Nisarg Upadhyay

Nisarg Upadhyay
Latest posts by Nisarg Upadhyay (see all)
Screenshot of email

T-SQL scripts to update statistics based on the row modification

December 24, 2020 by

In this article, we are going to learn how we can develop a T-SQL script to update statistics of tables based on the row modification. It is always a challenging task to perform maintenance on a table that has billions of rows. During the early years of my professional career, I was assigned a project and one of our clients had performance issues. The initial analysis showed that due to frequent data modifications, a specific table’s statistics become outdated.

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Job schedule

T-SQL scripts to generate database health reports

October 21, 2020 by

In this article, I am going to show how we can automate a database daily health report using T-SQL scripts. For a senior database administrator, it is always important to review the health of the database server. When a DBA manages many database servers, it becomes difficult to visit every server and review the status of databases, SQL jobs, and backups. To ease the monitoring, I have developed a T-SQL script that populates the following information:

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Run Select query

An overview of the db_datareader role

October 12, 2020 by

In this article, we are going to learn about the db_datareader role. It is a fixed, database-level role. The database-level roles are a group of security principals that are used to manage the permissions within the databases more efficiently. There are two types of database-level roles. One is a predefined database-level role, and another is custom database-level roles. The custom database-level roles can be created by the database administrator or the member of the db_owner role.

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New Job Schedule that executes a SP to populate the unused tables of SQL Database

Identify unused tables of SQL databases

September 24, 2020 by

In this article, I am going to demonstrate how we can identify the unused tables of a given SQL Database. As a database administrator, we must maintain the tables and objects of the SQL Database. In my organization, when we add a new column or change the data type of a column, we export the data of the existing table in the backup table. Often, we forgot to review and maintain those backup tables. So as a solution, we decided to create a SQL Job that populates the list of unused tables and email the list to the DBA Team for review.

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create and drop temp table: create a new temp table using select query.

Learn MySQL: Create and drop temp tables

August 18, 2020 by

In this article, we are going to learn how to create a temp table and further drop these tables. The temporary tables are session-specific tables that are created within the session. When the session closes, the table is dropped by itself. A temporary table exists within a session only; therefore, a table created by one session is not visible to another session. For example, Session ID 501 has created a temporary table then session ID 502 cannot access it or manipulate it. Two different sessions can have a temporary table with the same name.

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The Backup of is compressed and split into multiple files

Compress and split SQL database backups using WinRar

August 4, 2020 by

Recently, we have received a strange request from our customer. They want us to set up a schedule a backup job that generates a backup of SQL database, compress the backup file in multiple compressed archive files (WinRAR files.) We tried to explain to the customer that the SQL Server native backups are capable of compressing the backup file, and it can split a large and compressed backup into multiple backup files. But they insisted us to use the WinRAR software to compress and split the backup.

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Sort and Filter: Order by on expression

Learn MySQL: Sorting and Filtering data in a table

July 28, 2020 by

In this article, we will learn how we can sort and filter data using the WHERE clause and sort the data using the ORDER BY clause. In my previous article, Learn MySQL: Querying data from MySQL server using the SELECT statement, we learned how to generate the ER diagram using reverse-engineering the database using MySQL workbench and basics of SELECT statement and usage. Ins this article, we will learn how we can sort and filter data using the WHERE clause and sort the data using the ORDER BY clause.

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What is pagination: Limit 10, offset 10

Learn MySQL: What is pagination

July 27, 2020 by

In this article, I am going to explain that in MySQL, what is pagination and how we can implement it. When we are populating a large dataset from the MySQL database, it is not easy to read all the records on the same page. Using pagination, we can divide the result-set into multiple pages, and that increases the readability of the result set. In this article, I am going to explain:

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PageVerify is Checksum

Enforce SQL database best practices using SQL Server Policy-Based Management

July 24, 2020 by

In this article, I am going to explain how we can enforce the SQL database best practices using Policy-Based Management. The policy-based management feature of SQL Server was introduced in SQL Server 2005. This feature was useful because it helps database administrators to define and enforce the database policies based on the organizations’ requirements.

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