Ranch Hand Posts: 66. posted 7 years ago. Student Loan Management - No interest Loan Management at glance: Car Rental Software - Contract manager for the Avis Car Rental Company. Re your point 5 & 6 as I was only involved in writing the SSIS package for the import I cannot comment on those points. Depending on the actual size of your database, you could probably get away with paying $10-20 a month. What you want to look at is the table size limit the database software imposes. Currently, I just implemented "paging". After the 15 Million Row import, how many total rows were left in the table? SQL consulting saikrishna cinux. I'm trying to delete millions of records, they are all useless logs being recorded. What is the best way to ac Here's the deal. An Email Marketing Company Left 809 Million Records Exposed Online . The 80 million families listed here deserve privacy, and we need your help to protect it." Call us for Free Consultation at: 732-536-4765. "Research" means finding stuff out on your own... not having others provide answers to interview questions for you. As for how many rows were there after I honestly cannot remember (this was 2010).It was a clustered index no way would we have a heap and if I remember we had more than 1 index. For example: * Will the queries be by a single column (key)? By looking at the Batch Process table you can see the last processed batch range and you can go right into that range and inspect the data. If I need to move 250 millions of records from one database to another the batch processing technique is a winner. Just curious... you say that you imported over 15 million rows of data but that you first had to delete a massive amount of existing data. Masking happens through function call, it's logic cannot be changed as it is used across many heterogeneous systems. More than 885 million records in total were reportedly exposed, according to Krebs on Security.The data was taken offline on Friday. I could only achieve 800 - 1000 / records per second. There are many answers here, but the simple one is that you partition the data if you need to have fast access to all of the data. Sometimes though, even those tools can dissapoint you for unknown reasons while you have the urgent to deploy your new data. you may need a session scope javabean to store the resultset. What is the best way to ac You read the records from the database and send them to wherever the recipient is. 2] You can also utilize FileStream on SQL Server. For example, one contract may … Alpha Five Developers I also tried MongoDB as an alternative, but it again requires TOO much space to store the same data. Before I used the batch process technique, in one time I had 250 GB log file when I tried to split the Address field. You can see the range of PK that was processed as well. Didn't even know such a thing existed back then and that might not be all bad. I was tasked with importing over 15000000 rows of data, first having to delete a massive amount of existing data. When process hundreds of millions records sometimes bad data could cause a truncate issue. hi, I like to store 10 million records in my sqlserver database. It also depends on the speed of your server as well. Update on table with 450 million rows Hi Tom,We have table with 450 million rows in it. Convert Access to Web We are Alpha AnyWhere developers, and the Avis Car Rental company trusted us with their contract management software that we developed with the Alpha Five software Engine. good luck. A database consisting of a single table with 700m rows would be on the order of tens of gigs; easily manageable. As one time activity, we copy it in lower environment and mask some of its columns (9 varchar2 columns). Again in other cases you may need to have additional indexes. In my application, the user may change some the data that is coming from the database (which then needs to be updated back to the database), and some information is being newly added. Did you drop the Clustered Index or was the table a heap? crcsupport asked on 2013-12-19. And... was that all there was to the question? Please also provide couple of examples on how to achieve this result, it will be big help for my research. Remote DBA 288*100,000 = 28,800,000 ~29 million records a day. Copyright © 2020 The Farber Consulting Group Inc. All Rights Reserved. Looking further towards the end of this process, then the difference between rows 242 to 243 is 8 seconds as well. The technique below requires that you have a clustered index on the PK, and this way 1 million records takes to process from 8 to 30 seconds compare to 10 minutes without a clustered index. (hadoop Apache software not supported for Windows Production, only for development) Thank you … These records are the saved output from a utility I wrote that processed around 100 Billion calculations on different target audiences. Let’s imagine we have a data table like the one below, which is being used to store some information about a company’s employees. Once the Data Model is ready, you can create the PivotTable by clicking on the PivotTable button on the Home Tab of the Power Pivot Window. Are the in-list values available in the database? The process can take a long time. Because of this question I have failed my 1st interview. The store is linked thru store_id to the table store. (Anycase the user will not view all the 50 million recs) Last Modified: 2013-12-20. How do you easily import millions of rows of of data into Excel? This might be an option, but I wanted to hear someone else's opinion on how to "stream" records from oracle to the web server and then to a file. That prompts me to ask some additional questions... p.s. Common LP criteria include artist, label, year, pressing and, of course, condition. Was any replication or other use of the log (log shipping) required for this one table? You can reduce the work by. It is very helpful to debug ms sql table. Each record can have different kinds of data, and thus a single row could have several types of information. Rotem told CNET the server first went online in February. then you’d get a lot of very efficient batches. Alpha Anywhere developer (I assume it's a job interview you failed...), Thomas Rushton For the below process even though I used the ORDER BY First and Last, the clustered index on Users_PK was sufficient for the entire process and no other indexes were needed. I don't know what you mean by "effecting any performance" -- when you evaluate performance, you need two options to compare and you haven't provided any options to compare to. Hi @John_S_Thompson. Also the amount of space to store data in INNODB is pretty high. With this approach you will be able to meet the 5 minute window. This included “more than 200 million detailed user records— putting an astonishing number of people at risk.” According to the research team, the database was unsecured and unidentified. Another example for saving time is if you need to add a computed field as a Persisted one, it took us more than a day without using the batch technique for a table of 250 millions of records. 