October 25, 2020
DAX functions

How to calculate last month value in DAX for Power BI?

How to calculate the last month value in DAX for Power BI? Managers, Financial advisors and Business Consultants uses intensively month comparisons. To create these comparison measures, use the DAX time intelligence functions available in the DAX editor. Let’s use the PREVIOUSMONTH DAX function to address this. How to calculate

Time economy is key when you create a SQL Server partition.
SQL Server Partition

Create a SQL Server partitioned table

How to create a table partition in SQL Server? Let’s consider a large table with Sales data. So, this table have a column that stores the year of the sale and the table stores millions of lines. Let’s consider also that some reports reads this data to display yearly totals

SQL Server Partition

What is a SQL Server table partition?

A SQL Server table partition allows to physically split the data of one table on the disk. This data division allows to access directly one unique partition instead of all the data from the table. First, why all large tables should have partitions? When accessing hundreds of million lines, it

SQL Server Index

What is a SQL Server clustered index?

What is a SQL Server clustered index? The definition of a SQL Server index is a structure, i.e. a file, stored physically in a disk. Unlike the master data and the log data files that are the main files composing a database. Basically to find the associated lines or rows

SQL Server Downloads

Download SQL Server Management Studio 18 (SSMS)

How to Download SQL Server Management Studio 18 (SSMS), the latest version? To connect to a SQL Server database in order to query tables or views. Or to develop a full database project, SSMS is the most used software, and it’s a free tool! How to get and install SQL

SQL Server Downloads

Download SQL Server 2019 developer edition

Where to download SQL Server 2019 developer edition? This edition is free and contains the full set of features. It provides a serious option for evaluation and testing. Therefore, do not use it in a production environment for a company or an organization for example. Where to download the SQL

SQL Server Index

How to drop a SQL Server index?

This article is on how to drop a SQL Server index from an existing table on a given database. It can be a relational or a transactional database. For instance, learn here why you need an index optimization plan on databasejournal. How to drop a SQL Server index? To drop

SQL Server Index

How to disable a SQL Server index?

How to disable a SQL Server index? To disable an index for performance reasons, use this code and adjust it to your index and table names. For instance, let’s consider a large sales table, with million lines. Let’s consider that the table has a non-unique and non-clustered index on the

SQL Server Index

How to reorganize a SQL Server index?

How to reorganize a SQL Server index? This operation defragments the lower level of the indexes by reordering the pages physically, from left to right. The reorganize operation also compacts the pages of the index. To better understand this, imagine a book of recipes with the pages not ordered anymore.

SQL Server Index

How to rebuild a SQL Server index?

Maintain the indexes is vital to keep a database up to speed with optimal performance. To rebuild an index use the command to alter and rebuild. Technically rebuilding the index delete it and then create it again. After that, the index as no more fragmentation and the index rows are

SQL Server Index

How to create a SQL Server index?

Create a SQL Server index to improve the performance of queries on tables and clustered views. To create an index, use this example and adapt it to the project requirements. Indexes are the first recommended step to performance optimization in SQL Server. How to create a simple SQL Server index

SQL Server Stored Procedures

How to alter a SQL Server stored procedure?

How to alter an existing stored procedure in a SQL Server database? Simply use the alter command instead of the create command one to modify an existing SQL procedure. In this example let’s add the grouping on months and employees to sum up and group data. Let’s add also a

SQL Server Stored Procedures

How to create a SQL Server stored procedure?

How to create a simple SQL Server stored procedure? This example in transact SQL code list all the Customers from the Customers table by using the selection function. This example do not use any where clause to filter the results. Its a simple example to remind the syntax creation for

SQL Server Views

How to modify a SQL Server view?

How to modify an existing T-SQL view ? To develop a SQL Server database or more generally an application, create a database and tables is mandatory. The views are also very useful because they allow you to adjust a specific number of rows and columns without changing the table structure.

SQL Server Views

How to create a SQL Server view?

How to create a SQL Server view to display specific columns from an existing table? Consider a view as a virtual table defined by a SQL query. It’s a set of columns and rows from a table. A user defined view is a object managed by a SQL Server developer.

Microsoft SQL Server Abbreviations

XMLA stands for XML for Analysis

XMLA stands for XML for Analysis stands for Extensible Mark-up Language for Analysis. It’s a language built on top of XML language. It allows data access from standard multidimensional data sources. Client applications accesses Microsoft cubes and tabular models using the XMLA language and the HTTP protocol. XMLA stands for

SQL Server Views

How to delete a SQL Server view?

How to delete a SQL Server view from the database? How to drop a view? For a SQL developer it’s a good practice to have a clean database and remove the unused or useless code. Unlike the tables, the views can be deleted from the database using a simple T-SQL

DAX functions

How to calculate year-to-date value in DAX for Power BI?

How to calculate a year-to-date value of the sales in DAX for Power BI? Also called YTD, it represents the total to date of a given measure. For example, to calculate the year-to-date sales total with a DAX formula, use the built-in function called TOTALYTD. In this example, simply copy

SQL Server Functions

How to delete a SQL Server function?

How to delete a SQL Server function? Or how to drop a SQL Server function, also called user-defined function? This SQL command allows to get rid of a SQL Server function. However, it does not check if the function exists. This article shows how to do this with a very simple

SQL Server Functions

How to call a SQL Server function?

How to call a SQL Server user defined function? The SQL syntax to call a function is different from the call to a stored procedure. Use SQL Server function the same way you select data from a table. How to call a SQL Server function? A SQL Server user-defined function

SQL Server Tables

How to delete a SQL Server table?

How to delete a SQL Server table? How to drop a table without checking if the table exists? Assume the object is already in the database. How to delete a SQL Server table from the database with a query? Here is a SQL script to create a SQL Server table.

SQL Server Errors

SQL Server Truncate Table Error Cannot find the object

How to avoid the SQL Server Truncate Table Error Cannot find the object? In SQL Server, to clear the full content of a table, the fastest way is to run a truncate Table query. The Truncate is different from the Delete From query because it empties all the lines in