CN105512176A - Increment extracting method and system based on information powercenter - Google Patents
Increment extracting method and system based on information powercenter Download PDFInfo
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- CN105512176A CN105512176A CN201510824319.0A CN201510824319A CN105512176A CN 105512176 A CN105512176 A CN 105512176A CN 201510824319 A CN201510824319 A CN 201510824319A CN 105512176 A CN105512176 A CN 105512176A
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- G—PHYSICS
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- 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
- G06F16/254—Extract, transform and load [ETL] procedures, e.g. ETL data flows in data warehouses
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Abstract
The invention discloses an increment extracting method based on information power center. The method comprises steps of building a parameter file, designating a name and path of the parameter file, building an increment extracting thread generating the parameter file according to a map between a view and the parameter file, and modifying the view according to an increment extracting rule, dispatching a task of the increment extracting thread. The view is connected to a preset data base to acquire all increment extracting threads of the designated file folder; when the increment extracting task is called, the view is only modified as needed; a timestamp is configured through parameters; the parameters are generated via sql extraction in the view; if daily automatic generation is required, the sql uses a date function of the database; if a fixed day is required, the sql is changed into a fixed date; and increment extraction of the timestamp can be achieved as needed.
Description
Technical field
The present invention relates to data analysis field, particularly relate to a kind of increment extraction method based on InformaticaPowercenter and system.
Background technology
InformaticaPowerCenter is the world-class enterprise data integration platform of Informatica company exploitation, is also leading ETL instrument.InformaticaPowerCenter enables user easily from extracted data the existed system and data source of isomery, is used for setting up, disposes, the data warehouse of management enterprise, thus helps enterprise to make quick, correct decision-making.
The decimation pattern of ETL is divided into increment extraction and full dose to extract, as the term suggests full dose extracts and is all data required for extracting, and the time that this extraction mode consumes is long, and existence repeats extraction problem at every turn, and therefore general only meeting regularly execution.Relatively more conventional decimation pattern is increment extraction, is only extraction has variation data extracting from last time.The mode of increment extraction also has a variety of, and carrying out increment extraction according to timestamp is one of the most frequently used mode.
The more technology of existing use has the system variable by informatica.The timestamp field corresponding according to the satisfactory system time variable of screening realizes increment extraction, but needs to modify respectively to each task just can realize increment extraction when changing the requirement of screening, and dirigibility is poor.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of increment extraction method based on InformaticaPowercenter and system, can carry out the increment extraction of timestamp neatly according to demand.
For achieving the above object, the invention provides a kind of increment extraction method based on InformaticaPowercenter, comprising:
Set up Parameter File, specify title and the path of described Parameter File;
The increment extraction thread generating Parameter File is set up in mapping according to view and described Parameter File;
According to target increment extraction rules modification view, the task of execution cost increment extraction thread.
Preferably, set up according to the mapping of view and described Parameter File the extraction thread generating Parameter File to comprise:
Generate the view being used for obtaining all increment extraction threads under specified folder by being connected to preset knowledge storehouse;
Set up the mapping of described view and described Parameter File;
The task of described increment extraction thread is set up according to the path of described Parameter File;
The configuration information of parameter is added in the workflow of scheduling increment extraction;
The described task generating Parameter File is joined the workflow of described scheduling increment extraction foremost.
Preferably, the configuration information of described parameter comprises:
The path of Parameter File and parameter name.
Present invention also offers a kind of increment extraction system based on InformaticaPowercenter, comprising:
Parameter File sets up module, for setting up Parameter File, specifies title and the path of described Parameter File;
Increment extraction thread sets up module, for setting up the increment extraction thread generating Parameter File according to the mapping of view and described Parameter File;
Increment extraction module, for according to target increment extraction rules modification view, the task of execution cost increment extraction thread.
Preferably, described increment extraction thread is set up module and is comprised:
Submodule set up by view, for generating the view for obtaining all increment extraction threads under specified folder by being connected to preset knowledge storehouse;
Submodule is set up in mapping, for setting up the mapping of described view and described Parameter File;
Task creation submodule, for setting up the task of described increment extraction thread according to the path of described Parameter File;
Parameter configuration submodule, for adding the configuration information of parameter in the workflow of scheduling increment extraction;
Association submodule, for joining the workflow of described scheduling increment extraction foremost by the described task generating Parameter File.