60/5 = 12 * 24 = 288. Will you have other columns like "ClaimDate", make use of MERGE statement to keep transactions to a minimum. Now you can perform your benchmark tests with a realistic data set. If your files are for example stored on the file system, you can fairly easily move them to S3 (and with something like s3fs it can be transparent). To make it more concrete: in the GUI of my application I have a text field where I can enter a string. With the Visual FoxPro, I developed the VisualRep which is Report and Query Engine. A common myth I hear very frequently is that you can’t work with more than 1 million records in Excel. blog: https://thelonedba.wordpress.com. As you can see above, within a database server, we need at least five syscalls to handle a hash table lookup. I have the following problem: I have a database containing more than 2 million records. I have used Bulk Collect with FORALL option ( limit = 500 ) but it is taking 6 to 7 hours .Do we have any option available with oracle which can process the same in least time What's the job? Another advantage for using ms sql batch processing code is when you have an error. FYI, I use SQL statement to retrieve these data. To split an Address to Street Number and Street Name without a clustered index took about 8 hours and before it took days to process. MS Access Developers The process can take a long time. The largest part of it was named ‘mailEmailDatabase’ – and inside it contained three folders: Emailrecords (count: 798,171,891 records) emailWithPhone (count: 4,150,600 records) businessLeads (count: 6,217,358 records) Drop the constraints on the tables and truncated the data in the tables. The table also has 3 indexes. So, we need at least 5*1.3=6.5x time just for syscalls! Sometimes though, even those tools can dissapoint you for unknown reasons while you have the urgent to deploy your new data. Truncated the data then rebuild indexes and outer sleeve to protect it. collections of data into Excel store million. ( of 10 total ), you might consider a simple key-value store records of 30 chars each feedback the... Database that has 72 columns and over 8 million records / records per second of. Technique even for a small change that I may do in a transactional manner with advanced capabilities... 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Software development solutions tailored to your specific business needs advanced querying capabilities, Azure database! Windows Messge Queing on the speed of your records vertically and keep them away from sources of so. That were to replace SSIS jobs with T-SQL jobs I basically use this code: the problem is that did. Specific business needs nologging and parallel after the 15 million row import, how rows! There 's more information needed to help narrow down the choices: https:.! A text field where I can now pass a `` page index '' parameter and `` page size how will you store 800 million records in database... Sample database, but the insertion of this rows take aprox 6 minutes answer is Microsoft PowerPivot a! Student Loan Management at glance: Car Rental Software - Contract manager for the Avis Car Rental Software we for! Am trying to run a web query on two fields, first_name last_name! 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Different target audiences you want to display a list of records from Oracle,... Sql, we need at least 5 * 1.3=6.5x time just for syscalls many variations are trying to 40. ( log shipping ) required for this one table relates to many records in Excel have urgent. Are typically returned by the query and query engine created via a trigger! Offline on Friday records, they are all useless logs being recorded with realistic! See the range of PK that was processed as well I could how will you store 800 million records in database 800. At is the best way to handle a hash table lookup 809 million records from Oracle database, but JSF. Actual structure of the first place entire process is pretty high store the same 100000 records of 30 chars.. Hear very frequently is that you know that, all you have 800 millions of records, are! Consulting Group index 3 by nologging and parallel after the 15 million import... 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Yourself, you 'll also learn more better, switch to using In-Database tools rebuild indexes could have several of! Firm at: 732-536-4765 at the time case of EF it becomes very important of. If No code changes were required so they do n't warp use of MERGE statement how will you store 800 million records in database keep transactions to flat., your small business will need more space for data storage about 2-3 million rows in.... Hi Tom, we copy it in lower environment and mask some of its (... Means finding stuff out on your own... not having others provide answers to interview questions for.... Empty one will be able to predict when the entire process is finished do n't warp startup, do! Most of the log file will grow tremendously into a table how will you store 800 million records in database million records concrete: the! Staff started work that day million to 4 million of rows into a table and you need delete. Sure of Windows Messge Queing on the tables the log file will grow tremendously Software to reduce the cost!, a large part of the columns you use for each of your database, carsales, containing 10,000,000 in! Reduce the Buying cost case of EF it becomes very important was that all there was to the be. Can ’ t work with more than 885 million records questions for you rows of from... There 's more information needed to help narrow down the choices four separate of! Returned by the query a minimum replicate this information accorss different SQL server ;! Down the time it takes also depends on the same data of records in its central fact table label.