Auto Create Statistics and Auto Update Statistics

Nisarg Upadhyay 69 views
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Statistics comprises lightweight objects that are used by SQL Server Query optimizer to determine the optimal way to retrieve data from the table. SQL Server optimizer uses the histogram of column statistics to choose the optimal query execution plan. If a query uses a predicate which already has statistics, the query optimizer can get all the required information from the statistics to determine the optimal way to execute the query. SQL Server creates statistics in two ways:

  1. When a new index is created on a column.
  2. If the AUTO_CREATE_STATISTICS option is enabled.

In this article, Auto Create Statistics and Auto Update Statistics options are analyzed. They are database specific and can be configured using SQL Server management studio and T-SQL Query. Read More

SSRS Reports Development in Simple Terms

Haroon Ashraf 135 views
SSRS Reports Development in Simple Terms
4.7 (93.33%) 3 vote[s]

The article is dedicated to the fundamentals of SQL Server Reporting Services (SSRS) development and aimed at beginners and professionals interested in database development.

A direct method in the form of a walkthrough is used to discuss the core concepts and their implementation in regards to SQL Server Reporting Services (SSRS).

The main focus of the article is to give the basic concepts of reports development rather than discuss the latest SQL Server Reporting Services (SSRS) versions and their features.

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Several Ways to Insert Split Delimited Strings in a Column

Nisarg Upadhyay 340 views
Several Ways to Insert Split Delimited Strings in a Column
4.3 (86.67%) 3 vote[s]

In this article, I will demonstrate several ways to split the delimited string and insert it in into a column of a table in SQL Server. You can do it using the following methods:

  1. Convert delimited string into XML, use XQuery to split the string, and save it into the table.
  2. Create a user-defined table-valued function to split the string and insert it into the table.
  3. Split the string using STRING_SPLIT function and insert the output into a table. Read More

Microsoft Graph or Azure Active Directory Graph API: Which is better?

Kibo Hutchinson 195 views
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Are you a .NET developer who is stuck in great confusion when it comes to choosing Azure Active Directory or Microsoft Graph?

We all have look at those multiple posts on which you can choose for better web development. In this article, we will be providing some guidance along with a bit of roadmap to clarify things for all of the existing and new developers who want to access directory-based features. Let us begin. Read More

Learn Basic Data Analysis with SQL Window Functions

Haroon Ashraf 909 views
Learn Basic Data Analysis with SQL Window Functions
4 (80%) 6 vote[s]

This article is about T-SQL (Transact-SQL) Window functions and their basic use in day-to-day data analysis tasks.

There are many alternatives to T-SQL when it comes to data analysis. However, when improvements over time and introduction of Window functions are considered, T-SQL is capable of performing data analysis on a basic level and, in some cases, even beyond that. Read More

T-SQL SET Operators Part 2: INTERSECT and EXCEPT

Nisarg Upadhyay 2,027 views
T-SQL SET Operators Part 2: INTERSECT and EXCEPT
3.8 (75.56%) 9 vote[s]

In my previous article, I explained the basics of set operators, their types, and prerequisites for their use. I also talked about UNION and UNION ALL operators, their usage and differences.

In this article, we’re going to learn the following:

  1. EXCEPT and INTERSECT operators.
  2. Difference between INTERSECT and INNER JOIN.
  3. The detailed explanation of INTERSECT and EXCEPT with an example.

EXCEPT and INTERSECT operators were introduced in SQL Server 2005. Both are set operators used to combine the result sets generated by two queries and retrieve the desired output. Read More

How to Properly Use the T-SQL IsNumeric Function

Haroon Ashraf 235 views
How to Properly Use the T-SQL IsNumeric Function
4.7 (93.33%) 3 vote[s]

This article is focused on the T-SQL (Transact-SQL) IsNumeric function and its proper use in day-to-day SQL scripting tasks.

We will also see why it is important to understand how and why IsNumeric can be used – both incorrectly and correctly.

There may be some better alternatives to IsNumeric depending on the context. However, in the cases we’re going to cover in this article, I see this function as the best possible choice. Read More

T-SQL Datetime Data Type

Kenneth Igiri 364 views
T-SQL Datetime Data Type
3.3 (66.67%) 3 vote[s]

Introduction

Data types are attributes that specify the kind of data that objects such as columns, local variables, expressions, and parameters can hold. Across the RDBMS world, data types are typically grouped into string, numeric, and date data types.

T-SQL supports 6 date and time data types namely:

  1. Datetime
  2. Smalldatetime
  3. Date
  4. Time
  5. Datetime2
  6. Datetimeoffset

The first two data types are considered as legacy versions of the newer ones. In this article, we focus on the date data types and, specifically, on the datetime and datetime2 data types available in SQL Server. Table 1 gives details of the various date and time data types available in SQL Server. Read More

Advanced SQL: Variations and Different Use cases of T-SQL Insert Statement

Nisarg Upadhyay 426 views
Advanced SQL: Variations and Different Use cases of T-SQL Insert Statement
3.8 (75%) 4 vote[s]

In my previous article, I demonstrated:

  1. Insert the output of the table-valued function in the SQL table.
  2. Insert the output of the table-valued function that is created on the remote database server.

In this article, I am going to demonstrate:

  1. Copy data between two tables, created in a different schema.
  2. Copy data between two tables, created in different databases on the same server.
  3. Copy data between two tables created, in different databases resides the different server (Cross server query)

Read More

Jenkins Plugin Implementation – Part 1

Artem Kravets 376 views
Jenkins Plugin Implementation – Part 1
4.8 (95%) 4 vote[s]

Jenkins Plugin implementation generally consists of the following stages:

  • Environment preparation;

  • Implementing the plugin’s UI;

  • Implementing the plugin’s business logic;

  • Implementing validation;

  • JUnit test coverage;

In this part of the article, we’ll look at the first two stages. Read More