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...
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. ...
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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 ...
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Analytics Platform System (PDW) SQL database in Microsoft FabricNote The Get Started Querying with Transact-SQL learning path provides more in-depth content, along with practical examples.Welcome to the Writing Transact-SQL ...
SQL Data Types - A Practical Guide How to Create and Drop Tables in SQL? SELECT Query in SQL - Master the Basics SQL SELECT DISTINCT Statement - Explained SQL INSERT INTO Statement WHERE Clause in SQL SQL UPDATE Query Delete Query in SQL ...
Clients of outsourced databases need Query Authentication (QA) guaranteeing the integrity (correctness and completeness), and authenticity of the query results returned by potentially compromised providers. Existing results provide QA assurances for a limited class of queries by deploying several software cr...
For more information, see Optimize index maintenance to improve query performance and reduce resource consumption.PARTITIONSpecifies that only one partition of an index is rebuilt or reorganized. PARTITION can't be specified if index_name isn't a partitioned index.PARTITION = ALL rebuilds all ...
Hyperscale separates the query processing engine from the components that provide long-term storage and durability for the data. This architecture allows you to smoothly scale storage capacity as far as needed (up to 128 TB), and the ability to scale compute resources rapidly. ...
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...