customer deduplication

Tags: mongodbRecently wrote a crawler tool, the data stored in the Web site MongoDB, because the data are duplicated, so I set up the database when the index, the following is my step, the set name is Drugitem,Here is the collection:I want to create a unique index for the name field because I want to ensure that name is not duplicated:In this way I run the program to find that the data is much less than the original set unique index, I carefully review the Discovery program in the Name field is

Business Requirements:A table has the Id,n1,n2,n3 field, which is a new empty table,Table B has id,n1,n2,n3,n4,n5 fields, such as old tables containing data,Now the record of the N1,N2,N3 combination in B table is re-imported into a table, and a table primary key is also entered valueScenario: The records of B table after the query to go to the weight, while the results of the records are numbered, the sequence number as a table to insert the ID value, SQL statement as follows:INSERT INTO A表(id,

There are many online customer service systems, such as the ring letter and the United States, and recently, we have developed an online customer service (1v1 communication chat) using H5+CSS3+FONTJS+SWIPER+WCPOP and other technical architectures, which can be applied to online temporary chat, online consultation and other scenarios. realizes the message, the expression (contains the motion diagram), the pi

The specific steps of making QQ online1, first login to http://is.qq.com/webpresence/code.shtml website2. Choose Style3. Fill in the relevant data4. Generate page code5, copy the code to "WordPad", the Save file name is 001.html6, create a self-built column, the writing board in the pattern of the section copy to the "Self-built column"7, after all completed, the icon set the link, the address is: http://wpa.qq.com/msgrd?v=1uin= your QQ number SITE=240ZT Save the release just OK!http://wpa.qq.c

message to tell the user a confirmation password, the user use this password to be able to log in. 5, IP Address security Control-the system records the client sent the requested IP address and physical address, through the IP switch, can effectively prevent hackers through other routes into the Golden Intelligence system. 6, software operations logging-important modules all the operations are recorded in the log, the important data system in the form of recycling bin retention, the system ad

implementation and execution, testers and developers participate in this activity, which makes development and testing easy to agree on this type of problem, testers have a lot less resistance, a lot of confrontation is invisible.Although this activity for 3, 4 level defect and specifically to find, to repair, people feel a bit rigid and mechanical, but the activity itself led us to usability and serviceability problems in-depth study and discussion, deepen the understanding of such problems, A

Recently, in a project, repeated data needs to be removed, which was previously implemented in the background. Now the customer needs to de-duplicate data in the foreground, so he thought of javascript scripts. Project requirements: Code: The Code is as follows:

Document directory 　 [Customer relationship management] [stakeholders] 1/upstream customers: Supplier _ (commodity) 2/downstream customers: Item Sales _ major customers Item Sales _ Retailers3/sales department: Manager Marketing Personnel4/product: Ordinary products Other products[Requirement Description] 1. Archive Management 1. Archive 1. Upstream customer archive 1. Supplier basic info. 2. Maintain as

Customer churn is a big problem facing banks in the increasingly competitive market. By analyzing the reasons of bank customer churn, this paper puts forward a method of establishing customer churn prediction model. By using the model, we find out the forecast loss group, forecast the loss trend, and then formulate effective control strategy to minimize the

During this time, I wrote the toolbox of the Project Manager-getting out of the software Workshop: how to become the toolbox of the development regular army (3) and the Implementation Manager-getting out of the software workshop: how to become a regular army for development with a dozen guns from three to five people (5 ). So I wanted to write the Toolbox supported by customer service in one breath. From then on, the development, implementation, and s

What is a designated customer service A company in the use of marketing QQ customer service may belong to different positions, such as sales, pre-sales Consulting, after-sale and so on, set the designated customer service, customers in the Open session window will receive all the customer Service list, customers can

Data mining and analysis can be said to be the fastest-growing technology in the field of information, many different fields of experts have gained the space for development, making data mining become a hot topic of discussion in the business community.With the development of information technology, people collect data more and more rich, the accumulation of data is growing, the amount of data to GB or even terabytes, and high-level data has become the mainstream, so data mining this fusion of v