Preferably the configuration information of described parameter comprises:
The path of Parameter File and parameter name.
Apply a kind of increment extraction method based on InformaticaPowercenter provided by the invention, set up Parameter File, specify title and the path of described Parameter File, the increment extraction thread generating Parameter File is set up in mapping according to view and described Parameter File, according to target increment extraction rules modification view, the task of execution cost increment extraction thread, because view is used for obtaining all increment extraction threads under specified folder by being connected to preset knowledge storehouse, when carrying out the task scheduling of increment extraction, only need revise view as required, timestamp is realized by parameter configuration, and parameter is extracted by the sql in view to generate, if need automatically generate every day, the then date function in sql usage data storehouse, if need to fix certain sky, then change sql into fixed dates, the increment extraction of timestamp can be carried out neatly according to demand.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the process flow diagram of a kind of increment extraction method embodiment based on InformaticaPowercenter of the present invention;
Fig. 2 is the detail flowchart of a kind of increment extraction method embodiment based on InformaticaPowercenter of the present invention;
Fig. 3 is that schematic diagram is set up in the mapping of a kind of increment extraction method embodiment based on InformaticaPowercenter of the present invention;
Fig. 4 is the task exploitation schematic diagram of a kind of increment extraction method embodiment based on InformaticaPowercenter of the present invention;
Fig. 5 is the task exploitation schematic diagram of a kind of increment extraction method embodiment based on InformaticaPowercenter of the present invention;
Fig. 6 is the parameter configuration schematic diagram of a kind of increment extraction method embodiment based on InformaticaPowercenter of the present invention;
Fig. 7 is the parameter configuration schematic diagram of a kind of increment extraction method embodiment based on InformaticaPowercenter of the present invention;
Fig. 8 is the structural representation of a kind of increment extraction system embodiment based on InformaticaPowercenter of the present invention;
Fig. 9 is the detailed construction schematic diagram of a kind of increment extraction system embodiment based on InformaticaPowercenter of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
$ $ SYSDATE in Informatica is the system variable representing present system time.Following formula can be used to realize increment extraction to the data that every day is extracted in prior art: timestamp field >=TRUNC ($ $ SYSDATE-1).Realizing of this method is fairly simple, but lacks dirigibility.Not only need to develop a set of corresponding program in addition and realize full dose extraction, wanting to change extraction time range also needs each task program amendment code.Such as need the data of extraction before three days, we need to make following amendment to expression formula above: timestamp field >=TRUNC ($ $ SYSDATE-3).
The invention provides a kind of increment extraction method based on InformaticaPowercenter, Fig. 1 shows the embodiment process flow diagram of the increment extraction method that the present invention is based on InformaticaPowercenter, comprising:
Step S101: set up Parameter File, specifies title and the path of described Parameter File;
Suppose that we have an increment task extracting SAP data now, need extract the incremental data of the previous day midnight 1 every day, the database used in the present embodiment example is oracle.First build Parameter File at informaticapowercenter server end, the name of file is asked for, and we suppose that parameter name and path are: F: TgtFiles HRADS PAV_Parameter_ERP.txt.
Step S102: the increment extraction thread generating Parameter File is set up in the mapping according to view and described Parameter File;
Develop the increment extraction thread session that generates Parameter File content, concrete steps as shown in Figure 2:
Step S201: generate the view being used for obtaining all increment extraction threads under specified folder by being connected to preset knowledge storehouse;
The source table extracted for view, the title of all session under this view gets certain file by the data being connected to powercenter data bank, the specific code of view is as follows, the incremental data of midnight 1 every day extraction the previous day:
createorreplaceviewv_jzbs_import_dateas
select
'['||a.SUBJECT_AREA||'.'||a.task_name||']'||'
'||to_char('$$DAY＝'||TO_CHAR((SYSDATE-1),'YYYYMMDD'))Import_Date
fromrep_all_tasksetldeva,N_JZBS_IMPORT_DATEb
wherea.subject_area＝'HR_ALL'anda.task_type_name＝'Session'andb.FLAG＝'1'
groupbya.SUBJECT_AREA,a.task_name；
Wherein etldev be connected to powercenter data bank dblink connect.
