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Month: April 2018

Using Cosmos DB For Graph Data

Published 2018-04-02 by Kevin Feasel

Jose Mendes has an introduction to the Cosmos DB graph engine:

Gremlin is the graph traversal language of Apache TinkerPop, an open source Graph Computing Framework. Gremlin allows the users to write complex queries to traverse their graphs by using a composed sequence of steps, with each step performing an operation on the data stream (further details here). There are 4 fundamental steps:

· transform: transform the objects in the stream

· filter: remove objects from the stream

· sideEffect: pass the object, but yield some side effect

· branch: decide which step to take

Click through for a quick example showing how to create and populate a graph.

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Will It Bit?

Published 2018-04-02 by Kevin Feasel

Louis Davidson wants to see what he can cast to a bit type:

There are no other textual/alpha string values that will cast to a bit value, but the numeric values that will cast to a bit are voluminous (even some that are in string format). Consider the following eight statements:

SELECT CAST(100 AS bit);
SELECT CAST(-100 AS bit);
SELECT CAST(99999999999999999999999999999999999999 AS bit);
SELECT CAST(-99999999999999999999999999999999999999 AS bit);
SELECT CAST(88.999999 AS bit);
SELECT CAST('1' AS bit);
SELECT CAST('2' AS bit);
SELECT CAST('999999' AS bit);

Danged if they didn’t all work, and all return 1.

Check out what else Louis tries to cast to a bit type.

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All About Power BI Licensing

Published 2018-04-02 by Kevin Feasel

Reza Rad has a guide for the perplexed when it comes to licensing Power BI:

The pricing table above may scare you off and you may immediately think of not going through the embedded path. However, I need to let you know that there are some scenarios which Power BI Embedded can be a much more cost-effective option than Pro. Here is an example:

Assume that you have 100 users for your Power BI solution. And your users are not connecting all at the same time to use Power BI reports. You may have the maximum of 300 page renders per hour for them if you use embedded. In such case, embedded for that scenario would cost you about $700 USD per month, where the Power BI Pro for 100 users would be $1000 USD per month. This means saving of $3,600 USD per year. This is an example scenario that Power BI Embedded can be more cost-effective than Pro.

Give this a careful reading if you’re looking to implement Power BI in your environment.

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