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Tag: SQL wildcards

When writing SQL, use wild cards to find combinations of values, where you are unsure of their placement in a record.

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 use case statements in SQL

Posted on February 6, 2021March 5, 2021 By admin No Comments on how to use case statements in SQL

In recent posts on SQL here on this website, we have covered off a number of ways to extract your data from wildcards to filters. Here we are going to build on that learning, but bring in a new dimension in the use of case statements. These are very handy to use when you may…

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SQL, SQLite

How to use wildcards in SQL

Posted on February 4, 2021May 23, 2021 By admin No Comments on How to use wildcards in SQL

Following on from from our previous posts on SQL, this post will help to explain how to use wildcards in your query. What would you use a wild card in the first place? When a data analyst dealing with a large dataset, it is most likely that they will not know every piece of data….

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SQL, SQLite, strings

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