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Tag: Database table

Where information is stored in rows and columns, to be accessed by users when they need it.

how to write subqueries in SQL

Posted on April 5, 2021May 6, 2021 By admin No Comments on how to write subqueries in SQL

In SQL a lot of the times there will be a need to write subqueries that will extract data that you can analyse. But what if you want to use the data as input to another query that can then be used to give you the result you desire? This is is the power of…

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SQL

how to update records in SQL

Posted on March 15, 2021May 23, 2021 By admin No Comments on how to update records in SQL

There are multiple reasons for wanting to update records in a database table, from data quality to enriching your data for any machine learning projects. One example maybe where you want to add a creation date to a record. In this blog post we will look at how to update database records, and also where…

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CRUD, SQL

how to create and drop a table in SQL

Posted on February 6, 2021November 8, 2022 By admin No Comments on how to create and drop a table in SQL

If you are working on data analytics , and have access to databases that you can load data into and manipulate, then read on. There maybe a reason for you have your own partitioned table with data in it, but you need to know how to create a database. The creation of a table can…

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SQL, SQLite

How to data cleanse a database table

Posted on May 14, 2020February 22, 2021 By admin No Comments on How to data cleanse a database table

In Data Analytics, that is a very relevant question, and something I look to implement in most projects, sometimes it is too easy to click the shortcut icon to your spreadsheet application! Here we are looking to bring a little automation into these videos. Building on How to import data from files and Removing characters from…

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Python Data Cleansing, Python Tutorial, Working with databases

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