Mary Zheng

Mary has graduated from Mechanical Engineering department at ShangHai JiaoTong University. She also holds a Master degree in Computer Science from Webster University. During her studies she has been involved with a large number of projects ranging from programming and software engineering. She works as a senior Software Engineer in the telecommunications sector where she acts as a leader and works with others to design, implement, and monitor the software solution.

sql
Mary ZhengFebruary 25th, 2022
0 170
SQL EXISTS Operator
1. Introduction The SQL EXISTS operator is a logical operator that is used to check whether a subquery returns any…
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sql
Mary ZhengFebruary 17th, 2022
0 97
SQL HAVING Clause
1. Introduction A SQL HAVING clause is a part of a SQL SELECT statement that filters out the rows that…
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sql
Mary ZhengFebruary 2nd, 2022
0 85
SQL Server PIVOT Operator Explained
1. Introduction SQL Server has supported the PIVOT operator since version 2005. It is used to generate a multidimensional report…
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sql
Mary ZhengJanuary 25th, 2022
0 51
SQL Server FORMAT() Function
1. Introduction SQL Server provides a format function that returns a formatted value based on the specified format. It is…
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sql
Mary ZhengJanuary 21st, 2022
0 139
SQL Transaction Example
1. Introduction An SQL transaction is a logical unit of one or more SQL statements. A transaction has ACID properties:…
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sql
Mary ZhengJanuary 7th, 2022
0 56
SQL Server REPLACE() Function
1. Introduction SQL defines the REPLACE function which takes three required arguments and returns a new string in which all…
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sql
Mary ZhengDecember 22nd, 2021
0 82
SQL Add Column Example
In this article, we will explain how to add a column in SQL. 1. Introduction An application’s requirements change over…
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sql
Mary ZhengDecember 16th, 2021
1 352
SQL IF Statement Example
1. Introduction Structured Query Language (SQL) supports the IF statement like any other programming language. The IF statement tests a…
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Kubernetes
Mary ZhengDecember 9th, 2021
0 167
Introduction to Kubernetes Helm Charts
In this article, we explain the basics about Kubernetes Helm Charts. 1. Kubernetes Helm Charts Kubernetes Helm Chart is a…
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DevOps
Mary ZhengNovember 18th, 2021
0 177
Getting Started with Jenkins Pipeline
1. Introduction Jenkins is an open-source automation server that enables developers to build, test, and deploy their software reliably. It…
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