient in step 4, can read fast required content.Index file is mainly put down in writing table name, record major key, the size of data, the storage name information of data file.
Step 3: database structure and the basic data of obtaining database to be compared or old version.In two kinds of situation, a kind of is directly to compare with old version, only need read the version file that old version preserves gets final product, another kind is certain concrete user library of comparison, at this moment, being operating as of carrying out of storehouse to be compared obtained data structure information and storage file among the first execution in step 1-1, then obtain basic data and processing and stored data file in the execution in step 2; This step executes, and final result will produce two groups for data file relatively.
Step 4: comparing data library structure and basic data, form variance reports, produce the upgrading grammer.
The data file of utilizing step 3 to produce to comparing of data library structure, needs in order comparison database table, field, trigger, major key, index, external key, storage process.For the table that increases or reduce, then no longer compare other structural informations of its table.In comparison procedure, form relatively report according to difference, and produce corresponding upgrading grammer.
Described upgrading grammer need form first the grammer of increase-decrease plan, then forms increase and decrease and revises the grammer of field, forms at last the variation grammer of trigger, major key, external key, index.
In step 4, also comprise the comparison of data file, be specially: the essence data files of utilizing two different editions of same tables of data, press the principle of major key sequential storing according to basic data after gathering, scanning document in order, the basic data of obtaining under the same major key compares, and reports the result, and wherein also comprises the basic data that increases or reduce.
Concrete implementation sees that Fig. 3 describes.
Step 4 may further comprise the steps:
Step 4-1: according to index file, read the index major key that both sides set up;
Step 4-2: compare major key, if major key is inconsistent, data and the grammer of directly putting down in writing the little side of major key get final product, and then continue to read lower this step of record repetition of the little side of major key;
Step 4-3: compare content, if major key is consistent among the step 4-2, then to compare content, if content is inconsistent, then will put down in writing difference and form gapping grammar, after content was completeer, both sides continued to read lower record and repeat above step, until that side's index file reads is complete, record gets final product as difference for the information that the opposing party is not completeer and grammer at last.
The comparison algorithm of Basis of Database data and structural information is consistent.Mainly be to utilize index file, the sequential scanning data file is carried out recycle ratio in scanning process, and all data only need scan can finish for one time and everyly relatively work like this, and treatment effeciency is high, and method is more common.When forming database script, should be noted that, the table of factor data bank, field, view, main external key etc. have the precedence relationship of foundation, must handle precedence relationship well, namely set up first table and literary name section, then just form other grammers, during implementation, can first inhomogeneity information be stored in different files, file be reorganized in the correct order again can form correct upgrading grammer at last.
The above is the preferred embodiments of the present invention only, is not restricted to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (8)
1. database auditing maintaining method is characterized in that: comprise following step:
Step 1: the building database version, obtain current latest edition database structure, form database structure script grammer, stored data library structure information;
Step 2: the definition underlying table, obtain the latest edition basic data, basis of formation data syntax, storage basic data;
Step 3: database structure and the basic data of obtaining database to be compared or old version;
Step 4: comparing data library structure and basic data, form variance reports, produce the upgrading grammer.
2. the database auditing maintaining method shown in according to claim 1, it is characterized in that: described step 1 may further comprise the steps:
Step 1-1: obtain in order database structure information, namely obtain first the subscriber's meter in the system, then obtain the field information of corresponding table, further obtain trigger, view and storage process, parse at last major key, the external key of table, when obtaining data, need to sort to data, i.e. contrast is set up the requirement of index and is sorted;
Step 1-2: utilize the database structure information obtained, the script grammer of tissue database in order is so that direct performing database script;
The data that step 1-3 has obtained according to ordering, are set up index, and according to the sequential organization grammer in the index and store file.
3. the database auditing maintaining method shown in according to claim 1, it is characterized in that: described step 2 is the subscriber's meters that get access to according to step 1-1, it is base data table that correlation table is set, namely need to gather its data as the basic data of system, during image data, need first the field information of the table that obtains according to step 1-1, the script grammer of organizing the corresponding data of showing to read, increase sort field by the major key that obtains among the step 1-1 in the script grammer, like this, the basic data of obtaining is pressed the major key ordering, then utilizes the principle of index building among the step 1-3 to organize index file and data file.
4. the database auditing maintaining method shown in according to claim 3, it is characterized in that: described index file is mainly put down in writing table name, record major key, the size of data, the storage name information of data file.
5. the database auditing maintaining method shown in according to claim 1, it is characterized in that: described step 3 in two kinds of situation, a kind of is directly to compare with old version, only need read the version file that old version preserves gets final product, another kind is certain concrete user library of comparison, at this moment, being operating as of carrying out of storehouse to be compared obtained data structure information and storage file among the first execution in step 1-1, then obtaining basic data and processing and stored data file in the execution in step 2; This step executes, and final result will produce two groups for data file relatively.
6. the database auditing maintaining method shown in according to claim 1, it is characterized in that: the data file that described step 4 utilizes step 3 to produce, to comparing of data library structure, need in order comparison database table, field, trigger, major key, index, external key, storage process; For the table that increases or reduce, then no longer compare other structural informations of its table; In comparison procedure, form relatively report according to difference, and produce corresponding upgrading grammer.
7. the database auditing maintaining method shown in according to claim 6, it is characterized in that: described upgrading grammer, need form first the grammer of increase-decrease plan, then form the grammer of increase and decrease and modification field, form at last the variation grammer of trigger, major key, external key, index.
8. according to claim 1 or the database auditing maintaining method shown in 6, it is characterized in that: described step 4 may further comprise the steps:
Step 4-1: according to index file, read the index major key that both sides set up;
Step 4-2: compare major key, if major key is inconsistent, data and the grammer of directly putting down in writing the little side of major key get final product, and then continue to read lower this step of record repetition of the little side of major key;
Step 4-3: compare content, if major key is consistent among the step 4-2, then to compare content, if content is inconsistent, then will put down in writing difference and form gapping grammar, after content was completeer, both sides continued to read lower record and repeat above step, until that side's index file reads is complete, record gets final product as difference for the information that the opposing party is not completeer and grammer at last.
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| CN104102511A (en) * | 2014-07-17 | 2014-10-15 | 福建星海通信科技有限公司 | SQL (structured query language) Server based automatic script upgrading system and method |
| CN104881455A (en) * | 2015-05-20 | 2015-09-02 | 深圳市酷开网络科技有限公司 | Structural difference processing method and system based on MYSQL |
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| CN106777025A (en) * | 2016-12-08 | 2017-05-31 | 北京中电普华信息技术有限公司 | A kind of analysis method and system of database physical model |
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| CN107679104A (en) * | 2017-09-12 | 2018-02-09 | 杭州美创科技有限公司 | Big surface low formula parallel high-speed data comparison method |
| CN107766570B (en) * | 2017-11-10 | 2020-04-07 | 广东电网有限责任公司电力科学研究院 | File homology checking method |
| CN107766570A (en) * | 2017-11-10 | 2018-03-06 | 广东电网有限责任公司电力科学研究院 | A kind of homologous check method of archives |
| CN112612839A (en) * | 2020-12-28 | 2021-04-06 | 中国农业银行股份有限公司 | Data processing method and device |
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Application publication date: 20130123 |