Practical SQL Query Interview Questions (SQL Server Queries examples with answers) In this part, we will see SQL practice questions which contain both complex SQL queries interview questions and basic SQL Interview Questions. Let’s see important SQL queries for interview 76. How to get unique rec...
If we want to succeed in SQL Server query tuning, we should have sufficient knowledge about some tools.STATISTICS IOreport is one of the major tools, that helps to find out the disk activity statistics of the executed queries. When we enable this option, it displays the statistical disk acti...
Once we execute the above query, it shows the message of ‘table created successfully’ In the above query, we have defined one more constraint UNIQUE on the lab_no column which means that lab_no column values are unique not have a single repeated value. ...
In this article, I will try to bridge that gap by giving some practical reasons why using SELECT * in the SQL query is not a good idea. 7 Reasons why using SELECT * in a Production SQL Query is a Bad Practice Without wasting any more of your time, here are my seven reasons which ...
Each algorithm is designed to detect telltale patterns hidden in your data. Using them independently or in combination, you can answer a wide range of practical questions. For example, using the algorithms, you can perform a market share analysis to help evaluate th...
It's a best practice to copy the contents of the XML to a table variable to avoid repeated, inefficient access to the XML (if you're going to access the XML only once, though, just run the OPENXML query without creating the table variable first). The second statement in Figure 3 ...
Of course, developing directly from the cloud is not practical for all situations. If you choose to work with an on-premises SQL Server database as your development data source, then you must develop a mechanism for synchronizing your local installation with the cloud installation. You could do...
Couple of questions on SQL Server 2008 - Beginner Covert sql output into excel and schedule the automate job that runs every friday and send email with attachment . Coverting UTC date time to local date time in sql server CR and LF not working in a SELECT statement create a job without sq...
Adding values one by one is not a practical way of populating the database. Let’s add multiple values using lists. Create an insert query for the Student table. Create a list of multiple rows with column names and values. Execute the query with a second argument as values_list. query...
Prepare for SQL job interviews by practicing common SQL interview questions and problems. Be ready to demonstrate your SQL knowledge through practical tests and discussions. Highlight your projects and any relevant experience during the interview. By building a strong foundation, gaining practical experie...