Languages and coding

Rajendra Gupta
difference between RANK() and DENSE_RANK() functions

Overview of SQL RANK functions

July 3, 2019 by

We perform calculations on data using various aggregated functions such as Max, Min, and AVG. We get a single output row using these functions. SQL Sever provides SQL RANK functions to specify rank for individual fields as per the categorizations. It returns an aggregated value for each participating row. SQL RANK functions also knows as Window Functions.

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Sifiso W. Ndlovu
Data imported using Custom SQL Statement.

Monitor batch statements of the Get Data feature in Power BI using SQL Server extended events

July 1, 2019 by

One shared characteristic among popular data visualization tools such as Power BI is the ease at which data can be extracted from a variety of disparate data sources, usually at a click of a button, as shown in Figure 1. Such convenience, though, tends to come at a cost as you often have little control over how background scripts used to extract data are generated. Yet, this should be of utmost concern for data architects and BI developers alike as rarely do you find auto-generated scripts that are efficient and optimal. In this article, join me as I put on my DBA hat and trace, monitor and review SQL batch statements that are auto-generated by the Get Data feature in Power BI using SQL Server Extended Events.

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Rajendra Gupta

Overview of SQL Server Rounding Functions – SQL Round, Ceiling and Floor

June 26, 2019 by

Developers deal with numerous data types on a day- to-day basis. We need to change the data type or format as per the user requirement. We use ‘SQL Server rounding function’ like SQL Round, Ceiling and Floor to round the values to the nearest numbers. We perform an arithmetic calculation on data as well. It is a challenging task to change the value of a number to an approximate number. We do not want to display decimal numbers in the application front end.

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Rajendra Gupta
Get-DbaTable DBATools command

Script SQL Server objects using DBATools

June 20, 2019 by

This article gives an overview to generate scripts for SQL Server objects with Windows PowerShell tool DBATools.

Database administrators or developers require generating scripts for SQL Server objects. We might need scripts to store a copy of object script before object change, create specific objects into other database environments such as development, UAT or non-prod environment. It is an excellent practice to keep a copy of the object before making a change to it. We can easily refer to the old script and roll back if required. Usually, we use SSMS Generate Scripts wizard to get these scripts.

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