Step S202: the mapping of setting up described view and described Parameter File;
In InformaticaPowercenter platform, exploitation maps, and the source that is mapped as is to target, and namely view is to the mapping mapping of Parameter File, specifically as shown in Figure 3.
Step S203: the task of setting up described increment extraction thread according to the path of described Parameter File;
Develop the task task of described increment extraction thread, target type is chosen as file, and the path building Parameter File that routing sets before being.The place that should be noted that in addition is that separator is chosen as newline, so that by InformaticaPowercenter land identification, specifically as shown in Figure 4 and Figure 5.
Step S204: the configuration information adding parameter in the workflow of scheduling increment extraction;
Inside the workflow that scheduling is extracted, add the configuration information of parameter, the configuration information of parameter comprises: the path of Parameter File and the title of parameter, specifically as shown in Figure 6 and Figure 7.
Step S205: the described task generating Parameter File is joined the workflow of described scheduling increment extraction foremost.
The task generating Parameter File is joined the workflow of increment extraction, and be placed on foremost.Before so each scheduling increment task, timestamp just automatically changes and has come into force.
Step S103: according to target increment extraction rules modification view, the task of execution cost increment extraction thread.
When needing extraction to fix the data of certain day, only needing amendment view to realize, not needing to modify to each task.Such as, we need the increment in extraction on May 1st, 2015, only need view to be revised as following sql, and then call the task of increment extraction thread.
createorreplaceviewv_jzbs_import_dateas
select
'['||a.SUBJECT_AREA||'.'||a.task_name||']'||'
'||to_char('$$DAY＝20150501')Import_Date
fromrep_all_tasksetldeva,N_JZBS_IMPORT_DATEb
wherea.subject_area＝'HR_ALL'anda.task_type_name＝'Session'andb.FLAG＝'1'
groupbya.SUBJECT_AREA,a.task_name；
A kind of increment extraction method based on InformaticaPowercenter that application the present embodiment provides, sets up Parameter File, specifies title and the path of described Parameter File, the increment extraction thread generating Parameter File is set up in mapping according to view and described Parameter File, according to target increment extraction rules modification view, the task of execution cost increment extraction thread, because view is used for obtaining all increment extraction threads under specified folder by being connected to preset knowledge storehouse, when carrying out the task scheduling of increment extraction, only need revise view as required, timestamp is realized by parameter configuration, and parameter is extracted by the sql in view to generate, if need automatically generate every day, the then date function in sql usage data storehouse, if need to fix certain sky, then change sql into fixed dates, increment can every day Automatic Extraction, also the increment after certain day can fixedly be taken out, the increment extraction of timestamp can be carried out neatly according to demand.
Present invention also offers a kind of increment extraction system based on InformaticaPowercenter, Fig. 8 shows the structural representation of the increment extraction system embodiment that the present invention is based on InformaticaPowercenter, comprising:
Parameter File sets up module 101, for setting up Parameter File, specifies title and the path of described Parameter File;
Increment extraction thread sets up module 102, sets up module 101 be connected with described Parameter File, for setting up the increment extraction thread generating Parameter File according to the mapping of view and described Parameter File;
Increment extraction module 103, sets up module 102 with described increment extraction thread and is connected, for according to target increment extraction rules modification view, and the task of execution cost increment extraction thread.
Particularly, as shown in Figure 9, described increment extraction thread is set up module 102 and is comprised:
Submodule 201 set up by view, for generating the view for obtaining all increment extraction threads under specified folder by being connected to preset knowledge storehouse;
Submodule 202 is set up in mapping, sets up submodule 201 be connected with described view, for setting up the mapping of described view and described Parameter File;
Task creation submodule 203, sets up submodule 202 with described mapping and is connected, for setting up the task of described increment extraction thread according to the path of described Parameter File;
Parameter configuration submodule 204, is connected with described task creation submodule 203, for adding the configuration information of parameter in the workflow of scheduling increment extraction;
Association submodule 205, is connected with described parameter configuration submodule 204, for the described task generating Parameter File is joined the workflow of described scheduling increment extraction foremost.
