analysis – Helen Anderson

25 ways to excel with Excel

Thu, 23 Jul 2020 09:58:35 +0000

It doesn't replace databases and BI tools for reporting, but Excel is just what you need for quick analysis and cleansing of small data sets

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Conditional logic with the CASE expression

Mon, 19 Aug 2019 05:11:04 +0000

CASE is SQL's answer to other programming languages IF-ELSE statement. If you need to test a condition and return a value CASE is the expression you need.

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Why you need SQL Window Functions (part 2)

Sun, 21 Jul 2019 07:52:18 +0000

SQL Server Window Functions are incredibly powerful and allow us to access a total from another row and bucket data to show top performers.

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Why you need SQL Window Functions (part 1)

Mon, 15 Jul 2019 07:31:56 +0000

SQL window functions are incredibly powerful and allow us to see the rows in a table with a new column showing a running total, rank or moving average.

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SQL Aggregate Functions and Mariah Carey

Mon, 17 Jun 2019 03:48:02 +0000

Aggregate functions bring your data to life.
They allow you to take a standard table and use a function or two to build metrics and answer questions about the data.

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Entity relationship diagrams

Mon, 20 May 2019 08:00:10 +0000

On first glance, Entity Relationship Diagrams may look like a spaghetti mess. This post hopes to demystify how they fit together with Sonic the Hedgehog

The post Entity relationship diagrams appeared first on Helen Anderson.

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