sql interview questions what is data integrity explain #sqlinterviewquestionsandanswers

#sqlinterviewquestionsandanswers

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sql interview questions what is data integrity explain

Data integrity in SQL refers to the accuracy, consistency, and reliability of stored data. It ensures that information maintains its quality through operations like insertion, update, or deletion. Maintaining data integrity guarantees that the data adheres to predefined rules and constraints, fostering reliability and trustworthiness in the database, ultimately supporting informed decision-making and system functionality.

SQL interview questions assess a candidate's understanding of database concepts and query language. Topics include SQL basics, joins, constraints, and functions. Experienced candidates may face tricky questions, real-world scenarios, and challenges related to database design. Auto-increment ensures unique identifiers, and substring extracts part of a string. SQL Server knowledge is vital. Examples may involve complex joins or data manipulation. Candidates should grasp data integrity and be familiar with common SQL functions. Tricky questions test problem-solving skills. Interviewers often focus on practical scenarios to evaluate candidates' application of SQL knowledge.

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