A kind of increment extraction system based on InformaticaPowercenter that application the present embodiment provides, sets up Parameter File, specifies title and the path of described Parameter File, the increment extraction thread generating Parameter File is set up in mapping according to view and described Parameter File, according to target increment extraction rules modification view, the task of execution cost increment extraction thread, because view is used for obtaining all increment extraction threads under specified folder by being connected to preset knowledge storehouse, when carrying out the task scheduling of increment extraction, only need revise view as required, timestamp is realized by parameter configuration, and parameter is extracted by the sql in view to generate, if need automatically generate every day, the then date function in sql usage data storehouse, if need to fix certain sky, then change sql into fixed dates, increment can every day Automatic Extraction, also the increment after certain day can fixedly be taken out, the increment extraction of timestamp can be carried out neatly according to demand.
It should be noted that, each embodiment in this instructions all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For system class embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Finally, also it should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Be described in detail method and system provided by the present invention above, apply specific case herein and set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (6)
1. based on an increment extraction method of InformaticaPowercenter, it is characterized in that, comprising:
Set up Parameter File, specify title and the path of described Parameter File;
The increment extraction thread generating Parameter File is set up in mapping according to view and described Parameter File;
According to target increment extraction rules modification view, the task of execution cost increment extraction thread.
2. the increment extraction method based on InformaticaPowercenter according to claim 1, is characterized in that, sets up the extraction thread generating Parameter File comprise according to the mapping of view and described Parameter File:
Generate the view being used for obtaining all increment extraction threads under specified folder by being connected to preset knowledge storehouse;
Set up the mapping of described view and described Parameter File;
The task of described increment extraction thread is set up according to the path of described Parameter File;
The configuration information of parameter is added in the workflow of scheduling increment extraction;
The described task generating Parameter File is joined the workflow of described scheduling increment extraction foremost.
3. the increment extraction method based on InformaticaPowercenter according to claim 2, is characterized in that, the configuration information of described parameter comprises:
The path of Parameter File and parameter name.
4., based on an increment extraction system of InformaticaPowercenter, it is characterized in that, comprising:
Parameter File sets up module, for setting up Parameter File, specifies title and the path of described Parameter File;
Increment extraction thread sets up module, for setting up the increment extraction thread generating Parameter File according to the mapping of view and described Parameter File;
Increment extraction module, for according to target increment extraction rules modification view, the task of execution cost increment extraction thread.
5. the increment extraction system based on InformaticaPowercenter according to claim 4, is characterized in that, described increment extraction thread is set up module and comprised:
Submodule set up by view, for generating the view for obtaining all increment extraction threads under specified folder by being connected to preset knowledge storehouse;
Submodule is set up in mapping, for setting up the mapping of described view and described Parameter File;
Task creation submodule, for setting up the task of described increment extraction thread according to the path of described Parameter File;
Parameter configuration submodule, for adding the configuration information of parameter in the workflow of scheduling increment extraction;
Association submodule, for joining the workflow of described scheduling increment extraction foremost by the described task generating Parameter File.
6. the increment extraction system based on InformaticaPowercenter according to claim 5, it is characterized in that, the configuration information of described parameter comprises:
The path of Parameter File and parameter name.
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Address after: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 building 710 room research Co-patentee after: STATE GRID INFORMATION & TELECOMMUNICATION GROUP Co.,Ltd. Patentee after: BEIJING CHINA POWER INFORMATION TECHNOLOGY Co.,Ltd. Co-patentee after: STATE GRID CORPORATION OF CHINA Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 building 710 room research Co-patentee before: STATE GRID INFORMATION & TELECOMMUNICATION GROUP Co.,Ltd. Patentee before: BEIJING CHINA POWER INFORMATION TECHNOLOGY Co.,Ltd. Co-patentee before: State Grid Corporation of China |
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Effective date of registration: 20190723 Address after: 100085 Building 32-3-4108-4109, Pioneer Road, Haidian District, Beijing Co-patentee after: STATE GRID CORPORATION OF CHINA Patentee after: BEIJING GUODIANTONG NETWORK TECHNOLOGY Co.,Ltd. Co-patentee after: STATE GRID INFORMATION & TELECOMMUNICATION GROUP Co.,Ltd. Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 building 710 room research Co-patentee before: STATE GRID INFORMATION & TELECOMMUNICATION GROUP Co.,Ltd. Patentee before: BEIJING CHINA POWER INFORMATION TECHNOLOGY Co.,Ltd. Co-patentee before: STATE GRID CORPORATION OF CHINA |