SQL Complex Interview Questions Find the 2nd highest salary from json data in sql query

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student and hospital management project in sql server
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In SQL interviews, candidates may be asked to find the second-highest salary from JSON data. This task assesses their ability to extract and analyze JSON values within SQL queries. The challenge involves understanding JSON functions, sorting, and selecting specific data points. Interviewees are expected to demonstrate proficiency in combining SQL and JSON manipulation for practical problem-solving. The question evaluates problem-solving skills, data extraction techniques, and understanding of complex SQL scenarios.
SQL interview preparation involves understanding basic concepts like queries, joins, and scenarios. Questions range from fundamental to tricky, assessing real-time problem-solving skills. Production support interviews may focus on troubleshooting and optimizing SQL queries. For data engineers, emphasis shifts to database design and management. JSON data integration with SQL Server involves extracting, manipulating, and querying structured data within a relational database, crucial for handling diverse data types. Preparing for interviews includes mastering SQL fundamentals, optimizing queries, and demonstrating practical problem-solving capabilities tailored to specific roles in the database domain.

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